HashMethod

HashMethod#

Returns a pointer to a pre-defined hash algorithm.

Syntax#

const IppsHashMethod* ippsHashMethod_SHA1(void);

const IppsHashMethod* ippsHashMethod_SHA1_NI(void);

const IppsHashMethod* ippsHashMethod_SHA1_TT(void);

const IppsHashMethod* ippsHashMethod_SHA256(void);

const IppsHashMethod* ippsHashMethod_SHA256_NI(void);

const IppsHashMethod* ippsHashMethod_SHA256_TT(void);

const IppsHashMethod* ippsHashMethod_SHA224(void);

const IppsHashMethod* ippsHashMethod_SHA224_NI(void);

const IppsHashMethod* ippsHashMethod_SHA224_TT(void);

const IppsHashMethod* ippsHashMethod_SHA512(void);

const IppsHashMethod* ippsHashMethod_SHA512_NI(void);

const IppsHashMethod* ippsHashMethod_SHA512_TT(void);

const IppsHashMethod* ippsHashMethod_SHA384(void);

const IppsHashMethod* ippsHashMethod_SHA384_NI(void);

const IppsHashMethod* ippsHashMethod_SHA384_TT(void);

const IppsHashMethod* ippsHashMethod_SHA512_224(void);

const IppsHashMethod* ippsHashMethod_SHA512_224_NI(void);

const IppsHashMethod* ippsHashMethod_SHA512_224_TT(void);

const IppsHashMethod* ippsHashMethod_SHA512_256(void);

const IppsHashMethod* ippsHashMethod_SHA512_256_NI(void);

const IppsHashMethod* ippsHashMethod_SHA512_256_TT(void);

const IppsHashMethod* ippsHashMethod_MD5(void);

const IppsHashMethod* ippsHashMethod_SM3(void);

const IppsHashMethod* ippsHashMethod_SM3_NI(void);

const IppsHashMethod* ippsHashMethod_SM3_TT(void);

const IppsHashMethod* ippsHashMethod_SHA3_224(void);

const IppsHashMethod* ippsHashMethod_SHA3_256(void);

const IppsHashMethod* ippsHashMethod_SHA3_384(void);

const IppsHashMethod* ippsHashMethod_SHA3_512(void);

const IppsHashMethod* ippsHashMethod_SHAKE128(int digestBitsize);

const IppsHashMethod* ippsHashMethod_SHAKE256(int digestBitsize);

Include Files#

ippcp.h

Parameters#

digestBitsize

The size of output digest in bits. Should be positive multiple of 8 integer.

Description#

Note

The ippsHashMethod_MD5 function is deprecated. The MD5 algorithm is considered weak due to known attacks on it. The functionality remains in the library, but the implementation will no longer be optimized and no security patches will be applied.

Each of these functions returns a pointer to a method-defined implementation of a particular hash algorithm. Use these functions in calls to HashInit and HashMessage. See table HashMethod Functions for an explanation of the values returned by the HashMethod functions.

Return Values#

const ippsHashMethod*

Pointer to the particular hash method.

NULL

digestBitsize is not positive multiple of 8 integer.
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