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PSA_HASH_BLOCK_LENGTH macro
The input block size of a hash algorithm, in bytes. Hash algorithms process their input data in blocks. Hash operations will retain any partial blocks until they have enough input to fill the block or until the operation is finished. This affects the output from psa_hash_suspend().
Syntax
#define PSA_HASH_BLOCK_LENGTH(alg) \
( \
PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_MD2 ? 16 : \
PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_MD4 ? 64 : \
PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_MD5 ? 64 : \
PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_RIPEMD160 ? 64 : \
PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_1 ? 64 : \
PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_224 ? 64 : \
PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_256 ? 64 : \
PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_384 ? 128 : \
PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_512 ? 128 : \
PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_512_224 ? 128 : \
PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_512_256 ? 128 : \
PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA3_224 ? 144 : \
PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA3_256 ? 136 : \
PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA3_384 ? 104 : \
PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA3_512 ? 72 : \
0)
Return value
The block size in bytes for the specified hash algorithm. If the hash algorithm is not recognized, return 0. An implementation can return either 0 or the correct size for a hash algorithm that it recognizes, but does not support.