RIPEMD-160

API

noxtls_ripemd160_init

noxtls_return_t noxtls_ripemd160_init(noxtls_sha_ctx_t * ctx);

Initialize RIPEMD-160 hashing (ISO/IEC 10118-3).

Parameters:

• ctx — noxtls_sha_ctx_t to initialize for RIPEMD-160; must not be NULL

Returns: noxtls_return_t: NOXTLS_RETURN_SUCCESS on success, NOXTLS_RETURN_NULL if ctx is NULL.

noxtls_ripemd160_update

noxtls_return_t noxtls_ripemd160_update(noxtls_sha_ctx_t * ctx, uint8_t * data, uint32_t len);

Feed data into the RIPEMD-160 hash.

Parameters:

• ctx — noxtls_sha_ctx_t (from noxtls_ripemd160_init)
• data — Input data; may be NULL only if len is 0
• len — Number of bytes to hash.

Returns: noxtls_return_t: NOXTLS_RETURN_SUCCESS on success, NOXTLS_RETURN_NULL if ctx is NULL or data is NULL with len non-zero.

noxtls_ripemd160_finish

noxtls_return_t noxtls_ripemd160_finish(noxtls_sha_ctx_t * ctx, uint8_t * hash);

Finalize RIPEMD-160 and write the 20-byte digest.

Parameters:

• ctx — noxtls_sha_ctx_t (from noxtls_ripemd160_init)
• hash — Output buffer; must hold at least 20 bytes (HASH_RIPEMD160_OUT_LEN)

Returns: NOXTLS_RETURN_SUCCESS on success, NOXTLS_RETURN_NULL if ctx or hash is NULL.

noxtls_ripemd160_verify

noxtls_return_t noxtls_ripemd160_verify(uint8_t * data, uint32_t len, uint8_t * expected);

Compute RIPEMD-160 of data and compare to expected digest.

Parameters:

• data — Input data to hash; may be NULL only if len is 0.
• len — Number of bytes to hash.
• expected — Expected 20-byte RIPEMD-160 digest for comparison.

Returns: noxtls_return_t: NOXTLS_RETURN_SUCCESS if digest matches, NOXTLS_RETURN_FAILED otherwise or on error.