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Keep MD and PSA max size in sync

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Some TLS code is using MD_MAX_SIZE in parts that are common to USE_PSA
and non-USE_PSA, then using PSA_HASH_MAX_SIZE in parts specific to
USE_PSA, and having different values causes trouble.

Signed-off-by: Manuel Pégourié-Gonnard <manuel.pegourie-gonnard@arm.com>
This commit is contained in:
Manuel Pégourié-Gonnard 2023-03-30 12:19:35 +02:00
parent 28f504e892
commit 45b34517fb
2 changed files with 13 additions and 2 deletions
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1
include/mbedtls/md.h
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@ -151,6 +151,7 @@ typedef enum {
MBEDTLS_MD_RIPEMD160, /**< The RIPEMD-160 message digest. */
} mbedtls_md_type_t;
/* Note: this should be kept in sync with PSA_HASH_MAX_SIZE */
#if defined(MBEDTLS_MD_CAN_SHA512)
#define MBEDTLS_MD_MAX_SIZE 64 /* longest known is SHA512 */
#elif defined(MBEDTLS_MD_CAN_SHA384)

14
include/psa/crypto_sizes.h
View file

@ -128,12 +128,22 @@
/* Note: for HMAC-SHA-3, the block size is 144 bytes for HMAC-SHA3-226,
* 136 bytes for HMAC-SHA3-256, 104 bytes for SHA3-384, 72 bytes for
* HMAC-SHA3-512. */
#if defined(PSA_WANT_ALG_SHA_512) || defined(PSA_WANT_ALG_SHA_384)
/* Note: PSA_HASH_MAX_SIZE should be kept in sync with MBEDTLS_MD_MAX_SIZE. */
#if defined(PSA_WANT_ALG_SHA_512)
#define PSA_HASH_MAX_SIZE 64
#define PSA_HMAC_MAX_HASH_BLOCK_SIZE 128
#else
#elif defined(PSA_WANT_ALG_SHA_384)
#define PSA_HASH_MAX_SIZE 48
#define PSA_HMAC_MAX_HASH_BLOCK_SIZE 128
#elif defined(PSA_WANT_ALG_SHA_256)
#define PSA_HASH_MAX_SIZE 32
#define PSA_HMAC_MAX_HASH_BLOCK_SIZE 64
#elif defined(PSA_WANT_ALG_SHA_224)
#define PSA_HASH_MAX_SIZE 28
#define PSA_HMAC_MAX_HASH_BLOCK_SIZE 64
#else /* SHA-1 or smaller */
#define PSA_HASH_MAX_SIZE 20
#define PSA_HMAC_MAX_HASH_BLOCK_SIZE 64
#endif
/** \def PSA_MAC_MAX_SIZE