diff options
Diffstat (limited to 'src/lib/hash/keccak')
| -rw-r--r-- | src/lib/hash/keccak/keccak.cpp | 44 | ||||
| -rw-r--r-- | src/lib/hash/keccak/keccak.h | 10 |
2 files changed, 27 insertions, 27 deletions
diff --git a/src/lib/hash/keccak/keccak.cpp b/src/lib/hash/keccak/keccak.cpp index 39d0c822b..c0b430a8f 100644 --- a/src/lib/hash/keccak/keccak.cpp +++ b/src/lib/hash/keccak/keccak.cpp @@ -99,10 +99,10 @@ void keccak_f_1600(u64bit A[25]) } Keccak_1600::Keccak_1600(size_t output_bits) : - output_bits(output_bits), - bitrate(1600 - 2*output_bits), - S(25), - S_pos(0) + m_output_bits(output_bits), + m_bitrate(1600 - 2*output_bits), + m_S(25), + m_S_pos(0) { // We only support the parameters for the SHA-3 proposal @@ -114,18 +114,18 @@ Keccak_1600::Keccak_1600(size_t output_bits) : std::string Keccak_1600::name() const { - return "Keccak-1600(" + std::to_string(output_bits) + ")"; + return "Keccak-1600(" + std::to_string(m_output_bits) + ")"; } HashFunction* Keccak_1600::clone() const { - return new Keccak_1600(output_bits); + return new Keccak_1600(m_output_bits); } void Keccak_1600::clear() { - zeroise(S); - S_pos = 0; + zeroise(m_S); + m_S_pos = 0; } void Keccak_1600::add_data(const byte input[], size_t length) @@ -135,47 +135,47 @@ void Keccak_1600::add_data(const byte input[], size_t length) while(length) { - size_t to_take = std::min(length, bitrate / 8 - S_pos); + size_t to_take = std::min(length, m_bitrate / 8 - m_S_pos); length -= to_take; - while(to_take && S_pos % 8) + while(to_take && m_S_pos % 8) { - S[S_pos / 8] ^= static_cast<u64bit>(input[0]) << (8 * (S_pos % 8)); + m_S[m_S_pos / 8] ^= static_cast<u64bit>(input[0]) << (8 * (m_S_pos % 8)); - ++S_pos; + ++m_S_pos; ++input; --to_take; } while(to_take && to_take % 8 == 0) { - S[S_pos / 8] ^= load_le<u64bit>(input, 0); - S_pos += 8; + m_S[m_S_pos / 8] ^= load_le<u64bit>(input, 0); + m_S_pos += 8; input += 8; to_take -= 8; } while(to_take) { - S[S_pos / 8] ^= static_cast<u64bit>(input[0]) << (8 * (S_pos % 8)); + m_S[m_S_pos / 8] ^= static_cast<u64bit>(input[0]) << (8 * (m_S_pos % 8)); - ++S_pos; + ++m_S_pos; ++input; --to_take; } - if(S_pos == bitrate / 8) + if(m_S_pos == m_bitrate / 8) { - keccak_f_1600(S.data()); - S_pos = 0; + keccak_f_1600(m_S.data()); + m_S_pos = 0; } } } void Keccak_1600::final_result(byte output[]) { - std::vector<byte> padding(bitrate / 8 - S_pos); + std::vector<byte> padding(m_bitrate / 8 - m_S_pos); padding[0] = 0x01; padding[padding.size()-1] |= 0x80; @@ -186,8 +186,8 @@ void Keccak_1600::final_result(byte output[]) * We never have to run the permutation again because we only support * limited output lengths */ - for(size_t i = 0; i != output_bits/8; ++i) - output[i] = get_byte(7 - (i % 8), S[i/8]); + for(size_t i = 0; i != m_output_bits/8; ++i) + output[i] = get_byte(7 - (i % 8), m_S[i/8]); clear(); } diff --git a/src/lib/hash/keccak/keccak.h b/src/lib/hash/keccak/keccak.h index 0e7d3d5d1..c08b6c4e4 100644 --- a/src/lib/hash/keccak/keccak.h +++ b/src/lib/hash/keccak/keccak.h @@ -27,8 +27,8 @@ class BOTAN_DLL Keccak_1600 : public HashFunction */ Keccak_1600(size_t output_bits = 512); - size_t hash_block_size() const override { return bitrate / 8; } - size_t output_length() const override { return output_bits / 8; } + size_t hash_block_size() const override { return m_bitrate / 8; } + size_t output_length() const override { return m_output_bits / 8; } HashFunction* clone() const override; std::string name() const override; @@ -37,9 +37,9 @@ class BOTAN_DLL Keccak_1600 : public HashFunction void add_data(const byte input[], size_t length) override; void final_result(byte out[]) override; - size_t output_bits, bitrate; - secure_vector<u64bit> S; - size_t S_pos; + size_t m_output_bits, m_bitrate; + secure_vector<u64bit> m_S; + size_t m_S_pos; }; } |