diff options
Diffstat (limited to 'src/crypto')
| -rw-r--r-- | src/crypto/chacha20.cpp | 48 | ||||
| -rw-r--r-- | src/crypto/chacha_poly_aead.cpp | 4 | ||||
| -rw-r--r-- | src/crypto/muhash.cpp | 4 |
3 files changed, 34 insertions, 22 deletions
diff --git a/src/crypto/chacha20.cpp b/src/crypto/chacha20.cpp index f3ff4268ee..c7e12b0612 100644 --- a/src/crypto/chacha20.cpp +++ b/src/crypto/chacha20.cpp @@ -18,6 +18,8 @@ constexpr static inline uint32_t rotl32(uint32_t v, int c) { return (v << c) | ( a += b; d = rotl32(d ^ a, 8); \ c += d; b = rotl32(b ^ c, 7); +#define REPEAT10(a) do { {a}; {a}; {a}; {a}; {a}; {a}; {a}; {a}; {a}; {a}; } while(0) + static const unsigned char sigma[] = "expand 32-byte k"; static const unsigned char tau[] = "expand 16-byte k"; @@ -119,16 +121,19 @@ void ChaCha20::Keystream(unsigned char* c, size_t bytes) x13 = j13; x14 = j14; x15 = j15; - for (i = 20;i > 0;i -= 2) { - QUARTERROUND( x0, x4, x8,x12) - QUARTERROUND( x1, x5, x9,x13) - QUARTERROUND( x2, x6,x10,x14) - QUARTERROUND( x3, x7,x11,x15) - QUARTERROUND( x0, x5,x10,x15) - QUARTERROUND( x1, x6,x11,x12) - QUARTERROUND( x2, x7, x8,x13) - QUARTERROUND( x3, x4, x9,x14) - } + + // The 20 inner ChaCha20 rounds are unrolled here for performance. + REPEAT10( + QUARTERROUND( x0, x4, x8,x12); + QUARTERROUND( x1, x5, x9,x13); + QUARTERROUND( x2, x6,x10,x14); + QUARTERROUND( x3, x7,x11,x15); + QUARTERROUND( x0, x5,x10,x15); + QUARTERROUND( x1, x6,x11,x12); + QUARTERROUND( x2, x7, x8,x13); + QUARTERROUND( x3, x4, x9,x14); + ); + x0 += j0; x1 += j1; x2 += j2; @@ -231,16 +236,19 @@ void ChaCha20::Crypt(const unsigned char* m, unsigned char* c, size_t bytes) x13 = j13; x14 = j14; x15 = j15; - for (i = 20;i > 0;i -= 2) { - QUARTERROUND( x0, x4, x8,x12) - QUARTERROUND( x1, x5, x9,x13) - QUARTERROUND( x2, x6,x10,x14) - QUARTERROUND( x3, x7,x11,x15) - QUARTERROUND( x0, x5,x10,x15) - QUARTERROUND( x1, x6,x11,x12) - QUARTERROUND( x2, x7, x8,x13) - QUARTERROUND( x3, x4, x9,x14) - } + + // The 20 inner ChaCha20 rounds are unrolled here for performance. + REPEAT10( + QUARTERROUND( x0, x4, x8,x12); + QUARTERROUND( x1, x5, x9,x13); + QUARTERROUND( x2, x6,x10,x14); + QUARTERROUND( x3, x7,x11,x15); + QUARTERROUND( x0, x5,x10,x15); + QUARTERROUND( x1, x6,x11,x12); + QUARTERROUND( x2, x7, x8,x13); + QUARTERROUND( x3, x4, x9,x14); + ); + x0 += j0; x1 += j1; x2 += j2; diff --git a/src/crypto/chacha_poly_aead.cpp b/src/crypto/chacha_poly_aead.cpp index 4f3e6f7fa3..f736b2d867 100644 --- a/src/crypto/chacha_poly_aead.cpp +++ b/src/crypto/chacha_poly_aead.cpp @@ -2,6 +2,10 @@ // Distributed under the MIT software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. +#if defined(HAVE_CONFIG_H) +#include <config/bitcoin-config.h> +#endif + #include <crypto/chacha_poly_aead.h> #include <crypto/poly1305.h> diff --git a/src/crypto/muhash.cpp b/src/crypto/muhash.cpp index 57ed357645..7d14b7938e 100644 --- a/src/crypto/muhash.cpp +++ b/src/crypto/muhash.cpp @@ -298,7 +298,7 @@ void Num3072::ToBytes(unsigned char (&out)[BYTE_SIZE]) { Num3072 MuHash3072::ToNum3072(Span<const unsigned char> in) { unsigned char tmp[Num3072::BYTE_SIZE]; - uint256 hashed_in = (CHashWriter(SER_DISK, 0) << in).GetSHA256(); + uint256 hashed_in{(HashWriter{} << in).GetSHA256()}; ChaCha20(hashed_in.data(), hashed_in.size()).Keystream(tmp, Num3072::BYTE_SIZE); Num3072 out{tmp}; @@ -318,7 +318,7 @@ void MuHash3072::Finalize(uint256& out) noexcept unsigned char data[Num3072::BYTE_SIZE]; m_numerator.ToBytes(data); - out = (CHashWriter(SER_DISK, 0) << data).GetSHA256(); + out = (HashWriter{} << data).GetSHA256(); } MuHash3072& MuHash3072::operator*=(const MuHash3072& mul) noexcept |