CertMgr Class

Properties Methods Events Config Settings Errors

The CertMgr class is used to create, read, and manage certificates.

Syntax

class ipworksdtls.CertMgr

Remarks

The class methods, such as list_certificate_stores or list_store_certificates, are used to list certificate stores and certificates. The corresponding lists are returned through the on_store_list and on_cert_list events. Encoded certificates are provided through the events.

You can load a certificate by setting the cert property of the class. Then you can get information about the certificate through the corresponding fields of the cert property (described below).

The cert_subject, cert_serial_number, and cert_issuer properties identify the certificate. The cert_effective_date and cert_expiration_date show the time boundaries of the certificate.

cert_public_key, cert_public_key_algorithm, cert_public_key_length, and cert_version provide information about the certificate keys and the certificate format (version).

cert_usage_flags specifies the intended usage of the certificate. The cert_usage property provides a text description of these flags.

Property List

The following is the full list of the properties of the class with short descriptions. Click on the links for further details.


cert_effective_date	The date on which this certificate becomes valid.
cert_expiration_date	The date on which the certificate expires.
cert_extended_key_usage	A comma-delimited list of extended key usage identifiers.
cert_fingerprint	The hex-encoded, 16-byte MD5 fingerprint of the certificate.
cert_fingerprint_sha1	The hex-encoded, 20-byte SHA-1 fingerprint of the certificate.
cert_fingerprint_sha256	The hex-encoded, 32-byte SHA-256 fingerprint of the certificate.
cert_issuer	The issuer of the certificate.
cert_private_key	The private key of the certificate (if available).
cert_private_key_available	Whether a PrivateKey is available for the selected certificate.
cert_private_key_container	The name of the PrivateKey container for the certificate (if available).
cert_public_key	The public key of the certificate.
cert_public_key_algorithm	The textual description of the certificate's public key algorithm.
cert_public_key_length	The length of the certificate's public key (in bits).
cert_serial_number	The serial number of the certificate encoded as a string.
cert_signature_algorithm	The text description of the certificate's signature algorithm.
cert_store	The name of the certificate store for the client certificate.
cert_store_password	If the type of certificate store requires a password, this property is used to specify the password needed to open the certificate store.
cert_store_type	The type of certificate store for this certificate.
cert_subject_alt_names	Comma-separated lists of alternative subject names for the certificate.
cert_thumbprint_md5	The MD5 hash of the certificate.
cert_thumbprint_sha1	The SHA-1 hash of the certificate.
cert_thumbprint_sha256	The SHA-256 hash of the certificate.
cert_usage	The text description of UsageFlags .
cert_usage_flags	The flags that show intended use for the certificate.
cert_version	The certificate's version number.
cert_subject	The subject of the certificate used for client authentication.
cert_encoded	The certificate (PEM/Base64 encoded).
cert_extension_count	The number of records in the CertExtension arrays.
cert_extension_critical	This property specifies whether or not the extension is defined as critical.
cert_extension_oid	This property contains the ASN.
cert_extension_value	This property contains the raw value of the certificate extension.
exported_cert	This is the exported certificate string.
export_format	This is the format to which the certificate is exported.
export_private_key	This controls whether to export the private key.

Method List

The following is the full list of the methods of the class with short descriptions. Click on the links for further details.


check_crl	This method checks the Certificate Revocation List (CRL) specified by the currently loaded certificate.
check_ocsp	This method uses Online Certificate Status Protocol (OCSP) to check the status of the currently loaded certificate.
config	Sets or retrieves a configuration setting.
create_certificate	This method creates a new self-signed certificate in the current store.
create_key	This method creates a new keyset associated with the provided name.
delete_certificate	This method deletes the currently selected certificate from the store.
delete_key	This method deletes the keyset associated with the provided name.
export_certificate	This method exports the currently selected certificate.
generate_csr	This method generates a new Certificate Signing Request (CSR) to be sent to a signing authority.
import_certificate	This method imports a certificate from a file into the current certificate store.
import_signed_csr	This method imports a signed Certificate Signing Request (CSR).
issue_certificate	This creates a new certificate in the current store and is signed by the selected certificate.
list_certificate_stores	This lists the certificate stores.
list_keys	This lists the keysets in a Cryptographic Service Provider (CSP).
list_machine_stores	This lists the machine certificate stores.
list_store_certificates	This lists the certificates in a store.
read_certificate	This loads a certificate from a file.
read_csr	This reads a Certificate Signing Request (CSR).
reset	This resets all certificate properties to their default values.
save_certificate	This method saves the currently selected public certificate to a file.
show_certificate_chain	This shows the certificate chain.
sign_csr	This creates a signed certificate from a Certificate Signing Request (CSR).

Event List

The following is the full list of the events fired by the class with short descriptions. Click on the links for further details.


on_cert_chain	This event shows the certificate chain for the certificate (see the ShowCertificateChain method).
on_cert_list	This event lists the certificates in a store (see the ListStoreCertificates method).
on_error	Fired when information is available about errors during data delivery.
on_key_list	This lists the keysets in a Cryptographic Service Provider (CSP); see the ListKeys method.
on_log	This event fires once for each log message.
on_store_list	This lists the system certificate stores (see the ListCertificateStores and ListMachineStores methods).

Config Settings

The following is a list of config settings for the class with short descriptions. Click on the links for further details.


BasicConstraints	The hex-encoded value of the certificate's Basic Constraints extension.
CertComment	A comment to include in a saved certificate.
CertCustomExtensionCount	The number of records in the CertCustomExtension arrays.
CertCustomExtensionCritical[i]	Whether or not the extension is defined as critical.
CertCustomExtensionOID[i]	The ASN of the extension at index 'i'.
CertCustomExtensionValue[i]	The raw value of the extension at index 'i'.
CertExtendedKeyUsage	The extended key usage of the certificate.
CertKeyLength	The public key length for created certificates and keys.
CertKeyType	The types of keys created for new certificates.
CertPublicKeyAlgorithm	The public key algorithm used when a certificate is created.
CertSignatureAlgorithm	The signature algorithm used when creating certificates.
CertSubjectAltNames	Subject Alternative Names for creating or issuing certificates.
CertThumbprint	The thumbprint of the certificate to be loaded.
CertUsageFlags	Sets the flags indicating the usage of the created certificate.
CertValidityOffset	The number of days until the certificate becomes valid.
CertValidityTime	The validity period for the certificate.
CreatedKey	The PKCS8 formatted private and public key pair created after calling CreateKey.
CSP	The Cryptographic Service Provider.
CSRIgnoredExtensions	Extensions to be ignorned when signing a CSR.
CSRKey	The PKCS8 formatted private key to use when generating a CSR.
EncodeExportedCert	Whether the certificate being exported to a string is encoded.
HasCRL	Whether the certificate supports the CRL extension.
HasOCSP	Whether the certificate supports the OCSP extension.
ImportCertAction	Specified the action to take if a matching certificate or a link to a matching certificate already exists.
ImportCertStoreType	The type of certificate store being specified for import.
JWKAlgorithm	The JWK algorithm.
JWKExportX5C	Whether to export a certificate chain to the x5c parameter.
JWKKeyId	The JWK key Id.
JWKKeyOps	The JWK intended key operations list.
JWKUse	The JWK use parameter value.
KeyFormat	How the public and private key are formatted.
KSP	The Key Storage Provider.
LogLevel	The level of detail that is logged.
PFXCertEncryptionAlgorithm	Certificate encryption algorithm used when exporting to PFX format.
PFXKeyEncryptionAlgorithm	Private key encryption algorithm used when exporting to PFX format.
ReplaceKey	Whether or not to replace an existing key when creating a new key.
RequestSubjectAltNames	Subject Alternative Names for a Certificate Signing Request.
TPMMigrationPassword	The password for the certificate or key.
X509Algorithm	Public Key Algorithm OID.
X509SignatureAlgorithm	Signature Algorithm OID.
BuildInfo	Information about the product's build.
CodePage	The system code page used for Unicode to Multibyte translations.
LicenseInfo	Information about the current license.
MaskSensitiveData	Whether sensitive data is masked in log messages.
ProcessIdleEvents	Whether the class uses its internal event loop to process events when the main thread is idle.
SelectWaitMillis	The length of time in milliseconds the class will wait when DoEvents is called if there are no events to process.
UseInternalSecurityAPI	Whether or not to use the system security libraries or an internal implementation.

cert_effective_date Property

The date on which this certificate becomes valid.

Syntax

def get_cert_effective_date() -> str: ...

cert_effective_date = property(get_cert_effective_date, None)

Default Value

Remarks

The date on which this certificate becomes valid. Before this date, it is not valid. The date is localized to the system's time zone. The following example illustrates the format of an encoded date:

23-Jan-2000 15:00:00.

This property is read-only.

cert_expiration_date Property

The date on which the certificate expires.

Syntax

def get_cert_expiration_date() -> str: ...

cert_expiration_date = property(get_cert_expiration_date, None)

Default Value

Remarks

The date on which the certificate expires. After this date, the certificate will no longer be valid. The date is localized to the system's time zone. The following example illustrates the format of an encoded date:

23-Jan-2001 15:00:00.

This property is read-only.

cert_extended_key_usage Property

A comma-delimited list of extended key usage identifiers.

Syntax

def get_cert_extended_key_usage() -> str: ...

cert_extended_key_usage = property(get_cert_extended_key_usage, None)

Default Value

Remarks

A comma-delimited list of extended key usage identifiers. These are the same as ASN.1 object identifiers (OIDs).

This property is read-only.

cert_fingerprint Property

The hex-encoded, 16-byte MD5 fingerprint of the certificate.

Syntax

def get_cert_fingerprint() -> str: ...

cert_fingerprint = property(get_cert_fingerprint, None)

Default Value

Remarks

The hex-encoded, 16-byte MD5 fingerprint of the certificate. This property is primarily used for keys which do not have a corresponding X.509 public certificate, such as PEM keys that only contain a private key. It is commonly used for SSH keys.

The following example illustrates the format: bc:2a:72:af:fe:58:17:43:7a:5f:ba:5a:7c:90:f7:02

This property is read-only.

cert_fingerprint_sha1 Property

The hex-encoded, 20-byte SHA-1 fingerprint of the certificate.

Syntax

def get_cert_fingerprint_sha1() -> str: ...

cert_fingerprint_sha1 = property(get_cert_fingerprint_sha1, None)

Default Value

Remarks

The hex-encoded, 20-byte SHA-1 fingerprint of the certificate. This property is primarily used for keys which do not have a corresponding X.509 public certificate, such as PEM keys that only contain a private key. It is commonly used for SSH keys.

The following example illustrates the format: 30:7b:fa:38:65:83:ff:da:b4:4e:07:3f:17:b8:a4:ed:80:be:ff:84

This property is read-only.

cert_fingerprint_sha256 Property

The hex-encoded, 32-byte SHA-256 fingerprint of the certificate.

Syntax

def get_cert_fingerprint_sha256() -> str: ...

cert_fingerprint_sha256 = property(get_cert_fingerprint_sha256, None)

Default Value

Remarks

The hex-encoded, 32-byte SHA-256 fingerprint of the certificate. This property is primarily used for keys which do not have a corresponding X.509 public certificate, such as PEM keys that only contain a private key. It is commonly used for SSH keys.

The following example illustrates the format: 6a:80:5c:33:a9:43:ea:b0:96:12:8a:64:96:30:ef:4a:8a:96:86:ce:f4:c7:be:10:24:8e:2b:60:9e:f3:59:53

This property is read-only.

cert_issuer Property

The issuer of the certificate.

Syntax

def get_cert_issuer() -> str: ...

cert_issuer = property(get_cert_issuer, None)

Default Value

Remarks

The issuer of the certificate. This property contains a string representation of the name of the issuing authority for the certificate.

This property is read-only.

cert_private_key Property

The private key of the certificate (if available).

Syntax

def get_cert_private_key() -> str: ...

cert_private_key = property(get_cert_private_key, None)

Default Value

Remarks

The private key of the certificate (if available). The key is provided as PEM/Base64-encoded data.

Note: The cert_private_key may be available but not exportable. In this case, cert_private_key returns an empty string.

This property is read-only.

cert_private_key_available Property

Whether a PrivateKey is available for the selected certificate.

Syntax

def get_cert_private_key_available() -> bool: ...

cert_private_key_available = property(get_cert_private_key_available, None)

Default Value

FALSE

Remarks

Whether a cert_private_key is available for the selected certificate. If cert_private_key_available is True, the certificate may be used for authentication purposes (e.g., server authentication).

This property is read-only.

cert_private_key_container Property

The name of the PrivateKey container for the certificate (if available).

Syntax

def get_cert_private_key_container() -> str: ...

cert_private_key_container = property(get_cert_private_key_container, None)

Default Value

Remarks

The name of the cert_private_key container for the certificate (if available). This functionality is available only on Windows platforms.

This property is read-only.

cert_public_key Property

The public key of the certificate.

Syntax

def get_cert_public_key() -> str: ...

cert_public_key = property(get_cert_public_key, None)

Default Value

Remarks

The public key of the certificate. The key is provided as PEM/Base64-encoded data.

This property is read-only.

cert_public_key_algorithm Property

The textual description of the certificate's public key algorithm.

Syntax

def get_cert_public_key_algorithm() -> str: ...

cert_public_key_algorithm = property(get_cert_public_key_algorithm, None)

Default Value

Remarks

The textual description of the certificate's public key algorithm. The property contains either the name of the algorithm (e.g., "RSA" or "RSA_DH") or an object identifier (OID) string representing the algorithm.

This property is read-only.

cert_public_key_length Property

The length of the certificate's public key (in bits).

Syntax

def get_cert_public_key_length() -> int: ...

cert_public_key_length = property(get_cert_public_key_length, None)

Default Value

Remarks

The length of the certificate's public key (in bits). Common values are 512, 1024, and 2048.

This property is read-only.

cert_serial_number Property

The serial number of the certificate encoded as a string.

Syntax

def get_cert_serial_number() -> str: ...

cert_serial_number = property(get_cert_serial_number, None)

Default Value

Remarks

The serial number of the certificate encoded as a string. The number is encoded as a series of hexadecimal digits, with each pair representing a byte of the serial number.

This property is read-only.

cert_signature_algorithm Property

The text description of the certificate's signature algorithm.

Syntax

def get_cert_signature_algorithm() -> str: ...

cert_signature_algorithm = property(get_cert_signature_algorithm, None)

Default Value

Remarks

The text description of the certificate's signature algorithm. The property contains either the name of the algorithm (e.g., "RSA" or "RSA_MD5RSA") or an object identifier (OID) string representing the algorithm.

This property is read-only.

cert_store Property

The name of the certificate store for the client certificate.

Syntax

def get_cert_store() -> bytes: ...
def set_cert_store(value: bytes) -> None: ...

cert_store = property(get_cert_store, set_cert_store)

Default Value

"MY"

Remarks

The name of the certificate store for the client certificate.

The cert_store_type property denotes the type of the certificate store specified by cert_store. If the store is password-protected, specify the password in cert_store_password.

cert_store is used in conjunction with the cert_subject property to specify client certificates. If cert_store has a value, and cert_subject or cert_encoded is set, a search for a certificate is initiated. Please see the cert_subject property for details.

Designations of certificate stores are platform dependent.

The following designations are the most common User and Machine certificate stores in Windows:


MY	A certificate store holding personal certificates with their associated private keys.
CA	Certifying authority certificates.
ROOT	Root certificates.

When the certificate store type is cstPFXFile, this property must be set to the name of the file. When the type is cstPFXBlob, the property must be set to the binary contents of a PFX file (i.e., PKCS#12 certificate store).

The cert_store_type property specifies the type of the certificate store specified by cert_store. If the store is password protected, specify the password in cert_store_password.

Designations of certificate stores are platform dependent.

The following designations are the most common User and Machine certificate stores in Windows:


MY	A certificate store holding personal certificates with their associated private keys.
CA	Certifying authority certificates.
ROOT	Root certificates.

cert_store_password Property

If the type of certificate store requires a password, this property is used to specify the password needed to open the certificate store.

Syntax

def get_cert_store_password() -> str: ...
def set_cert_store_password(value: str) -> None: ...

cert_store_password = property(get_cert_store_password, set_cert_store_password)

Default Value

Remarks

If the type of certificate store requires a password, this property is used to specify the password needed to open the certificate store.

The value of this property is used to open the certificate store if the certificate store requires a password.

cert_store_type Property

The type of certificate store for this certificate.

Syntax

def get_cert_store_type() -> int: ...
def set_cert_store_type(value: int) -> None: ...

cert_store_type = property(get_cert_store_type, set_cert_store_type)

Default Value

Remarks

The type of certificate store for this certificate.

The class supports both public and private keys in a variety of formats. When the cstAuto value is used, the class will automatically determine the type. This property can take one of the following values:


0 (cstUser - default)	For Windows, this specifies that the certificate store is a certificate store owned by the current user. Note: This store type is not available in Java.
1 (cstMachine)	For Windows, this specifies that the certificate store is a machine store. Note: This store type is not available in Java.
2 (cstPFXFile)	The certificate store is the name of a PFX (PKCS#12) file containing certificates.
3 (cstPFXBlob)	The certificate store is a string (binary or Base64-encoded) representing a certificate store in PFX (PKCS#12) format.
4 (cstJKSFile)	The certificate store is the name of a Java Key Store (JKS) file containing certificates. Note: This store type is only available in Java.
5 (cstJKSBlob)	The certificate store is a string (binary or Base64-encoded) representing a certificate store in Java Key Store (JKS) format. Note: This store type is only available in Java.
6 (cstPEMKeyFile)	The certificate store is the name of a PEM-encoded file that contains a private key and an optional certificate.
7 (cstPEMKeyBlob)	The certificate store is a string (binary or Base64-encoded) that contains a private key and an optional certificate.
8 (cstPublicKeyFile)	The certificate store is the name of a file that contains a PEM- or DER-encoded public key certificate.
9 (cstPublicKeyBlob)	The certificate store is a string (binary or Base64-encoded) that contains a PEM- or DER-encoded public key certificate.
10 (cstSSHPublicKeyBlob)	The certificate store is a string (binary or Base64-encoded) that contains an SSH-style public key.
11 (cstP7BFile)	The certificate store is the name of a PKCS#7 file containing certificates.
12 (cstP7BBlob)	The certificate store is a string (binary) representing a certificate store in PKCS#7 format.
13 (cstSSHPublicKeyFile)	The certificate store is the name of a file that contains an SSH-style public key.
14 (cstPPKFile)	The certificate store is the name of a file that contains a PPK (PuTTY Private Key).
15 (cstPPKBlob)	The certificate store is a string (binary) that contains a PPK (PuTTY Private Key).
16 (cstXMLFile)	The certificate store is the name of a file that contains a certificate in XML format.
17 (cstXMLBlob)	The certificate store is a string that contains a certificate in XML format.
18 (cstJWKFile)	The certificate store is the name of a file that contains a JWK (JSON Web Key).
19 (cstJWKBlob)	The certificate store is a string that contains a JWK (JSON Web Key).
21 (cstBCFKSFile)	The certificate store is the name of a file that contains a BCFKS (Bouncy Castle FIPS Key Store). Note: This store type is only available in Java and .NET.
22 (cstBCFKSBlob)	The certificate store is a string (binary or Base64-encoded) representing a certificate store in BCFKS (Bouncy Castle FIPS Key Store) format. Note: This store type is only available in Java and .NET.
23 (cstPKCS11)	The certificate is present on a physical security key accessible via a PKCS#11 interface. To use a security key, the necessary data must first be collected using the CertMgr class. The list_store_certificates method may be called after setting cert_store_type to `cstPKCS11`, cert_store_password to the PIN, and cert_store to the full path of the PKCS#11 DLL. The certificate information returned in the on_cert_list event's `CertEncoded` parameter may be saved for later use. When using a certificate, pass the previously saved security key information as the cert_store and set cert_store_password to the PIN. Code Example. SSH Authentication with Security Key: `certmgr.CertStoreType = CertStoreTypes.cstPKCS11; certmgr.OnCertList += (s, e) => { secKeyBlob = e.CertEncoded; }; certmgr.CertStore = @"C:\Program Files\OpenSC Project\OpenSC\pkcs11\opensc-pkcs11.dll"; certmgr.CertStorePassword = "123456"; //PIN certmgr.ListStoreCertificates(); sftp.SSHCert = new Certificate(CertStoreTypes.cstPKCS11, secKeyBlob, "123456", "*"); sftp.SSHUser = "test"; sftp.SSHLogon("myhost", 22);`
99 (cstAuto)	The store type is automatically detected from the input data. This setting may be used with both public and private keys and can detect any of the supported formats automatically.


0 (cstUser - default)	For Windows, this specifies that the certificate store is a certificate store owned by the current user. Note: This store type is not available in Java.
1 (cstMachine)	For Windows, this specifies that the certificate store is a machine store. Note: This store type is not available in Java.
2 (cstPFXFile)	The certificate store is the name of a PFX (PKCS#12) file containing certificates.
3 (cstPFXBlob)	The certificate store is a string (binary or Base64-encoded) representing a certificate store in PFX (PKCS#12) format.
4 (cstJKSFile)	The certificate store is the name of a Java Key Store (JKS) file containing certificates. Note: This store type is only available in Java.
5 (cstJKSBlob)	The certificate store is a string (binary or Base64-encoded) representing a certificate store in Java Key Store (JKS) format. Note: This store type is only available in Java.
6 (cstPEMKeyFile)	The certificate store is the name of a PEM-encoded file that contains a private key and an optional certificate.
7 (cstPEMKeyBlob)	The certificate store is a string (binary or Base64-encoded) that contains a private key and an optional certificate.
8 (cstPublicKeyFile)	The certificate store is the name of a file that contains a PEM- or DER-encoded public key certificate.
9 (cstPublicKeyBlob)	The certificate store is a string (binary or Base64-encoded) that contains a PEM- or DER-encoded public key certificate.
10 (cstSSHPublicKeyBlob)	The certificate store is a string (binary or Base64-encoded) that contains an SSH-style public key.
11 (cstP7BFile)	The certificate store is the name of a PKCS#7 file containing certificates.
12 (cstP7BBlob)	The certificate store is a string (binary) representing a certificate store in PKCS#7 format.
13 (cstSSHPublicKeyFile)	The certificate store is the name of a file that contains an SSH-style public key.
14 (cstPPKFile)	The certificate store is the name of a file that contains a PPK (PuTTY Private Key).
15 (cstPPKBlob)	The certificate store is a string (binary) that contains a PPK (PuTTY Private Key).
16 (cstXMLFile)	The certificate store is the name of a file that contains a certificate in XML format.
17 (cstXMLBlob)	The certificate store is a string that contains a certificate in XML format.
18 (cstJWKFile)	The certificate store is the name of a file that contains a JWK (JSON Web Key).
19 (cstJWKBlob)	The certificate store is a string that contains a JWK (JSON Web Key).
21 (cstBCFKSFile)	The certificate store is the name of a file that contains a BCFKS (Bouncy Castle FIPS Key Store). Note: This store type is only available in Java and .NET.
22 (cstBCFKSBlob)	The certificate store is a string (binary or Base64-encoded) representing a certificate store in BCFKS (Bouncy Castle FIPS Key Store) format. Note: This store type is only available in Java and .NET.
23 (cstPKCS11)	The certificate is present on a physical security key accessible via a PKCS#11 interface. To use a security key, the necessary data must first be collected using the CertMgr class. The list_store_certificates method may be called after setting cert_store_type to `cstPKCS11`, cert_store_password to the PIN, and cert_store to the full path of the PKCS#11 DLL. The certificate information returned in the on_cert_list event's `CertEncoded` parameter may be saved for later use. When using a certificate, pass the previously saved security key information as the and set to the PIN. Code Example. SSH Authentication with Security Key: `certmgr.CertStoreType = CertStoreTypes.cstPKCS11; certmgr.OnCertList += (s, e) => { secKeyBlob = e.CertEncoded; }; certmgr.CertStore = @"C:\Program Files\OpenSC Project\OpenSC\pkcs11\opensc-pkcs11.dll"; certmgr.CertStorePassword = "123456"; //PIN certmgr.ListStoreCertificates(); sftp.SSHCert = new Certificate(CertStoreTypes.cstPKCS11, secKeyBlob, "123456", "*"); sftp.SSHUser = "test"; sftp.SSHLogon("myhost", 22);`
99 (cstAuto)	The store type is automatically detected from the input data. This setting may be used with both public and private keys and can detect any of the supported formats automatically.

cert_subject_alt_names Property

Comma-separated lists of alternative subject names for the certificate.

Syntax

def get_cert_subject_alt_names() -> str: ...

cert_subject_alt_names = property(get_cert_subject_alt_names, None)

Default Value

Remarks

Comma-separated lists of alternative subject names for the certificate.

This property is read-only.

cert_thumbprint_md5 Property

The MD5 hash of the certificate.

Syntax

def get_cert_thumbprint_md5() -> str: ...

cert_thumbprint_md5 = property(get_cert_thumbprint_md5, None)

Default Value

Remarks

The MD5 hash of the certificate. It is primarily used for X.509 certificates. If the hash does not already exist, it is automatically computed.

This property is read-only.

cert_thumbprint_sha1 Property

The SHA-1 hash of the certificate.

Syntax

def get_cert_thumbprint_sha1() -> str: ...

cert_thumbprint_sha1 = property(get_cert_thumbprint_sha1, None)

Default Value

Remarks

The SHA-1 hash of the certificate. It is primarily used for X.509 certificates. If the hash does not already exist, it is automatically computed.

This property is read-only.

cert_thumbprint_sha256 Property

The SHA-256 hash of the certificate.

Syntax

def get_cert_thumbprint_sha256() -> str: ...

cert_thumbprint_sha256 = property(get_cert_thumbprint_sha256, None)

Default Value

Remarks

The SHA-256 hash of the certificate. It is primarily used for X.509 certificates. If the hash does not already exist, it is automatically computed.

This property is read-only.

cert_usage Property

The text description of UsageFlags .

Syntax

def get_cert_usage() -> str: ...

cert_usage = property(get_cert_usage, None)

Default Value

Remarks

The text description of cert_usage_flags.

This value will be one or more of the following strings and will be separated by commas:

Digital Signature
Non-Repudiation
Key Encipherment
Data Encipherment
Key Agreement
Certificate Signing
CRL Signing
Encipher Only

If the provider is OpenSSL, the value is a comma-separated list of X.509 certificate extension names.

This property is read-only.

cert_usage_flags Property

The flags that show intended use for the certificate.

Syntax

def get_cert_usage_flags() -> int: ...

cert_usage_flags = property(get_cert_usage_flags, None)

Default Value

Remarks

The flags that show intended use for the certificate. The value of cert_usage_flags is a combination of the following flags:


0x80	Digital Signature
0x40	Non-Repudiation
0x20	Key Encipherment
0x10	Data Encipherment
0x08	Key Agreement
0x04	Certificate Signing
0x02	CRL Signing
0x01	Encipher Only

Please see the cert_usage property for a text representation of cert_usage_flags.

This functionality currently is not available when the provider is OpenSSL.

This property is read-only.

cert_version Property

The certificate's version number.

Syntax

def get_cert_version() -> str: ...

cert_version = property(get_cert_version, None)

Default Value

Remarks

The certificate's version number. The possible values are the strings "V1", "V2", and "V3".

This property is read-only.

cert_subject Property

The subject of the certificate used for client authentication.

Syntax

def get_cert_subject() -> str: ...
def set_cert_subject(value: str) -> None: ...

cert_subject = property(get_cert_subject, set_cert_subject)

Default Value

Remarks

The subject of the certificate used for client authentication.

This property must be set after all other certificate properties are set. When this property is set, a search is performed in the current certificate store to locate a certificate with a matching subject.

If a matching certificate is found, the property is set to the full subject of the matching certificate.

If an exact match is not found, the store is searched for subjects containing the value of the property.

If a match is still not found, the property is set to an empty string, and no certificate is selected.

The special value "*" picks a random certificate in the certificate store.

The certificate subject is a comma-separated list of distinguished name fields and values. For instance, "CN=www.server.com, OU=test, C=US, E=support@nsoftware.com". Common fields and their meanings are as follows:


Field	Meaning
CN	Common Name. This is commonly a hostname like www.server.com.
O	Organization
OU	Organizational Unit
L	Locality
S	State
C	Country
E	Email Address

If a field value contains a comma, it must be quoted.

cert_encoded Property

The certificate (PEM/Base64 encoded).

Syntax

def get_cert_encoded() -> bytes: ...
def set_cert_encoded(value: bytes) -> None: ...

cert_encoded = property(get_cert_encoded, set_cert_encoded)

Default Value

Remarks

The certificate (PEM/Base64 encoded). This property is used to assign a specific certificate. The cert_store and cert_subject properties also may be used to specify a certificate.

When cert_encoded is set, a search is initiated in the current cert_store for the private key of the certificate. If the key is found, cert_subject is updated to reflect the full subject of the selected certificate; otherwise, cert_subject is set to an empty string.

cert_extension_count Property

The number of records in the CertExtension arrays.

Syntax

def get_cert_extension_count() -> int: ...
def set_cert_extension_count(value: int) -> None: ...

cert_extension_count = property(get_cert_extension_count, set_cert_extension_count)

Default Value

Remarks

This property controls the size of the following arrays:

cert_extension_critical
cert_extension_oid
cert_extension_value

The array indices start at 0 and end at cert_extension_count - 1.

cert_extension_critical Property

This property specifies whether or not the extension is defined as critical.

Syntax

def get_cert_extension_critical(cert_extension_index: int) -> bool: ...

Default Value

FALSE

Remarks

This property specifies whether or not the extension is defined as critical.

The cert_extension_index parameter specifies the index of the item in the array. The size of the array is controlled by the cert_extension_count property.

This property is read-only.

cert_extension_oid Property

This property contains the ASN.

Syntax

def get_cert_extension_oid(cert_extension_index: int) -> str: ...

Default Value

Remarks

This property contains the ASN.1 Object-Identifier (OID) that defines this certificate extension.

The cert_extension_index parameter specifies the index of the item in the array. The size of the array is controlled by the cert_extension_count property.

This property is read-only.

cert_extension_value Property

This property contains the raw value of the certificate extension.

Syntax

def get_cert_extension_value(cert_extension_index: int) -> bytes: ...

Default Value

Remarks

This property contains the raw value of the certificate extension. This value is encoded according to the extension's ASN.1 specification and should contain everything following the OID. The following example is provided for clarity.

The example will

Add a sequence of basicConstraints indicating the holder of this certificate may not act as a CA.
Add a sequence of cRLDistributionPoints showing where to get CRLs.

Certmgr mgr = new Certmgr();
mgr.Cert = new Certificate(CertStoreTypes.cstPFXFile, @"C:\signingcert.pfx", "password", "*");
mgr.CertExtensions.Clear();
mgr.Config("CertUsageFlags=0xA0"); //Key Encipherment and Digital Signature
mgr.Config("CertExtendedKeyUsage=1.3.6.1.5.5.7.3.1,1.3.6.1.5.5.7.3.2"); //Server and Client authentication (respectively)
mgr.Config("CertValidityTime=10000");

Netcode nc = new Netcode();
nc.Format = NetcodeFormats.fmtHex;

// Set basicConstraints to be an end-entity.
// Below is the hex-encoded value broken down.
// 30     // Tag = sequence
// 03     // Length
//   01   // Tag = boolean
//   01   // Length
//     00 // False (not a CA)

// Convert hex string to byte[]
nc.EncodedData = "3003010100";
nc.Decode();

string oid = "2.5.29.19"; // basicConstraints
byte[] value = nc.DecodedDataB;
bool critical = false;
CertExtension basicConstraints = new CertExtension(oid, value, critical);
mgr.CertExtensions.Add(basicConstraints);

// Add one point: http://www.nsoftware.com/dummy/MyCA.crl
// Below is the hex-encoded value broken down.
// 30                    // Tag = sequence
// 2F                    // Length
//   30                  // Tag = DistributionPoint
//   2D                  // Length
//     A0                // Tag = DistributionPointName
//     2B                // Length
//       A0              // Tag = GeneralNames
//       29              // Length
//         86            // Tag = GeneralName
//         27            // Length
//           687474703A2F2F7777772E6E736F6674776172652E636F6D2F64756D6D792F4D7943412E63726C // URL

// Convert hex string to byte[]
nc.EncodedData = "302F302DA02BA0298627687474703A2F2F7777772E6E736F6674776172652E636F6D2F64756D6D792F4D7943412E63726C";
nc.Decode();

oid = "2.5.29.31"; // cRLDistributionPoints
value = nc.DecodedDataB;
critical = false;
CertExtension crlDistributionPoints = new CertExtension(oid, value, critical);
mgr.CertExtensions.Add(crlDistributionPoints);

mgr.IssueCertificate("CN=www.petsbymatilda.com", 123);
Console.WriteLine(mgr.Cert.Encoded);

The cert_extension_index parameter specifies the index of the item in the array. The size of the array is controlled by the cert_extension_count property.

This property is read-only.

exported_cert Property

This is the exported certificate string.

Syntax

def get_exported_cert() -> bytes: ...

exported_cert = property(get_exported_cert, None)

Default Value

Remarks

This property holds the exported certificate if it was not exported to a file.

When calling export_certificate if the CertFile parameter is an empty string, the certificate will be exported as a string and available in this property. This allows certificate data to be exported without writing any data to disk.

When export_format is set to PFX or P7B, the EncodeExportedCert setting controls whether the value is binary or Base64 encoded.

This property is read-only.

export_format Property

This is the format to which the certificate is exported.

Syntax

def get_export_format() -> str: ...
def set_export_format(value: str) -> None: ...

export_format = property(get_export_format, set_export_format)

Default Value

"PFX"

Remarks

export_format is applicable when export_certificate is called and may be used to specify the output format. The applicability of each format depends on whether export_private_key is set. Some formats are applicable only when exporting to a private key and some values are applicable only when exporting to a public key.


ExportFormat	Applicability	Description
"PFX" or "PKCS12" (default)	Private Keys	A PFX file (PKCS12).
"PEM"	Public and Private Keys	A PEM-formatted public certificate (X509/PKCS1/PKCS8), or PEM formatted private key (PKCS1/PKCS8). When export_private_key is False the exported certificate will be a PEM formatted X509 public certificate if the certificate being exported includes X509 data. If no X509 information is present, the public key will be exported in PKCS1 public key format for RSA/DSA keys and PKCS8 public key format for ECDSA/EdDSA keys. When export_private_key is True the exported certificate will be a PEM-formatted PKCS1 private key for RSA/DSA keys and a PEM-formatted PKCS8 private key for ECDSA/EdDSA keys. For example, when export_private_key is False: -----BEGIN CERTIFICATE----- MIIBkTCB+6ADAgECAgEBMA0GCSqGSIb3DQEBBQUAMA4xDDAKBgNVBAMTAzEwMDAgFw0wNzAx ... Pg49SpQ+HcUibIpum2O0hmnySH7BPGfXD8Lu -----END CERTIFICATE----- Example when export_private_key is True: -----BEGIN RSA PRIVATE KEY----- MIICWwIBAAKBgQD5/STHUd7YkN1JyoyYnUvCf+Fyx1+ZleBJxvwDcm3yaZ98bvry ... 91y8ydb3mQ9l1hZudo2sj8tHnvEgph0r7B8hMM6Qaw== -----END RSA PRIVATE KEY-----
"PKCS1"	Public and Private Keys	A PEM-formatted PKCS1 key file. For example, when export_private_key is False: -----BEGIN RSA PUBLIC KEY----- MIGJAoGBALAyxV5assz+9v7aHbj93NYN5uGB/1z7kb2Nx4hj02QyRYbcD4htkhK4Qcq2GCsG ... MxW4+pdeN4oEZ6rbMZt01bvMwNRX2GDEyQBhAgMBAAE= -----END RSA PUBLIC KEY----- Example when export_private_key is True: -----BEGIN RSA PRIVATE KEY----- MIICWwIBAAKBgQD5/STHUd7YkN1JyoyYnUvCf+Fyx1+ZleBJxvwDcm3yaZ98bvry ... 91y8ydb3mQ9l1hZudo2sj8tHnvEgph0r7B8hMM6Qaw== -----END RSA PRIVATE KEY-----
"PKCS8"	Public and Private Keys	A PEM-formatted PKCS8 key file. Example when export_private_key is False: -----BEGIN PUBLIC KEY----- MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCxdTNtpJQbw90cq6aJEx5vRIBrAiCAB9/F ... 8UdUliXeU8UGYjVcMhGy5oPsVeBXGcPAqF2mjXdBKNnzlSlctOLnYRBS5jwRuNfTQQIDAQAB -----END PUBLIC KEY----- Example when export_private_key is True: -----BEGIN PRIVATE KEY----- MIICdQIBADANBgkqhkiG9w0BAQEFAASCAl8wggJbAgEAAoGBAPn9JMdR3tiQ3UnK ... HSvsHyEwzpBr -----END PRIVATE KEY-----
"OpenSSH"	Public and Private Keys	An OpenSSH public or private key file. For example, when export_private_key is False: ssh-rsa AAAAB3NzaC1y... Example when export_private_key is True: -----BEGIN OPENSSH PRIVATE KEY----- b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAlwAAAAdzc2gtcnNh ... AwQFBgcICQo= -----END OPENSSH PRIVATE KEY-----
"PPK"	Private Keys	A PuTTY private key file. For example, PuTTY-User-Key-File-2: ssh-rsa Encryption: none Comment: rsa-key-20180822 Public-Lines: 4 AAAAB3NzaC1yc2EAAAADAQABAAAAgQCmz5j5kWUKxfwiv6J0LQ4wN9ekpeORXVaP ... 8pSSWejQ5Q== Private-Lines: 8 AAAAgH87Sp/YcSw1dKoAZuWb0/2dKkKwMRIYEkS15caRpzAteay6WWX7l1sgBTU7 ... Oa0= Private-MAC: d53e24f44bde8d1d3844a142fbb1fa7c88ea3585
"SSH2PublicKey"	Public Keys	An SSH2 public key. For example, ---- BEGIN SSH2 PUBLIC KEY ---- AAAAB3NzaC1yc2EAAAADAQABAAAAgQD5/STHUd7YkN1JyoyYnUvCf+Fyx1+ZleBJxvwDcm3y ... 6bVPTODELil1PVWJDlfdwoLZZKY2ACFHzxBqaOlYv1rbd2JIYAuqGca2ow== ---- END SSH2 PUBLIC KEY ----
"SSH2PrivateKey"	Private Keys	An SSH2 private key. For example, ---- BEGIN SSH2 ENCRYPTED PRIVATE KEY ---- AAAAB3NzaC1yc2EAAAADAQABAAAAgQD5/STHUd7YkN1JyoyYnUvCf+Fyx1+ZleBJxvwDcm3y ... 6bVPTODELil1PVWJDlfdwoLZZKY2ACFHzxBqaOlYv1rbd2JIYAuqGca2ow== ---- END SSH2 ENCRYPTED PRIVATE KEY ----
"JWK"	Private and Public Keys	A JSON Web Key (JWK). For example, when export_private_key is False: { "kty": "EC", "crv": "P-256", "x": "M_P_uqzP43FYW-kXWlpEDlX3nPZUr1QaMllAxUnao7w", "y": "zRFhp7iCXYIoTgerQ4LjGPTujodlimrwIMk-3enj_1Q" } For example, when export_private_key is True: { "kty": "EC", "crv": "P-256", "x": "M_P_uqzP43FYW-kXWlpEDlX3nPZUr1QaMllAxUnao7w", "y": "zRFhp7iCXYIoTgerQ4LjGPTujodlimrwIMk-3enj_1Q", "d": "eFBtl-uaB9Y4b-CIav5IYX4gGRFBvpBmrMOOQ7L-euI" }
"XML"	Private and Public Keys	An XML file holding the key or X509 data. For example, when export_private_key is False: <X509Data> <X509Certificate>MIIB...D8Lu</X509Certificate> </X509Data> For example, when export_private_key is True: <RSAKeyValue> <Modulus>+f0k...tqM=</Modulus> <Exponent>AQAB</Exponent> <P>/cOnF...tGw==</P> <Q>/DD5...dGQ==</Q> <DP>d75...N0w==</DP> <DQ>Cyv...rKQ==</DQ> <InverseQ>fsB...Qaw==</InverseQ> <D>J7p...YJE=</D> </RSAKeyValue>

export_private_key Property

This controls whether to export the private key.

Syntax

def get_export_private_key() -> bool: ...
def set_export_private_key(value: bool) -> None: ...

export_private_key = property(get_export_private_key, set_export_private_key)

Default Value

TRUE

Remarks

This property controls whether the private key is exported when export_certificate is called.

If set to True (default), the private key is exported. If set to False, only the public key is exported.

check_crl Method

This method checks the Certificate Revocation List (CRL) specified by the currently loaded certificate.

Syntax

def check_crl() -> None: ...

Remarks

This method will check the CRLs specified by the currently loaded cert.

The class will first obtain the list of CRL URLs from the certificate's CRL distribution points extension. The class will then make HTTP requests to each CRL endpoint to check the validity of the certificate.

If the certificate has been revoked or any other issues are found during validation, the class fails with an error. To check whether the certificate supports the CRL extension, use the HasCRL configuration setting.

check_ocsp Method

This method uses Online Certificate Status Protocol (OCSP) to check the status of the currently loaded certificate.

Syntax

def check_ocsp() -> None: ...

Remarks

This method will use OCSP to check the validity of the currently loaded cert.

The class will first obtain the OCSP URL from the certificate's OCSP extension. The class will then locate the issuing certificate and make an HTTP request to the OCSP endpoint to check the validity of the certificate.

If the certificate has been revoked or any other issues are found during validation, the class fails with an error. To check whether the certificate supports the OCSP extension, use the HasOCSP configuration setting.

config Method

Sets or retrieves a configuration setting.

Syntax

def config(configuration_string: str) -> str: ...

Remarks

config is a generic method available in every class. It is used to set and retrieve configuration settings for the class.

These settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the class, access to these internal properties is provided through the config method.

To set a configuration setting named PROPERTY, you must call Config("PROPERTY=VALUE"), where VALUE is the value of the setting expressed as a string. For boolean values, use the strings "True", "False", "0", "1", "Yes", or "No" (case does not matter).

To read (query) the value of a configuration setting, you must call Config("PROPERTY"). The value will be returned as a string.

create_certificate Method

This method creates a new self-signed certificate in the current store.

Syntax

def create_certificate(cert_subject: str, serial_number: int) -> None: ...

Remarks

This method creates a new self-signed certificate in the current store, which contains the following:

CertSubject specifies the subject of the new certificate. A new keyset (public/private key pair) is generated and associated with the new certificate.


Field	Meaning
CN	Common Name. This is commonly a hostname like www.server.com.
O	Organization
OU	Organizational Unit
L	Locality
S	State
C	Country
E	Email Address

If a field value contains a comma, it must be quoted.

SerialNumber specifies the certificate serial number. All certificates signed by the same issuer must have different (unique) serial numbers.

The time validity of the new certificate is determined by the CertValidityTime configuration setting, and the key size by the CertKeyLength configuration setting.

In the Unix edition of the toolkit, the certificate will be created in memory. Call export_certificate to export the newly created certificate to a PEM file.

create_key Method

This method creates a new keyset associated with the provided name.

Syntax

def create_key(key_name: str) -> None: ...

Remarks

This method will create a new keyset (public/private key pair) within the Cryptographic Service Provider (CSP) used by the class. The CSP can be set using the CSP configuration setting.

Note: This functionality is only available in Windows.

delete_certificate Method

This method deletes the currently selected certificate from the store.

Syntax

def delete_certificate() -> None: ...

Remarks

This method will delete the selected certificate from the store. If the certificate cannot be deleted, an error is returned.

This functionality is currently not available when the provider is OpenSSL.

delete_key Method

This method deletes the keyset associated with the provided name.

Syntax

def delete_key(key_name: str) -> None: ...

Remarks

This method will delete the keyset (public/private key pair) associated with KeyName from the Cryptographic Service Provider (CSP). The CSP can be set using the CSP configuration setting.

Note: This functionality is only available in Windows.

export_certificate Method

This method exports the currently selected certificate.

Syntax

def export_certificate(cert_file: str, password: str) -> None: ...

Remarks

This method exports the certificate currently selected by cert_subject to the file specified by the CertFile parameter in the format specified by export_format. This method may be used effectively to convert between a variety of formats.

The Password parameter specifies a password for the private key when export_private_key is set to True. Password is not applicable when export_private_key is set to False.

If CertFile is set to an empty string, the exported certificate will not be written to disk and instead will be held as a string by the exported_cert property.


ExportFormat	Applicability	Description
"PFX" or "PKCS12" (default)	Private Keys	A PFX file (PKCS12).
"PEM"	Public and Private Keys	A PEM-formatted public certificate (X509/PKCS1/PKCS8), or PEM formatted private key (PKCS1/PKCS8). When export_private_key is False the exported certificate will be a PEM formatted X509 public certificate if the certificate being exported includes X509 data. If no X509 information is present, the public key will be exported in PKCS1 public key format for RSA/DSA keys and PKCS8 public key format for ECDSA/EdDSA keys. When export_private_key is True the exported certificate will be a PEM-formatted PKCS1 private key for RSA/DSA keys and a PEM-formatted PKCS8 private key for ECDSA/EdDSA keys. For example, when export_private_key is False: -----BEGIN CERTIFICATE----- MIIBkTCB+6ADAgECAgEBMA0GCSqGSIb3DQEBBQUAMA4xDDAKBgNVBAMTAzEwMDAgFw0wNzAx ... Pg49SpQ+HcUibIpum2O0hmnySH7BPGfXD8Lu -----END CERTIFICATE----- Example when export_private_key is True: -----BEGIN RSA PRIVATE KEY----- MIICWwIBAAKBgQD5/STHUd7YkN1JyoyYnUvCf+Fyx1+ZleBJxvwDcm3yaZ98bvry ... 91y8ydb3mQ9l1hZudo2sj8tHnvEgph0r7B8hMM6Qaw== -----END RSA PRIVATE KEY-----
"PKCS1"	Public and Private Keys	A PEM-formatted PKCS1 key file. For example, when export_private_key is False: -----BEGIN RSA PUBLIC KEY----- MIGJAoGBALAyxV5assz+9v7aHbj93NYN5uGB/1z7kb2Nx4hj02QyRYbcD4htkhK4Qcq2GCsG ... MxW4+pdeN4oEZ6rbMZt01bvMwNRX2GDEyQBhAgMBAAE= -----END RSA PUBLIC KEY----- Example when export_private_key is True: -----BEGIN RSA PRIVATE KEY----- MIICWwIBAAKBgQD5/STHUd7YkN1JyoyYnUvCf+Fyx1+ZleBJxvwDcm3yaZ98bvry ... 91y8ydb3mQ9l1hZudo2sj8tHnvEgph0r7B8hMM6Qaw== -----END RSA PRIVATE KEY-----
"PKCS8"	Public and Private Keys	A PEM-formatted PKCS8 key file. Example when export_private_key is False: -----BEGIN PUBLIC KEY----- MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQCxdTNtpJQbw90cq6aJEx5vRIBrAiCAB9/F ... 8UdUliXeU8UGYjVcMhGy5oPsVeBXGcPAqF2mjXdBKNnzlSlctOLnYRBS5jwRuNfTQQIDAQAB -----END PUBLIC KEY----- Example when export_private_key is True: -----BEGIN PRIVATE KEY----- MIICdQIBADANBgkqhkiG9w0BAQEFAASCAl8wggJbAgEAAoGBAPn9JMdR3tiQ3UnK ... HSvsHyEwzpBr -----END PRIVATE KEY-----
"OpenSSH"	Public and Private Keys	An OpenSSH public or private key file. For example, when export_private_key is False: ssh-rsa AAAAB3NzaC1y... Example when export_private_key is True: -----BEGIN OPENSSH PRIVATE KEY----- b3BlbnNzaC1rZXktdjEAAAAABG5vbmUAAAAEbm9uZQAAAAAAAAABAAAAlwAAAAdzc2gtcnNh ... AwQFBgcICQo= -----END OPENSSH PRIVATE KEY-----
"PPK"	Private Keys	A PuTTY private key file. For example, PuTTY-User-Key-File-2: ssh-rsa Encryption: none Comment: rsa-key-20180822 Public-Lines: 4 AAAAB3NzaC1yc2EAAAADAQABAAAAgQCmz5j5kWUKxfwiv6J0LQ4wN9ekpeORXVaP ... 8pSSWejQ5Q== Private-Lines: 8 AAAAgH87Sp/YcSw1dKoAZuWb0/2dKkKwMRIYEkS15caRpzAteay6WWX7l1sgBTU7 ... Oa0= Private-MAC: d53e24f44bde8d1d3844a142fbb1fa7c88ea3585
"SSH2PublicKey"	Public Keys	An SSH2 public key. For example, ---- BEGIN SSH2 PUBLIC KEY ---- AAAAB3NzaC1yc2EAAAADAQABAAAAgQD5/STHUd7YkN1JyoyYnUvCf+Fyx1+ZleBJxvwDcm3y ... 6bVPTODELil1PVWJDlfdwoLZZKY2ACFHzxBqaOlYv1rbd2JIYAuqGca2ow== ---- END SSH2 PUBLIC KEY ----
"SSH2PrivateKey"	Private Keys	An SSH2 private key. For example, ---- BEGIN SSH2 ENCRYPTED PRIVATE KEY ---- AAAAB3NzaC1yc2EAAAADAQABAAAAgQD5/STHUd7YkN1JyoyYnUvCf+Fyx1+ZleBJxvwDcm3y ... 6bVPTODELil1PVWJDlfdwoLZZKY2ACFHzxBqaOlYv1rbd2JIYAuqGca2ow== ---- END SSH2 ENCRYPTED PRIVATE KEY ----
"JWK"	Private and Public Keys	A JSON Web Key (JWK). For example, when export_private_key is False: { "kty": "EC", "crv": "P-256", "x": "M_P_uqzP43FYW-kXWlpEDlX3nPZUr1QaMllAxUnao7w", "y": "zRFhp7iCXYIoTgerQ4LjGPTujodlimrwIMk-3enj_1Q" } For example, when export_private_key is True: { "kty": "EC", "crv": "P-256", "x": "M_P_uqzP43FYW-kXWlpEDlX3nPZUr1QaMllAxUnao7w", "y": "zRFhp7iCXYIoTgerQ4LjGPTujodlimrwIMk-3enj_1Q", "d": "eFBtl-uaB9Y4b-CIav5IYX4gGRFBvpBmrMOOQ7L-euI" }
"XML"	Private and Public Keys	An XML file holding the key or X509 data. For example, when export_private_key is False: <X509Data> <X509Certificate>MIIB...D8Lu</X509Certificate> </X509Data> For example, when export_private_key is True: <RSAKeyValue> <Modulus>+f0k...tqM=</Modulus> <Exponent>AQAB</Exponent> <P>/cOnF...tGw==</P> <Q>/DD5...dGQ==</Q> <DP>d75...N0w==</DP> <DQ>Cyv...rKQ==</DQ> <InverseQ>fsB...Qaw==</InverseQ> <D>J7p...YJE=</D> </RSAKeyValue>

ExportCertificate Example:

//Convert from PFX to PPK certmgr.SetCertStoreType(CST_PFXFILE); certmgr.SetCertStore("..\\test.pfx", strlen("..\\test.pfx")); certmgr.SetCertStorePassword("password"); certmgr.SetCertSubject("*"); certmgr.SetExportPrivateKey(true); certmgr.SetExportFormat("PPK"); int ret_code = certmgr.ExportCertificate("..\\test.ppk", "newpassword"); //Export public certificate from PFX certmgr.SetCertStoreType(CST_PFXFILE); certmgr.SetCertStore("..\\test.pfx", strlen("..\\test.pfx")); certmgr.SetCertStorePassword("password"); certmgr.SetCertSubject("*"); certmgr.SetExportPrivateKey(false); certmgr.SetExportFormat("PEM"); ret_code = certmgr.ExportCertificate("..\\exported.cer", ""); //Convert .cer file to SSH2 Public Key certmgr.SetCertStoreType(CST_PUBLIC_KEY_FILE); certmgr.SetCertStore("..\\exported.cer", strlen("..\\exported.cer")); certmgr.SetCertSubject("*"); certmgr.SetExportPrivateKey(false); certmgr.SetExportFormat("SSH2PublicKey"); ret_code = certmgr.ExportCertificate("C:\\ssh2.pub", "");

generate_csr Method

This method generates a new Certificate Signing Request (CSR) to be sent to a signing authority.

Syntax

def generate_csr(cert_subject: str, key_name: str) -> str: ...

Remarks

This method will generate a new CSR to be sent to the signing authority. CertSubject specifies the subject of the CSR. KeyName specifies the name of the keyset (public/private key pair) to be used. If the keyset does not already exist in the Cryptographic Service Provider (CSP), the class will automatically generate one. To set the CSP, use the CSP configuration setting.

Note: Remember the name of the keyset that is used when creating a CSR. The keyset must be re-associated with the certificate after the trust authority has signed the CSR.


Field	Meaning
CN	Common Name. This is commonly a hostname like www.server.com.
O	Organization
OU	Organizational Unit
L	Locality
S	State
C	Country
E	Email Address

If a field value contains a comma, it must be quoted.

Note: This functionality is only available in Windows.

import_certificate Method

This method imports a certificate from a file into the current certificate store.

Syntax

def import_certificate(cert_file: str, password: str, subject: str) -> None: ...

Remarks

This method will import a certificate from a file into the current certificate store.

On Windows platforms, certificates may be imported only to the Windows certificate store. To load a certificate without importing it to a Windows store, set cert.

Certificate files with or without a private key may be imported. If the file specified by CertFile contains a private key, the private key will be imported along with the public certificate. If the file specified by CertFile contains only a public certificate, only the public certificate will be imported.

The Password parameter specifies the certificate password (if any). When importing a public certificate, set Password to an empty string.

The format of the certificate file being imported must contain valid X509 data to be imported. Not all certificate file formats include X509 data, such as PPK or PKCS8 private keys. If the CertFile is of a format that cannot be imported, the class fails with an error.

Note: On Linux-based operating systems, this method loads the specified certificate without importing into any system location.

Subject is optional. If empty, the first certificate in the store is loaded instead of the matching certificate.

ImportCertificate Example

//Import a PFX certmgr.ImportCertificate("..\\test.pfx", "password", "*"); //Import a public certificate (CER) certmgr.ImportCertificate("..\\test.cer", "", "*");

import_signed_csr Method

This method imports a signed Certificate Signing Request (CSR).

Syntax

def import_signed_csr(signed_csr: bytes, key_name: str) -> None: ...

Remarks

This method will import a signed CSR. SignedCSR specifies a certificate that has been signed by a trusted authority. KeyName is the name of the keyset (public/private key pair) that was used to create the original CSR.

Note: This functionality is only available in Windows.

issue_certificate Method

This creates a new certificate in the current store and is signed by the selected certificate.

Syntax

def issue_certificate(cert_subject: str, serial_number: int) -> None: ...

Remarks

This method creates a new certificate in the current store and is signed by the selected certificate. CertSubject specifies the subject of the new certificate. A new keyset (public/private key pair) is generated and associated with the new certificate.


Field	Meaning
CN	Common Name. This is commonly a hostname like www.server.com.
O	Organization
OU	Organizational Unit
L	Locality
S	State
C	Country
E	Email Address

If a field value contains a comma, it must be quoted.

SerialNumber specifies the certificate serial number. All certificates signed by the same issuer must have different (unique) serial numbers.

The current certificate selected by the class will be used as the issuing certificate.

If no certificate has been selected in the current cert_store before calling this method, or if the selected certificate does not have an associated private key, the method fails with an error.

The time validity of the new certificate is determined by the CertValidityTime configuration setting, and the key size by the CertKeyLength configuration setting.

Note: This functionality is only available in Windows.

list_certificate_stores Method

This lists the certificate stores.

Syntax

def list_certificate_stores() -> str: ...

Remarks

This method lists the system certificate stores for the current user account. The results are provided through the on_store_list event.

The same information is also returned upon method completion as a set of lines and is given one per certificate store name.

Note: This functionality is only available in Windows.

list_keys Method

This lists the keysets in a Cryptographic Service Provider (CSP).

Syntax

def list_keys() -> str: ...

Remarks

This method lists the keys (public/private key pairs) in a CSP. The results are provided through the on_key_list event.

The same information is also returned upon method completion as a set of lines and is given one per key, with each line containing the following information separated by Tab characters: KeyContainer, KeyType, AlgId, and KeyLen.

Note: This functionality is only available in Windows.

list_machine_stores Method

This lists the machine certificate stores.

Syntax

def list_machine_stores() -> str: ...

Remarks

This method behaves the same as the list_certificate_stores method, but it lists the certificate stores in the machine account (under HKEY_LOCAL_MACHINE in the registry).

Note: This functionality is only available in Windows.

list_store_certificates Method

This lists the certificates in a store.

Syntax

def list_store_certificates() -> str: ...

Remarks

This method lists the certificates in a store. The results are provided through the on_cert_list event.

The same information is also returned upon method completion as a set of lines and is given one per certificate, with each line containing the following information separated by Tab characters: CertSubject, CertIssuer, CertSerialNumber, and HasPrivateKey (as "1" or "0").

In the Unix edition of the toolkit, this is available only when a PFX file is loaded.

read_certificate Method

This loads a certificate from a file.

Syntax

def read_certificate(file_name: str) -> None: ...

Remarks

Note: This method is present for backward compatibility. It is recommended to specify the cert property to load a certificate.

This method will load a certificate from a file. The file contents can be encoded in Base64 PEM or ASN DER format.

read_csr Method

This reads a Certificate Signing Request (CSR).

Syntax

def read_csr(csr: str) -> str: ...

Remarks

This method reads a CSR and returns a string holding information about the CSR. The cert property is also populated with relevant information about the CSR, including the following:

cert_subject
cert_public_key_length
cert_public_key_algorithm

The method accepts the CSR parameter as either a Base64-encoded string PEM or a path to a file.

The return value will be in the following format:

Certificate Request:
    Data:
        Version: 0 (0x0)
        Subject: C=AU, S=Some-State, O=Internet Widgits Pty Ltd
        Subject Public Key Info:
            Public Key Algorithm: X957_DSA (1.2.840.10040.4.1)
                Public-Key: (0 bit)
                pub:
                    02:82:01:00:66:70:68:60:08:63:bc:ff:26:62:77:74:
                    f6:b8:a8:11:f4:2c:5d:a1:79:b9:8e:ea:30:2e:6b:5a:
                    1b:35:39:24:91:1b:c1:ba:49:a0:c5:af:47:6e:73:0a:
                    f3:f6:6b:99:94:21:32:e5:24:b3:a8:a4:85:93:84:26:
                    e8:5c:4a:5d:2e:5e:82:df:ab:cc:e5:8d:51:ac:45:c2:
                    09:e5:21:f1:ce:c9:a0:3d:1d:7a:ab:fa:dd:d6:56:a8:
                    b2:61:26:8e:27:83:36:8a:0c:9b:cb:61:1a:b5:63:95:
                    ef:a5:bd:f2:8e:a7:fc:ca:d2:81:87:a5:6a:88:03:2e:
                    ca:fb:24:fa:d0:df:8a:2e:a9:e0:31:fc:57:e1:02:ca:
                    ee:99:01:d2:a5:33:34:47:92:b3:8b:31:f5:f1:1d:bf:
                    eb:07:70:71:6f:d1:c0:4c:0a:9d:99:af:ae:7e:bc:85:
                    e4:d2:22:1c:38:4b:60:e8:31:4d:f7:10:06:10:03:55:
                    f5:af:ba:a9:53:a5:9b:ae:d1:f8:38:34:80:e4:1c:9e:
                    06:8d:cc:39:3e:b2:e9:32:82:85:d2:d0:ed:b2:8e:d6:
                    6f:96:87:08:62:cc:9e:d3:75:76:b5:85:31:c6:a4:94:
                    59:15:ec:de:70:5a:34:2c:ff:27:ad:fc:14:01:e6:39:
                    8a:c9:91:3e:
                P:
                    00:dc:a6:15:cc:1a:e1:44:16:dc:a8:68:a4:18:9a:ab:
                    bf:5d:bf:b7:d1:5e:38:5f:b6:0e:21:ef:df:83:6a:5c:
                    31:f0:c9:07:3c:13:2c:9c:32:d0:89:76:2b:80:ad:3f:
                    6b:5d:5a:1d:69:31:f5:80:d5:65:ba:b5:28:a3:38:ba:
                    93:25:c4:fc:93:99:a2:00:5d:5e:c6:1b:f2:63:f0:24:
                    72:52:b4:49:97:19:93:fe:47:bf:9e:2e:54:d1:8a:b9:
                    09:8d:54:e8:de:31:e8:0d:21:b0:81:b2:f5:bd:38:3c:
                    15:02:d6:c1:aa:ab:17:8f:a8:f8:1f:1b:34:09:85:75:
                    3d:6e:28:2d:72:af:47:fd:ae:c4:f3:78:53:d7:07:a7:
                    c4:72:35:2d:6b:9e:42:08:1d:46:c9:38:d2:53:27:63:
                    a2:1d:be:11:9f:dd:9d:5b:e4:ad:fa:71:30:61:84:60:
                    a0:bf:bd:3a:51:b4:b5:1e:48:26:36:66:9e:52:f9:70:
                    35:e3:38:53:2e:90:ed:9f:0f:9d:67:b9:57:dd:53:e6:
                    ca:92:58:40:6d:15:e4:ae:2e:16:74:33:ed:48:90:15:
                    30:b7:fd:47:58:91:d5:c5:e2:3b:1f:1d:3b:a7:59:40:
                    2e:22:1a:9a:89:1b:31:a2:6f:cf:4c:a1:3b:93:ed:8a:
                    11:
                Q:
                    00:e3:ae:12:04:80:be:0f:d4:78:ef:02:27:26:b3:64:
                    6d:2b:e0:c9:da:15:00:a9:9c:45:6d:e6:44:ef:dd:75:
                    71:
                G:
                    18:fb:52:54:fe:bc:54:9e:17:a9:51:a1:e0:b9:6a:ab:
                    48:0e:06:60:f3:cd:fd:3c:14:9a:a0:35:d1:33:d4:d8:
                    b4:ee:ce:0b:5c:c7:60:24:e8:39:17:d8:75:13:90:44:
                    f5:f6:ef:50:cd:b4:af:66:90:f7:00:13:66:2f:ea:e2:
                    29:39:cd:a4:16:20:df:00:fd:53:6d:02:8b:4f:09:a5:
                    7f:72:7c:28:c8:70:2a:85:49:a1:65:36:66:91:52:e7:
                    14:b1:b8:b9:79:39:a6:d5:f8:b9:cd:ce:af:2d:88:66:
                    b5:d9:bb:9e:60:c8:9e:82:b4:3f:ff:23:37:4b:20:e4:
                    88:b0:d4:6e:b7:b5:8c:e6:98:cb:88:c2:6e:10:46:af:
                    44:0f:53:22:c2:fb:80:d3:30:05:c0:a6:4b:f8:e0:08:
                    3e:69:b6:17:b1:7d:2f:8f:07:66:9c:e5:94:3f:fc:ea:
                    f9:6c:9d:49:7c:91:f3:5a:92:b4:a7:b9:dc:42:7d:1a:
                    b0:99:ad:6d:b8:d9:03:6e:40:13:1c:3e:e2:80:f5:a1:
                    da:75:49:29:be:36:ad:78:74:46:0d:00:e9:6d:bf:8c:
                    65:50:4c:ad:ba:a7:1c:ac:5a:13:9e:d6:6a:3a:9f:cb:
                    1f:7d:5d:e2:3e:79:22:c2:56:c8:70:74:53:9a:4e:6c:
        Attributes:

    Signature Algorithm: 2.16.840.1.101.3.4.3.2 (2.16.840.1.101.3.4.3.2)
        00:30:44:02:20:42:00:86:14:2d:70:71:1b:77:b4:f0:
        ae:32:76:7b:1d:71:98:a2:70:69:4c:a9:e6:c1:9b:ad:
        df:af:a3:30:10:02:20:12:8f:ed:0b:1e:d5:f6:84:24:
        a9:fe:bc:45:75:eb:02:62:13:07:2c:ae:3f:ce:f3:da:
        95:25:47:97:bf:a6:9e:

reset Method

This resets all certificate properties to their default values.

Syntax

def reset() -> None: ...

Remarks

This method will reset all certificate properties to their default values. If a certificate and a private key are selected or a certificate store is opened, both are released upon calling this method.

save_certificate Method

This method saves the currently selected public certificate to a file.

Syntax

def save_certificate(file_name: str) -> None: ...

Remarks

Note: This method is present for backward compatibility. It is recommended to use export_certificate to export both public and private certificates and keys.

This method saves the public certificate of the currently selected certificate in Base64 PEM format to the location specified by the FileName parameter.

If the destination file exists, it is overwritten.

show_certificate_chain Method

This shows the certificate chain.

Syntax

def show_certificate_chain() -> str: ...

Remarks

This method shows the certificate chain for the certificate. The results are provided through the on_cert_chain event.

Note: This functionality is only available in Windows.

sign_csr Method

This creates a signed certificate from a Certificate Signing Request (CSR).

Syntax

def sign_csr(csr: bytes, serial_number: int) -> str: ...

Remarks

This method will create a signed certificate from a CSR. CSR specifies the CSR to be signed.

SerialNumber specifies the certificate serial number. All certificates signed by the same issuer must have different (unique) serial numbers.

The time validity of the new certificate is determined by the CertValidityTime configuration setting, and the key size is determined by the CertKeyLength configuration setting.

Note: This functionality is only available in Windows.

on_cert_chain Event

This event shows the certificate chain for the certificate (see the ShowCertificateChain method).

Syntax

class CertMgrCertChainEventParams(object):
  @property
  def cert_encoded() -> bytes: ...

  @property
  def cert_subject() -> str: ...

  @property
  def cert_issuer() -> str: ...

  @property
  def cert_serial_number() -> str: ...

  @property
  def trust_status() -> int: ...

  @property
  def trust_info() -> int: ...

# In class CertMgr:
@property
def on_cert_chain() -> Callable[[CertMgrCertChainEventParams], None]: ...
@on_cert_chain.setter
def on_cert_chain(event_hook: Callable[[CertMgrCertChainEventParams], None]) -> None: ...

Remarks

This event is fired for every certificate in the certificate chain of the certificate assigned to the class.

The TrustStatus parameter contains information about the trust status of the entire certificate chain. A value of 0 signifies that the security subsystem has verified the certificate. Other values are combinations of one or more of the following flags:


0x00000001	This certificate or one of the certificates in the certificate chain is not time valid.
0x00000002	Certificates in the chain are not properly time nested.
0x00000004	Trust for this certificate or one of the certificates in the certificate chain has been revoked.
0x00000008	This certificate or one of the certificates in the certificate chain does not have a valid signature.
0x00000010	The certificate or the certificate chain is not valid for its proposed usage.
0x00000020	The certificate or certificate chain is based on an untrusted root.
0x00000040	The revocation status of the certificate or one of the certificates in the certificate chain is unknown.
0x00000080	One of the certificates in the chain was issued by a certification authority that the original certificate had certified.
0x00010000	The certificate chain is not complete.
0x00020000	A certificate trust list (CTL) used to create this chain was not time valid.
0x00040000	A CTL used to create this chain did not have a valid signature.
0x00080000	A CTL used to create this chain is not valid for this usage.

The TrustInfo parameter contains additional information about the status of the entire certificate chain. It is a combination of one or more of the following flags:


0x00000001	An exact match issuer certificate has been found for this certificate.
0x00000002	A key match issuer certificate has been found for this certificate.
0x00000004	A name match issuer certificate has been found for this certificate.
0x00000008	This certificate is self-signed.
0x00010000	The certificate chain created is a complex chain.

The CertSubject and CertIssuer parameters contain the distinguished names of the certificate owner and issuer, respectively.

on_cert_list Event

This event lists the certificates in a store (see the ListStoreCertificates method).

Syntax

class CertMgrCertListEventParams(object):
  @property
  def cert_encoded() -> bytes: ...

  @property
  def cert_subject() -> str: ...

  @property
  def cert_issuer() -> str: ...

  @property
  def cert_serial_number() -> str: ...

  @property
  def has_private_key() -> bool: ...

# In class CertMgr:
@property
def on_cert_list() -> Callable[[CertMgrCertListEventParams], None]: ...
@on_cert_list.setter
def on_cert_list(event_hook: Callable[[CertMgrCertListEventParams], None]) -> None: ...

Remarks

The CertSubject and CertIssuer parameters contain distinguished names of the certificate owner and issuer, respectively. The HasPrivateKey flag shows whether the private key for the certificate is available in the system.

The on_store_list event and the list_certificate_stores and list_machine_stores methods are used to list the certificate stores in the system.

on_error Event

Fired when information is available about errors during data delivery.

Syntax

class CertMgrErrorEventParams(object):
  @property
  def error_code() -> int: ...

  @property
  def description() -> str: ...

# In class CertMgr:
@property
def on_error() -> Callable[[CertMgrErrorEventParams], None]: ...
@on_error.setter
def on_error(event_hook: Callable[[CertMgrErrorEventParams], None]) -> None: ...

Remarks

The on_error event is fired in case of exceptional conditions during message processing. Normally the class fails with an error.

The ErrorCode parameter contains an error code, and the Description parameter contains a textual description of the error. For a list of valid error codes and their descriptions, please refer to the Error Codes section.

on_key_list Event

This lists the keysets in a Cryptographic Service Provider (CSP); see the ListKeys method.

Syntax

class CertMgrKeyListEventParams(object):
  @property
  def key_container() -> str: ...

  @property
  def key_type() -> int: ...

  @property
  def alg_id() -> str: ...

  @property
  def key_len() -> int: ...

# In class CertMgr:
@property
def on_key_list() -> Callable[[CertMgrKeyListEventParams], None]: ...
@on_key_list.setter
def on_key_list(event_hook: Callable[[CertMgrKeyListEventParams], None]) -> None: ...

Remarks

The KeyContainer parameter is the name used to identify the keyset (public/private key pair) when it was first created.

KeyType shows the key type: 1 for key exchange (encryption) keys, and 2 for digital signature keys.

KeyLen shows the length of the public key (in bits).

on_log Event

This event fires once for each log message.

Syntax

class CertMgrLogEventParams(object):
  @property
  def log_level() -> int: ...

  @property
  def message() -> str: ...

  @property
  def log_type() -> str: ...

# In class CertMgr:
@property
def on_log() -> Callable[[CertMgrLogEventParams], None]: ...
@on_log.setter
def on_log(event_hook: Callable[[CertMgrLogEventParams], None]) -> None: ...

Remarks

This event fires once for each log message generated by the class. The verbosity is controlled by the LogLevel setting.

LogLevel indicates the level of message. Possible values are as follows:


0 (None)	No events are logged.
1 (Info - default)	Informational events are logged.
2 (Verbose)	Detailed data are logged.
3 (Debug)	Debug data are logged.

Message is the log entry.

LogType identifies the type of log entry.

on_store_list Event

This lists the system certificate stores (see the ListCertificateStores and ListMachineStores methods).

Syntax

class CertMgrStoreListEventParams(object):
  @property
  def cert_store() -> str: ...

# In class CertMgr:
@property
def on_store_list() -> Callable[[CertMgrStoreListEventParams], None]: ...
@on_store_list.setter
def on_store_list(event_hook: Callable[[CertMgrStoreListEventParams], None]) -> None: ...

Remarks

The CertStore parameter contains the name of the certificate store being listed.

The on_cert_list event and the list_store_certificates method are used to list the certificates in the store.

CertMgr Config Settings

The class accepts one or more of the following configuration settings. Configuration settings are similar in functionality to properties, but they are rarely used. In order to avoid "polluting" the property namespace of the class, access to these internal properties is provided through the config method.

CertMgr Config Settings

BasicConstraints: The hex-encoded value of the certificate's Basic Constraints extension.

This setting specifies the value of this certificate's Basic Constraints extension (as a hex-encoded string). This value is encoded according to the extension's ASN.1 specification. Setting this configuration setting is an alternative to creating a CertExtension object, setting its field, and adding the object to cert_extensions. CertMgr certmgr = new CertMgr(); certmgr.Cert = new Certificate(); certmgr.CertStoreType = CertStoreTypes.cstUser; certmgr.CertStore = "MY"; certmgr.Config("BasicConstraints=30030101FF"); certmgr.CreateCertificate(mySubject, 23);

CertComment: A comment to include in a saved certificate.

This settings specifies the certificate comment when calling export_certificate. This setting is applicable only when export_format is set to one of the following values:

OpenSSHKey (export_private_key must be False)
SSH2PublicKey
PPK

When export_format is set to SSH2PublicKey, the value of this setting must be the full header (e.g., Comment: My Comment).

CertCustomExtensionCount: The number of records in the CertCustomExtension arrays.

This property controls the size of the following arrays:

CertCustomExtensionCritical[i];
CertCustomExtensionOID[i];
CertCustomExtensionValue[i];

The array indices start at 0 and end at CertExtensionCount-1.

CertCustomExtensionCritical[i]: Whether or not the extension is defined as critical.

Whether or not the certificate extension at index "i" is defined as critical.

Valid array indices are from 0 to CertCustomExtensionCount - 1.

CertCustomExtensionOID[i]: The ASN of the extension at index 'i'.

The ASN.1 object identifier (OID) that defines the certificate extension at index 'i'.

Valid array indices are from 0 to CertCustomExtensionCount - 1.

CertCustomExtensionValue[i]: The raw value of the extension at index 'i'.

The raw value of this certificate extension (as a byte string). This value is encoded according to the extension's ASN.1 specification.

Valid array indices are from 0 to CertCustomExtensionCount - 1.

CertExtendedKeyUsage: The extended key usage of the certificate.

This setting specifies the extended key usage flags of the certificate created by calling create_certificate or issue_certificate. If specified, the value is a comma-separated list of OIDs. Common OIDs are as follows:


1.3.6.1.5.5.7.3.1	Server Authentication
1.3.6.1.5.5.7.3.2	Client Authentication
1.3.6.1.5.5.7.3.3	Code Signing
1.3.6.1.5.5.7.3.4	Secure Email
1.3.6.1.5.5.7.3.8	Time Stamping
1.3.6.1.5.5.7.3.9	OCSP Signing

For instance, the following value specified the extended key usage for Server Authentication, Client Authentication, and Code Signing: 1.3.6.1.5.5.7.3.1, 1.3.6.1.5.5.7.3.2, and 1.3.6.1.5.5.7.3.3

CertKeyLength: The public key length for created certificates and keys.

When create_certificate creates a new certificate and associated key, or when create_key creates a key, this setting determines the length of the new public key (in bits). The default value is 2048.

CertKeyType: The types of keys created for new certificates.

When create_certificate creates a new certificate and associated key, or when create_key creates a key, this setting determines the type of key generated: 1 for key exchange (encryption) keys, and 2 for digital signature keys. The default value is 1.

CertPublicKeyAlgorithm: The public key algorithm used when a certificate is created.

When create_certificate creates a new certificate and associated key, this setting determines the public key algorithm of the generated keys. Following are the valid values:

RSA (default)
DSA
ECDSA_P256
ECDSA_P384
ECDSA_P521
ECDSA_Secp256k1
ECDSA_Secp224k1
ECDSA_Secp192k1
ECDSA_Secp160k1
ECDSA_BRAINPOOLP160R1
ECDSA_BRAINPOOLP192R1
ECDSA_BRAINPOOLP224R1
ECDSA_BRAINPOOLP256R1
ECDSA_BRAINPOOLP320R1
ECDSA_BRAINPOOLP384R1
ECDSA_BRAINPOOLP512R1
ECDSA_BRAINPOOLP160T1
ECDSA_BRAINPOOLP192T1
ECDSA_BRAINPOOLP224T1
ECDSA_BRAINPOOLP256T1
ECDSA_BRAINPOOLP320T1
ECDSA_BRAINPOOLP384T1
ECDSA_BRAINPOOLP512T1
Ed25519
Ed448

CertSignatureAlgorithm: The signature algorithm used when creating certificates.

When create_certificate or issue_certificate creates a new certificate, the signature algorithm used is specified by this setting. Following are the possible values:

MD2
MD5
SHA1
SHA256 (default)
SHA384
SHA512

CertSubjectAltNames: Subject Alternative Names for creating or issuing certificates.

This allows the Subject Alternative Names extension to be specified when creating or issuing a certificate via create_certificate or issue_certificate. This setting only supports email, DNS, URI, and IPv4 addresses. Separate alternative names should be separated by commas. For example:

string altNames = "email:copy,dns:domain.com,dns.1:other.domain.com,uri:http://www.domain.com,ip:192.168.1.102"

CertThumbprint: The thumbprint of the certificate to be loaded.

This setting specifies the thumbprint of the certificate to be loaded. If specified, the supplied thumbprint will be used when identifying the certificate that should be loaded.

This configuration setting is not supported in the C# and Java editions, which already support loading by thumbprint via the Certificate type constructors. This setting is only supported on Windows operating systems. CertMgr cert; cert.Config("CertThumbprint=967adafd7add8f72ee4894ede866d6745970f82f"); cert.SetCertStore("MY", 2); cert.SetCertStoreType(CST_USER); cert.SetCertStorePassword(""); cert.SetCertSubject("TestCert");

CertUsageFlags: Sets the flags indicating the usage of the created certificate.

This setting specifies the usage flags of the certificate created by calling create_certificate or issue_certificate. If specified, the value is the binary OR of one or more of the supported values. For instance, a value of 12 or 0xC is the binary OR of the Certificate Signing and Key Agreement usage flags. The following flags are supported:


0x80	Digital Signature
0x40	Non-Repudiation
0x20	Key Encipherment
0x10	Data Encipherment
0x08	Key Agreement
0x04	Certificate Signing
0x02	CRL Signing
0x01	Encipher Only

CertValidityOffset: The number of days until the certificate becomes valid.

This configuration setting can be used to change when a newly created certificate becomes valid. By default, the certificate is valid as soon as it is created. Set CertValidityOffset to the number of days that this starting period should be offset from the current day. This setting also accepts negative values for back-dating the validity of a certificate. The default value is 0.

CertValidityTime: The validity period for the certificate.

This configuration setting determines the duration in days that a newly created certificate remains valid. The certificate becomes valid as soon as it is created, unless CertValidityOffset is set. The duration is not changed if CertValidityOffset is set; the certificate will still expire CertValidityTime days after the validity period begins. The default value is 365 days.

CreatedKey: The PKCS8 formatted private and public key pair created after calling CreateKey.

This setting returns the PKCS8 formatted private and public key pair of the key created when create_key is called. This is useful in scenarios where exporting the key for use in another environment is required.

CSP: The Cryptographic Service Provider.

The name of the Cryptographic Service Provider used to provide access to certificate signing operations.

CSRIgnoredExtensions: Extensions to be ignorned when signing a CSR.

Set this configuration setting to a comma separated list of OID's of any extensions already present in the CSR that should be ignored when the CSR is signed.

For example if the SAN's in a CSR should be ignored the below code would work: CertMgr1->Config("CSRIgnoredExtensions=2.5.29.17");

CSRKey: The PKCS8 formatted private key to use when generating a CSR.

This setting optionally specifies a PKCS8 formatted private key to use when calling generate_csr. When set, the keyName parameter of generate_csr is ignored and the key specified by this setting is used instead.

EncodeExportedCert: Whether the certificate being exported to a string is encoded.

This setting controls whether the certificate exported as a string when export_certificate is called is encoded. If export_format is set to PFX or P7B before calling export_certificate the exported certificate may be binary (EncodeExportedCert is False), or base64 encoded (EncodeExportedCert is True) to allow easier handling of the certificate data.

The default value is False.

HasCRL: Whether the certificate supports the CRL extension.

This setting returns true if the currently loaded cert supports the CRL extension.

HasOCSP: Whether the certificate supports the OCSP extension.

This setting returns true if the currently loaded cert supports the OCSP extension.

ImportCertAction: Specified the action to take if a matching certificate or a link to a matching certificate already exists.

When calling import_certificate if a matching certificate or a link to a matching certificate already exists in the Windows certificate store this setting governs what action will be taken. Possible values are:


1	CERT_STORE_ADD_NEW - Imports a certificate only if no existing certificate is present.
2	CERT_STORE_ADD_USE_EXISTING - If an existing certificate is found, it is not replaced.
3 (default)	CERT_STORE_ADD_REPLACE_EXISTING - If an existing certificate is found it is replaced.
4	CERT_STORE_ADD_ALWAYS - No checks are performed and a new certificate is always added to the store. This can result in duplicates.
5	CERT_STORE_ADD_REPLACE_EXISTING_INHERIT_PROPERTIES - If an existing certificate is found it is replaced, and the new certificate inherits properties from the certificate it replaces.
6	CERT_STORE_ADD_NEWER - Imports a certificate only if the certificate is newer than an existing matching certificate.
7	CERT_STORE_ADD_NEWER_INHERIT_PROPERTIES - Imports a certificate only if the certificate is newer than an existing matching certificate, and inherits the properties of old certificate it replaces.

ImportCertStoreType: The type of certificate store being specified for import.

When calling import_certificate, this setting controls the type of the certificate being specified in the first parameter.

This config can take one of the following values:


2 (cstPFXFile)	The certificate store is the name of a PFX (PKCS12) file containing certificates.
3 (cstPFXBlob)	The certificate store is a string (binary or base64-encoded) representing a certificate store in PFX (PKCS12) format.
6 (cstPEMKeyFile)	The certificate store is the name of a PEM-encoded file that contains a private key and an optional certificate.
7 (cstPEMKeyBlob)	The certificate store is a string (binary or base64-encoded) that contains a private key and an optional certificate.
8 (cstPublicKeyFile)	The certificate store is the name of a file that contains a PEM- or DER-encoded public key certificate.
9 (cstPublicKeyBlob)	The certificate store is a string (binary or base64-encoded) that contains a PEM- or DER-encoded public key certificate.
10 (cstSSHPublicKeyBlob)	The certificate store is a string (binary or base64-encoded) that contains an SSH-style public key.
13 (cstSSHPublicKeyFile)	The certificate store is the name of a file that contains an SSH-style public key.
99 (cstAuto - default)	The certificate type is automatically determined from the input.

Note that this functionality is currently for Windows platforms only.

JWKAlgorithm: The JWK algorithm.

This setting specifies the JWK algorithm. It can be set before calling export_certificate (if export_format is set to JWK) to control the key algorithm used to create the JWK. This setting will also be populated after loading a JWK file.

Valid values are:

(empty string)
HS256
HS384
HS512
RS256
RS384
RS512
EC256
EC384
EC512
EC256K

JWKExportX5C: Whether to export a certificate chain to the x5c parameter.

When set to true, the component will attempt to build the X.509 certificate chain for the certificate currently selected by cert_subject. If successful, the x5c parameter will be added to the JWK. It can be set before calling export_certificate (if export_format is set to JWK).

The default value is False.

JWKKeyId: The JWK key Id.

This setting specifies the JWK key Id. It can be set before calling export_certificate (if export_format is set to JWK). This setting will also be populated after loading a JWK file.

JWKKeyOps: The JWK intended key operations list.

This setting specifies the intended key operations for the JWK. It can be set before calling export_certificate (if export_format is set to JWK). This setting will also be populated after loading a JWK file.

This setting format is a JSON array. Examples: ["sign","verify"] or ["encrypt"].

JWKUse: The JWK use parameter value.

This setting specifies the intended usage of the key. It can be set before calling export_certificate (if export_format is set to JWK). This setting will also be populated after loading a JWK file.

Valid values are enc and sig.

KeyFormat: How the public and private key are formatted.

This setting controls the format of cert_public_key and cert_private_key. By default these properties hold PEM formatted public and private key data. When set to 1 (XML) the keys are stored in a XML format. This only affects the values returned by the class; the actual keys remain the same regardless of this setting. Possible values are:

0 (PEM - default)
1 (XML)

The default value is 0 (PEM).

KSP: The Key Storage Provider.

The name of the Key Storage Provider used to store and create keys. By default, the value is Microsoft Software Key Storage Provider. To use the Trusted Platform Module (TPM), set this value to Microsoft Platform Crypto Provider.

LogLevel: The level of detail that is logged.

This setting controls the level of detail that is logged through the on_log event. Possible values are:


0 (None)	No events are logged.
1 (Info - default)	Informational events are logged.
2 (Verbose)	Detailed data are logged.
3 (Debug)	Debug data are logged.

PFXCertEncryptionAlgorithm: Certificate encryption algorithm used when exporting to PFX format.

This setting specifies the algorithm used to encrypt the certificate when calling export_certificate, and is applicable only when export_format is set to PFX or PKCS12.

This setting takes one of the following values (either the OID or friendly name can be used):


2.16.840.1.101.3.4.1.42	PBES2-AES-256-CBC (default)
2.16.840.1.101.3.4.1.2	PBES2-AES-128-CBC
1.2.840.113549.3.7	PBES2-DES-EDE3-CBC
1.2.840.113549.1.12.1.1	PBES1-RC4-128
1.2.840.113549.1.12.1.2	PBES1-RC4-40
1.2.840.113549.1.12.1.3	PBES1-3-KeyTripleDES-CBC
1.2.840.113549.1.12.1.4	PBES1-2-KeyTripleDES-CBC
1.2.840.113549.1.12.1.5	PBES1-RC2-128-CBC
1.2.840.113549.1.12.1.6	PBES1-RC2-40-CBC

PFXKeyEncryptionAlgorithm: Private key encryption algorithm used when exporting to PFX format.

This setting specifies the algorithm used to encrypt the private key when calling export_certificate, and is applicable only when export_format is set to PFX or PKCS12.

This setting takes one of the following values (either the OID or friendly name can be used):


2.16.840.1.101.3.4.1.42	PBES2-AES-256-CBC (default)
2.16.840.1.101.3.4.1.2	PBES2-AES-128-CBC
1.2.840.113549.3.7	PBES2-DES-EDE3-CBC
1.2.840.113549.1.12.1.1	PBES1-RC4-128
1.2.840.113549.1.12.1.2	PBES1-RC4-40
1.2.840.113549.1.12.1.3	PBES1-3-KeyTripleDES-CBC
1.2.840.113549.1.12.1.4	PBES1-2-KeyTripleDES-CBC
1.2.840.113549.1.12.1.5	PBES1-RC2-128-CBC
1.2.840.113549.1.12.1.6	PBES1-RC2-40-CBC

ReplaceKey: Whether or not to replace an existing key when creating a new key.

If this is false (default), the component will throw an error if a duplicate key exists while generating a new keyset using create_key. If set to true, the component will replace a key if it already exists when generating new keys.

RequestSubjectAltNames: Subject Alternative Names for a Certificate Signing Request.

This allows Subject Alternative Names to be added to a Certificate Signing request. The setting only supports email, DNS, URI, and IPv4 addresses. Separate alternative names should be separated by commas. For example:

string altNames = "email:copy,dns:domain.com,dns.1:other.domain.com,uri:http://www.domain.com,ip:192.168.1.102"

TPMMigrationPassword: The password for the certificate or key.

This setting must be set before calling create_key, create_certificate, and import_certificate methods. The default value is an empty string. If this config is set, the private key in TPM can be exported via the ExportCertificate method with the correct password later. If the config is not set, the private key in TPM can never be exported from TPM. Below is a brief code example of how to use this configuration setting for importing and exporting certificates. // Initialize CertMgr component Certmgr certmgr = new Certmgr(); certmgr.Config("UseInternalSecurityAPI=false"); // Specify TPM integration parameters certmgr.CertStoreType = CertStoreTypes.cstUser; certmgr.CertStore = "MY"; certmgr.Config("KSP=Microsoft Platform Crypto Provider"); // Import a certificate into the TPM certmgr.ImportCertificate("path/to/certificate.pem", "password", "subject"); // Initialize CertMgr component Certmgr certmgr = new Certmgr(); certmgr.Config("UseInternalSecurityAPI=false"); // Specify TPM integration parameters certmgr.CertStoreType = CertStoreTypes.cstUser; certmgr.CertStore = "MY"; certmgr.Config("KSP=Microsoft Platform Crypto Provider"); certmgr.Config("TPMMigrationPassword=password"); certmgr.ExportPrivateKey = true; // Create a certificate object certmgr.Cert = new Certificate(CertStoreTypes.cstUser, "MY", "", rsaSubject); // Export the certificate certmgr.ExportCertificate("../path/to/cert", "password");

X509Algorithm: Public Key Algorithm OID.

This setting exposes the Public Key Algorithm object identifier (OID) value for the currently loaded cert.

X509SignatureAlgorithm: Signature Algorithm OID.

This setting exposes the Signature Algorithm object identifier (OID) value for the currently loaded cert.

Base Config Settings

BuildInfo: Information about the product's build.

When queried, this setting will return a string containing information about the product's build.

CodePage: The system code page used for Unicode to Multibyte translations.

The default code page is Unicode UTF-8 (65001).

The following is a list of valid code page identifiers:


Identifier	Name
037	IBM EBCDIC - U.S./Canada
437	OEM - United States
500	IBM EBCDIC - International
708	Arabic - ASMO 708
709	Arabic - ASMO 449+, BCON V4
710	Arabic - Transparent Arabic
720	Arabic - Transparent ASMO
737	OEM - Greek (formerly 437G)
775	OEM - Baltic
850	OEM - Multilingual Latin I
852	OEM - Latin II
855	OEM - Cyrillic (primarily Russian)
857	OEM - Turkish
858	OEM - Multilingual Latin I + Euro symbol
860	OEM - Portuguese
861	OEM - Icelandic
862	OEM - Hebrew
863	OEM - Canadian-French
864	OEM - Arabic
865	OEM - Nordic
866	OEM - Russian
869	OEM - Modern Greek
870	IBM EBCDIC - Multilingual/ROECE (Latin-2)
874	ANSI/OEM - Thai (same as 28605, ISO 8859-15)
875	IBM EBCDIC - Modern Greek
932	ANSI/OEM - Japanese, Shift-JIS
936	ANSI/OEM - Simplified Chinese (PRC, Singapore)
949	ANSI/OEM - Korean (Unified Hangul Code)
950	ANSI/OEM - Traditional Chinese (Taiwan; Hong Kong SAR, PRC)
1026	IBM EBCDIC - Turkish (Latin-5)
1047	IBM EBCDIC - Latin 1/Open System
1140	IBM EBCDIC - U.S./Canada (037 + Euro symbol)
1141	IBM EBCDIC - Germany (20273 + Euro symbol)
1142	IBM EBCDIC - Denmark/Norway (20277 + Euro symbol)
1143	IBM EBCDIC - Finland/Sweden (20278 + Euro symbol)
1144	IBM EBCDIC - Italy (20280 + Euro symbol)
1145	IBM EBCDIC - Latin America/Spain (20284 + Euro symbol)
1146	IBM EBCDIC - United Kingdom (20285 + Euro symbol)
1147	IBM EBCDIC - France (20297 + Euro symbol)
1148	IBM EBCDIC - International (500 + Euro symbol)
1149	IBM EBCDIC - Icelandic (20871 + Euro symbol)
1200	Unicode UCS-2 Little-Endian (BMP of ISO 10646)
1201	Unicode UCS-2 Big-Endian
1250	ANSI - Central European
1251	ANSI - Cyrillic
1252	ANSI - Latin I
1253	ANSI - Greek
1254	ANSI - Turkish
1255	ANSI - Hebrew
1256	ANSI - Arabic
1257	ANSI - Baltic
1258	ANSI/OEM - Vietnamese
1361	Korean (Johab)
10000	MAC - Roman
10001	MAC - Japanese
10002	MAC - Traditional Chinese (Big5)
10003	MAC - Korean
10004	MAC - Arabic
10005	MAC - Hebrew
10006	MAC - Greek I
10007	MAC - Cyrillic
10008	MAC - Simplified Chinese (GB 2312)
10010	MAC - Romania
10017	MAC - Ukraine
10021	MAC - Thai
10029	MAC - Latin II
10079	MAC - Icelandic
10081	MAC - Turkish
10082	MAC - Croatia
12000	Unicode UCS-4 Little-Endian
12001	Unicode UCS-4 Big-Endian
20000	CNS - Taiwan
20001	TCA - Taiwan
20002	Eten - Taiwan
20003	IBM5550 - Taiwan
20004	TeleText - Taiwan
20005	Wang - Taiwan
20105	IA5 IRV International Alphabet No. 5 (7-bit)
20106	IA5 German (7-bit)
20107	IA5 Swedish (7-bit)
20108	IA5 Norwegian (7-bit)
20127	US-ASCII (7-bit)
20261	T.61
20269	ISO 6937 Non-Spacing Accent
20273	IBM EBCDIC - Germany
20277	IBM EBCDIC - Denmark/Norway
20278	IBM EBCDIC - Finland/Sweden
20280	IBM EBCDIC - Italy
20284	IBM EBCDIC - Latin America/Spain
20285	IBM EBCDIC - United Kingdom
20290	IBM EBCDIC - Japanese Katakana Extended
20297	IBM EBCDIC - France
20420	IBM EBCDIC - Arabic
20423	IBM EBCDIC - Greek
20424	IBM EBCDIC - Hebrew
20833	IBM EBCDIC - Korean Extended
20838	IBM EBCDIC - Thai
20866	Russian - KOI8-R
20871	IBM EBCDIC - Icelandic
20880	IBM EBCDIC - Cyrillic (Russian)
20905	IBM EBCDIC - Turkish
20924	IBM EBCDIC - Latin-1/Open System (1047 + Euro symbol)
20932	JIS X 0208-1990 & 0121-1990
20936	Simplified Chinese (GB2312)
21025	IBM EBCDIC - Cyrillic (Serbian, Bulgarian)
21027	Extended Alpha Lowercase
21866	Ukrainian (KOI8-U)
28591	ISO 8859-1 Latin I
28592	ISO 8859-2 Central Europe
28593	ISO 8859-3 Latin 3
28594	ISO 8859-4 Baltic
28595	ISO 8859-5 Cyrillic
28596	ISO 8859-6 Arabic
28597	ISO 8859-7 Greek
28598	ISO 8859-8 Hebrew
28599	ISO 8859-9 Latin 5
28605	ISO 8859-15 Latin 9
29001	Europa 3
38598	ISO 8859-8 Hebrew
50220	ISO 2022 Japanese with no halfwidth Katakana
50221	ISO 2022 Japanese with halfwidth Katakana
50222	ISO 2022 Japanese JIS X 0201-1989
50225	ISO 2022 Korean
50227	ISO 2022 Simplified Chinese
50229	ISO 2022 Traditional Chinese
50930	Japanese (Katakana) Extended
50931	US/Canada and Japanese
50933	Korean Extended and Korean
50935	Simplified Chinese Extended and Simplified Chinese
50936	Simplified Chinese
50937	US/Canada and Traditional Chinese
50939	Japanese (Latin) Extended and Japanese
51932	EUC - Japanese
51936	EUC - Simplified Chinese
51949	EUC - Korean
51950	EUC - Traditional Chinese
52936	HZ-GB2312 Simplified Chinese
54936	Windows XP: GB18030 Simplified Chinese (4 Byte)
57002	ISCII Devanagari
57003	ISCII Bengali
57004	ISCII Tamil
57005	ISCII Telugu
57006	ISCII Assamese
57007	ISCII Oriya
57008	ISCII Kannada
57009	ISCII Malayalam
57010	ISCII Gujarati
57011	ISCII Punjabi
65000	Unicode UTF-7
65001	Unicode UTF-8

The following is a list of valid code page identifiers for Mac OS only:


Identifier	Name
1	ASCII
2	NEXTSTEP
3	JapaneseEUC
4	UTF8
5	ISOLatin1
6	Symbol
7	NonLossyASCII
8	ShiftJIS
9	ISOLatin2
10	Unicode
11	WindowsCP1251
12	WindowsCP1252
13	WindowsCP1253
14	WindowsCP1254
15	WindowsCP1250
21	ISO2022JP
30	MacOSRoman
10	UTF16String
0x90000100	UTF16BigEndian
0x94000100	UTF16LittleEndian
0x8c000100	UTF32String
0x98000100	UTF32BigEndian
0x9c000100	UTF32LittleEndian
65536	Proprietary

LicenseInfo: Information about the current license.

When queried, this setting will return a string containing information about the license this instance of a class is using. It will return the following information:

Product: The product the license is for.
Product Key: The key the license was generated from.
License Source: Where the license was found (e.g., RuntimeLicense, License File).
License Type: The type of license installed (e.g., Royalty Free, Single Server).
Last Valid Build: The last valid build number for which the license will work.

MaskSensitiveData: Whether sensitive data is masked in log messages.

In certain circumstances it may be beneficial to mask sensitive data, like passwords, in log messages. Set this to True to mask sensitive data. The default is True.

This setting only works on these classes: AS3Receiver, AS3Sender, Atom, Client(3DS), FTP, FTPServer, IMAP, OFTPClient, SSHClient, SCP, Server(3DS), Sexec, SFTP, SFTPServer, SSHServer, TCPClient, TCPServer.

ProcessIdleEvents: Whether the class uses its internal event loop to process events when the main thread is idle.

If set to False, the class will not fire internal idle events. Set this to False to use the class in a background thread on Mac OS. By default, this setting is True.

SelectWaitMillis: The length of time in milliseconds the class will wait when DoEvents is called if there are no events to process.

If there are no events to process when do_events is called, the class will wait for the amount of time specified here before returning. The default value is 20.

UseInternalSecurityAPI: Whether or not to use the system security libraries or an internal implementation.

When set to False, the class will use the system security libraries by default to perform cryptographic functions where applicable.

Setting this configuration setting to True tells the class to use the internal implementation instead of using the system security libraries.

On Windows, this setting is set to False by default. On Linux/macOS, this setting is set to True by default.

To use the system security libraries for Linux, OpenSSL support must be enabled. For more information on how to enable OpenSSL, please refer to the OpenSSL Notes section.

CertMgr Errors

143	Busy executing current method.
144	No certificate selected.
221	Cannot acquire CSP.
222	Cannot generate key.
270	Cannot load specified security library.
271	Cannot open certificate store.
272	Cannot find specified certificate.
274	Cannot get certificate chain.
275	Cannot verify certificate chain.
279	Error enumerating certificate stores.
280	The certificate could not be decoded.
281	Cannot find security provider.
282	Cannot add certificate to store.
283	The certificate could not be encoded.
285	Cannot create certificate signing request.
286	Cannot acquire Issuer private key.
287	Cannot delete certificate.
288	Cannot export certificate.