From d860e0f18b19770a2496189be1a78dab4450e841 Mon Sep 17 00:00:00 2001 From: Gabor Mezei Date: Tue, 15 Feb 2022 16:02:59 +0100 Subject: [PATCH] Add comment Signed-off-by: Gabor Mezei --- library/ssl_tls13_keys.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/library/ssl_tls13_keys.c b/library/ssl_tls13_keys.c index 25a1b5086..d135afc86 100644 --- a/library/ssl_tls13_keys.c +++ b/library/ssl_tls13_keys.c @@ -167,6 +167,8 @@ psa_status_t mbedtls_psa_hkdf_extract( psa_algorithm_t alg, return( PSA_ERROR_INVALID_ARGUMENT ); } + /* salt_len <= sizeof( salt ) because + PSA_HASH_LENGTH( alg ) <= PSA_MAC_MAX_SIZE. */ salt = null_salt; salt_len = hash_len; }