Add missing PSA_HASH_BLOCK_LENGTH macro.
Signed-off-by: Mateusz Starzyk <mateusz.starzyk@mobica.com>
diff --git a/include/psa/crypto_sizes.h b/include/psa/crypto_sizes.h
index f51ec87..2df315c 100644
--- a/include/psa/crypto_sizes.h
+++ b/include/psa/crypto_sizes.h
@@ -85,6 +85,40 @@
PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA3_512 ? 64 : \
0)
+/** The input block size of a hash algorithm, in bytes.
+ *
+ * Hash algorithms process their input data in blocks. Hash operations will
+ * retain any partial blocks until they have enough input to fill the block or
+ * until the operation is finished.
+ * This affects the output from psa_hash_suspend().
+ *
+ * \param alg A hash algorithm (\c PSA_ALG_XXX value such that
+ * PSA_ALG_IS_HASH(\p alg) is true).
+ *
+ * \return The block size in bytes for the specified hash algorithm.
+ * If the hash algorithm is not recognized, return 0.
+ * An implementation can return either 0 or the correct size for a
+ * hash algorithm that it recognizes, but does not support.
+ */
+#define PSA_HASH_BLOCK_LENGTH(alg) \
+ ( \
+ PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_MD2 ? 16 : \
+ PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_MD4 ? 64 : \
+ PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_MD5 ? 64 : \
+ PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_RIPEMD160 ? 64 : \
+ PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_1 ? 64 : \
+ PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_224 ? 64 : \
+ PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_256 ? 64 : \
+ PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_384 ? 128 : \
+ PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_512 ? 128 : \
+ PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_512_224 ? 128 : \
+ PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA_512_256 ? 128 : \
+ PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA3_224 ? 144 : \
+ PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA3_256 ? 136 : \
+ PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA3_384 ? 104 : \
+ PSA_ALG_HMAC_GET_HASH(alg) == PSA_ALG_SHA3_512 ? 72 : \
+ 0)
+
/** \def PSA_HASH_MAX_SIZE
*
* Maximum size of a hash.