PGPReader Class
Properties Methods Events Config Settings Errors
The PGPReader class unprotects, verifies, and extracts data from protected PGP files.
Syntax
class secureblackbox.PGPReader
Remarks
PGPReader lets you process PGP messages, and validate and extract the protected data.
PGPReader supports all modern PGP keys and formats, from last-century PGP 2.6.x to the state-of-the art PGP 6. Single- and multi-file, as well as for-your-eyes-only PGP containers are supported.
The use of PGPReader is quite straightforward: you only need to provide the protected data and the keyring files, and the component will do the rest. PGPReader detects the protection parameters, matches them to the keys, and unwraps the protected data automatically.
Preparing keys
Encryption and signing in PGP is done with asymmetric keys (and sometimes with passwords, but that is a far less common scenario). Keys are normally stored in files called keyrings. More often that not they consist of a pair of files: a public keyring (e.g pubring.pkr) and a secret keyring (secring.skr), although there are exceptions. Sometimes, parties provide each other with standalone public keys that they want them to encrypt or verify data with.
Whichever form your keyring takes, use PGPKeyring to load it. It is recommended to load all the keyring files that you have
to make sure that you have all the keys loaded. PGPKeyring can detect duplicate keys, so don't worry about loading the same key twice -
any duplicates will be neatly merged together into one key object.
PGPKeyring keyring = new PGPKeyring();
keyring.ImportFromFile("pubring.pkr");
keyring.ImportFromFile("secring.skr");
You keyring will typically contain two types of keys: public and private. Private keys (i.e. your keys) are used for signing and decryption. Public keys (someone else's keys) are used for encryption and signature verification. This means that if you are looking to decrypt a file, you need to get your private keys ready. If you are looking to verify someone's signature over the data, you need to get the public keys.
When processing protected files PGPReader can look for the required keys in the keyring and select the appropriate ones automatically. This means that you do not need to comb through your key collection
manually, cherry-picking public and private keys. Simply assign the entire collection of keys to PGPReader's decrypting_keys and verifying_keys properties, and PGPReader will find and use the right one:
reader.DecryptingKeys = keyring.Keys;
reader.VerifyingKeys = keyring.Keys;
When it comes to using your private keys - i.e. when decrypting the data - there is one important catch that you need to keep in mind. Private PGP keys are typically protected with passwords. To be able to use them, you need to provide the valid password to the component when the key needs to be used. You can do that in one of the following three ways:
- By assigning the password to property. You can check whether the provided password is valid using the property.
- By assigning the password to key_passphrase property. This and the previous method assumes that you anticipate which key you will likely need to use.
- By subscribing to on_key_passphrase_needed event and providing the password from within the event handler. This event will be fired in the middle of the decryption process for each eligible private key for which no valid password was provided using the first two methods. This method lets you provide the password on-the-fly, and is handy when you don't know which key you are going to use in advance.
Configuring the component
Unprotection configuration if quite straightforward and encompasses adjustment of the following settings:
- Provide the input data via the input_file (or input_bytes) property.
- Provide the destination in output_file. If no output destination is provided, the output will be generated in output_bytes.
- When processing multi-files PGP archives, consider subscribing to on_multiple_files_found, on_file_extraction_start and on_file_extraction_finish events. These come handy in tracking progress and adjusting output locations for individual files.
- Depending on your circumstances, you may want to subscribe to on_signed and on_encryption_info events to be notified about various protection parameters.
Unprotecting the file
You are all set now. Call the appropriate unprotection method to proceed with operation:
- decrypt_and_verify: process the input data by decrypting any protected data, extracting individual files, and verifying signatures. This is the method that you would likely need to use in most cases.
- verify_detached: verify a detached signature. Remember that you need to provide the original data separately via the data_file or data_bytes properties.
reader.InputFile = "C:\files\input.pgp";
reader.OutputFile = "C:\files\output.txt";
reader.DecryptingKeys = keyring.Keys;
reader.VerifyingKeys = keyring.Keys;
reader.KeyPassphrase = "password";
reader.DecryptAndVerify();
Property List
The following is the full list of the properties of the class with short descriptions. Click on the links for further details.
armored | Indicates if the processed message had been base64-armored. |
compressed | Indicates if the processed message had been compressed. |
data_bytes | Use this property to pass the original signed data to class in the byte array form. |
data_file | The name of the file containing the original signed data. |
decrypting_key_count | The number of records in the DecryptingKey arrays. |
decrypting_key_handle | Allows to get or set a 'handle', a unique identifier of the underlying property object. |
decrypting_key_key_fp | The 20-byte fingerprint (hash value) of this key. |
decrypting_key_key_id | Contains a 8-byte key identifier. |
decrypting_key_passphrase | The key protection password. |
decrypting_key_passphrase_valid | Use this property to check whether the specified Passphrase is valid and can be used to unlock the secret key. |
decrypting_key_username | Specifies the name of the user bound to this key. |
external_crypto_async_document_id | Specifies an optional document ID for SignAsyncBegin() and SignAsyncEnd() calls. |
external_crypto_custom_params | Custom parameters to be passed to the signing service (uninterpreted). |
external_crypto_data | Additional data to be included in the async state and mirrored back by the requestor. |
external_crypto_external_hash_calculation | Specifies whether the message hash is to be calculated at the external endpoint. |
external_crypto_hash_algorithm | Specifies the request's signature hash algorithm. |
external_crypto_key_id | The ID of the pre-shared key used for DC request authentication. |
external_crypto_key_secret | The pre-shared key used for DC request authentication. |
external_crypto_method | Specifies the asynchronous signing method. |
external_crypto_mode | Specifies the external cryptography mode. |
external_crypto_public_key_algorithm | Provide the public key algorithm here if the certificate is not available on the pre-signing stage. |
fips_mode | Reserved. |
input_bytes | Use this property to pass the input to class in byte array form. |
input_file | Provides a filename of a file to process. |
key_passphrase | Specifies a passphrase for the decryption key. |
output_bytes | Use this property to read the output the class object has produced. |
output_file | The file where the encrypted and/or signed data will be saved. |
passphrase | Specifies a message decryption password. |
processed_length | Reports the number of bytes processed. |
profile | Specifies a pre-defined profile to apply when creating the signature. |
signature_count | The number of records in the Signature arrays. |
signature_certification_type | Specifies the type of a UserID signature. |
signature_creation_time | The time when the signature was created, in Universal Coordinated Time (UTC). |
signature_expiration_time | Specifies signature expiration time, in seconds since its creation time (CreationTime). |
signature_exportable | Specifies whether a certification signature is "exportable", meaning it can be used by entities other than the signature's issuer. |
signature_handle | Allows to get or set a 'handle', a unique identifier of the underlying property object. |
signature_hash_algorithm | Specifies the hash algorithm used in the signature. |
signature_hash_mark | Returns the hash mark attribute of a signature. |
signature_key_expiration_time | The number of seconds after which the signed key will expire. |
signature_key_flags | Returns the key flags included in the signature. |
signature_legacy_format | Indicates whether signature uses PGP 2. |
signature_policy_url | Contains the URL of the signature policy. |
signature_preferred_algorithms | Contains a list of algorithms preferred by the signed key holder. |
signature_primary_user_id | Indicates whether the UserID covered by the signature is the main user id for this key. |
signature_reason_for_revocation | Describes the reason why the key or the certificate was revoked. |
signature_revocable | Specifies whether the signature can be revoked. |
signature_revocation | Indicates whether or not the signature is a revocation signature. |
signature_signature_class | Indicates the signature class. |
signature_signer_key_id | Indicates the KeyID of the signing key. |
signature_signer_user_id | Indicates the UserID associated with the signing key. |
signature_strictly_valid | Returns True if this signature is valid in a strict way (no compatibility relaxations). |
signature_target | Indicates the KeyID or Username of the target key or user. |
signature_text_signature | Indicates whether or not the signature is made over a text document. |
signature_trust_amount | Specifies the amount of trust assigned by this signature. |
signature_trust_level | The trust level assigned by this signature. |
signature_validated | Whether the signature has been validated. |
signature_validity | Provides the validity status of the signature if the signature has been validated. |
signature_version | Indicates the signature version. |
verifying_key_count | The number of records in the VerifyingKey arrays. |
verifying_key_handle | Allows to get or set a 'handle', a unique identifier of the underlying property object. |
verifying_key_key_fp | The 20-byte fingerprint (hash value) of this key. |
verifying_key_key_id | Contains a 8-byte key identifier. |
verifying_key_username | Specifies the name of the user bound to this 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.
config | Sets or retrieves a configuration setting. |
decrypt_and_verify | Decrypts and verifies a protected message. |
do_action | Performs an additional action. |
reset | Resets the class settings. |
verify_detached | Verifies a detached signature. |
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_encryption_info | Reports early information on encryption parameters. |
on_error | Information about errors during PGP decryption/verification. |
on_external_decrypt | Handles remote or external decryption. |
on_file_extraction_finish | Reports the ending of file extraction process. |
on_file_extraction_start | Reports the beginning of file extraction process. |
on_key_passphrase_needed | Requests a key protection password from the application. |
on_multiple_files_found | Fires if the PGP message is recognized to contain multiple files. |
on_notification | This event notifies the application about an underlying control flow event. |
on_passphrase_needed | Requests a data protection password from the application. |
on_progress | Reports the progress of the decryption operation. |
on_signed | Notifies the application about a signed message. |
Config Settings
The following is a list of config settings for the class with short descriptions. Click on the links for further details.
IgnoreDataPacketLengths | Whether to check the length of input data packets. |
PasswordAttempts | The number of attempts allowed for entering password. |
TempPath | Path for storing temporary files. |
UndefInputLength | Set this property if you are working with non-seekable streams. |
UseGreedyMemoryConsumption | Whether to limit memory consumption for the cost of speed. |
ASN1UseGlobalTagCache | Controls whether ASN.1 module should use a global object cache. |
AssignSystemSmartCardPins | Specifies whether CSP-level PINs should be assigned to CNG keys. |
CheckKeyIntegrityBeforeUse | Enables or disable private key integrity check before use. |
CookieCaching | Specifies whether a cookie cache should be used for HTTP(S) transports. |
Cookies | Gets or sets local cookies for the class. |
DefDeriveKeyIterations | Specifies the default key derivation algorithm iteration count. |
DNSLocalSuffix | The suffix to assign for TLD names. |
EnableClientSideSSLFFDHE | Enables or disables finite field DHE key exchange support in TLS clients. |
GlobalCookies | Gets or sets global cookies for all the HTTP transports. |
HardwareCryptoUsePolicy | The hardware crypto usage policy. |
HttpUserAgent | Specifies the user agent name to be used by all HTTP clients. |
HttpVersion | The HTTP version to use in any inner HTTP client classes created. |
IgnoreExpiredMSCTLSigningCert | Whether to tolerate the expired Windows Update signing certificate. |
ListDelimiter | The delimiter character for multi-element lists. |
LogDestination | Specifies the debug log destination. |
LogDetails | Specifies the debug log details to dump. |
LogFile | Specifies the debug log filename. |
LogFilters | Specifies the debug log filters. |
LogFlushMode | Specifies the log flush mode. |
LogLevel | Specifies the debug log level. |
LogMaxEventCount | Specifies the maximum number of events to cache before further action is taken. |
LogRotationMode | Specifies the log rotation mode. |
MaxASN1BufferLength | Specifies the maximal allowed length for ASN.1 primitive tag data. |
MaxASN1TreeDepth | Specifies the maximal depth for processed ASN.1 trees. |
OCSPHashAlgorithm | Specifies the hash algorithm to be used to identify certificates in OCSP requests. |
OldClientSideRSAFallback | Specifies whether the SSH client should use a SHA1 fallback. |
PKICache | Specifies which PKI elements (certificates, CRLs, OCSP responses) should be cached. |
PKICachePath | Specifies the file system path where cached PKI data is stored. |
ProductVersion | Returns the version of the SecureBlackbox library. |
ServerSSLDHKeyLength | Sets the size of the TLS DHE key exchange group. |
StaticDNS | Specifies whether static DNS rules should be used. |
StaticIPAddress[domain] | Gets or sets an IP address for the specified domain name. |
StaticIPAddresses | Gets or sets all the static DNS rules. |
Tag | Allows to store any custom data. |
TLSSessionGroup | Specifies the group name of TLS sessions to be used for session resumption. |
TLSSessionLifetime | Specifies lifetime in seconds of the cached TLS session. |
TLSSessionPurgeInterval | Specifies how often the session cache should remove the expired TLS sessions. |
UseCRLObjectCaching | Specifies whether reuse of loaded CRL objects is enabled. |
UseInternalRandom | Switches between SecureBlackbox-own and platform PRNGs. |
UseLegacyAdESValidation | Enables legacy AdES validation mode. |
UseOCSPResponseObjectCaching | Specifies whether reuse of loaded OCSP response objects is enabled. |
UseOwnDNSResolver | Specifies whether the client classes should use own DNS resolver. |
UseSharedSystemStorages | Specifies whether the validation engine should use a global per-process copy of the system certificate stores. |
UseSystemNativeSizeCalculation | An internal CryptoAPI access tweak. |
UseSystemOAEPAndPSS | Enforces or disables the use of system-driven RSA OAEP and PSS computations. |
UseSystemRandom | Enables or disables the use of the OS PRNG. |
XMLRDNDescriptorName[OID] | Defines an OID mapping to descriptor names for the certificate's IssuerRDN or SubjectRDN. |
XMLRDNDescriptorPriority[OID] | Specifies the priority of descriptor names associated with a specific OID. |
XMLRDNDescriptorReverseOrder | Specifies whether to reverse the order of descriptors in RDN. |
XMLRDNDescriptorSeparator | Specifies the separator used between descriptors in RDN. |
armored Property
Indicates if the processed message had been base64-armored.
Syntax
def get_armored() -> bool: ...
armored = property(get_armored, None)
Default Value
FALSE
Remarks
This property is set to true if the supplied message was armored by encoding it into base64 and adding BEGIN and END brackets.
This property is read-only.
compressed Property
Indicates if the processed message had been compressed.
Syntax
def get_compressed() -> bool: ...
compressed = property(get_compressed, None)
Default Value
FALSE
Remarks
This property is set to true if the supplied message was compressed by its creator.
This property is read-only.
data_bytes Property
Use this property to pass the original signed data to class in the byte array form.
Syntax
def get_data_bytes() -> bytes: ... def set_data_bytes(value: bytes) -> None: ...
data_bytes = property(get_data_bytes, set_data_bytes)
Remarks
When validating detached signatures, assign a byte array containing the signed data to this property.
data_file Property
The name of the file containing the original signed data.
Syntax
def get_data_file() -> str: ... def set_data_file(value: str) -> None: ...
data_file = property(get_data_file, set_data_file)
Default Value
""
Remarks
Use this property to provide the original data when validating detached signatures with verify_detached.
decrypting_key_count Property
The number of records in the DecryptingKey arrays.
Syntax
def get_decrypting_key_count() -> int: ... def set_decrypting_key_count(value: int) -> None: ...
decrypting_key_count = property(get_decrypting_key_count, set_decrypting_key_count)
Default Value
0
Remarks
This property controls the size of the following arrays:
- decrypting_key_handle
- decrypting_key_key_fp
- decrypting_key_key_id
- decrypting_key_passphrase
- decrypting_key_passphrase_valid
- decrypting_key_username
decrypting_key_handle Property
Allows to get or set a 'handle', a unique identifier of the underlying property object.
Syntax
def get_decrypting_key_handle(decrypting_key_index: int) -> int: ... def set_decrypting_key_handle(decrypting_key_index: int, value: int) -> None: ...
Default Value
0
Remarks
Allows to get or set a 'handle', a unique identifier of the underlying property object. Use this property to assign objects of the same type in a quicker manner, without copying them fieldwise.
When you pass a handle of one object to another, the source object is copied to the destination rather than assigned. It is safe to get rid of the original object
after such operation.
pdfSigner.setSigningCertHandle(certMgr.getCertHandle());
The decrypting_key_index parameter specifies the index of the item in the array. The size of the array is controlled by the decrypting_key_count property.
decrypting_key_key_fp Property
The 20-byte fingerprint (hash value) of this key.
Syntax
def get_decrypting_key_key_fp(decrypting_key_index: int) -> str: ...
Default Value
""
Remarks
The 20-byte fingerprint (hash value) of this key.
KeyFP could be used to distinguish two keys with the same KeyID.
The decrypting_key_index parameter specifies the index of the item in the array. The size of the array is controlled by the decrypting_key_count property.
This property is read-only.
decrypting_key_key_id Property
Contains a 8-byte key identifier.
Syntax
def get_decrypting_key_key_id(decrypting_key_index: int) -> str: ...
Default Value
""
Remarks
Contains a 8-byte key identifier.
It is quite rare that IDs of two keys collide. If that happens, their fingerprints (KeyFP) can be used for distinguish between the keys. Please note that many PGP implementations show only 4 lowest bytes of the KeyID to the user.
The decrypting_key_index parameter specifies the index of the item in the array. The size of the array is controlled by the decrypting_key_count property.
This property is read-only.
decrypting_key_passphrase Property
The key protection password.
Syntax
def get_decrypting_key_passphrase(decrypting_key_index: int) -> str: ... def set_decrypting_key_passphrase(decrypting_key_index: int, value: str) -> None: ...
Default Value
""
Remarks
The key protection password.
The decrypting_key_index parameter specifies the index of the item in the array. The size of the array is controlled by the decrypting_key_count property.
decrypting_key_passphrase_valid Property
Use this property to check whether the specified Passphrase is valid and can be used to unlock the secret key.
Syntax
def get_decrypting_key_passphrase_valid(decrypting_key_index: int) -> bool: ...
Default Value
FALSE
Remarks
Use this property to check whether the specified decrypting_key_passphrase is valid and can be used to unlock the secret key.
The decrypting_key_index parameter specifies the index of the item in the array. The size of the array is controlled by the decrypting_key_count property.
This property is read-only.
decrypting_key_username Property
Specifies the name of the user bound to this key.
Syntax
def get_decrypting_key_username(decrypting_key_index: int) -> str: ...
Default Value
""
Remarks
Specifies the name of the user bound to this key.
The PGP username is typically represented with a full name and an email address, but generally can be any non-empty string.
The decrypting_key_index parameter specifies the index of the item in the array. The size of the array is controlled by the decrypting_key_count property.
This property is read-only.
external_crypto_async_document_id Property
Specifies an optional document ID for SignAsyncBegin() and SignAsyncEnd() calls.
Syntax
def get_external_crypto_async_document_id() -> str: ... def set_external_crypto_async_document_id(value: str) -> None: ...
external_crypto_async_document_id = property(get_external_crypto_async_document_id, set_external_crypto_async_document_id)
Default Value
""
Remarks
Specifies an optional document ID for SignAsyncBegin() and SignAsyncEnd() calls.
Use this property when working with multi-signature DCAuth requests and responses to uniquely identify documents signed within a larger batch. On the completion stage, this value helps the signing component identify the correct signature in the returned batch of responses.
If using batched requests, make sure to set this property to the same value on both the pre-signing (SignAsyncBegin) and completion (SignAsyncEnd) stages.
external_crypto_custom_params Property
Custom parameters to be passed to the signing service (uninterpreted).
Syntax
def get_external_crypto_custom_params() -> str: ... def set_external_crypto_custom_params(value: str) -> None: ...
external_crypto_custom_params = property(get_external_crypto_custom_params, set_external_crypto_custom_params)
Default Value
""
Remarks
Custom parameters to be passed to the signing service (uninterpreted).
external_crypto_data Property
Additional data to be included in the async state and mirrored back by the requestor.
Syntax
def get_external_crypto_data() -> str: ... def set_external_crypto_data(value: str) -> None: ...
external_crypto_data = property(get_external_crypto_data, set_external_crypto_data)
Default Value
""
Remarks
Additional data to be included in the async state and mirrored back by the requestor.
external_crypto_external_hash_calculation Property
Specifies whether the message hash is to be calculated at the external endpoint.
Syntax
def get_external_crypto_external_hash_calculation() -> bool: ... def set_external_crypto_external_hash_calculation(value: bool) -> None: ...
external_crypto_external_hash_calculation = property(get_external_crypto_external_hash_calculation, set_external_crypto_external_hash_calculation)
Default Value
FALSE
Remarks
Specifies whether the message hash is to be calculated at the external endpoint. Please note that this mode is not supported by the DCAuth class.
If set to true, the class will pass a few kilobytes of to-be-signed data from the document to the OnExternalSign event. This only applies when SignExternal() is called.
external_crypto_hash_algorithm Property
Specifies the request's signature hash algorithm.
Syntax
def get_external_crypto_hash_algorithm() -> str: ... def set_external_crypto_hash_algorithm(value: str) -> None: ...
external_crypto_hash_algorithm = property(get_external_crypto_hash_algorithm, set_external_crypto_hash_algorithm)
Default Value
"SHA256"
Remarks
Specifies the request's signature hash algorithm.
SB_HASH_ALGORITHM_SHA1 | SHA1 | |
SB_HASH_ALGORITHM_SHA224 | SHA224 | |
SB_HASH_ALGORITHM_SHA256 | SHA256 | |
SB_HASH_ALGORITHM_SHA384 | SHA384 | |
SB_HASH_ALGORITHM_SHA512 | SHA512 | |
SB_HASH_ALGORITHM_MD2 | MD2 | |
SB_HASH_ALGORITHM_MD4 | MD4 | |
SB_HASH_ALGORITHM_MD5 | MD5 | |
SB_HASH_ALGORITHM_RIPEMD160 | RIPEMD160 | |
SB_HASH_ALGORITHM_CRC32 | CRC32 | |
SB_HASH_ALGORITHM_SSL3 | SSL3 | |
SB_HASH_ALGORITHM_GOST_R3411_1994 | GOST1994 | |
SB_HASH_ALGORITHM_WHIRLPOOL | WHIRLPOOL | |
SB_HASH_ALGORITHM_POLY1305 | POLY1305 | |
SB_HASH_ALGORITHM_SHA3_224 | SHA3_224 | |
SB_HASH_ALGORITHM_SHA3_256 | SHA3_256 | |
SB_HASH_ALGORITHM_SHA3_384 | SHA3_384 | |
SB_HASH_ALGORITHM_SHA3_512 | SHA3_512 | |
SB_HASH_ALGORITHM_BLAKE2S_128 | BLAKE2S_128 | |
SB_HASH_ALGORITHM_BLAKE2S_160 | BLAKE2S_160 | |
SB_HASH_ALGORITHM_BLAKE2S_224 | BLAKE2S_224 | |
SB_HASH_ALGORITHM_BLAKE2S_256 | BLAKE2S_256 | |
SB_HASH_ALGORITHM_BLAKE2B_160 | BLAKE2B_160 | |
SB_HASH_ALGORITHM_BLAKE2B_256 | BLAKE2B_256 | |
SB_HASH_ALGORITHM_BLAKE2B_384 | BLAKE2B_384 | |
SB_HASH_ALGORITHM_BLAKE2B_512 | BLAKE2B_512 | |
SB_HASH_ALGORITHM_SHAKE_128 | SHAKE_128 | |
SB_HASH_ALGORITHM_SHAKE_256 | SHAKE_256 | |
SB_HASH_ALGORITHM_SHAKE_128_LEN | SHAKE_128_LEN | |
SB_HASH_ALGORITHM_SHAKE_256_LEN | SHAKE_256_LEN |
external_crypto_key_id Property
The ID of the pre-shared key used for DC request authentication.
Syntax
def get_external_crypto_key_id() -> str: ... def set_external_crypto_key_id(value: str) -> None: ...
external_crypto_key_id = property(get_external_crypto_key_id, set_external_crypto_key_id)
Default Value
""
Remarks
The ID of the pre-shared key used for DC request authentication.
Asynchronous DCAuth-driven communication requires that parties authenticate each other with a secret pre-shared cryptographic key. This provides an extra protection layer for the protocol and diminishes the risk of the private key becoming abused by foreign parties. Use this property to provide the pre-shared key identifier, and use external_crypto_key_secret to pass the key itself.
The same KeyID/KeySecret pair should be used on the DCAuth side for the signing requests to be accepted.
Note: The KeyID/KeySecret scheme is very similar to the AuthKey scheme used in various Cloud service providers to authenticate users.
Example:
signer.ExternalCrypto.KeyID = "MainSigningKey";
signer.ExternalCrypto.KeySecret = "abcdef0123456789";
external_crypto_key_secret Property
The pre-shared key used for DC request authentication.
Syntax
def get_external_crypto_key_secret() -> str: ... def set_external_crypto_key_secret(value: str) -> None: ...
external_crypto_key_secret = property(get_external_crypto_key_secret, set_external_crypto_key_secret)
Default Value
""
Remarks
The pre-shared key used for DC request authentication. This key must be set and match the key used by the DCAuth counterpart for the scheme to work.
Read more about configuring authentication in the external_crypto_key_id topic.
external_crypto_method Property
Specifies the asynchronous signing method.
Syntax
def get_external_crypto_method() -> int: ... def set_external_crypto_method(value: int) -> None: ...
external_crypto_method = property(get_external_crypto_method, set_external_crypto_method)
Default Value
0
Remarks
Specifies the asynchronous signing method. This is typically defined by the DC server capabilities and setup.
Available options:
asmdPKCS1 | 0 |
asmdPKCS7 | 1 |
external_crypto_mode Property
Specifies the external cryptography mode.
Syntax
def get_external_crypto_mode() -> int: ... def set_external_crypto_mode(value: int) -> None: ...
external_crypto_mode = property(get_external_crypto_mode, set_external_crypto_mode)
Default Value
0
Remarks
Specifies the external cryptography mode.
Available options:
ecmDefault | The default value (0) |
ecmDisabled | Do not use DC or external signing (1) |
ecmGeneric | Generic external signing with the OnExternalSign event (2) |
ecmDCAuth | DCAuth signing (3) |
ecmDCAuthJSON | DCAuth signing in JSON format (4) |
external_crypto_public_key_algorithm Property
Provide the public key algorithm here if the certificate is not available on the pre-signing stage.
Syntax
def get_external_crypto_public_key_algorithm() -> str: ... def set_external_crypto_public_key_algorithm(value: str) -> None: ...
external_crypto_public_key_algorithm = property(get_external_crypto_public_key_algorithm, set_external_crypto_public_key_algorithm)
Default Value
""
Remarks
Provide the public key algorithm here if the certificate is not available on the pre-signing stage.
SB_CERT_ALGORITHM_ID_RSA_ENCRYPTION | rsaEncryption | |
SB_CERT_ALGORITHM_MD2_RSA_ENCRYPTION | md2withRSAEncryption | |
SB_CERT_ALGORITHM_MD5_RSA_ENCRYPTION | md5withRSAEncryption | |
SB_CERT_ALGORITHM_SHA1_RSA_ENCRYPTION | sha1withRSAEncryption | |
SB_CERT_ALGORITHM_ID_DSA | id-dsa | |
SB_CERT_ALGORITHM_ID_DSA_SHA1 | id-dsa-with-sha1 | |
SB_CERT_ALGORITHM_DH_PUBLIC | dhpublicnumber | |
SB_CERT_ALGORITHM_SHA224_RSA_ENCRYPTION | sha224WithRSAEncryption | |
SB_CERT_ALGORITHM_SHA256_RSA_ENCRYPTION | sha256WithRSAEncryption | |
SB_CERT_ALGORITHM_SHA384_RSA_ENCRYPTION | sha384WithRSAEncryption | |
SB_CERT_ALGORITHM_SHA512_RSA_ENCRYPTION | sha512WithRSAEncryption | |
SB_CERT_ALGORITHM_ID_RSAPSS | id-RSASSA-PSS | |
SB_CERT_ALGORITHM_ID_RSAOAEP | id-RSAES-OAEP | |
SB_CERT_ALGORITHM_RSASIGNATURE_RIPEMD160 | ripemd160withRSA | |
SB_CERT_ALGORITHM_ID_ELGAMAL | elGamal | |
SB_CERT_ALGORITHM_SHA1_ECDSA | ecdsa-with-SHA1 | |
SB_CERT_ALGORITHM_RECOMMENDED_ECDSA | ecdsa-recommended | |
SB_CERT_ALGORITHM_SHA224_ECDSA | ecdsa-with-SHA224 | |
SB_CERT_ALGORITHM_SHA256_ECDSA | ecdsa-with-SHA256 | |
SB_CERT_ALGORITHM_SHA384_ECDSA | ecdsa-with-SHA384 | |
SB_CERT_ALGORITHM_SHA512_ECDSA | ecdsa-with-SHA512 | |
SB_CERT_ALGORITHM_EC | id-ecPublicKey | |
SB_CERT_ALGORITHM_SPECIFIED_ECDSA | ecdsa-specified | |
SB_CERT_ALGORITHM_GOST_R3410_1994 | id-GostR3410-94 | |
SB_CERT_ALGORITHM_GOST_R3410_2001 | id-GostR3410-2001 | |
SB_CERT_ALGORITHM_GOST_R3411_WITH_R3410_1994 | id-GostR3411-94-with-GostR3410-94 | |
SB_CERT_ALGORITHM_GOST_R3411_WITH_R3410_2001 | id-GostR3411-94-with-GostR3410-2001 | |
SB_CERT_ALGORITHM_SHA1_ECDSA_PLAIN | ecdsa-plain-SHA1 | |
SB_CERT_ALGORITHM_SHA224_ECDSA_PLAIN | ecdsa-plain-SHA224 | |
SB_CERT_ALGORITHM_SHA256_ECDSA_PLAIN | ecdsa-plain-SHA256 | |
SB_CERT_ALGORITHM_SHA384_ECDSA_PLAIN | ecdsa-plain-SHA384 | |
SB_CERT_ALGORITHM_SHA512_ECDSA_PLAIN | ecdsa-plain-SHA512 | |
SB_CERT_ALGORITHM_RIPEMD160_ECDSA_PLAIN | ecdsa-plain-RIPEMD160 | |
SB_CERT_ALGORITHM_WHIRLPOOL_RSA_ENCRYPTION | whirlpoolWithRSAEncryption | |
SB_CERT_ALGORITHM_ID_DSA_SHA224 | id-dsa-with-sha224 | |
SB_CERT_ALGORITHM_ID_DSA_SHA256 | id-dsa-with-sha256 | |
SB_CERT_ALGORITHM_SHA3_224_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-sha3-224 | |
SB_CERT_ALGORITHM_SHA3_256_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-sha3-256 | |
SB_CERT_ALGORITHM_SHA3_384_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-sha3-384 | |
SB_CERT_ALGORITHM_SHA3_512_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-sha3-512 | |
SB_CERT_ALGORITHM_SHA3_224_ECDSA | id-ecdsa-with-sha3-224 | |
SB_CERT_ALGORITHM_SHA3_256_ECDSA | id-ecdsa-with-sha3-256 | |
SB_CERT_ALGORITHM_SHA3_384_ECDSA | id-ecdsa-with-sha3-384 | |
SB_CERT_ALGORITHM_SHA3_512_ECDSA | id-ecdsa-with-sha3-512 | |
SB_CERT_ALGORITHM_SHA3_224_ECDSA_PLAIN | id-ecdsa-plain-with-sha3-224 | |
SB_CERT_ALGORITHM_SHA3_256_ECDSA_PLAIN | id-ecdsa-plain-with-sha3-256 | |
SB_CERT_ALGORITHM_SHA3_384_ECDSA_PLAIN | id-ecdsa-plain-with-sha3-384 | |
SB_CERT_ALGORITHM_SHA3_512_ECDSA_PLAIN | id-ecdsa-plain-with-sha3-512 | |
SB_CERT_ALGORITHM_ID_DSA_SHA3_224 | id-dsa-with-sha3-224 | |
SB_CERT_ALGORITHM_ID_DSA_SHA3_256 | id-dsa-with-sha3-256 | |
SB_CERT_ALGORITHM_BLAKE2S_128_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-blake2s128 | |
SB_CERT_ALGORITHM_BLAKE2S_160_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-blake2s160 | |
SB_CERT_ALGORITHM_BLAKE2S_224_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-blake2s224 | |
SB_CERT_ALGORITHM_BLAKE2S_256_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-blake2s256 | |
SB_CERT_ALGORITHM_BLAKE2B_160_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-blake2b160 | |
SB_CERT_ALGORITHM_BLAKE2B_256_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-blake2b256 | |
SB_CERT_ALGORITHM_BLAKE2B_384_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-blake2b384 | |
SB_CERT_ALGORITHM_BLAKE2B_512_RSA_ENCRYPTION | id-rsassa-pkcs1-v1_5-with-blake2b512 | |
SB_CERT_ALGORITHM_BLAKE2S_128_ECDSA | id-ecdsa-with-blake2s128 | |
SB_CERT_ALGORITHM_BLAKE2S_160_ECDSA | id-ecdsa-with-blake2s160 | |
SB_CERT_ALGORITHM_BLAKE2S_224_ECDSA | id-ecdsa-with-blake2s224 | |
SB_CERT_ALGORITHM_BLAKE2S_256_ECDSA | id-ecdsa-with-blake2s256 | |
SB_CERT_ALGORITHM_BLAKE2B_160_ECDSA | id-ecdsa-with-blake2b160 | |
SB_CERT_ALGORITHM_BLAKE2B_256_ECDSA | id-ecdsa-with-blake2b256 | |
SB_CERT_ALGORITHM_BLAKE2B_384_ECDSA | id-ecdsa-with-blake2b384 | |
SB_CERT_ALGORITHM_BLAKE2B_512_ECDSA | id-ecdsa-with-blake2b512 | |
SB_CERT_ALGORITHM_BLAKE2S_128_ECDSA_PLAIN | id-ecdsa-plain-with-blake2s128 | |
SB_CERT_ALGORITHM_BLAKE2S_160_ECDSA_PLAIN | id-ecdsa-plain-with-blake2s160 | |
SB_CERT_ALGORITHM_BLAKE2S_224_ECDSA_PLAIN | id-ecdsa-plain-with-blake2s224 | |
SB_CERT_ALGORITHM_BLAKE2S_256_ECDSA_PLAIN | id-ecdsa-plain-with-blake2s256 | |
SB_CERT_ALGORITHM_BLAKE2B_160_ECDSA_PLAIN | id-ecdsa-plain-with-blake2b160 | |
SB_CERT_ALGORITHM_BLAKE2B_256_ECDSA_PLAIN | id-ecdsa-plain-with-blake2b256 | |
SB_CERT_ALGORITHM_BLAKE2B_384_ECDSA_PLAIN | id-ecdsa-plain-with-blake2b384 | |
SB_CERT_ALGORITHM_BLAKE2B_512_ECDSA_PLAIN | id-ecdsa-plain-with-blake2b512 | |
SB_CERT_ALGORITHM_ID_DSA_BLAKE2S_224 | id-dsa-with-blake2s224 | |
SB_CERT_ALGORITHM_ID_DSA_BLAKE2S_256 | id-dsa-with-blake2s256 | |
SB_CERT_ALGORITHM_EDDSA_ED25519 | id-Ed25519 | |
SB_CERT_ALGORITHM_EDDSA_ED448 | id-Ed448 | |
SB_CERT_ALGORITHM_EDDSA_ED25519_PH | id-Ed25519ph | |
SB_CERT_ALGORITHM_EDDSA_ED448_PH | id-Ed448ph | |
SB_CERT_ALGORITHM_EDDSA | id-EdDSA | |
SB_CERT_ALGORITHM_EDDSA_SIGNATURE | id-EdDSA-sig |
fips_mode Property
Reserved.
Syntax
def get_fips_mode() -> bool: ... def set_fips_mode(value: bool) -> None: ...
fips_mode = property(get_fips_mode, set_fips_mode)
Default Value
FALSE
Remarks
This property is reserved for future use.
input_bytes Property
Use this property to pass the input to class in byte array form.
Syntax
def get_input_bytes() -> bytes: ... def set_input_bytes(value: bytes) -> None: ...
input_bytes = property(get_input_bytes, set_input_bytes)
Remarks
Assign a byte array containing the data to be processed to this property.
input_file Property
Provides a filename of a file to process.
Syntax
def get_input_file() -> str: ... def set_input_file(value: str) -> None: ...
input_file = property(get_input_file, set_input_file)
Default Value
""
Remarks
Use this property to provide a path to the file to be encrypted and/or signed.
key_passphrase Property
Specifies a passphrase for the decryption key.
Syntax
def get_key_passphrase() -> str: ... def set_key_passphrase(value: str) -> None: ...
key_passphrase = property(get_key_passphrase, set_key_passphrase)
Default Value
""
Remarks
Use this property to provide a passphrase for the decryption secret key.
If this property is left empty or a wrong passphrase is provided, the on_key_passphrase_needed event will be fired to request the correct passphrase.
output_bytes Property
Use this property to read the output the class object has produced.
Syntax
def get_output_bytes() -> bytes: ...
output_bytes = property(get_output_bytes, None)
Remarks
Read the contents of this property after the operation has completed to read the produced output. This property will only be set if the output_file and output_stream properties had not been assigned.
This property is read-only.
output_file Property
The file where the encrypted and/or signed data will be saved.
Syntax
def get_output_file() -> str: ... def set_output_file(value: str) -> None: ...
output_file = property(get_output_file, set_output_file)
Default Value
""
Remarks
Use this property to provide a path to the file where the class should store the encrypted and/or signed data.
passphrase Property
Specifies a message decryption password.
Syntax
def get_passphrase() -> str: ... def set_passphrase(value: str) -> None: ...
passphrase = property(get_passphrase, set_passphrase)
Default Value
""
Remarks
Use this property to provide a password to decrypt the data. Whether the message can be decrypted with a password is indicated by PassphraseUsed parameter of on_encryption_info event.
Note that this is not the same as a secret key passphrase, which should be provided via key_passphrase property.
If this property is left empty or the assigned passphrase is incorrect, the on_passphrase_needed event will be fired to request the correct one.
processed_length Property
Reports the number of bytes processed.
Syntax
def get_processed_length() -> int: ...
processed_length = property(get_processed_length, None)
Default Value
0
Remarks
Use this property to check the number of bytes that the component has read when processing the protected message.
This property is read-only.
profile Property
Specifies a pre-defined profile to apply when creating the signature.
Syntax
def get_profile() -> str: ... def set_profile(value: str) -> None: ...
profile = property(get_profile, set_profile)
Default Value
""
Remarks
Advanced signatures come in many variants, which are often defined by parties that needs to process them or by local standards. SecureBlackbox profiles are sets of pre-defined configurations which correspond to particular signature variants. By specifying a profile, you are pre-configuring the component to make it produce the signature that matches the configuration corresponding to that profile.
signature_count Property
The number of records in the Signature arrays.
Syntax
def get_signature_count() -> int: ...
signature_count = property(get_signature_count, None)
Default Value
0
Remarks
This property controls the size of the following arrays:
- signature_certification_type
- signature_creation_time
- signature_expiration_time
- signature_exportable
- signature_handle
- signature_hash_algorithm
- signature_hash_mark
- signature_key_expiration_time
- signature_key_flags
- signature_legacy_format
- signature_policy_url
- signature_preferred_algorithms
- signature_primary_user_id
- signature_reason_for_revocation
- signature_revocable
- signature_revocation
- signature_signature_class
- signature_signer_key_id
- signature_signer_user_id
- signature_strictly_valid
- signature_target
- signature_text_signature
- signature_trust_amount
- signature_trust_level
- signature_validated
- signature_validity
- signature_version
This property is read-only.
signature_certification_type Property
Specifies the type of a UserID signature.
Syntax
def get_signature_certification_type(signature_index: int) -> int: ...
Default Value
0
Remarks
Specifies the type of a UserID signature.
pctGeneric | 0 | Generic certification of a User ID and Public Key packet. The issuer of this certification does not make any particular assertion as to how well the certifier has checked that the owner of the key is in fact the person described by the User ID. By default user certifications use Generic type. |
pctPersona | 1 | Persona certification of a User ID and Public Key packet. The issuer of this certification has not done any verification of the claim that the owner of this key corresponds to the specified User ID. |
pctCasual | 2 | Casual certification of a User ID and a Public Key packet. The issuer of this certification has done some casual verification of the claim of identity. |
pctPositive | 3 | Positive certification of a User ID and a Public Key packet. The issuer of this certification has done substantial verification of the claim of identity. |
The signature_index parameter specifies the index of the item in the array. The size of the array is controlled by the signature_count property.
This property is read-only.
signature_creation_time Property
The time when the signature was created, in Universal Coordinated Time (UTC).
Syntax
def get_signature_creation_time(signature_index: int) -> str: ...
Default Value
""
Remarks
The time when the signature was created, in Universal Coordinated Time (UTC).
The signature_index parameter specifies the index of the item in the array. The size of the array is controlled by the signature_count property.
This property is read-only.
signature_expiration_time Property
Specifies signature expiration time, in seconds since its creation time (CreationTime).
Syntax
def get_signature_expiration_time(signature_index: int) -> int: ...
Default Value
0
Remarks
Specifies signature expiration time, in seconds since its creation time (CreationTime).
Ths property set to 0 indicates that the signature never expires.
The signature_index parameter specifies the index of the item in the array. The size of the array is controlled by the signature_count property.
This property is read-only.
signature_exportable Property
Specifies whether a certification signature is "exportable", meaning it can be used by entities other than the signature's issuer.
Syntax
def get_signature_exportable(signature_index: int) -> bool: ...
Default Value
FALSE
Remarks
Specifies whether a certification signature is "exportable", meaning it can be used by entities other than the signature's issuer.
The signature_index parameter specifies the index of the item in the array. The size of the array is controlled by the signature_count property.
This property is read-only.
signature_handle Property
Allows to get or set a 'handle', a unique identifier of the underlying property object.
Syntax
def get_signature_handle(signature_index: int) -> int: ...
Default Value
0
Remarks
Allows to get or set a 'handle', a unique identifier of the underlying property object. Use this property to assign objects of the same type in a quicker manner, without copying them fieldwise.
When you pass a handle of one object to another, the source object is copied to the destination rather than assigned. It is safe to get rid of the original object
after such operation.
pdfSigner.setSigningCertHandle(certMgr.getCertHandle());
The signature_index parameter specifies the index of the item in the array. The size of the array is controlled by the signature_count property.
This property is read-only.
signature_hash_algorithm Property
Specifies the hash algorithm used in the signature.
Syntax
def get_signature_hash_algorithm(signature_index: int) -> str: ...
Default Value
""
Remarks
Specifies the hash algorithm used in the signature.
The signature_index parameter specifies the index of the item in the array. The size of the array is controlled by the signature_count property.
This property is read-only.
signature_hash_mark Property
Returns the hash mark attribute of a signature.
Syntax
def get_signature_hash_mark(signature_index: int) -> int: ...
Default Value
0
Remarks
Returns the hash mark attribute of a signature.
Check this property to get a hash mark of a signature.
The signature_index parameter specifies the index of the item in the array. The size of the array is controlled by the signature_count property.
This property is read-only.
signature_key_expiration_time Property
The number of seconds after which the signed key will expire.
Syntax
def get_signature_key_expiration_time(signature_index: int) -> int: ...
Default Value
0
Remarks
The number of seconds after which the signed key will expire.
The signature_index parameter specifies the index of the item in the array. The size of the array is controlled by the signature_count property.
This property is read-only.
signature_key_flags Property
Returns the key flags included in the signature.
Syntax
def get_signature_key_flags(signature_index: int) -> int: ...
Default Value
0
Remarks
Returns the key flags included in the signature.
Use this property to retrieve the key flags stored in the key signature.
The signature_index parameter specifies the index of the item in the array. The size of the array is controlled by the signature_count property.
This property is read-only.
signature_legacy_format Property
Indicates whether signature uses PGP 2.
Syntax
def get_signature_legacy_format(signature_index: int) -> bool: ...
Default Value
FALSE
Remarks
Indicates whether signature uses PGP 2.6.x-compatible packet format.
The signature is fully compatible with the 'old' format only if it has version 3, uses MD5 hash algorithm, RSA public key algorithm, and its key length is not greater than 1024 bits.
The signature_index parameter specifies the index of the item in the array. The size of the array is controlled by the signature_count property.
This property is read-only.
signature_policy_url Property
Contains the URL of the signature policy.
Syntax
def get_signature_policy_url(signature_index: int) -> str: ...
Default Value
""
Remarks
Contains the URL of the signature policy.
The signature_index parameter specifies the index of the item in the array. The size of the array is controlled by the signature_count property.
This property is read-only.
signature_preferred_algorithms Property
Contains a list of algorithms preferred by the signed key holder.
Syntax
def get_signature_preferred_algorithms(signature_index: int) -> str: ...
Default Value
""
Remarks
Contains a list of algorithms preferred by the signed key holder.
The signature_index parameter specifies the index of the item in the array. The size of the array is controlled by the signature_count property.
This property is read-only.
signature_primary_user_id Property
Indicates whether the UserID covered by the signature is the main user id for this key.
Syntax
def get_signature_primary_user_id(signature_index: int) -> bool: ...
Default Value
FALSE
Remarks
Indicates whether the UserID covered by the signature is the main user id for this key.
The signature_index parameter specifies the index of the item in the array. The size of the array is controlled by the signature_count property.
This property is read-only.
signature_reason_for_revocation Property
Describes the reason why the key or the certificate was revoked.
Syntax
def get_signature_reason_for_revocation(signature_index: int) -> str: ...
Default Value
""
Remarks
Describes the reason why the key or the certificate was revoked.
The signature_index parameter specifies the index of the item in the array. The size of the array is controlled by the signature_count property.
This property is read-only.
signature_revocable Property
Specifies whether the signature can be revoked.
Syntax
def get_signature_revocable(signature_index: int) -> bool: ...
Default Value
FALSE
Remarks
Specifies whether the signature can be revoked.
The signature_index parameter specifies the index of the item in the array. The size of the array is controlled by the signature_count property.
This property is read-only.
signature_revocation Property
Indicates whether or not the signature is a revocation signature.
Syntax
def get_signature_revocation(signature_index: int) -> bool: ...
Default Value
FALSE
Remarks
Indicates whether or not the signature is a revocation signature.
The signature_index parameter specifies the index of the item in the array. The size of the array is controlled by the signature_count property.
This property is read-only.
signature_signature_class Property
Indicates the signature class.
Syntax
def get_signature_signature_class(signature_index: int) -> int: ...
Default Value
0
Remarks
Indicates the signature class.
pscDocument | 0 | Signature over binary file |
pscTextDocument | 1 | Signature over text |
pscStandalone | 2 | A standalone signature |
pscUIDGeneric | 3 | User certification signature |
pscUIDPersona | 4 | User certification signature (persona) |
pscUIDCasual | 5 | User certification signature (casual) |
pscUIDPositive | 6 | User certification signature (positive) |
pscSubkeyBinding | 7 | Subkey binding signature |
pscPrimaryKeyBinding | 8 | Primary key binding signature |
pscDirectKey | 9 | Direct signature over a public key |
pscKeyRevocation | 10 | Key revocation |
pscSubkeyRevocation | 11 | Subkey revocation |
pscCertRevocation | 12 | User revocation |
pscTimestamp | 13 | Timestamp signature |
pscThirdParty | 14 | Third-party signature |
pscNotSpecified | 15 | Signature type not provided |
The signature_index parameter specifies the index of the item in the array. The size of the array is controlled by the signature_count property.
This property is read-only.
signature_signer_key_id Property
Indicates the KeyID of the signing key.
Syntax
def get_signature_signer_key_id(signature_index: int) -> str: ...
Default Value
""
Remarks
Indicates the KeyID of the signing key.
The signature_index parameter specifies the index of the item in the array. The size of the array is controlled by the signature_count property.
This property is read-only.
signature_signer_user_id Property
Indicates the UserID associated with the signing key.
Syntax
def get_signature_signer_user_id(signature_index: int) -> str: ...
Default Value
""
Remarks
Indicates the UserID associated with the signing key.
The signature_index parameter specifies the index of the item in the array. The size of the array is controlled by the signature_count property.
This property is read-only.
signature_strictly_valid Property
Returns True if this signature is valid in a strict way (no compatibility relaxations).
Syntax
def get_signature_strictly_valid(signature_index: int) -> bool: ...
Default Value
FALSE
Remarks
Returns True if this signature is valid in a strict way (no compatibility relaxations).
The signature_index parameter specifies the index of the item in the array. The size of the array is controlled by the signature_count property.
This property is read-only.
signature_target Property
Indicates the KeyID or Username of the target key or user.
Syntax
def get_signature_target(signature_index: int) -> str: ...
Default Value
""
Remarks
Indicates the KeyID or Username of the target key or user.
The signature_index parameter specifies the index of the item in the array. The size of the array is controlled by the signature_count property.
This property is read-only.
signature_text_signature Property
Indicates whether or not the signature is made over a text document.
Syntax
def get_signature_text_signature(signature_index: int) -> bool: ...
Default Value
FALSE
Remarks
Indicates whether or not the signature is made over a text document.
The signature_index parameter specifies the index of the item in the array. The size of the array is controlled by the signature_count property.
This property is read-only.
signature_trust_amount Property
Specifies the amount of trust assigned by this signature.
Syntax
def get_signature_trust_amount(signature_index: int) -> int: ...
Default Value
0
Remarks
Specifies the amount of trust assigned by this signature.
Specifies the amount of trust, in range 0-255, interpreted such that values less than 120 indicate partial trust and values of 120 or greater indicate complete trust.
The signature_index parameter specifies the index of the item in the array. The size of the array is controlled by the signature_count property.
This property is read-only.
signature_trust_level Property
The trust level assigned by this signature.
Syntax
def get_signature_trust_level(signature_index: int) -> int: ...
Default Value
0
Remarks
The trust level assigned by this signature.
Level 1 means that the signed key is asserted to be a valid trusted introducer, with the 2nd octet of the body specifying the degree of trust. Level n means that the signed key is asserted to be trusted to issue level (n-1)-trust signatures.
The signature_index parameter specifies the index of the item in the array. The size of the array is controlled by the signature_count property.
This property is read-only.
signature_validated Property
Whether the signature has been validated.
Syntax
def get_signature_validated(signature_index: int) -> bool: ...
Default Value
FALSE
Remarks
Whether the signature has been validated.
The signature_index parameter specifies the index of the item in the array. The size of the array is controlled by the signature_count property.
This property is read-only.
signature_validity Property
Provides the validity status of the signature if the signature has been validated.
Syntax
def get_signature_validity(signature_index: int) -> int: ...
Default Value
0
Remarks
Provides the validity status of the signature if the signature has been validated.
svtValid | 0 | The signature is valid |
svtUnknown | 1 | Signature validity is unknown |
svtCorrupted | 2 | The signature is corrupted |
svtSignerNotFound | 3 | Failed to acquire the signing certificate. The signature cannot be validated. |
svtFailure | 4 | General failure |
svtReferenceCorrupted | 5 | Reference corrupted (XML-based signatures only) |
The signature_index parameter specifies the index of the item in the array. The size of the array is controlled by the signature_count property.
This property is read-only.
signature_version Property
Indicates the signature version.
Syntax
def get_signature_version(signature_index: int) -> int: ...
Default Value
0
Remarks
Indicates the signature version.
RFC 4880 defines two versions for PGP signatures: 3 and 4.
The signature_index parameter specifies the index of the item in the array. The size of the array is controlled by the signature_count property.
This property is read-only.
verifying_key_count Property
The number of records in the VerifyingKey arrays.
Syntax
def get_verifying_key_count() -> int: ... def set_verifying_key_count(value: int) -> None: ...
verifying_key_count = property(get_verifying_key_count, set_verifying_key_count)
Default Value
0
Remarks
This property controls the size of the following arrays:
The array indices start at 0 and end at verifying_key_count - 1.verifying_key_handle Property
Allows to get or set a 'handle', a unique identifier of the underlying property object.
Syntax
def get_verifying_key_handle(verifying_key_index: int) -> int: ... def set_verifying_key_handle(verifying_key_index: int, value: int) -> None: ...
Default Value
0
Remarks
Allows to get or set a 'handle', a unique identifier of the underlying property object. Use this property to assign objects of the same type in a quicker manner, without copying them fieldwise.
When you pass a handle of one object to another, the source object is copied to the destination rather than assigned. It is safe to get rid of the original object
after such operation.
pdfSigner.setSigningCertHandle(certMgr.getCertHandle());
The verifying_key_index parameter specifies the index of the item in the array. The size of the array is controlled by the verifying_key_count property.
verifying_key_key_fp Property
The 20-byte fingerprint (hash value) of this key.
Syntax
def get_verifying_key_key_fp(verifying_key_index: int) -> str: ...
Default Value
""
Remarks
The 20-byte fingerprint (hash value) of this key.
KeyFP could be used to distinguish two keys with the same KeyID.
The verifying_key_index parameter specifies the index of the item in the array. The size of the array is controlled by the verifying_key_count property.
This property is read-only.
verifying_key_key_id Property
Contains a 8-byte key identifier.
Syntax
def get_verifying_key_key_id(verifying_key_index: int) -> str: ...
Default Value
""
Remarks
Contains a 8-byte key identifier.
It is quite rare that IDs of two keys collide. If that happens, their fingerprints (KeyFP) can be used for distinguish between the keys. Please note that many PGP implementations show only 4 lowest bytes of the KeyID to the user.
The verifying_key_index parameter specifies the index of the item in the array. The size of the array is controlled by the verifying_key_count property.
This property is read-only.
verifying_key_username Property
Specifies the name of the user bound to this key.
Syntax
def get_verifying_key_username(verifying_key_index: int) -> str: ...
Default Value
""
Remarks
Specifies the name of the user bound to this key.
The PGP username is typically represented with a full name and an email address, but generally can be any non-empty string.
The verifying_key_index parameter specifies the index of the item in the array. The size of the array is controlled by the verifying_key_count property.
This property is read-only.
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.
decrypt_and_verify Method
Decrypts and verifies a protected message.
Syntax
def decrypt_and_verify() -> None: ...
Remarks
Use this method to unprotect a PGP message contained in a byte array (input_bytes), in a file (input_file) or in a stream (input_stream). The method writes the decrypted message to a byte array (output_bytes), to a file (output_file) or to a stream (output_stream).
do_action Method
Performs an additional action.
Syntax
def do_action(action_id: str, action_params: str) -> str: ...
Remarks
do_action is a generic method available in every class. It is used to perform an additional action introduced after the product major release. The list of actions is not fixed, and may be flexibly extended over time.
The unique identifier (case insensitive) of the action is provided in the ActionID parameter.
ActionParams contains the value of a single parameter, or a list of multiple parameters for the action in the form of PARAM1=VALUE1;PARAM2=VALUE2;....
Common ActionIDs:
Action | Parameters | Returned value | Description |
ResetTrustedListCache | none | none | Clears the cached list of trusted lists. |
ResetCertificateCache | none | none | Clears the cached certificates. |
ResetCRLCache | none | none | Clears the cached CRLs. |
ResetOCSPResponseCache | none | none | Clears the cached OCSP responses. |
reset Method
Resets the class settings.
Syntax
def reset() -> None: ...
Remarks
reset is a generic method available in every class.
verify_detached Method
Verifies a detached signature.
Syntax
def verify_detached() -> None: ...
Remarks
Use this method to verify a detached signature contained in a byte array (data_bytes), in a file (data_file) or in a stream (data_stream) over a message contained in a byte array (input_bytes), in a file (input_file) or in a stream (input_stream).
on_encryption_info Event
Reports early information on encryption parameters.
Syntax
class PGPReaderEncryptionInfoEventParams(object): @property def key_i_ds() -> str: ... @property def encrypted_protection() -> int: ... @property def passphrase_used() -> bool: ... # In class PGPReader: @property def on_encryption_info() -> Callable[[PGPReaderEncryptionInfoEventParams], None]: ... @on_encryption_info.setter def on_encryption_info(event_hook: Callable[[PGPReaderEncryptionInfoEventParams], None]) -> None: ...
Remarks
The class fires this event to report early encryption information. Use this event to find out what encryption type is used, and to provide appropriate decryption material (the secret keys or the password) via decrypting_keys or passphrase properties.
KeyIDs contains the IDs of the keys that can be used to decrypt the data. PassphraseUsed shows if the message can also be decrypted with a passphrase. Both can be set at the same time, indicating that each of the decryption routes can be taken.
EncryptedProtection parameter specifies whether the message includes a modification detection record.
on_error Event
Information about errors during PGP decryption/verification.
Syntax
class PGPReaderErrorEventParams(object): @property def error_code() -> int: ... @property def description() -> str: ... # In class PGPReader: @property def on_error() -> Callable[[PGPReaderErrorEventParams], None]: ... @on_error.setter def on_error(event_hook: Callable[[PGPReaderErrorEventParams], None]) -> None: ...
Remarks
The event is fired in case of exceptional conditions during decryption/verification of protected data.
ErrorCode contains an error code and Description contains a textual description of the error.
on_external_decrypt Event
Handles remote or external decryption.
Syntax
class PGPReaderExternalDecryptEventParams(object): @property def operation_id() -> str: ... @property def algorithm() -> str: ... @property def pars() -> str: ... @property def encrypted_data() -> str: ... @property def data() -> str: ... @data.setter def data(value) -> None: ... # In class PGPReader: @property def on_external_decrypt() -> Callable[[PGPReaderExternalDecryptEventParams], None]: ... @on_external_decrypt.setter def on_external_decrypt(event_hook: Callable[[PGPReaderExternalDecryptEventParams], None]) -> None: ...
Remarks
Assign a handler to this event if you need to delegate a low-level decryption operation to an external, remote, or custom decryption engine. The handler receives an encrypted value in the EncryptedData parameter, and is expected to decrypt it and place the decrypted value into the Data parameter.
OperationId provides a comment about the operation and its origin. It depends on the exact class being used, and may be empty. Algorithm specifies the encryption algorithm being used, and Pars contains algorithm-dependent parameters.
The class uses base16 (hex) encoding for the EncryptedData, Data, and Pars parameters. If your decryption engine uses a different input and output encoding, you may need to decode and/or encode the data before and/or after the decryption.
Sample data encoded in base16: a0dee2a0382afbb09120ffa7ccd8a152 - lower case base16 A0DEE2A0382AFBB09120FFA7CCD8A152 - upper case base16
on_file_extraction_finish Event
Reports the ending of file extraction process.
Syntax
class PGPReaderFileExtractionFinishEventParams(object): @property def file_name() -> str: ... @property def timestamp() -> str: ... # In class PGPReader: @property def on_file_extraction_finish() -> Callable[[PGPReaderFileExtractionFinishEventParams], None]: ... @on_file_extraction_finish.setter def on_file_extraction_finish(event_hook: Callable[[PGPReaderFileExtractionFinishEventParams], None]) -> None: ...
Remarks
This event informs about the ending of extraction of the next available file. FileName parameter indicates the original file name, and the Timestamp its last modification time.
In the handler, the user can take away the output stream or store the file data from output_bytes.
on_file_extraction_start Event
Reports the beginning of file extraction process.
Syntax
class PGPReaderFileExtractionStartEventParams(object): @property def file_name() -> str: ... @property def timestamp() -> str: ... @property def skip() -> bool: ... @skip.setter def skip(value) -> None: ... # In class PGPReader: @property def on_file_extraction_start() -> Callable[[PGPReaderFileExtractionStartEventParams], None]: ... @on_file_extraction_start.setter def on_file_extraction_start(event_hook: Callable[[PGPReaderFileExtractionStartEventParams], None]) -> None: ...
Remarks
This event informs about the beginning of extraction of the next available file. A PGP message may contain more than one file. FileName parameter indicates the original file name, and the Timestamp its last modification time.
The user should provide an output filename in output_file or a stream in output_stream. If none of them is provided, the extracted file will be placed to output_bytes. After the file is extracted, on_file_extraction_finish event is fired.
on_key_passphrase_needed Event
Requests a key protection password from the application.
Syntax
class PGPReaderKeyPassphraseNeededEventParams(object): @property def key_id() -> str: ... @property def user_id() -> str: ... @property def main_key() -> bool: ... @property def passphrase() -> str: ... @passphrase.setter def passphrase(value) -> None: ... @property def skip() -> bool: ... @skip.setter def skip(value) -> None: ... # In class PGPReader: @property def on_key_passphrase_needed() -> Callable[[PGPReaderKeyPassphraseNeededEventParams], None]: ... @on_key_passphrase_needed.setter def on_key_passphrase_needed(event_hook: Callable[[PGPReaderKeyPassphraseNeededEventParams], None]) -> None: ...
Remarks
The class fires this event to request a secret key passphrase from the application. Note that this event asks for a key protection passphrase rather than a message protection passphrase (which is requested via on_passphrase_needed). The class fires it when it has found a suitable decryption secret key in the keyring, and attempts to use it to decrypt the data.
If the data is encrypted with multiple keys, this event is called for each key in a loop until the password for at least one key is provided correctly. KeyID specifies the key for which the password is requested, and UserID identifies its user. MainKey tells whether the key is a master key or a subkey.
The handler should provide password via the Passphrase parameter, or set Skip to True to skip this key.
For each key KeyPassphraseNeeded is called in a loop until the correct password is provided or the maximum number of password attempts reached.
on_multiple_files_found Event
Fires if the PGP message is recognized to contain multiple files.
Syntax
class PGPReaderMultipleFilesFoundEventParams(object): @property def tar_file_name() -> str: ... @property def proceed() -> bool: ... @proceed.setter def proceed(value) -> None: ... # In class PGPReader: @property def on_multiple_files_found() -> Callable[[PGPReaderMultipleFilesFoundEventParams], None]: ... @on_multiple_files_found.setter def on_multiple_files_found(event_hook: Callable[[PGPReaderMultipleFilesFoundEventParams], None]) -> None: ...
Remarks
The class fires this event to report that there is more than one file in the PGP message.
The TarFileName specifies the name of the TAR file containing the files. Tune up Proceed to go ahead or stop the processing.
on_notification Event
This event notifies the application about an underlying control flow event.
Syntax
class PGPReaderNotificationEventParams(object): @property def event_id() -> str: ... @property def event_param() -> str: ... # In class PGPReader: @property def on_notification() -> Callable[[PGPReaderNotificationEventParams], None]: ... @on_notification.setter def on_notification(event_hook: Callable[[PGPReaderNotificationEventParams], None]) -> None: ...
Remarks
The class fires this event to let the application know about some event, occurrence, or milestone in the class. For example, it may fire to report completion of the document processing. The list of events being reported is not fixed, and may be flexibly extended over time.
The unique identifier of the event is provided in the EventID parameter. EventParam contains any parameters accompanying the occurrence. Depending on the type of the class, the exact action it is performing, or the document being processed, one or both may be omitted.
on_passphrase_needed Event
Requests a data protection password from the application.
Syntax
class PGPReaderPassphraseNeededEventParams(object): @property def passphrase() -> str: ... @passphrase.setter def passphrase(value) -> None: ... @property def skip() -> bool: ... @skip.setter def skip(value) -> None: ... # In class PGPReader: @property def on_passphrase_needed() -> Callable[[PGPReaderPassphraseNeededEventParams], None]: ... @on_passphrase_needed.setter def on_passphrase_needed(event_hook: Callable[[PGPReaderPassphraseNeededEventParams], None]) -> None: ...
Remarks
The class fires this event to request a decryption password. It is only fired if the data can be decrypted without a key.
The event is fired in a loop until the correct password is passed or the number of password attempts is exceeded.
on_progress Event
Reports the progress of the decryption operation.
Syntax
class PGPReaderProgressEventParams(object): @property def current() -> int: ... @property def total() -> int: ... @property def cancel() -> bool: ... @cancel.setter def cancel(value) -> None: ... # In class PGPReader: @property def on_progress() -> Callable[[PGPReaderProgressEventParams], None]: ... @on_progress.setter def on_progress(event_hook: Callable[[PGPReaderProgressEventParams], None]) -> None: ...
Remarks
The class fires this event repeatedly to report the progress of the file extraction operation.
Current indicates the amount of processed data in bytes, and Total is the total number of bytes to be processed. Use Cancel to terminate the extraction process.
on_signed Event
Notifies the application about a signed message.
Syntax
class PGPReaderSignedEventParams(object): @property def key_i_ds() -> str: ... @property def signature_type() -> int: ... # In class PGPReader: @property def on_signed() -> Callable[[PGPReaderSignedEventParams], None]: ... @on_signed.setter def on_signed(event_hook: Callable[[PGPReaderSignedEventParams], None]) -> None: ...
Remarks
The class fires this event when it identifies a signed message to allow the application to prepare the component for verification.
Use the KeyIDs parameter to identify keys used that were used to sign the message, and make sure they are available in the verifying_keys list.
SignatureType indicates the signature type:
pstNormal | 0 | A traditional signature, compatible (algorithm permitting) with PGP 2.6.x |
pstOnePass | 1 | A newer one-pass signature |
pstDetached | 2 | A detached signature, i.e., a signature contained in a separate file from the data it covers |
pstCleartext | 3 | A signature made over textual data and appended to it |
PGPReader 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.PGPReader Config Settings
Base Config Settings
You can switch this property off to improve performance if your project only uses known, good private keys.
Supported values are:
off | No caching (default) | |
local | Local caching | |
global | Global caching |
This setting only applies to sessions negotiated with TLS version 1.3.
Supported values are:
file | File | |
console | Console | |
systemlog | System Log (supported for Android only) | |
debugger | Debugger (supported for VCL for Windows and .Net) |
Supported values are:
time | Current time | |
level | Level | |
package | Package name | |
module | Module name | |
class | Class name | |
method | Method name | |
threadid | Thread Id | |
contenttype | Content type | |
content | Content | |
all | All details |
Supported filter names are:
exclude-package | Exclude a package specified in the value | |
exclude-module | Exclude a module specified in the value | |
exclude-class | Exclude a class specified in the value | |
exclude-method | Exclude a method specified in the value | |
include-package | Include a package specified in the value | |
include-module | Include a module specified in the value | |
include-class | Include a class specified in the value | |
include-method | Include a method specified in the value |
none | No flush (caching only) | |
immediate | Immediate flush (real-time logging) | |
maxcount | Flush cached entries upon reaching LogMaxEventCount entries in the cache. |
Supported values are:
none | None (by default) | |
fatal | Severe errors that cause premature termination. | |
error | Other runtime errors or unexpected conditions. | |
warning | Use of deprecated APIs, poor use of API, 'almost' errors, other runtime situations that are undesirable or unexpected, but not necessarily "wrong". | |
info | Interesting runtime events (startup/shutdown). | |
debug | Detailed information on flow of through the system. | |
trace | More detailed information. |
The default value of this setting is 100.
none | No rotation | |
deleteolder | Delete older entries from the cache upon reaching LogMaxEventCount | |
keepolder | Keep older entries in the cache upon reaching LogMaxEventCount (newer entries are discarded) |
Supported Values:
certificate | Enables caching of certificates. |
crl | Enables caching of Certificate Revocation Lists (CRLs). |
ocsp | Enables caching of OCSP (Online Certificate Status Protocol) responses. |
Example (default value):
PKICache=certificate,crl,ocsp
In this example, the component caches certificates, CRLs, and OCSP responses.
The default value is an empty string - no cached PKI data is stored on disk.
Example:
PKICachePath=C:\Temp\cache
In this example, the cached PKI data is stored in the C:\Temp\cache directory.
Supported values are:
none | No static DNS rules (default) | |
local | Local static DNS rules | |
global | Global static DNS rules |
This setting only applies to certificates originating from a Windows system store.
The property accepts comma-separated values where the first descriptor name is used when the OID is mapped, and subsequent values act as aliases for parsing.
Syntax:
Config("XMLRDNDescriptorName[OID]=PrimaryName,Alias1,Alias2");
Where:
OID: The Object Identifier from the certificate's IssuerRDN or SubjectRDN that you want to map.
PrimaryName: The main descriptor name used in the XML signature when the OID is encountered.
Alias1, Alias2, ...: Optional alternative names recognized during parsing.
Usage Examples:
Map OID 2.5.4.5 to SERIALNUMBER:
Config("XMLRDNDescriptorName[2.5.4.5]=SERIALNUMBER");
Map OID 1.2.840.113549.1.9.1 to E, with aliases EMAIL and EMAILADDRESS:
Config("XMLRDNDescriptorName[1.2.840.113549.1.9.1]=E,EMAIL,EMAILADDRESS");
PGPReader Errors
PGPReader Errors
1048577 | Invalid parameter (SB_ERROR_INVALID_PARAMETER) |
1048578 | Invalid configuration (SB_ERROR_INVALID_SETUP) |
1048579 | Invalid state (SB_ERROR_INVALID_STATE) |
1048580 | Invalid value (SB_ERROR_INVALID_VALUE) |
1048581 | Private key not found (SB_ERROR_NO_PRIVATE_KEY) |
1048582 | Cancelled by the user (SB_ERROR_CANCELLED_BY_USER) |
1048583 | The file was not found (SB_ERROR_NO_SUCH_FILE) |
1048584 | Unsupported feature or operation (SB_ERROR_UNSUPPORTED_FEATURE) |
1048585 | General error (SB_ERROR_GENERAL_ERROR) |
27262977 | The file was not found (SB_ERROR_PGP_FILE_NOT_EXISTS) |
27262978 | Invalid signing key (SB_ERROR_PGP_INVALID_KEY) |
27262980 | No secret key is available (SB_ERROR_PGP_NO_SECRET_KEY) |
27262982 | The operation is not supported on a subkey (SB_ERROR_PGP_OPERATION_ON_SUBKEY) |