PDFDecryptor Class
Properties Methods Events Configuration Settings Errors
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.
| DecryptionCertificateBytes | Returns raw certificate data in DER format. |
| DecryptionCertificateHandle | Allows to get or set a 'handle', a unique identifier of the underlying property object. |
| DecryptionCertCount | The number of records in the DecryptionCert arrays. |
| DecryptionCertBytes | Returns raw certificate data in DER format. |
| DecryptionCertHandle | Allows to get or set a 'handle', a unique identifier of the underlying property object. |
| Encrypted | Indicates if the PDF document is encrypted. |
| EncryptionAlgorithm | The symmetric algorithm used to encrypt the document. |
| EncryptionType | The document encryption type. |
| ExternalCryptoAsyncDocumentID | Specifies the document ID for SignAsyncEnd() call Use this property when working with multi-signature DCAuth requests and responses to uniquely identify documents signed within a larger batch. |
| ExternalCryptoCustomParams | Custom parameters to be passed to the signing service (uninterpreted). |
| ExternalCryptoData | Additional data to be included in the async state and mirrored back by the requestor. |
| ExternalCryptoExternalHashCalculation | Specifies whether the message hash is to be calculated at the external endpoint. |
| ExternalCryptoHashAlgorithm | Specifies the request's signature hash algorithm. |
| ExternalCryptoKeyID | The ID of the pre-shared key used for DC request authentication. |
| ExternalCryptoKeySecret | The pre-shared key used for DC request authentication. |
| ExternalCryptoMethod | Specifies the asynchronous signing method. |
| ExternalCryptoMode | Specifies the external cryptography mode. |
| ExternalCryptoPublicKeyAlgorithm | Provide public key algorithm here if the certificate is not available on the pre-signing stage. |
| FIPSMode | Reserved. |
| InputBytes | Use this property to pass the input to class in the byte array form. |
| InputFile | The PDF file to be decrypted. |
| MetadataEncrypted | Indicates if the document metadata is encrypted. |
| OutputBytes | Use this property to read the output the class object has produced. |
| OutputFile | The file to save the decrypted document to. |
| Password | The decryption password. |
| PermsAnnotations | Indicates whether the viewer may add annotations to the document. |
| PermsAssemble | Indicates if the viewer may assemble a new document on the basis of the encrypted one. |
| PermsExtract | Indicates if the user may extract (copy) pictures and text from the encrypted document. |
| PermsExtractAcc | Indicates if the user may extract pictures/text from the document for accessibility purposes. |
| PermsFillInForms | Indicates if the user may fill in forms in the document. |
| PermsHighQualityPrint | Indicates if the document may be printed in high quality. |
| PermsLowQualityPrint | Indicates if the document may be printed in low quality. |
| PermsModify | Indicates if the document may be modified. |
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 | Decrypts a PDF document. |
| DoAction | Performs 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.
| DecryptionInfoNeeded | Requests decryption information during decryption, signing, or validation. |
| Error | Information about errors during signing/validation. |
| ExternalDecrypt | Handles remote or external decryption. |
| Notification | This event notifies the application about an underlying control flow event. |
| RecipientFound | Provides recipient certificate details to the application. |
Configuration Settings
The following is a list of configuration settings for the class with short descriptions. Click on the links for further details.
| EncryptionHandlerName | Specifies the custom security handler PDF-name. |
| HardenedKeyGeneration | Specifies if hardened Key generation should be used. |
| RC4KeyBits | Specifies the number of key bits used for RC4 algorithm. |
| TempPath | Location where the temporary files are stored. |
| 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 (supported for HTTPClient, RESTClient and SOAPClient only). |
| DefDeriveKeyIterations | Specifies the default key derivation algorithm iteration count. |
| EnableClientSideSSLFFDHE | Enables or disables finite field DHE key exchange support in TLS clients. |
| GlobalCookies | Gets or sets global cookies for all the HTTP transports. |
| HttpUserAgent | Specifies the user agent name to be used by all HTTP clients. |
| 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. |
| Tag | Allows to store any custom data. |
| UseSharedSystemStorages | Specifies whether the validation engine should use a global per-process copy of the system certificate stores. |
| UseSystemOAEPAndPSS | Enforces or disables the use of system-driven RSA OAEP and PSS computations. |
| UseSystemRandom | Enables or disables the use of the OS PRNG. |
DecryptionCertificateBytes Property (PDFDecryptor Class)
Returns raw certificate data in DER format.
Syntax
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
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
DecryptionCertCount Property (PDFDecryptor Class)
The number of records in the DecryptionCert arrays.
Syntax
int GetDecryptionCertCount();
int SetDecryptionCertCount(int iDecryptionCertCount);
Default Value
0
Remarks
This property controls the size of the following arrays:
The array indices start at 0 and end at DecryptionCertCount - 1.This property is not available at design time.
Data Type
Integer
DecryptionCertBytes Property (PDFDecryptor Class)
Returns raw certificate data in DER format.
Syntax
QByteArray GetDecryptionCertBytes(int iDecryptionCertIndex);
Remarks
Returns raw certificate data in DER format.
The DecryptionCertIndex parameter specifies the index of the item in the array. The size of the array is controlled by the DecryptionCertCount property.
This property is read-only and not available at design time.
Data Type
Byte Array
DecryptionCertHandle Property (PDFDecryptor Class)
Allows to get or set a 'handle', a unique identifier of the underlying property object.
Syntax
qint64 GetDecryptionCertHandle(int iDecryptionCertIndex);
int SetDecryptionCertHandle(int iDecryptionCertIndex, qint64 lDecryptionCertHandle);
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 DecryptionCertIndex parameter specifies the index of the item in the array. The size of the array is controlled by the DecryptionCertCount property.
This property is not available at design time.
Data Type
Long64
Encrypted Property (PDFDecryptor Class)
Indicates if the PDF document is encrypted.
Syntax
bool GetEncrypted();
Default Value
false
Remarks
Use this property to check if the PDF document is encrypted.
This property is read-only and not available at design time.
Data Type
Boolean
EncryptionAlgorithm Property (PDFDecryptor Class)
The symmetric algorithm used to encrypt the document.
Syntax
QString GetEncryptionAlgorithm();
Default Value
""
Remarks
This property contains the encryption algorithm that was used to encrypt the PDF document.
Supported values:
| SB_SYMMETRIC_ALGORITHM_RC4 | RC4 | |
| SB_SYMMETRIC_ALGORITHM_AES128 | AES128 | |
| SB_SYMMETRIC_ALGORITHM_AES256 | AES256 |
This property is read-only and not available at design time.
Data Type
String
EncryptionType Property (PDFDecryptor Class)
The document encryption type.
Syntax
int GetEncryptionType();
Possible Values
PET_NONE(0),
PET_PASSWORD(1),
PET_CERTIFICATE(2)
Default Value
1
Remarks
This property indicates the kind of encryption that was used to encrypt the PDF document.
Supported values:
| petPassword | 1 | The document is encrypted with a password. |
| petCertificate | 2 | The document is encrypted with a certificate. |
This property is read-only and not available at design time.
Data Type
Integer
ExternalCryptoAsyncDocumentID Property (PDFDecryptor Class)
Specifies the document ID for SignAsyncEnd() call Use this property when working with multi-signature DCAuth requests and responses to uniquely identify documents signed within a larger batch.
Syntax
QString GetExternalCryptoAsyncDocumentID();
int SetExternalCryptoAsyncDocumentID(QString qsExternalCryptoAsyncDocumentID);
Default Value
""
Remarks
Specifies the document ID for SignAsyncEnd() call
Use this property when working with multi-signature DCAuth requests and responses to uniquely identify documents signed within a larger batch. This value helps ASiCSigner 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
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
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
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
QString GetExternalCryptoHashAlgorithm();
int SetExternalCryptoHashAlgorithm(QString qsExternalCryptoHashAlgorithm);
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 |
Data Type
String
ExternalCryptoKeyID Property (PDFDecryptor Class)
The ID of the pre-shared key used for DC request authentication.
Syntax
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
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
int GetExternalCryptoMethod();
int SetExternalCryptoMethod(int iExternalCryptoMethod);
Possible Values
ASMD_PKCS1(0),
ASMD_PKCS7(1)
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 |
Data Type
Integer
ExternalCryptoMode Property (PDFDecryptor Class)
Specifies the external cryptography mode.
Syntax
int GetExternalCryptoMode();
int SetExternalCryptoMode(int iExternalCryptoMode);
Possible Values
ECM_DEFAULT(0),
ECM_DISABLED(1),
ECM_GENERIC(2),
ECM_DCAUTH(3),
ECM_DCAUTH_JSON(4)
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 OnExternalSign event (2) |
| ecmDCAuth | DCAuth signing (3) |
| ecmDCAuthJSON | DCAuth 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
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_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 |
Data Type
String
FIPSMode Property (PDFDecryptor Class)
Reserved.
Syntax
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
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
QString GetInputFile();
int SetInputFile(QString qsInputFile);
Default Value
""
Remarks
Provide the path to the PDF document to be decrypted.
Data Type
String
MetadataEncrypted Property (PDFDecryptor Class)
Indicates if the document metadata is encrypted.
Syntax
bool GetMetadataEncrypted();
Default Value
true
Remarks
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
OutputBytes Property (PDFDecryptor Class)
Use this property to read the output the class object has produced.
Syntax
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
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
QString GetPassword();
int SetPassword(QString qsPassword);
Default Value
""
Remarks
Use this property to provide the decryption password.
Data Type
String
PermsAnnotations Property (PDFDecryptor Class)
Indicates whether the viewer may add annotations to the document.
Syntax
bool GetPermsAnnotations();
Default Value
true
Remarks
Indicates whether the viewer may add annotations to the document.
This property is read-only and not available at design time.
Data Type
Boolean
PermsAssemble Property (PDFDecryptor Class)
Indicates if the viewer may assemble a new document on the basis of the encrypted one.
Syntax
bool GetPermsAssemble();
Default Value
true
Remarks
Indicates if the viewer may assemble a new document on the basis of the encrypted one.
This property is read-only and not available at design time.
Data Type
Boolean
PermsExtract Property (PDFDecryptor Class)
Indicates if the user may extract (copy) pictures and text from the encrypted document.
Syntax
bool GetPermsExtract();
Default Value
true
Remarks
Indicates if the user may extract (copy) pictures and text from the encrypted document.
This property is read-only and not available at design time.
Data Type
Boolean
PermsExtractAcc Property (PDFDecryptor Class)
Indicates if the user may extract pictures/text from the document for accessibility purposes.
Syntax
bool GetPermsExtractAcc();
Default Value
true
Remarks
Indicates if the user may extract pictures/text from the document for accessibility purposes.
This property is read-only and not available at design time.
Data Type
Boolean
PermsFillInForms Property (PDFDecryptor Class)
Indicates if the user may fill in forms in the document.
Syntax
bool GetPermsFillInForms();
Default Value
true
Remarks
Indicates if the user may fill in forms in the document.
This property is read-only and not available at design time.
Data Type
Boolean
PermsHighQualityPrint Property (PDFDecryptor Class)
Indicates if the document may be printed in high quality.
Syntax
bool GetPermsHighQualityPrint();
Default Value
true
Remarks
Indicates if the document may be printed in high quality.
This property is read-only and not available at design time.
Data Type
Boolean
PermsLowQualityPrint Property (PDFDecryptor Class)
Indicates if the document may be printed in low quality.
Syntax
bool GetPermsLowQualityPrint();
Default Value
true
Remarks
Indicates if the document may be printed in low quality.
This property is read-only and not available at design time.
Data Type
Boolean
PermsModify Property (PDFDecryptor Class)
Indicates if the document may be modified.
Syntax
bool GetPermsModify();
Default Value
true
Remarks
Indicates if the document may be modified.
This property is read-only and not available at design time.
Data Type
Boolean
Config Method (PDFDecryptor Class)
Sets or retrieves a configuration setting.
Syntax
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
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
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
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
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 of the action is provided in ActionID parameter. ActionParams contains a list of parameters for the action in the form of PARAM1=VALUE1;PARAM2=VALUE2;....
Error Handling
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.
DecryptionInfoNeeded Event (PDFDecryptor Class)
Requests decryption information during decryption, signing, or validation.
Syntax
class PDFDecryptorDecryptionInfoNeededEventParams {
public:
bool CancelDecryption();
void SetCancelDecryption(bool bCancelDecryption);
int EventRetVal();
void SetEventRetVal(int iRetVal);
};
// To handle, connect one or more slots to this signal.
void DecryptionInfoNeeded(PDFDecryptorDecryptionInfoNeededEventParams *e);
// Or, subclass PDFDecryptor and override this emitter function.
virtual int FireDecryptionInfoNeeded(PDFDecryptorDecryptionInfoNeededEventParams *e) {...}
Remarks
This event is fired when the component needs decryption information to be provided by the user.
Use EncryptionType property to identify the document encryption type used, and then set Password or DecryptionCertificate (DecryptionCertificates) properties accordingly.
The class fires this event repeatedly until suitable decryption information is provided. To terminate the operation, set CancelDecryption to true.
Error Event (PDFDecryptor Class)
Information about errors during signing/validation.
Syntax
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
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
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.
RecipientFound Event (PDFDecryptor Class)
Provides recipient certificate details to the application.
Syntax
class PDFDecryptorRecipientFoundEventParams {
public:
const QString &IssuerRDN();
const QByteArray &SerialNumber();
const QByteArray &SubjectKeyID();
bool CertFound();
int EventRetVal();
void SetEventRetVal(int iRetVal);
};
// To handle, connect one or more slots to this signal.
void RecipientFound(PDFDecryptorRecipientFoundEventParams *e);
// Or, subclass PDFDecryptor and override this emitter function.
virtual int FireRecipientFound(PDFDecryptorRecipientFoundEventParams *e) {...}
Remarks
The class fires this event when processing encrypted documents to report encryption certificate details to the user.
Subscribe to this event to obtain encryption certificate information and pass the corresponding certificate to the class via DecryptionCertificate (DecryptionCertificates) property.
Configuration 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 Configuration 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 Configuration 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. |
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| 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:
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| Cookies: Gets or sets local cookies for the class (supported for HTTPClient, RESTClient and SOAPClient only).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. |
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| 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:
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| 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:
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| 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:
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LogFlushMode:
Specifies the log flush mode.Use this property to set the log flush mode. The following values are defined:
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| LogLevel:
Specifies the debug log level.Use this property to provide the desired debug log level.
Supported values are:
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| 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. |
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LogRotationMode:
Specifies the log rotation mode.Use this property to set the log rotation mode. The following values are defined:
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| 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. | ||||||||||||||||||||||||||||||
| Tag: Allows to store any custom data.Use this config property to store any custom data. | ||||||||||||||||||||||||||||||
| 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. |
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| 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)
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) |