diff options
| -rw-r--r-- | sha3.c | 10 | ||||
| -rw-r--r-- | sha3.h | 32 |
2 files changed, 41 insertions, 1 deletions
@@ -1695,7 +1695,7 @@ void parallelhash256_xof_once(const parallelhash_params_t params, const uint8_t // default turboshake pad byte (can be customized for domain separation) #define TURBOSHAKE_PAD 0x1f -// init turboeshake context with given pad byte. returns false if the +// init turboshake context with given pad byte. returns false if the // pad byte is out of range. static inline _Bool turboshake_init(turboshake_t * const ts, const uint8_t pad) { // check for valid pad @@ -1736,6 +1736,10 @@ void turboshake128(const uint8_t * const src, const size_t src_len, uint8_t * co xof_once(SHAKE128_XOF_RATE, TURBOSHAKE_NUM_ROUNDS, TURBOSHAKE_PAD, src, src_len, dst, dst_len); } +void turboshake128_custom(const uint8_t pad, const uint8_t * const src, const size_t src_len, uint8_t * const dst, const size_t dst_len) { + xof_once(SHAKE128_XOF_RATE, TURBOSHAKE_NUM_ROUNDS, pad, src, src_len, dst, dst_len); +} + _Bool turboshake256_init_custom(turboshake_t * const ts, const uint8_t pad) { return turboshake_init(ts, pad); } @@ -1756,6 +1760,10 @@ void turboshake256(const uint8_t * const src, const size_t src_len, uint8_t * co xof_once(SHAKE256_XOF_RATE, TURBOSHAKE_NUM_ROUNDS, TURBOSHAKE_PAD, src, src_len, dst, dst_len); } +void turboshake256_custom(const uint8_t pad, const uint8_t * const src, const size_t src_len, uint8_t * const dst, const size_t dst_len) { + xof_once(SHAKE256_XOF_RATE, TURBOSHAKE_NUM_ROUNDS, pad, src, src_len, dst, dst_len); +} + #ifdef SHA3_TEST #include <stdio.h> // printf() @@ -1156,6 +1156,22 @@ void parallelhash256_xof_once(const parallelhash_params_t params, const uint8_t void turboshake128(const uint8_t *src, const size_t src_len, uint8_t *dst, const size_t dst_len); /** + * Initialize internal TurboSHAKE128 context with custom padding byte + * `pad`, absorb `src_len` bytes of input from in source buffer `src`, + * then squeeze `dst_len` bytes of output into destination buffer `dst`. + * + * Note: The padding byte value must be in the range [0x01, 0x7F] and + * can be used for domain separation. + * + * @param[in] pad Padding byte. + * @param[in] src Source buffer. + * @param[in] src_len Source buffer length, in bytes. + * @param[out] dst Destination buffer. + * @param[in] dst_len Destination buffer length, in bytes. + */ +void turboshake128_custom(const uint8_t pad, const uint8_t *src, const size_t src_len, uint8_t *dst, const size_t dst_len); + +/** * Initialize internal TurboSHAKE256 context, absorb `src_len` bytes of * input from in source buffer `src`, then squeeze `dst_len` bytes of output * into destination buffer `dst`. @@ -1167,6 +1183,22 @@ void turboshake128(const uint8_t *src, const size_t src_len, uint8_t *dst, const */ void turboshake256(const uint8_t *src, const size_t src_len, uint8_t *dst, const size_t dst_len); +/** + * Initialize internal TurboSHAKE256 context with custom padding byte + * `pad`, absorb `src_len` bytes of input from in source buffer `src`, + * then squeeze `dst_len` bytes of output into destination buffer `dst`. + * + * Note: The padding byte value must be in the range [0x01, 0x7F] and + * can be used for domain separation. + * + * @param[in] pad Padding byte. + * @param[in] src Source buffer. + * @param[in] src_len Source buffer length, in bytes. + * @param[out] dst Destination buffer. + * @param[in] dst_len Destination buffer length, in bytes. + */ +void turboshake256_custom(const uint8_t pad, const uint8_t *src, const size_t src_len, uint8_t *dst, const size_t dst_len); + // TurboShake XOF context. typedef struct { sha3_xof_t xof; |