TElPGPWriter.HashAlgorithm property

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TElPGPWriter.HashAlgorithm

TElPGPWriter

Specifies data hashing algorithm.

Declaration

[C#]
int HashAlgorithm;

[VB.NET]
property HashAlgorithm as integer

[Pascal]
property HashAlgorithm : TSBPGPHashAlgorithm;
TSBPGPHashAlgorithm = integer;

[VB6]
    Property HashAlgorithm As TSBxPGPHashAlgorithm

[ActiveX]
    HRESULT _stdcall HashAlgorithm([out, retval] TxSBPGPHashAlgorithm * Result);
    HRESULT _stdcall HashAlgorithm([in] TxSBPGPHashAlgorithm Value);

[DLL]
not implemented;

Values:

[.NET] [Pascal] [ActiveX] Value Description

SB_PGP_ALGORITHM_MD_AUTO 0 (0x00) Algorithm is selected automatically. If UseOldPackets = false, SHA1 is used, otherwise MD5 is used.

SB_PGP_ALGORITHM_MD_MD5 1 (0x01) MD5 is used.

SB_PGP_ALGORITHM_MD_SHA1 2 (0x02) SHA1 is used.

SB_PGP_ALGORITHM_MD_RIPEMD160 3 (0x03) RIPEMD160 is used.

SB_PGP_ALGORITHM_MD_SHA256 8 (0x08) SHA 256-bit is used.

SB_PGP_ALGORITHM_MD_SHA384 9 (0x09) SHA 384-bit is used.

SB_PGP_ALGORITHM_MD_SHA512 10 (0x0A) SHA 512-bit is used.

SB_PGP_ALGORITHM_MD_SHA224 11 (0x0B) SHA-224 hash algorithm is used.

Declared in

[.NET] [Pascal]

Namespace: SBPGPConstants
Assembly: SecureBlackbox.PGP Unit: SBPGPConstants

Description

    Use this property to get or set algorithm that will be used for hash calculation.
    Default value is SB_PGP_ALGORITHM_MD_AUTO.
    In signatures, produced by DSA-keys, the size of the hash should not be smaller than the length of the Q parameter. By default, hash algorithm used for signatures produced by DSA-keys, uses KeyHashAlgorithm value. Longer hashes are allowed (for example, it is possible to use SHA256 for DSA 1024-bit key), but not all the PGP implementations support such behavior, thus user should be careful in such situations.