diff options
Diffstat (limited to 'src/lib/hash/sha3/sha3.h')
| -rw-r--r-- | src/lib/hash/sha3/sha3.h | 33 |
1 files changed, 25 insertions, 8 deletions
diff --git a/src/lib/hash/sha3/sha3.h b/src/lib/hash/sha3/sha3.h index c877bd938..649aa12fd 100644 --- a/src/lib/hash/sha3/sha3.h +++ b/src/lib/hash/sha3/sha3.h @@ -27,14 +27,6 @@ class BOTAN_DLL SHA_3 : public HashFunction */ SHA_3(size_t output_bits); - /** - * @param output_bits the size of the hash output; must be a - * multiple of 8 (ie, byte-wide outputs) - * @param capacity the capacity of the spong, normally always - * 2*output_bits with SHA-3. - */ - SHA_3(size_t output_bits, size_t capacity); - size_t hash_block_size() const override { return m_bitrate / 8; } size_t output_length() const override { return m_output_bits / 8; } @@ -42,6 +34,31 @@ class BOTAN_DLL SHA_3 : public HashFunction std::string name() const override; void clear() override; + // Static functions for internal usage + + /** + * Absorb data into the provided state + * @param bitrate the bitrate to absorb into the sponge + * @param S the sponge state + * @param S_pos where to begin absorbing into S + * @param input the input data + * @param length size of input in bytes + */ + static size_t absorb(size_t bitrate, + secure_vector<uint64_t>& S, size_t S_pos, + const byte input[], size_t length); + + /** + * Expand from provided state + * @param bitrate sponge parameter + * @param S the state + * @param output the output buffer + * @param output_length the size of output in bytes + */ + static void expand(size_t bitrate, + secure_vector<uint64_t>& S, + byte output[], size_t output_length); + /** * The bare Keccak-1600 permutation */ |