Use hash algoritm for parameter instead of HMAC
To be compatible with the other functions `mbedtls_psa_hkdf_extract` and
`mbedtls_psa_hkdf_expand` use hash algorithm for parameter.
Signed-off-by: Gabor Mezei <gabor.mezei@arm.com>
diff --git a/library/ssl_tls13_invasive.h b/library/ssl_tls13_invasive.h
index 8a3a501..4e39f90 100644
--- a/library/ssl_tls13_invasive.h
+++ b/library/ssl_tls13_invasive.h
@@ -30,10 +30,7 @@
* \brief Take the input keying material \p ikm and extract from it a
* fixed-length pseudorandom key \p prk.
*
- * \param alg The HMAC algorithm to use
- * (\c #PSA_ALG_HMAC( PSA_ALG_XXX ) value such that
- * PSA_ALG_XXX is a hash algorithm and
- * #PSA_ALG_IS_HMAC(\p alg) is true).
+ * \param hash_alg Hash algorithm to use.
* \param salt An optional salt value (a non-secret random value);
* if the salt is not provided, a string of all zeros
* of the length of the hash provided by \p alg is used
@@ -51,7 +48,7 @@
* \return An PSA_ERROR_* error for errors returned from the underlying
* PSA layer.
*/
-psa_status_t mbedtls_psa_hkdf_extract( psa_algorithm_t alg,
+psa_status_t mbedtls_psa_hkdf_extract( psa_algorithm_t hash_alg,
const unsigned char *salt, size_t salt_len,
const unsigned char *ikm, size_t ikm_len,
unsigned char *prk, size_t prk_size,
@@ -61,9 +58,7 @@
* \brief Expand the supplied \p prk into several additional pseudorandom
* keys, which is the output of the HKDF.
*
- * \param alg The HMAC algorithm to use (\c #PSA_ALG_HMAC( PSA_ALG_XXX )
- * value such that PSA_ALG_XXX is a hash algorithm and
- * #PSA_ALG_IS_HMAC(\p alg) is true).
+ * \param hash_alg Hash algorithm to use.
* \param prk A pseudorandom key of \p prk_len bytes. \p prk is
* usually the output from the HKDF extract step.
* \param prk_len The length in bytes of \p prk.
@@ -80,7 +75,7 @@
* \return An PSA_ERROR_* error for errors returned from the underlying
* PSA layer.
*/
-psa_status_t mbedtls_psa_hkdf_expand( psa_algorithm_t alg,
+psa_status_t mbedtls_psa_hkdf_expand( psa_algorithm_t hash_alg,
const unsigned char *prk, size_t prk_len,
const unsigned char *info, size_t info_len,
unsigned char *okm, size_t okm_len );