PSA_ALG_IS_HKDF_EXPAND macro

Whether the specified algorithm is an HKDF-Expand algorithm. HKDF-Expand is a family of key derivation algorithms that are based on a hash function and the HMAC construction.

Syntax

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Declaration

from crypto_values.h:1926

#define PSA_ALG_IS_HKDF_EXPAND(alg) \ (((alg) & ~PSA_ALG_HASH_MASK) == PSA_ALG_HKDF_EXPAND_BASE)

Arguments

Argument

Description

alg

An algorithm identifier (value of type #psa_algorithm_t).

Return value

1 if \c alg is an HKDF-Expand algorithm, 0 otherwise. This macro may return either 0 or 1 if \c alg is not a supported key derivation algorithm identifier.

References

Code

Location

#define PSA_ALG_IS_HKDF_EXPAND(alg) \

crypto_values.h:1926

PSA_ALG_IS_HKDF_EXPAND macro

Syntax

Arguments

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