PDFDecryptor Class

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The PDFDecryptor class decrypts PDF documents.

Syntax

PDFDecryptor

Remarks

PDFDecryptor decrypts PDF documents encrypted with passwords or certificates.

Property List


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

DecryptionCertificateBytesReturns raw certificate data in DER format.
DecryptionCertificateHandleAllows to get or set a 'handle', a unique identifier of the underlying property object.
DocumentInfoEncryptionAlgorithmThe symmetric algorithm used to encrypt the document.
DocumentInfoEncryptionTypeThe document encryption type.
DocumentInfoMetadataEncryptedIndicates if the document metadata is encrypted.
DocumentInfoPermissionsContains the document permissions associated with the encryption.
ExternalCryptoAsyncDocumentIDSpecifies an optional document ID for SignAsyncBegin() and SignAsyncEnd() calls.
ExternalCryptoCustomParamsCustom parameters to be passed to the signing service (uninterpreted).
ExternalCryptoDataAdditional data to be included in the async state and mirrored back by the requestor.
ExternalCryptoExternalHashCalculationSpecifies whether the message hash is to be calculated at the external endpoint.
ExternalCryptoHashAlgorithmSpecifies the request's signature hash algorithm.
ExternalCryptoKeyIDThe ID of the pre-shared key used for DC request authentication.
ExternalCryptoKeySecretThe pre-shared key used for DC request authentication.
ExternalCryptoMethodSpecifies the asynchronous signing method.
ExternalCryptoModeSpecifies the external cryptography mode.
ExternalCryptoPublicKeyAlgorithmProvide public key algorithm here if the certificate is not available on the pre-signing stage.
FIPSModeReserved.
InputBytesUse this property to pass the input to class in the byte array form.
InputFileThe PDF file to be decrypted.
OutputBytesUse this property to read the output the class object has produced.
OutputFileThe file to save the decrypted document to.
PasswordThe decryption password.

Method List


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

ConfigSets or retrieves a configuration setting.
DecryptDecrypts a PDF document.
DoActionPerforms an additional action.

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.

DocumentLoadedThis event is fired when the document has been loaded into memory.
EncryptedNotifies the application that the document is encrypted and provides recipient certificate details if asymmetric encryption was used to encrypt the document.
ErrorInformation about errors during signing/validation.
ExternalDecryptHandles remote or external decryption.
NotificationThis event notifies the application about an underlying control flow event.

Config Settings


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

EncryptionHandlerNameSpecifies the custom security handler PDF-name.
HardenedKeyGenerationSpecifies if hardened Key generation should be used.
RC4KeyBitsSpecifies the number of key bits used for RC4 algorithm.
TempPathLocation where the temporary files are stored.
CheckKeyIntegrityBeforeUseEnables or disable private key integrity check before use.
CookieCachingSpecifies whether a cookie cache should be used for HTTP(S) transports.
CookiesGets or sets local cookies for the class.
DefDeriveKeyIterationsSpecifies the default key derivation algorithm iteration count.
EnableClientSideSSLFFDHEEnables or disables finite field DHE key exchange support in TLS clients.
GlobalCookiesGets or sets global cookies for all the HTTP transports.
HttpUserAgentSpecifies the user agent name to be used by all HTTP clients.
LogDestinationSpecifies the debug log destination.
LogDetailsSpecifies the debug log details to dump.
LogFileSpecifies the debug log filename.
LogFiltersSpecifies the debug log filters.
LogFlushModeSpecifies the log flush mode.
LogLevelSpecifies the debug log level.
LogMaxEventCountSpecifies the maximum number of events to cache before further action is taken.
LogRotationModeSpecifies the log rotation mode.
MaxASN1BufferLengthSpecifies the maximal allowed length for ASN.1 primitive tag data.
MaxASN1TreeDepthSpecifies the maximal depth for processed ASN.1 trees.
OCSPHashAlgorithmSpecifies the hash algorithm to be used to identify certificates in OCSP requests.
StaticDNSSpecifies whether static DNS rules should be used.
StaticIPAddress[domain]Gets or sets an IP address for the specified domain name.
StaticIPAddressesGets or sets all the static DNS rules.
TagAllows to store any custom data.
TLSSessionGroupSpecifies the group name of TLS sessions to be used for session resumption.
TLSSessionLifetimeSpecifies lifetime in seconds of the cached TLS session.
TLSSessionPurgeIntervalSpecifies how often the session cache should remove the expired TLS sessions.
UseOwnDNSResolverSpecifies whether the client classes should use own DNS resolver.
UseSharedSystemStoragesSpecifies whether the validation engine should use a global per-process copy of the system certificate stores.
UseSystemOAEPAndPSSEnforces or disables the use of system-driven RSA OAEP and PSS computations.
UseSystemRandomEnables or disables the use of the OS PRNG.

DecryptionCertificateBytes Property (PDFDecryptor Class)

Returns raw certificate data in DER format.

Syntax

ANSI (Cross Platform)
int GetDecryptionCertificateBytes(char* &lpDecryptionCertificateBytes, int &lenDecryptionCertificateBytes);

Unicode (Windows)
INT GetDecryptionCertificateBytes(LPSTR &lpDecryptionCertificateBytes, INT &lenDecryptionCertificateBytes);
int secureblackbox_pdfdecryptor_getdecryptioncertificatebytes(void* lpObj, char** lpDecryptionCertificateBytes, int* lenDecryptionCertificateBytes);
QByteArray GetDecryptionCertificateBytes();

Remarks

Returns raw certificate data in DER format.

This property is read-only and not available at design time.

Data Type

Byte Array

DecryptionCertificateHandle Property (PDFDecryptor Class)

Allows to get or set a 'handle', a unique identifier of the underlying property object.

Syntax

ANSI (Cross Platform)
int64 GetDecryptionCertificateHandle();
int SetDecryptionCertificateHandle(int64 lDecryptionCertificateHandle); Unicode (Windows) LONG64 GetDecryptionCertificateHandle();
INT SetDecryptionCertificateHandle(LONG64 lDecryptionCertificateHandle);
int64 secureblackbox_pdfdecryptor_getdecryptioncertificatehandle(void* lpObj);
int secureblackbox_pdfdecryptor_setdecryptioncertificatehandle(void* lpObj, int64 lDecryptionCertificateHandle);
qint64 GetDecryptionCertificateHandle();
int SetDecryptionCertificateHandle(qint64 lDecryptionCertificateHandle);

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());

This property is not available at design time.

Data Type

Long64

DocumentInfoEncryptionAlgorithm Property (PDFDecryptor Class)

The symmetric algorithm used to encrypt the document.

Syntax

ANSI (Cross Platform)
char* GetDocumentInfoEncryptionAlgorithm();

Unicode (Windows)
LPWSTR GetDocumentInfoEncryptionAlgorithm();
char* secureblackbox_pdfdecryptor_getdocumentinfoencryptionalgorithm(void* lpObj);
QString GetDocumentInfoEncryptionAlgorithm();

Default Value

""

Remarks

The symmetric algorithm used to encrypt the document.

This property contains the encryption algorithm that was used to encrypt the PDF document.

Supported values:

SB_SYMMETRIC_ALGORITHM_RC4RC4
SB_SYMMETRIC_ALGORITHM_AES128AES128
SB_SYMMETRIC_ALGORITHM_AES256AES256

This property is read-only and not available at design time.

Data Type

String

DocumentInfoEncryptionType Property (PDFDecryptor Class)

The document encryption type.

Syntax

ANSI (Cross Platform)
int GetDocumentInfoEncryptionType();

Unicode (Windows)
INT GetDocumentInfoEncryptionType();

Possible Values

PET_NONE(0), 
PET_PASSWORD(1),
PET_CERTIFICATE(2)
int secureblackbox_pdfdecryptor_getdocumentinfoencryptiontype(void* lpObj);
int GetDocumentInfoEncryptionType();

Default Value

1

Remarks

The document encryption type.

This property indicates the kind of encryption that was used to encrypt the PDF document.

Supported values:

petPassword1The document is encrypted with a password.
petCertificate2The document is encrypted with a certificate (or many certificates).

This property is read-only and not available at design time.

Data Type

Integer

DocumentInfoMetadataEncrypted Property (PDFDecryptor Class)

Indicates if the document metadata is encrypted.

Syntax

ANSI (Cross Platform)
int GetDocumentInfoMetadataEncrypted();

Unicode (Windows)
BOOL GetDocumentInfoMetadataEncrypted();
int secureblackbox_pdfdecryptor_getdocumentinfometadataencrypted(void* lpObj);
bool GetDocumentInfoMetadataEncrypted();

Default Value

TRUE

Remarks

Indicates if the document metadata is encrypted.

Use this property to check if document metadata is encrypted.

Metadata contains additional information about document such as its name and author.

This property is read-only and not available at design time.

Data Type

Boolean

DocumentInfoPermissions Property (PDFDecryptor Class)

Contains the document permissions associated with the encryption.

Syntax

ANSI (Cross Platform)
int GetDocumentInfoPermissions();

Unicode (Windows)
INT GetDocumentInfoPermissions();
int secureblackbox_pdfdecryptor_getdocumentinfopermissions(void* lpObj);
int GetDocumentInfoPermissions();

Default Value

0

Remarks

Contains the document permissions associated with the encryption.

Use this property to check permissions protected by this encryption. PDF specification expects applications to comply with these permissions when handling encrypted documents. Contains a bit mask of the following flags:

pepAnnotations0x0001Annotating is allowed

pepAssemble0x0002Assembling a new document on the basis of the processed one is allowed

pepExtract0x0004Extraction/copying of the pictures and text from the document is allowed

pepExtractAcc0x0008Content extraction is allowed for accessibility purposes only

pepFillInForms0x0010Filling forms in is allowed

pepHighQualityPrint0x0020High quality printing is allowed

pepLowQualityPrint0x0040Low quality printing is allowed

pepModify0x0080Modifications are allowed

This property is read-only and not available at design time.

Data Type

Integer

ExternalCryptoAsyncDocumentID Property (PDFDecryptor Class)

Specifies an optional document ID for SignAsyncBegin() and SignAsyncEnd() calls.

Syntax

ANSI (Cross Platform)
char* GetExternalCryptoAsyncDocumentID();
int SetExternalCryptoAsyncDocumentID(const char* lpszExternalCryptoAsyncDocumentID); Unicode (Windows) LPWSTR GetExternalCryptoAsyncDocumentID();
INT SetExternalCryptoAsyncDocumentID(LPCWSTR lpszExternalCryptoAsyncDocumentID);
char* secureblackbox_pdfdecryptor_getexternalcryptoasyncdocumentid(void* lpObj);
int secureblackbox_pdfdecryptor_setexternalcryptoasyncdocumentid(void* lpObj, const char* lpszExternalCryptoAsyncDocumentID);
QString GetExternalCryptoAsyncDocumentID();
int SetExternalCryptoAsyncDocumentID(QString qsExternalCryptoAsyncDocumentID);

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 pre-signing (SignAsyncBegin) and completion (SignAsyncEnd) stages.

Data Type

String

ExternalCryptoCustomParams Property (PDFDecryptor Class)

Custom parameters to be passed to the signing service (uninterpreted).

Syntax

ANSI (Cross Platform)
char* GetExternalCryptoCustomParams();
int SetExternalCryptoCustomParams(const char* lpszExternalCryptoCustomParams); Unicode (Windows) LPWSTR GetExternalCryptoCustomParams();
INT SetExternalCryptoCustomParams(LPCWSTR lpszExternalCryptoCustomParams);
char* secureblackbox_pdfdecryptor_getexternalcryptocustomparams(void* lpObj);
int secureblackbox_pdfdecryptor_setexternalcryptocustomparams(void* lpObj, const char* lpszExternalCryptoCustomParams);
QString GetExternalCryptoCustomParams();
int SetExternalCryptoCustomParams(QString qsExternalCryptoCustomParams);

Default Value

""

Remarks

Custom parameters to be passed to the signing service (uninterpreted).

This property is not available at design time.

Data Type

String

ExternalCryptoData Property (PDFDecryptor Class)

Additional data to be included in the async state and mirrored back by the requestor.

Syntax

ANSI (Cross Platform)
char* GetExternalCryptoData();
int SetExternalCryptoData(const char* lpszExternalCryptoData); Unicode (Windows) LPWSTR GetExternalCryptoData();
INT SetExternalCryptoData(LPCWSTR lpszExternalCryptoData);
char* secureblackbox_pdfdecryptor_getexternalcryptodata(void* lpObj);
int secureblackbox_pdfdecryptor_setexternalcryptodata(void* lpObj, const char* lpszExternalCryptoData);
QString GetExternalCryptoData();
int SetExternalCryptoData(QString qsExternalCryptoData);

Default Value

""

Remarks

Additional data to be included in the async state and mirrored back by the requestor

This property is not available at design time.

Data Type

String

ExternalCryptoExternalHashCalculation Property (PDFDecryptor Class)

Specifies whether the message hash is to be calculated at the external endpoint.

Syntax

ANSI (Cross Platform)
int GetExternalCryptoExternalHashCalculation();
int SetExternalCryptoExternalHashCalculation(int bExternalCryptoExternalHashCalculation); Unicode (Windows) BOOL GetExternalCryptoExternalHashCalculation();
INT SetExternalCryptoExternalHashCalculation(BOOL bExternalCryptoExternalHashCalculation);
int secureblackbox_pdfdecryptor_getexternalcryptoexternalhashcalculation(void* lpObj);
int secureblackbox_pdfdecryptor_setexternalcryptoexternalhashcalculation(void* lpObj, int bExternalCryptoExternalHashCalculation);
bool GetExternalCryptoExternalHashCalculation();
int SetExternalCryptoExternalHashCalculation(bool bExternalCryptoExternalHashCalculation);

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 all components. In particular, components operating with larger objects (PDFSigner, CAdESSigner, XAdESSigner) do not support it.

Data Type

Boolean

ExternalCryptoHashAlgorithm Property (PDFDecryptor Class)

Specifies the request's signature hash algorithm.

Syntax

ANSI (Cross Platform)
char* GetExternalCryptoHashAlgorithm();
int SetExternalCryptoHashAlgorithm(const char* lpszExternalCryptoHashAlgorithm); Unicode (Windows) LPWSTR GetExternalCryptoHashAlgorithm();
INT SetExternalCryptoHashAlgorithm(LPCWSTR lpszExternalCryptoHashAlgorithm);
char* secureblackbox_pdfdecryptor_getexternalcryptohashalgorithm(void* lpObj);
int secureblackbox_pdfdecryptor_setexternalcryptohashalgorithm(void* lpObj, const char* lpszExternalCryptoHashAlgorithm);
QString GetExternalCryptoHashAlgorithm();
int SetExternalCryptoHashAlgorithm(QString qsExternalCryptoHashAlgorithm);

Default Value

"SHA256"

Remarks

Specifies the request's signature hash algorithm.

SB_HASH_ALGORITHM_SHA1SHA1
SB_HASH_ALGORITHM_SHA224SHA224
SB_HASH_ALGORITHM_SHA256SHA256
SB_HASH_ALGORITHM_SHA384SHA384
SB_HASH_ALGORITHM_SHA512SHA512
SB_HASH_ALGORITHM_MD2MD2
SB_HASH_ALGORITHM_MD4MD4
SB_HASH_ALGORITHM_MD5MD5
SB_HASH_ALGORITHM_RIPEMD160RIPEMD160
SB_HASH_ALGORITHM_CRC32CRC32
SB_HASH_ALGORITHM_SSL3SSL3
SB_HASH_ALGORITHM_GOST_R3411_1994GOST1994
SB_HASH_ALGORITHM_WHIRLPOOLWHIRLPOOL
SB_HASH_ALGORITHM_POLY1305POLY1305
SB_HASH_ALGORITHM_SHA3_224SHA3_224
SB_HASH_ALGORITHM_SHA3_256SHA3_256
SB_HASH_ALGORITHM_SHA3_384SHA3_384
SB_HASH_ALGORITHM_SHA3_512SHA3_512
SB_HASH_ALGORITHM_BLAKE2S_128BLAKE2S_128
SB_HASH_ALGORITHM_BLAKE2S_160BLAKE2S_160
SB_HASH_ALGORITHM_BLAKE2S_224BLAKE2S_224
SB_HASH_ALGORITHM_BLAKE2S_256BLAKE2S_256
SB_HASH_ALGORITHM_BLAKE2B_160BLAKE2B_160
SB_HASH_ALGORITHM_BLAKE2B_256BLAKE2B_256
SB_HASH_ALGORITHM_BLAKE2B_384BLAKE2B_384
SB_HASH_ALGORITHM_BLAKE2B_512BLAKE2B_512
SB_HASH_ALGORITHM_SHAKE_128SHAKE_128
SB_HASH_ALGORITHM_SHAKE_256SHAKE_256
SB_HASH_ALGORITHM_SHAKE_128_LENSHAKE_128_LEN
SB_HASH_ALGORITHM_SHAKE_256_LENSHAKE_256_LEN

Data Type

String

ExternalCryptoKeyID Property (PDFDecryptor Class)

The ID of the pre-shared key used for DC request authentication.

Syntax

ANSI (Cross Platform)
char* GetExternalCryptoKeyID();
int SetExternalCryptoKeyID(const char* lpszExternalCryptoKeyID); Unicode (Windows) LPWSTR GetExternalCryptoKeyID();
INT SetExternalCryptoKeyID(LPCWSTR lpszExternalCryptoKeyID);
char* secureblackbox_pdfdecryptor_getexternalcryptokeyid(void* lpObj);
int secureblackbox_pdfdecryptor_setexternalcryptokeyid(void* lpObj, const char* lpszExternalCryptoKeyID);
QString GetExternalCryptoKeyID();
int SetExternalCryptoKeyID(QString qsExternalCryptoKeyID);

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 extra protection layer for the protocol and diminishes the risk of private key becoming abused by foreign parties. Use this property to provide the pre-shared key identifier, and use ExternalCryptoKeySecret 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";

Data Type

String

ExternalCryptoKeySecret Property (PDFDecryptor Class)

The pre-shared key used for DC request authentication.

Syntax

ANSI (Cross Platform)
char* GetExternalCryptoKeySecret();
int SetExternalCryptoKeySecret(const char* lpszExternalCryptoKeySecret); Unicode (Windows) LPWSTR GetExternalCryptoKeySecret();
INT SetExternalCryptoKeySecret(LPCWSTR lpszExternalCryptoKeySecret);
char* secureblackbox_pdfdecryptor_getexternalcryptokeysecret(void* lpObj);
int secureblackbox_pdfdecryptor_setexternalcryptokeysecret(void* lpObj, const char* lpszExternalCryptoKeySecret);
QString GetExternalCryptoKeySecret();
int SetExternalCryptoKeySecret(QString qsExternalCryptoKeySecret);

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 ExternalCryptoKeyID topic.

Data Type

String

ExternalCryptoMethod Property (PDFDecryptor Class)

Specifies the asynchronous signing method.

Syntax

ANSI (Cross Platform)
int GetExternalCryptoMethod();
int SetExternalCryptoMethod(int iExternalCryptoMethod); Unicode (Windows) INT GetExternalCryptoMethod();
INT SetExternalCryptoMethod(INT iExternalCryptoMethod);

Possible Values

ASMD_PKCS1(0), 
ASMD_PKCS7(1)
int secureblackbox_pdfdecryptor_getexternalcryptomethod(void* lpObj);
int secureblackbox_pdfdecryptor_setexternalcryptomethod(void* lpObj, int iExternalCryptoMethod);
int GetExternalCryptoMethod();
int SetExternalCryptoMethod(int iExternalCryptoMethod);

Default Value

0

Remarks

Specifies the asynchronous signing method. This is typically defined by the DC server capabilities and setup.

Available options:

asmdPKCS10
asmdPKCS71

Data Type

Integer

ExternalCryptoMode Property (PDFDecryptor Class)

Specifies the external cryptography mode.

Syntax

ANSI (Cross Platform)
int GetExternalCryptoMode();
int SetExternalCryptoMode(int iExternalCryptoMode); Unicode (Windows) INT GetExternalCryptoMode();
INT SetExternalCryptoMode(INT iExternalCryptoMode);

Possible Values

ECM_DEFAULT(0), 
ECM_DISABLED(1),
ECM_GENERIC(2),
ECM_DCAUTH(3),
ECM_DCAUTH_JSON(4)
int secureblackbox_pdfdecryptor_getexternalcryptomode(void* lpObj);
int secureblackbox_pdfdecryptor_setexternalcryptomode(void* lpObj, int iExternalCryptoMode);
int GetExternalCryptoMode();
int SetExternalCryptoMode(int iExternalCryptoMode);

Default Value

0

Remarks

Specifies the external cryptography mode.

Available options:

ecmDefaultThe default value (0)
ecmDisabledDo not use DC or external signing (1)
ecmGenericGeneric external signing with OnExternalSign event (2)
ecmDCAuthDCAuth signing (3)
ecmDCAuthJSONDCAuth signing in JSON format (4)

This property is not available at design time.

Data Type

Integer

ExternalCryptoPublicKeyAlgorithm Property (PDFDecryptor Class)

Provide public key algorithm here if the certificate is not available on the pre-signing stage.

Syntax

ANSI (Cross Platform)
char* GetExternalCryptoPublicKeyAlgorithm();
int SetExternalCryptoPublicKeyAlgorithm(const char* lpszExternalCryptoPublicKeyAlgorithm); Unicode (Windows) LPWSTR GetExternalCryptoPublicKeyAlgorithm();
INT SetExternalCryptoPublicKeyAlgorithm(LPCWSTR lpszExternalCryptoPublicKeyAlgorithm);
char* secureblackbox_pdfdecryptor_getexternalcryptopublickeyalgorithm(void* lpObj);
int secureblackbox_pdfdecryptor_setexternalcryptopublickeyalgorithm(void* lpObj, const char* lpszExternalCryptoPublicKeyAlgorithm);
QString GetExternalCryptoPublicKeyAlgorithm();
int SetExternalCryptoPublicKeyAlgorithm(QString qsExternalCryptoPublicKeyAlgorithm);

Default Value

""

Remarks

Provide public key algorithm here if the certificate is not available on the pre-signing stage.

SB_CERT_ALGORITHM_ID_RSA_ENCRYPTIONrsaEncryption
SB_CERT_ALGORITHM_MD2_RSA_ENCRYPTIONmd2withRSAEncryption
SB_CERT_ALGORITHM_MD5_RSA_ENCRYPTIONmd5withRSAEncryption
SB_CERT_ALGORITHM_SHA1_RSA_ENCRYPTIONsha1withRSAEncryption
SB_CERT_ALGORITHM_ID_DSAid-dsa
SB_CERT_ALGORITHM_ID_DSA_SHA1id-dsa-with-sha1
SB_CERT_ALGORITHM_DH_PUBLICdhpublicnumber
SB_CERT_ALGORITHM_SHA224_RSA_ENCRYPTIONsha224WithRSAEncryption
SB_CERT_ALGORITHM_SHA256_RSA_ENCRYPTIONsha256WithRSAEncryption
SB_CERT_ALGORITHM_SHA384_RSA_ENCRYPTIONsha384WithRSAEncryption
SB_CERT_ALGORITHM_SHA512_RSA_ENCRYPTIONsha512WithRSAEncryption
SB_CERT_ALGORITHM_ID_RSAPSSid-RSASSA-PSS
SB_CERT_ALGORITHM_ID_RSAOAEPid-RSAES-OAEP
SB_CERT_ALGORITHM_RSASIGNATURE_RIPEMD160ripemd160withRSA
SB_CERT_ALGORITHM_ID_ELGAMALelGamal
SB_CERT_ALGORITHM_SHA1_ECDSAecdsa-with-SHA1
SB_CERT_ALGORITHM_RECOMMENDED_ECDSAecdsa-recommended
SB_CERT_ALGORITHM_SHA224_ECDSAecdsa-with-SHA224
SB_CERT_ALGORITHM_SHA256_ECDSAecdsa-with-SHA256
SB_CERT_ALGORITHM_SHA384_ECDSAecdsa-with-SHA384
SB_CERT_ALGORITHM_SHA512_ECDSAecdsa-with-SHA512
SB_CERT_ALGORITHM_ECid-ecPublicKey
SB_CERT_ALGORITHM_SPECIFIED_ECDSAecdsa-specified
SB_CERT_ALGORITHM_GOST_R3410_1994id-GostR3410-94
SB_CERT_ALGORITHM_GOST_R3410_2001id-GostR3410-2001
SB_CERT_ALGORITHM_GOST_R3411_WITH_R3410_1994id-GostR3411-94-with-GostR3410-94
SB_CERT_ALGORITHM_GOST_R3411_WITH_R3410_2001id-GostR3411-94-with-GostR3410-2001
SB_CERT_ALGORITHM_SHA1_ECDSA_PLAINecdsa-plain-SHA1
SB_CERT_ALGORITHM_SHA224_ECDSA_PLAINecdsa-plain-SHA224
SB_CERT_ALGORITHM_SHA256_ECDSA_PLAINecdsa-plain-SHA256
SB_CERT_ALGORITHM_SHA384_ECDSA_PLAINecdsa-plain-SHA384
SB_CERT_ALGORITHM_SHA512_ECDSA_PLAINecdsa-plain-SHA512
SB_CERT_ALGORITHM_RIPEMD160_ECDSA_PLAINecdsa-plain-RIPEMD160
SB_CERT_ALGORITHM_WHIRLPOOL_RSA_ENCRYPTIONwhirlpoolWithRSAEncryption
SB_CERT_ALGORITHM_ID_DSA_SHA224id-dsa-with-sha224
SB_CERT_ALGORITHM_ID_DSA_SHA256id-dsa-with-sha256
SB_CERT_ALGORITHM_SHA3_224_RSA_ENCRYPTIONid-rsassa-pkcs1-v1_5-with-sha3-224
SB_CERT_ALGORITHM_SHA3_256_RSA_ENCRYPTIONid-rsassa-pkcs1-v1_5-with-sha3-256
SB_CERT_ALGORITHM_SHA3_384_RSA_ENCRYPTIONid-rsassa-pkcs1-v1_5-with-sha3-384
SB_CERT_ALGORITHM_SHA3_512_RSA_ENCRYPTIONid-rsassa-pkcs1-v1_5-with-sha3-512
SB_CERT_ALGORITHM_SHA3_224_ECDSAid-ecdsa-with-sha3-224
SB_CERT_ALGORITHM_SHA3_256_ECDSAid-ecdsa-with-sha3-256
SB_CERT_ALGORITHM_SHA3_384_ECDSAid-ecdsa-with-sha3-384
SB_CERT_ALGORITHM_SHA3_512_ECDSAid-ecdsa-with-sha3-512
SB_CERT_ALGORITHM_SHA3_224_ECDSA_PLAINid-ecdsa-plain-with-sha3-224
SB_CERT_ALGORITHM_SHA3_256_ECDSA_PLAINid-ecdsa-plain-with-sha3-256
SB_CERT_ALGORITHM_SHA3_384_ECDSA_PLAINid-ecdsa-plain-with-sha3-384
SB_CERT_ALGORITHM_SHA3_512_ECDSA_PLAINid-ecdsa-plain-with-sha3-512
SB_CERT_ALGORITHM_ID_DSA_SHA3_224id-dsa-with-sha3-224
SB_CERT_ALGORITHM_ID_DSA_SHA3_256id-dsa-with-sha3-256
SB_CERT_ALGORITHM_BLAKE2S_128_RSA_ENCRYPTIONid-rsassa-pkcs1-v1_5-with-blake2s128
SB_CERT_ALGORITHM_BLAKE2S_160_RSA_ENCRYPTIONid-rsassa-pkcs1-v1_5-with-blake2s160
SB_CERT_ALGORITHM_BLAKE2S_224_RSA_ENCRYPTIONid-rsassa-pkcs1-v1_5-with-blake2s224
SB_CERT_ALGORITHM_BLAKE2S_256_RSA_ENCRYPTIONid-rsassa-pkcs1-v1_5-with-blake2s256
SB_CERT_ALGORITHM_BLAKE2B_160_RSA_ENCRYPTIONid-rsassa-pkcs1-v1_5-with-blake2b160
SB_CERT_ALGORITHM_BLAKE2B_256_RSA_ENCRYPTIONid-rsassa-pkcs1-v1_5-with-blake2b256
SB_CERT_ALGORITHM_BLAKE2B_384_RSA_ENCRYPTIONid-rsassa-pkcs1-v1_5-with-blake2b384
SB_CERT_ALGORITHM_BLAKE2B_512_RSA_ENCRYPTIONid-rsassa-pkcs1-v1_5-with-blake2b512
SB_CERT_ALGORITHM_BLAKE2S_128_ECDSAid-ecdsa-with-blake2s128
SB_CERT_ALGORITHM_BLAKE2S_160_ECDSAid-ecdsa-with-blake2s160
SB_CERT_ALGORITHM_BLAKE2S_224_ECDSAid-ecdsa-with-blake2s224
SB_CERT_ALGORITHM_BLAKE2S_256_ECDSAid-ecdsa-with-blake2s256
SB_CERT_ALGORITHM_BLAKE2B_160_ECDSAid-ecdsa-with-blake2b160
SB_CERT_ALGORITHM_BLAKE2B_256_ECDSAid-ecdsa-with-blake2b256
SB_CERT_ALGORITHM_BLAKE2B_384_ECDSAid-ecdsa-with-blake2b384
SB_CERT_ALGORITHM_BLAKE2B_512_ECDSAid-ecdsa-with-blake2b512
SB_CERT_ALGORITHM_BLAKE2S_128_ECDSA_PLAINid-ecdsa-plain-with-blake2s128
SB_CERT_ALGORITHM_BLAKE2S_160_ECDSA_PLAINid-ecdsa-plain-with-blake2s160
SB_CERT_ALGORITHM_BLAKE2S_224_ECDSA_PLAINid-ecdsa-plain-with-blake2s224
SB_CERT_ALGORITHM_BLAKE2S_256_ECDSA_PLAINid-ecdsa-plain-with-blake2s256
SB_CERT_ALGORITHM_BLAKE2B_160_ECDSA_PLAINid-ecdsa-plain-with-blake2b160
SB_CERT_ALGORITHM_BLAKE2B_256_ECDSA_PLAINid-ecdsa-plain-with-blake2b256
SB_CERT_ALGORITHM_BLAKE2B_384_ECDSA_PLAINid-ecdsa-plain-with-blake2b384
SB_CERT_ALGORITHM_BLAKE2B_512_ECDSA_PLAINid-ecdsa-plain-with-blake2b512
SB_CERT_ALGORITHM_ID_DSA_BLAKE2S_224id-dsa-with-blake2s224
SB_CERT_ALGORITHM_ID_DSA_BLAKE2S_256id-dsa-with-blake2s256
SB_CERT_ALGORITHM_EDDSA_ED25519id-Ed25519
SB_CERT_ALGORITHM_EDDSA_ED448id-Ed448
SB_CERT_ALGORITHM_EDDSA_ED25519_PHid-Ed25519ph
SB_CERT_ALGORITHM_EDDSA_ED448_PHid-Ed448ph
SB_CERT_ALGORITHM_EDDSAid-EdDSA
SB_CERT_ALGORITHM_EDDSA_SIGNATUREid-EdDSA-sig

Data Type

String

FIPSMode Property (PDFDecryptor Class)

Reserved.

Syntax

ANSI (Cross Platform)
int GetFIPSMode();
int SetFIPSMode(int bFIPSMode); Unicode (Windows) BOOL GetFIPSMode();
INT SetFIPSMode(BOOL bFIPSMode);
int secureblackbox_pdfdecryptor_getfipsmode(void* lpObj);
int secureblackbox_pdfdecryptor_setfipsmode(void* lpObj, int bFIPSMode);
bool GetFIPSMode();
int SetFIPSMode(bool bFIPSMode);

Default Value

FALSE

Remarks

This property is reserved for future use.

Data Type

Boolean

InputBytes Property (PDFDecryptor Class)

Use this property to pass the input to class in the byte array form.

Syntax

ANSI (Cross Platform)
int GetInputBytes(char* &lpInputBytes, int &lenInputBytes);
int SetInputBytes(const char* lpInputBytes, int lenInputBytes); Unicode (Windows) INT GetInputBytes(LPSTR &lpInputBytes, INT &lenInputBytes);
INT SetInputBytes(LPCSTR lpInputBytes, INT lenInputBytes);
int secureblackbox_pdfdecryptor_getinputbytes(void* lpObj, char** lpInputBytes, int* lenInputBytes);
int secureblackbox_pdfdecryptor_setinputbytes(void* lpObj, const char* lpInputBytes, int lenInputBytes);
QByteArray GetInputBytes();
int SetInputBytes(QByteArray qbaInputBytes);

Remarks

Assign a byte array containing the data to be processed to this property.

This property is not available at design time.

Data Type

Byte Array

InputFile Property (PDFDecryptor Class)

The PDF file to be decrypted.

Syntax

ANSI (Cross Platform)
char* GetInputFile();
int SetInputFile(const char* lpszInputFile); Unicode (Windows) LPWSTR GetInputFile();
INT SetInputFile(LPCWSTR lpszInputFile);
char* secureblackbox_pdfdecryptor_getinputfile(void* lpObj);
int secureblackbox_pdfdecryptor_setinputfile(void* lpObj, const char* lpszInputFile);
QString GetInputFile();
int SetInputFile(QString qsInputFile);

Default Value

""

Remarks

Provide the path to the PDF document to be decrypted.

Data Type

String

OutputBytes Property (PDFDecryptor Class)

Use this property to read the output the class object has produced.

Syntax

ANSI (Cross Platform)
int GetOutputBytes(char* &lpOutputBytes, int &lenOutputBytes);

Unicode (Windows)
INT GetOutputBytes(LPSTR &lpOutputBytes, INT &lenOutputBytes);
int secureblackbox_pdfdecryptor_getoutputbytes(void* lpObj, char** lpOutputBytes, int* lenOutputBytes);
QByteArray GetOutputBytes();

Remarks

Read the contents of this property after the operation is completed to read the produced output. This property will only be set if OutputFile and OutputStream properties had not been assigned.

This property is read-only and not available at design time.

Data Type

Byte Array

OutputFile Property (PDFDecryptor Class)

The file to save the decrypted document to.

Syntax

ANSI (Cross Platform)
char* GetOutputFile();
int SetOutputFile(const char* lpszOutputFile); Unicode (Windows) LPWSTR GetOutputFile();
INT SetOutputFile(LPCWSTR lpszOutputFile);
char* secureblackbox_pdfdecryptor_getoutputfile(void* lpObj);
int secureblackbox_pdfdecryptor_setoutputfile(void* lpObj, const char* lpszOutputFile);
QString GetOutputFile();
int SetOutputFile(QString qsOutputFile);

Default Value

""

Remarks

Specifies the path where the decrypted PDF should be saved.

Data Type

String

Password Property (PDFDecryptor Class)

The decryption password.

Syntax

ANSI (Cross Platform)
char* GetPassword();
int SetPassword(const char* lpszPassword); Unicode (Windows) LPWSTR GetPassword();
INT SetPassword(LPCWSTR lpszPassword);
char* secureblackbox_pdfdecryptor_getpassword(void* lpObj);
int secureblackbox_pdfdecryptor_setpassword(void* lpObj, const char* lpszPassword);
QString GetPassword();
int SetPassword(QString qsPassword);

Default Value

""

Remarks

Use this property to provide the decryption password.

Data Type

String

Config Method (PDFDecryptor Class)

Sets or retrieves a configuration setting.

Syntax

ANSI (Cross Platform)
char* Config(const char* lpszConfigurationString);

Unicode (Windows)
LPWSTR Config(LPCWSTR lpszConfigurationString);
char* secureblackbox_pdfdecryptor_config(void* lpObj, const char* lpszConfigurationString);
QString Config(const QString& qsConfigurationString);

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.

Error Handling (C++)

This method returns a String value; after it returns, call the GetLastErrorCode() method to obtain its result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message.

Decrypt Method (PDFDecryptor Class)

Decrypts a PDF document.

Syntax

ANSI (Cross Platform)
int Decrypt();

Unicode (Windows)
INT Decrypt();
int secureblackbox_pdfdecryptor_decrypt(void* lpObj);
int Decrypt();

Remarks

Use this method to decrypt a PDF document provided via InputFile (InputStream). The decrypted document will be saved in OutputFile (OutputStream).

Error Handling (C++)

This method returns a result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message. (Note: This method's result code can also be obtained by calling the GetLastErrorCode() method after it returns.)

DoAction Method (PDFDecryptor Class)

Performs an additional action.

Syntax

ANSI (Cross Platform)
char* DoAction(const char* lpszActionID, const char* lpszActionParams);

Unicode (Windows)
LPWSTR DoAction(LPCWSTR lpszActionID, LPCWSTR lpszActionParams);
char* secureblackbox_pdfdecryptor_doaction(void* lpObj, const char* lpszActionID, const char* lpszActionParams);
QString DoAction(const QString& qsActionID, const QString& qsActionParams);

Remarks

DoAction 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 insencitive) 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;....

Error Handling (C++)

This method returns a String value; after it returns, call the GetLastErrorCode() method to obtain its result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. If an error occurs, the GetLastError() method can be called to retrieve the associated error message.

DocumentLoaded Event (PDFDecryptor Class)

This event is fired when the document has been loaded into memory.

Syntax

ANSI (Cross Platform)
virtual int FireDocumentLoaded(PDFDecryptorDocumentLoadedEventParams *e);
typedef struct {
int Cancel; int reserved; } PDFDecryptorDocumentLoadedEventParams;
Unicode (Windows) virtual INT FireDocumentLoaded(PDFDecryptorDocumentLoadedEventParams *e);
typedef struct {
BOOL Cancel; INT reserved; } PDFDecryptorDocumentLoadedEventParams;
#define EID_PDFDECRYPTOR_DOCUMENTLOADED 1

virtual INT SECUREBLACKBOX_CALL FireDocumentLoaded(BOOL &bCancel);
class PDFDecryptorDocumentLoadedEventParams {
public:
  bool Cancel();
  void SetCancel(bool bCancel);

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};
// To handle, connect one or more slots to this signal. void DocumentLoaded(PDFDecryptorDocumentLoadedEventParams *e);
// Or, subclass PDFDecryptor and override this emitter function. virtual int FireDocumentLoaded(PDFDecryptorDocumentLoadedEventParams *e) {...}

Remarks

The handler for this event is a good place to check the document structure, which may be useful when preparing the signature. For example, you can use the Pages information to find the optimal position for the signature widget.

Set Cancel to true to terminate document processing on this stage.

Encrypted Event (PDFDecryptor Class)

Notifies the application that the document is encrypted and provides recipient certificate details if asymmetric encryption was used to encrypt the document.

Syntax

ANSI (Cross Platform)
virtual int FireEncrypted(PDFDecryptorEncryptedEventParams *e);
typedef struct {
int CertUsed;
const char *IssuerRDN;
const char *SerialNumber; int lenSerialNumber;
const char *SubjectKeyID; int lenSubjectKeyID;
int NeedCredential;
int SkipThis; int reserved; } PDFDecryptorEncryptedEventParams;
Unicode (Windows) virtual INT FireEncrypted(PDFDecryptorEncryptedEventParams *e);
typedef struct {
BOOL CertUsed;
LPCWSTR IssuerRDN;
LPCSTR SerialNumber; INT lenSerialNumber;
LPCSTR SubjectKeyID; INT lenSubjectKeyID;
BOOL NeedCredential;
BOOL SkipThis; INT reserved; } PDFDecryptorEncryptedEventParams;
#define EID_PDFDECRYPTOR_ENCRYPTED 2

virtual INT SECUREBLACKBOX_CALL FireEncrypted(BOOL &bCertUsed, LPSTR &lpszIssuerRDN, LPSTR &lpSerialNumber, INT &lenSerialNumber, LPSTR &lpSubjectKeyID, INT &lenSubjectKeyID, BOOL &bNeedCredential, BOOL &bSkipThis);
class PDFDecryptorEncryptedEventParams {
public:
  bool CertUsed();

  const QString &IssuerRDN();

  const QByteArray &SerialNumber();

  const QByteArray &SubjectKeyID();

  bool NeedCredential();

  bool SkipThis();
  void SetSkipThis(bool bSkipThis);

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};
// To handle, connect one or more slots to this signal. void Encrypted(PDFDecryptorEncryptedEventParams *e);
// Or, subclass PDFDecryptor and override this emitter function. virtual int FireEncrypted(PDFDecryptorEncryptedEventParams *e) {...}

Remarks

The class fires this event when processing encrypted documents to report the fact of encryption and pass certificate parameters to the user.

This event fires repeatedly for each encryption mechanism used in the document until the user provides the correct credential via the DecryptionCertificate or Password property (depending on encryption method used), or sets SkipThis to true.

The CertUsed parameter specifies the encryption method used. If set to true, it indicates that the document uses asymmetric (certificate-based) encryption. In that case the IssuerRDN, SerialNumber, and SubjectKeyID parameters provide the details of the encryption certificate. Note that the document can be encrypted with more than one certificate (or have "more than one recipient"), in which case each certificate will invoke its own OnEncrypted event loop.

CertUsed set to false indicates that the document uses password encryption. In this case, provide the password via the Password property.

The NeedCredential parameter specifies whether the correct credential is already available to the class or still needs to be set. One example where NeedCredential would be set to false is where it had been provided by the application prior to processing the document (e.g. by setting the Password property to a known pre-defined value). If NeedCredential is set to true, you must provide the valid credential for the decryption process to succeed.

Error Event (PDFDecryptor Class)

Information about errors during signing/validation.

Syntax

ANSI (Cross Platform)
virtual int FireError(PDFDecryptorErrorEventParams *e);
typedef struct {
int ErrorCode;
const char *Description; int reserved; } PDFDecryptorErrorEventParams;
Unicode (Windows) virtual INT FireError(PDFDecryptorErrorEventParams *e);
typedef struct {
INT ErrorCode;
LPCWSTR Description; INT reserved; } PDFDecryptorErrorEventParams;
#define EID_PDFDECRYPTOR_ERROR 3

virtual INT SECUREBLACKBOX_CALL FireError(INT &iErrorCode, LPSTR &lpszDescription);
class PDFDecryptorErrorEventParams {
public:
  int ErrorCode();

  const QString &Description();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};
// To handle, connect one or more slots to this signal. void Error(PDFDecryptorErrorEventParams *e);
// Or, subclass PDFDecryptor and override this emitter function. virtual int FireError(PDFDecryptorErrorEventParams *e) {...}

Remarks

The event is fired in case of exceptional conditions during PDF processing.

ErrorCode contains an error code and Description contains a textual description of the error.

ExternalDecrypt Event (PDFDecryptor Class)

Handles remote or external decryption.

Syntax

ANSI (Cross Platform)
virtual int FireExternalDecrypt(PDFDecryptorExternalDecryptEventParams *e);
typedef struct {
const char *OperationId;
const char *Algorithm;
const char *Pars;
const char *EncryptedData;
char *Data; int reserved; } PDFDecryptorExternalDecryptEventParams;
Unicode (Windows) virtual INT FireExternalDecrypt(PDFDecryptorExternalDecryptEventParams *e);
typedef struct {
LPCWSTR OperationId;
LPCWSTR Algorithm;
LPCWSTR Pars;
LPCWSTR EncryptedData;
LPWSTR Data; INT reserved; } PDFDecryptorExternalDecryptEventParams;
#define EID_PDFDECRYPTOR_EXTERNALDECRYPT 4

virtual INT SECUREBLACKBOX_CALL FireExternalDecrypt(LPSTR &lpszOperationId, LPSTR &lpszAlgorithm, LPSTR &lpszPars, LPSTR &lpszEncryptedData, LPSTR &lpszData);
class PDFDecryptorExternalDecryptEventParams {
public:
  const QString &OperationId();

  const QString &Algorithm();

  const QString &Pars();

  const QString &EncryptedData();

  const QString &Data();
  void SetData(const QString &qsData);

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};
// To handle, connect one or more slots to this signal. void ExternalDecrypt(PDFDecryptorExternalDecryptEventParams *e);
// Or, subclass PDFDecryptor and override this emitter function. virtual int FireExternalDecrypt(PDFDecryptorExternalDecryptEventParams *e) {...}

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 a 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 component being used, and may be empty. Algorithm specifies the encryption algorithm being used, and Pars contain algorithm-dependent parameters.

The component uses base16 (hex) encoding for 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.

A sample data encoded in base16: a0dee2a0382afbb09120ffa7ccd8a152 - lower case base16 A0DEE2A0382AFBB09120FFA7CCD8A152 - upper case base16

Notification Event (PDFDecryptor Class)

This event notifies the application about an underlying control flow event.

Syntax

ANSI (Cross Platform)
virtual int FireNotification(PDFDecryptorNotificationEventParams *e);
typedef struct {
const char *EventID;
const char *EventParam; int reserved; } PDFDecryptorNotificationEventParams;
Unicode (Windows) virtual INT FireNotification(PDFDecryptorNotificationEventParams *e);
typedef struct {
LPCWSTR EventID;
LPCWSTR EventParam; INT reserved; } PDFDecryptorNotificationEventParams;
#define EID_PDFDECRYPTOR_NOTIFICATION 5

virtual INT SECUREBLACKBOX_CALL FireNotification(LPSTR &lpszEventID, LPSTR &lpszEventParam);
class PDFDecryptorNotificationEventParams {
public:
  const QString &EventID();

  const QString &EventParam();

  int EventRetVal();
  void SetEventRetVal(int iRetVal);
};
// To handle, connect one or more slots to this signal. void Notification(PDFDecryptorNotificationEventParams *e);
// Or, subclass PDFDecryptor and override this emitter function. virtual int FireNotification(PDFDecryptorNotificationEventParams *e) {...}

Remarks

The class fires this event to let the application know about some event, occurrence, or milestone in the component. 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 EventID parameter. EventParam contains any parameters accompanying the occurrence. Depending on the type of the component, the exact action it is performing, or the document being processed, one or both may be omitted.

Config Settings (PDFDecryptor Class)

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.

PDFDecryptor Config Settings

EncryptionHandlerName:   Specifies the custom security handler PDF-name.

Specifies the custom security handler PDF-name for encryption handler.

HardenedKeyGeneration:   Specifies if hardened Key generation should be used.

Specifies if hardened Key generation should be used when an AES-256 encryption algorithm and password encryption are used.

RC4KeyBits:   Specifies the number of key bits used for RC4 algorithm.

Specifies the number of key bits used for RC4 encryption algorithm.

TempPath:   Location where the temporary files are stored.

This setting specifies an absolute path to the location on disk where temporary files are stored.

Base Config Settings

CheckKeyIntegrityBeforeUse:   Enables or disable private key integrity check before use.

This global property enables or disables private key material check before each signing operation. This slows down performance a bit, but prevents a selection of attacks on RSA keys where keys with unknown origins are used.

You can switch this property off to improve performance if your project only uses known, good private keys.

CookieCaching:   Specifies whether a cookie cache should be used for HTTP(S) transports.

Set this property to enable or disable cookies caching for the class.

Supported values are:

offNo caching (default)
localLocal caching
globalGlobal caching

Cookies:   Gets or sets local cookies for the class.

Use this property to get cookies from the internal cookie storage of the class and/or restore them back between application sessions.

DefDeriveKeyIterations:   Specifies the default key derivation algorithm iteration count.

This global property sets the default number of iterations for all supported key derivation algorithms. Note that you can provide the required number of iterations by using properties of the relevant key generation component; this global setting is used in scenarios where specific iteration count is not or cannot be provided.

EnableClientSideSSLFFDHE:   Enables or disables finite field DHE key exchange support in TLS clients.

This global property enables or disables support for finite field DHE key exchange methods in TLS clients. FF DHE is a slower algorithm if compared to EC DHE; enabling it may result in slower connections.

This setting only applies to sessions negotiated with TLS version 1.3.

GlobalCookies:   Gets or sets global cookies for all the HTTP transports.

Use this property to get cookies from the GLOBAL cookie storage or restore them back between application sessions. These cookies will be used by all the classes that have its CookieCaching property set to "global".

HttpUserAgent:   Specifies the user agent name to be used by all HTTP clients.

This global setting defines the User-Agent field of the HTTP request provides information about the software that initiates the request. This value will be used by all the HTTP clients including the ones used internally in other classes.

LogDestination:   Specifies the debug log destination.

Contains a comma-separated list of values that specifies where debug log should be dumped.

Supported values are:

fileFile
consoleConsole
systemlogSystem Log (supported for Android only)
debuggerDebugger (supported for VCL for Windows and .Net)

LogDetails:   Specifies the debug log details to dump.

Contains a comma-separated list of values that specifies which debug log details to dump.

Supported values are:

timeCurrent time
levelLevel
packagePackage name
moduleModule name
classClass name
methodMethod name
threadidThread Id
contenttypeContent type
contentContent
allAll details

LogFile:   Specifies the debug log filename.

Use this property to provide a path to the log file.

LogFilters:   Specifies the debug log filters.

Contains a comma-separated list of value pairs ("name:value") that describe filters.

Supported filter names are:

exclude-packageExclude a package specified in the value
exclude-moduleExclude a module specified in the value
exclude-classExclude a class specified in the value
exclude-methodExclude a method specified in the value
include-packageInclude a package specified in the value
include-moduleInclude a module specified in the value
include-classInclude a class specified in the value
include-methodInclude a method specified in the value

LogFlushMode:   Specifies the log flush mode.

Use this property to set the log flush mode. The following values are defined:

noneNo flush (caching only)
immediateImmediate flush (real-time logging)
maxcountFlush cached entries upon reaching LogMaxEventCount entries in the cache.

LogLevel:   Specifies the debug log level.

Use this property to provide the desired debug log level.

Supported values are:

noneNone (by default)
fatalSevere errors that cause premature termination.
errorOther runtime errors or unexpected conditions.
warningUse of deprecated APIs, poor use of API, 'almost' errors, other runtime situations that are undesirable or unexpected, but not necessarily "wrong".
infoInteresting runtime events (startup/shutdown).
debugDetailed information on flow of through the system.
traceMore detailed information.

LogMaxEventCount:   Specifies the maximum number of events to cache before further action is taken.

Use this property to specify the log event number threshold. This threshold may have different effects, depending on the rotation setting and/or the flush mode.

The default value of this setting is 100.

LogRotationMode:   Specifies the log rotation mode.

Use this property to set the log rotation mode. The following values are defined:

noneNo rotation
deleteolderDelete older entries from the cache upon reaching LogMaxEventCount
keepolderKeep older entries in the cache upon reaching LogMaxEventCount (newer entries are discarded)

MaxASN1BufferLength:   Specifies the maximal allowed length for ASN.1 primitive tag data.

This global property limits the maximal allowed length for ASN.1 tag data for non-content-carrying structures, such as certificates, CRLs, or timestamps. It does not affect structures that can carry content, such as CMS/CAdES messages. This is a security property aiming at preventing DoS attacks.

MaxASN1TreeDepth:   Specifies the maximal depth for processed ASN.1 trees.

This global property limits the maximal depth of ASN.1 trees that the component can handle without throwing an error. This is a security property aiming at preventing DoS attacks.

OCSPHashAlgorithm:   Specifies the hash algorithm to be used to identify certificates in OCSP requests.

This global setting defines the hash algorithm to use in OCSP requests during chain validation. Some OCSP responders can only use older algorithms, in which case setting this property to SHA1 may be helpful.

StaticDNS:   Specifies whether static DNS rules should be used.

Set this property to enable or disable static DNS rules for the class. Works only if UseOwnDNSResolver is set to true.

Supported values are:

noneNo static DNS rules (default)
localLocal static DNS rules
globalGlobal static DNS rules

StaticIPAddress[domain]:   Gets or sets an IP address for the specified domain name.

Use this property to get or set an IP address for the specified domain name in the internal (of the class) or global DNS rules storage depending on the StaticDNS value. The type of the IP address (IPv4 or IPv6) is determined automatically. If both addresses are available, they are devided by the | (pipe) character.

StaticIPAddresses:   Gets or sets all the static DNS rules.

Use this property to get static DNS rules from the current rules storage or restore them back between application sessions. If StaticDNS of the class is set to "local", the property returns/restores the rules from/to the internal storage of the class. If StaticDNS of the class is set to "global", the property returns/restores the rules from/to the GLOBAL storage. The rules list is returned and accepted in JSON format.

Tag:   Allows to store any custom data.

Use this config property to store any custom data.

TLSSessionGroup:   Specifies the group name of TLS sessions to be used for session resumption.

Use this property to limit the search of chached TLS sessions to the specified group. Sessions from other groups will be ignored. By default, all sessions are cached with an empty group name and available to all the classes.

TLSSessionLifetime:   Specifies lifetime in seconds of the cached TLS session.

Use this property to specify how much time the TLS session should be kept in the session cache. After this time, the session expires and will be automatically removed from the cache. Default value is 300 seconds (5 minutes).

TLSSessionPurgeInterval:   Specifies how often the session cache should remove the expired TLS sessions.

Use this property to specify the time interval of purging the expired TLS sessions from the session cache. Default value is 60 seconds (1 minute).

UseOwnDNSResolver:   Specifies whether the client components should use own DNS resolver.

Set this global property to false to force all the client components to use the DNS resolver provided by the target OS instead of using own one.

UseSharedSystemStorages:   Specifies whether the validation engine should use a global per-process copy of the system certificate stores.

Set this global property to false to make each validation run use its own copy of system certificate stores.

UseSystemOAEPAndPSS:   Enforces or disables the use of system-driven RSA OAEP and PSS computations.

This global setting defines who is responsible for performing RSA-OAEP and RSA-PSS computations where the private key is stored in a Windows system store and is exportable. If set to true, SBB will delegate the computations to Windows via a CryptoAPI call. Otherwise, it will export the key material and perform the computations using its own OAEP/PSS implementation.

This setting only applies to certificates originating from a Windows system store.

UseSystemRandom:   Enables or disables the use of the OS PRNG.

Use this global property to enable or disable the use of operating system-driven pseudorandom number generation.

Trappable Errors (PDFDecryptor Class)

Error Handling (C++)

Call the GetLastErrorCode() method to obtain the last called method's result code; 0 indicates success, while a non-zero error code indicates that this method encountered an error during its execution. Known error codes are listed below. If an error occurs, the GetLastError() method can be called to retrieve the associated error message.

PDFDecryptor Errors

1048577   Invalid parameter value (SB_ERROR_INVALID_PARAMETER)
1048578   Class is configured incorrectly (SB_ERROR_INVALID_SETUP)
1048579   Operation cannot be executed in the current state (SB_ERROR_INVALID_STATE)
1048580   Attempt to set an invalid value to a property (SB_ERROR_INVALID_VALUE)
1048581   Certificate does not have its private key loaded (SB_ERROR_NO_PRIVATE_KEY)
1048581   Cancelled by the user (SB_ERROR_CANCELLED_BY_USER) 
26214401   Input file does not exist (SB_ERROR_PDF_INPUTFILE_NOT_EXISTS)
26214402   Document is encrypted (SB_ERROR_PDF_ENCRYPTED)
26214403   Document not encrypted (SB_ERROR_PDF_NOT_ENCRYPTED)
26214404   Unknown certificate type (SB_ERROR_PDF_UNKNOWN_ENCRYPTION_TYPE)
26214405   Invalid password (SB_ERROR_PDF_INVALID_PASSWORD)
26214406   Decryption failed (SB_ERROR_PDF_DECRYPTION_FAILED)
26214407   Document is signed (SB_ERROR_PDF_SIGNED)
26214408   Document is not signed (SB_ERROR_PDF_NOT_SIGNED)
26214409   Inappropriate signature (SB_ERROR_PDF_INAPPROPRIATE_SIGNATURE)
26214410   Not supported (SB_ERROR_PDF_NOT_SUPPORTED)