PSA_HASH_LENGTH macro

The size of the output of psa_hash_finish(), in bytes. This is also the hash size that psa_hash_verify() expects.

Syntax

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Summary

Declaration

from crypto_sizes.h:57

#define PSA_HASH_LENGTH(alg) \ ( \ PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_MD2 ? 16 : \ PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_MD4 ? 16 : \ PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_MD5 ? 16 : \ PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_RIPEMD160 ? 20 : \ PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_1 ? 20 : \ PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_224 ? 28 : \ PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_256 ? 32 : \ PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_384 ? 48 : \ PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_512 ? 64 : \ PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_512_224 ? 28 : \ PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_512_256 ? 32 : \ PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA3_224 ? 28 : \ PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA3_256 ? 32 : \ PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA3_384 ? 48 : \ PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA3_512 ? 64 : \ 0)

Arguments

Argument

Description

alg

A hash algorithm (\c PSA_ALG_XXX value such that #PSA_ALG_IS_HASH(\p alg) is true), or an HMAC algorithm (#PSA_ALG_HMAC(\c hash_alg) where \c hash_alg is a hash algorithm).

Return value

The hash size for the specified hash algorithm. If the hash algorithm is not recognized, return 0.

Examples

References

from examples

PSA_HASH_LENGTH macro

Syntax

Arguments

Return value

Examples

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