PSA_ALG_IS_SIGN_HASH macro

Whether the specified algorithm is a signature algorithm that can be used with psa_sign_hash() and psa_verify_hash(). This encompasses all strict hash-and-sign algorithms categorized by PSA_ALG_IS_HASH_AND_SIGN(), as well as algorithms that follow the paradigm more loosely: - #PSA_ALG_RSA_PKCS1V15_SIGN_RAW (expects its input to be an encoded hash) - #PSA_ALG_ECDSA_ANY (doesn't specify what kind of hash the input is)

Syntax

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Summary

Declaration

from crypto_values.h:1686

#define PSA_ALG_IS_SIGN_HASH(alg) \ (PSA_ALG_IS_RSA_PSS(alg) || PSA_ALG_IS_RSA_PKCS1V15_SIGN(alg) || \ PSA_ALG_IS_ECDSA(alg) || PSA_ALG_IS_HASH_EDDSA(alg) || \ PSA_ALG_IS_VENDOR_HASH_AND_SIGN(alg))

Arguments

Argument

Description

alg

An algorithm identifier (value of type psa_algorithm_t).

Return value

1 if alg is a signature algorithm that can be used to sign a hash. 0 if alg is a signature algorithm that can only be used to sign a message. 0 if alg is not a signature algorithm. This macro can return either 0 or 1 if alg is not a supported algorithm identifier.