diff options
Diffstat (limited to 'src/crypto')
| -rw-r--r-- | src/crypto/hmac_sha512.cpp | 34 | ||||
| -rw-r--r-- | src/crypto/hmac_sha512.h | 32 | ||||
| -rw-r--r-- | src/crypto/sha2.h | 64 | ||||
| -rw-r--r-- | src/crypto/sha256.cpp | 189 | ||||
| -rw-r--r-- | src/crypto/sha256.h | 28 | ||||
| -rw-r--r-- | src/crypto/sha512.cpp (renamed from src/crypto/sha2.cpp) | 210 | ||||
| -rw-r--r-- | src/crypto/sha512.h | 28 |
7 files changed, 314 insertions, 271 deletions
diff --git a/src/crypto/hmac_sha512.cpp b/src/crypto/hmac_sha512.cpp new file mode 100644 index 0000000000..940a93277c --- /dev/null +++ b/src/crypto/hmac_sha512.cpp @@ -0,0 +1,34 @@ +// Copyright (c) 2014 The Bitcoin developers +// Distributed under the MIT software license, see the accompanying +// file COPYING or http://www.opensource.org/licenses/mit-license.php. + +#include "crypto/hmac_sha512.h" + +#include <string.h> + +CHMAC_SHA512::CHMAC_SHA512(const unsigned char* key, size_t keylen) +{ + unsigned char rkey[128]; + if (keylen <= 128) { + memcpy(rkey, key, keylen); + memset(rkey + keylen, 0, 128 - keylen); + } else { + CSHA512().Write(key, keylen).Finalize(rkey); + memset(rkey + 64, 0, 64); + } + + for (int n = 0; n < 128; n++) + rkey[n] ^= 0x5c; + outer.Write(rkey, 128); + + for (int n = 0; n < 128; n++) + rkey[n] ^= 0x5c ^ 0x36; + inner.Write(rkey, 128); +} + +void CHMAC_SHA512::Finalize(unsigned char hash[OUTPUT_SIZE]) +{ + unsigned char temp[64]; + inner.Finalize(temp); + outer.Write(temp, 64).Finalize(hash); +} diff --git a/src/crypto/hmac_sha512.h b/src/crypto/hmac_sha512.h new file mode 100644 index 0000000000..8c65785104 --- /dev/null +++ b/src/crypto/hmac_sha512.h @@ -0,0 +1,32 @@ +// Copyright (c) 2014 The Bitcoin developers +// Distributed under the MIT software license, see the accompanying +// file COPYING or http://www.opensource.org/licenses/mit-license.php. + +#ifndef BITCOIN_HMAC_SHA512_H +#define BITCOIN_HMAC_SHA512_H + +#include "crypto/sha512.h" + +#include <stdint.h> +#include <stdlib.h> + +/** A hasher class for HMAC-SHA-512. */ +class CHMAC_SHA512 +{ +private: + CSHA512 outer; + CSHA512 inner; + +public: + static const size_t OUTPUT_SIZE = 64; + + CHMAC_SHA512(const unsigned char* key, size_t keylen); + CHMAC_SHA512& Write(const unsigned char* data, size_t len) + { + inner.Write(data, len); + return *this; + } + void Finalize(unsigned char hash[OUTPUT_SIZE]); +}; + +#endif // BITCOIN_HMAC_SHA512_H diff --git a/src/crypto/sha2.h b/src/crypto/sha2.h deleted file mode 100644 index 329c6675ab..0000000000 --- a/src/crypto/sha2.h +++ /dev/null @@ -1,64 +0,0 @@ -// Copyright (c) 2014 The Bitcoin developers -// Distributed under the MIT software license, see the accompanying -// file COPYING or http://www.opensource.org/licenses/mit-license.php. - -#ifndef BITCOIN_CRYPTO_SHA2_H -#define BITCOIN_CRYPTO_SHA2_H - -#include <stdint.h> -#include <stdlib.h> - -/** A hasher class for SHA-256. */ -class CSHA256 -{ -private: - uint32_t s[8]; - unsigned char buf[64]; - size_t bytes; - -public: - static const size_t OUTPUT_SIZE = 32; - - CSHA256(); - CSHA256& Write(const unsigned char* data, size_t len); - void Finalize(unsigned char hash[OUTPUT_SIZE]); - CSHA256& Reset(); -}; - -/** A hasher class for SHA-512. */ -class CSHA512 -{ -private: - uint64_t s[8]; - unsigned char buf[128]; - size_t bytes; - -public: - static const size_t OUTPUT_SIZE = 64; - - CSHA512(); - CSHA512& Write(const unsigned char* data, size_t len); - void Finalize(unsigned char hash[OUTPUT_SIZE]); - CSHA512& Reset(); -}; - -/** A hasher class for HMAC-SHA-512. */ -class CHMAC_SHA512 -{ -private: - CSHA512 outer; - CSHA512 inner; - -public: - static const size_t OUTPUT_SIZE = 64; - - CHMAC_SHA512(const unsigned char* key, size_t keylen); - CHMAC_SHA512& Write(const unsigned char* data, size_t len) - { - inner.Write(data, len); - return *this; - } - void Finalize(unsigned char hash[OUTPUT_SIZE]); -}; - -#endif // BITCOIN_CRYPTO_SHA2_H diff --git a/src/crypto/sha256.cpp b/src/crypto/sha256.cpp new file mode 100644 index 0000000000..8410e59305 --- /dev/null +++ b/src/crypto/sha256.cpp @@ -0,0 +1,189 @@ +// Copyright (c) 2014 The Bitcoin developers +// Distributed under the MIT software license, see the accompanying +// file COPYING or http://www.opensource.org/licenses/mit-license.php. + +#include "crypto/sha256.h" + +#include "crypto/common.h" + +#include <string.h> + +// Internal implementation code. +namespace +{ +/// Internal SHA-256 implementation. +namespace sha256 +{ +uint32_t inline Ch(uint32_t x, uint32_t y, uint32_t z) { return z ^ (x & (y ^ z)); } +uint32_t inline Maj(uint32_t x, uint32_t y, uint32_t z) { return (x & y) | (z & (x | y)); } +uint32_t inline Sigma0(uint32_t x) { return (x >> 2 | x << 30) ^ (x >> 13 | x << 19) ^ (x >> 22 | x << 10); } +uint32_t inline Sigma1(uint32_t x) { return (x >> 6 | x << 26) ^ (x >> 11 | x << 21) ^ (x >> 25 | x << 7); } +uint32_t inline sigma0(uint32_t x) { return (x >> 7 | x << 25) ^ (x >> 18 | x << 14) ^ (x >> 3); } +uint32_t inline sigma1(uint32_t x) { return (x >> 17 | x << 15) ^ (x >> 19 | x << 13) ^ (x >> 10); } + +/** One round of SHA-256. */ +void inline Round(uint32_t a, uint32_t b, uint32_t c, uint32_t& d, uint32_t e, uint32_t f, uint32_t g, uint32_t& h, uint32_t k, uint32_t w) +{ + uint32_t t1 = h + Sigma1(e) + Ch(e, f, g) + k + w; + uint32_t t2 = Sigma0(a) + Maj(a, b, c); + d += t1; + h = t1 + t2; +} + +/** Initialize SHA-256 state. */ +void inline Initialize(uint32_t* s) +{ + s[0] = 0x6a09e667ul; + s[1] = 0xbb67ae85ul; + s[2] = 0x3c6ef372ul; + s[3] = 0xa54ff53aul; + s[4] = 0x510e527ful; + s[5] = 0x9b05688cul; + s[6] = 0x1f83d9abul; + s[7] = 0x5be0cd19ul; +} + +/** Perform one SHA-256 transformation, processing a 64-byte chunk. */ +void Transform(uint32_t* s, const unsigned char* chunk) +{ + uint32_t a = s[0], b = s[1], c = s[2], d = s[3], e = s[4], f = s[5], g = s[6], h = s[7]; + uint32_t w0, w1, w2, w3, w4, w5, w6, w7, w8, w9, w10, w11, w12, w13, w14, w15; + + Round(a, b, c, d, e, f, g, h, 0x428a2f98, w0 = ReadBE32(chunk + 0)); + Round(h, a, b, c, d, e, f, g, 0x71374491, w1 = ReadBE32(chunk + 4)); + Round(g, h, a, b, c, d, e, f, 0xb5c0fbcf, w2 = ReadBE32(chunk + 8)); + Round(f, g, h, a, b, c, d, e, 0xe9b5dba5, w3 = ReadBE32(chunk + 12)); + Round(e, f, g, h, a, b, c, d, 0x3956c25b, w4 = ReadBE32(chunk + 16)); + Round(d, e, f, g, h, a, b, c, 0x59f111f1, w5 = ReadBE32(chunk + 20)); + Round(c, d, e, f, g, h, a, b, 0x923f82a4, w6 = ReadBE32(chunk + 24)); + Round(b, c, d, e, f, g, h, a, 0xab1c5ed5, w7 = ReadBE32(chunk + 28)); + Round(a, b, c, d, e, f, g, h, 0xd807aa98, w8 = ReadBE32(chunk + 32)); + Round(h, a, b, c, d, e, f, g, 0x12835b01, w9 = ReadBE32(chunk + 36)); + Round(g, h, a, b, c, d, e, f, 0x243185be, w10 = ReadBE32(chunk + 40)); + Round(f, g, h, a, b, c, d, e, 0x550c7dc3, w11 = ReadBE32(chunk + 44)); + Round(e, f, g, h, a, b, c, d, 0x72be5d74, w12 = ReadBE32(chunk + 48)); + Round(d, e, f, g, h, a, b, c, 0x80deb1fe, w13 = ReadBE32(chunk + 52)); + Round(c, d, e, f, g, h, a, b, 0x9bdc06a7, w14 = ReadBE32(chunk + 56)); + Round(b, c, d, e, f, g, h, a, 0xc19bf174, w15 = ReadBE32(chunk + 60)); + + Round(a, b, c, d, e, f, g, h, 0xe49b69c1, w0 += sigma1(w14) + w9 + sigma0(w1)); + Round(h, a, b, c, d, e, f, g, 0xefbe4786, w1 += sigma1(w15) + w10 + sigma0(w2)); + Round(g, h, a, b, c, d, e, f, 0x0fc19dc6, w2 += sigma1(w0) + w11 + sigma0(w3)); + Round(f, g, h, a, b, c, d, e, 0x240ca1cc, w3 += sigma1(w1) + w12 + sigma0(w4)); + Round(e, f, g, h, a, b, c, d, 0x2de92c6f, w4 += sigma1(w2) + w13 + sigma0(w5)); + Round(d, e, f, g, h, a, b, c, 0x4a7484aa, w5 += sigma1(w3) + w14 + sigma0(w6)); + Round(c, d, e, f, g, h, a, b, 0x5cb0a9dc, w6 += sigma1(w4) + w15 + sigma0(w7)); + Round(b, c, d, e, f, g, h, a, 0x76f988da, w7 += sigma1(w5) + w0 + sigma0(w8)); + Round(a, b, c, d, e, f, g, h, 0x983e5152, w8 += sigma1(w6) + w1 + sigma0(w9)); + Round(h, a, b, c, d, e, f, g, 0xa831c66d, w9 += sigma1(w7) + w2 + sigma0(w10)); + Round(g, h, a, b, c, d, e, f, 0xb00327c8, w10 += sigma1(w8) + w3 + sigma0(w11)); + Round(f, g, h, a, b, c, d, e, 0xbf597fc7, w11 += sigma1(w9) + w4 + sigma0(w12)); + Round(e, f, g, h, a, b, c, d, 0xc6e00bf3, w12 += sigma1(w10) + w5 + sigma0(w13)); + Round(d, e, f, g, h, a, b, c, 0xd5a79147, w13 += sigma1(w11) + w6 + sigma0(w14)); + Round(c, d, e, f, g, h, a, b, 0x06ca6351, w14 += sigma1(w12) + w7 + sigma0(w15)); + Round(b, c, d, e, f, g, h, a, 0x14292967, w15 += sigma1(w13) + w8 + sigma0(w0)); + + Round(a, b, c, d, e, f, g, h, 0x27b70a85, w0 += sigma1(w14) + w9 + sigma0(w1)); + Round(h, a, b, c, d, e, f, g, 0x2e1b2138, w1 += sigma1(w15) + w10 + sigma0(w2)); + Round(g, h, a, b, c, d, e, f, 0x4d2c6dfc, w2 += sigma1(w0) + w11 + sigma0(w3)); + Round(f, g, h, a, b, c, d, e, 0x53380d13, w3 += sigma1(w1) + w12 + sigma0(w4)); + Round(e, f, g, h, a, b, c, d, 0x650a7354, w4 += sigma1(w2) + w13 + sigma0(w5)); + Round(d, e, f, g, h, a, b, c, 0x766a0abb, w5 += sigma1(w3) + w14 + sigma0(w6)); + Round(c, d, e, f, g, h, a, b, 0x81c2c92e, w6 += sigma1(w4) + w15 + sigma0(w7)); + Round(b, c, d, e, f, g, h, a, 0x92722c85, w7 += sigma1(w5) + w0 + sigma0(w8)); + Round(a, b, c, d, e, f, g, h, 0xa2bfe8a1, w8 += sigma1(w6) + w1 + sigma0(w9)); + Round(h, a, b, c, d, e, f, g, 0xa81a664b, w9 += sigma1(w7) + w2 + sigma0(w10)); + Round(g, h, a, b, c, d, e, f, 0xc24b8b70, w10 += sigma1(w8) + w3 + sigma0(w11)); + Round(f, g, h, a, b, c, d, e, 0xc76c51a3, w11 += sigma1(w9) + w4 + sigma0(w12)); + Round(e, f, g, h, a, b, c, d, 0xd192e819, w12 += sigma1(w10) + w5 + sigma0(w13)); + Round(d, e, f, g, h, a, b, c, 0xd6990624, w13 += sigma1(w11) + w6 + sigma0(w14)); + Round(c, d, e, f, g, h, a, b, 0xf40e3585, w14 += sigma1(w12) + w7 + sigma0(w15)); + Round(b, c, d, e, f, g, h, a, 0x106aa070, w15 += sigma1(w13) + w8 + sigma0(w0)); + + Round(a, b, c, d, e, f, g, h, 0x19a4c116, w0 += sigma1(w14) + w9 + sigma0(w1)); + Round(h, a, b, c, d, e, f, g, 0x1e376c08, w1 += sigma1(w15) + w10 + sigma0(w2)); + Round(g, h, a, b, c, d, e, f, 0x2748774c, w2 += sigma1(w0) + w11 + sigma0(w3)); + Round(f, g, h, a, b, c, d, e, 0x34b0bcb5, w3 += sigma1(w1) + w12 + sigma0(w4)); + Round(e, f, g, h, a, b, c, d, 0x391c0cb3, w4 += sigma1(w2) + w13 + sigma0(w5)); + Round(d, e, f, g, h, a, b, c, 0x4ed8aa4a, w5 += sigma1(w3) + w14 + sigma0(w6)); + Round(c, d, e, f, g, h, a, b, 0x5b9cca4f, w6 += sigma1(w4) + w15 + sigma0(w7)); + Round(b, c, d, e, f, g, h, a, 0x682e6ff3, w7 += sigma1(w5) + w0 + sigma0(w8)); + Round(a, b, c, d, e, f, g, h, 0x748f82ee, w8 += sigma1(w6) + w1 + sigma0(w9)); + Round(h, a, b, c, d, e, f, g, 0x78a5636f, w9 += sigma1(w7) + w2 + sigma0(w10)); + Round(g, h, a, b, c, d, e, f, 0x84c87814, w10 += sigma1(w8) + w3 + sigma0(w11)); + Round(f, g, h, a, b, c, d, e, 0x8cc70208, w11 += sigma1(w9) + w4 + sigma0(w12)); + Round(e, f, g, h, a, b, c, d, 0x90befffa, w12 += sigma1(w10) + w5 + sigma0(w13)); + Round(d, e, f, g, h, a, b, c, 0xa4506ceb, w13 += sigma1(w11) + w6 + sigma0(w14)); + Round(c, d, e, f, g, h, a, b, 0xbef9a3f7, w14 + sigma1(w12) + w7 + sigma0(w15)); + Round(b, c, d, e, f, g, h, a, 0xc67178f2, w15 + sigma1(w13) + w8 + sigma0(w0)); + + s[0] += a; + s[1] += b; + s[2] += c; + s[3] += d; + s[4] += e; + s[5] += f; + s[6] += g; + s[7] += h; +} + +} // namespace sha256 +} // namespace + + +////// SHA-256 + +CSHA256::CSHA256() : bytes(0) +{ + sha256::Initialize(s); +} + +CSHA256& CSHA256::Write(const unsigned char* data, size_t len) +{ + const unsigned char* end = data + len; + size_t bufsize = bytes % 64; + if (bufsize && bufsize + len >= 64) { + // Fill the buffer, and process it. + memcpy(buf + bufsize, data, 64 - bufsize); + bytes += 64 - bufsize; + data += 64 - bufsize; + sha256::Transform(s, buf); + bufsize = 0; + } + while (end >= data + 64) { + // Process full chunks directly from the source. + sha256::Transform(s, data); + bytes += 64; + data += 64; + } + if (end > data) { + // Fill the buffer with what remains. + memcpy(buf + bufsize, data, end - data); + bytes += end - data; + } + return *this; +} + +void CSHA256::Finalize(unsigned char hash[OUTPUT_SIZE]) +{ + static const unsigned char pad[64] = {0x80}; + unsigned char sizedesc[8]; + WriteBE64(sizedesc, bytes << 3); + Write(pad, 1 + ((119 - (bytes % 64)) % 64)); + Write(sizedesc, 8); + WriteBE32(hash, s[0]); + WriteBE32(hash + 4, s[1]); + WriteBE32(hash + 8, s[2]); + WriteBE32(hash + 12, s[3]); + WriteBE32(hash + 16, s[4]); + WriteBE32(hash + 20, s[5]); + WriteBE32(hash + 24, s[6]); + WriteBE32(hash + 28, s[7]); +} + +CSHA256& CSHA256::Reset() +{ + bytes = 0; + sha256::Initialize(s); + return *this; +} diff --git a/src/crypto/sha256.h b/src/crypto/sha256.h new file mode 100644 index 0000000000..a57dce0227 --- /dev/null +++ b/src/crypto/sha256.h @@ -0,0 +1,28 @@ +// Copyright (c) 2014 The Bitcoin developers +// Distributed under the MIT software license, see the accompanying +// file COPYING or http://www.opensource.org/licenses/mit-license.php. + +#ifndef BITCOIN_SHA256_H +#define BITCOIN_SHA256_H + +#include <stdint.h> +#include <stdlib.h> + +/** A hasher class for SHA-256. */ +class CSHA256 +{ +private: + uint32_t s[8]; + unsigned char buf[64]; + size_t bytes; + +public: + static const size_t OUTPUT_SIZE = 32; + + CSHA256(); + CSHA256& Write(const unsigned char* data, size_t len); + void Finalize(unsigned char hash[OUTPUT_SIZE]); + CSHA256& Reset(); +}; + +#endif // BITCOIN_SHA256_H diff --git a/src/crypto/sha2.cpp b/src/crypto/sha512.cpp index 613aac2d71..22c3103bed 100644 --- a/src/crypto/sha2.cpp +++ b/src/crypto/sha512.cpp @@ -2,7 +2,7 @@ // Distributed under the MIT software license, see the accompanying // file COPYING or http://www.opensource.org/licenses/mit-license.php. -#include "crypto/sha2.h" +#include "crypto/sha512.h" #include "crypto/common.h" @@ -11,124 +11,6 @@ // Internal implementation code. namespace { -/// Internal SHA-256 implementation. -namespace sha256 -{ -uint32_t inline Ch(uint32_t x, uint32_t y, uint32_t z) { return z ^ (x & (y ^ z)); } -uint32_t inline Maj(uint32_t x, uint32_t y, uint32_t z) { return (x & y) | (z & (x | y)); } -uint32_t inline Sigma0(uint32_t x) { return (x >> 2 | x << 30) ^ (x >> 13 | x << 19) ^ (x >> 22 | x << 10); } -uint32_t inline Sigma1(uint32_t x) { return (x >> 6 | x << 26) ^ (x >> 11 | x << 21) ^ (x >> 25 | x << 7); } -uint32_t inline sigma0(uint32_t x) { return (x >> 7 | x << 25) ^ (x >> 18 | x << 14) ^ (x >> 3); } -uint32_t inline sigma1(uint32_t x) { return (x >> 17 | x << 15) ^ (x >> 19 | x << 13) ^ (x >> 10); } - -/** One round of SHA-256. */ -void inline Round(uint32_t a, uint32_t b, uint32_t c, uint32_t& d, uint32_t e, uint32_t f, uint32_t g, uint32_t& h, uint32_t k, uint32_t w) -{ - uint32_t t1 = h + Sigma1(e) + Ch(e, f, g) + k + w; - uint32_t t2 = Sigma0(a) + Maj(a, b, c); - d += t1; - h = t1 + t2; -} - -/** Initialize SHA-256 state. */ -void inline Initialize(uint32_t* s) -{ - s[0] = 0x6a09e667ul; - s[1] = 0xbb67ae85ul; - s[2] = 0x3c6ef372ul; - s[3] = 0xa54ff53aul; - s[4] = 0x510e527ful; - s[5] = 0x9b05688cul; - s[6] = 0x1f83d9abul; - s[7] = 0x5be0cd19ul; -} - -/** Perform one SHA-256 transformation, processing a 64-byte chunk. */ -void Transform(uint32_t* s, const unsigned char* chunk) -{ - uint32_t a = s[0], b = s[1], c = s[2], d = s[3], e = s[4], f = s[5], g = s[6], h = s[7]; - uint32_t w0, w1, w2, w3, w4, w5, w6, w7, w8, w9, w10, w11, w12, w13, w14, w15; - - Round(a, b, c, d, e, f, g, h, 0x428a2f98, w0 = ReadBE32(chunk + 0)); - Round(h, a, b, c, d, e, f, g, 0x71374491, w1 = ReadBE32(chunk + 4)); - Round(g, h, a, b, c, d, e, f, 0xb5c0fbcf, w2 = ReadBE32(chunk + 8)); - Round(f, g, h, a, b, c, d, e, 0xe9b5dba5, w3 = ReadBE32(chunk + 12)); - Round(e, f, g, h, a, b, c, d, 0x3956c25b, w4 = ReadBE32(chunk + 16)); - Round(d, e, f, g, h, a, b, c, 0x59f111f1, w5 = ReadBE32(chunk + 20)); - Round(c, d, e, f, g, h, a, b, 0x923f82a4, w6 = ReadBE32(chunk + 24)); - Round(b, c, d, e, f, g, h, a, 0xab1c5ed5, w7 = ReadBE32(chunk + 28)); - Round(a, b, c, d, e, f, g, h, 0xd807aa98, w8 = ReadBE32(chunk + 32)); - Round(h, a, b, c, d, e, f, g, 0x12835b01, w9 = ReadBE32(chunk + 36)); - Round(g, h, a, b, c, d, e, f, 0x243185be, w10 = ReadBE32(chunk + 40)); - Round(f, g, h, a, b, c, d, e, 0x550c7dc3, w11 = ReadBE32(chunk + 44)); - Round(e, f, g, h, a, b, c, d, 0x72be5d74, w12 = ReadBE32(chunk + 48)); - Round(d, e, f, g, h, a, b, c, 0x80deb1fe, w13 = ReadBE32(chunk + 52)); - Round(c, d, e, f, g, h, a, b, 0x9bdc06a7, w14 = ReadBE32(chunk + 56)); - Round(b, c, d, e, f, g, h, a, 0xc19bf174, w15 = ReadBE32(chunk + 60)); - - Round(a, b, c, d, e, f, g, h, 0xe49b69c1, w0 += sigma1(w14) + w9 + sigma0(w1)); - Round(h, a, b, c, d, e, f, g, 0xefbe4786, w1 += sigma1(w15) + w10 + sigma0(w2)); - Round(g, h, a, b, c, d, e, f, 0x0fc19dc6, w2 += sigma1(w0) + w11 + sigma0(w3)); - Round(f, g, h, a, b, c, d, e, 0x240ca1cc, w3 += sigma1(w1) + w12 + sigma0(w4)); - Round(e, f, g, h, a, b, c, d, 0x2de92c6f, w4 += sigma1(w2) + w13 + sigma0(w5)); - Round(d, e, f, g, h, a, b, c, 0x4a7484aa, w5 += sigma1(w3) + w14 + sigma0(w6)); - Round(c, d, e, f, g, h, a, b, 0x5cb0a9dc, w6 += sigma1(w4) + w15 + sigma0(w7)); - Round(b, c, d, e, f, g, h, a, 0x76f988da, w7 += sigma1(w5) + w0 + sigma0(w8)); - Round(a, b, c, d, e, f, g, h, 0x983e5152, w8 += sigma1(w6) + w1 + sigma0(w9)); - Round(h, a, b, c, d, e, f, g, 0xa831c66d, w9 += sigma1(w7) + w2 + sigma0(w10)); - Round(g, h, a, b, c, d, e, f, 0xb00327c8, w10 += sigma1(w8) + w3 + sigma0(w11)); - Round(f, g, h, a, b, c, d, e, 0xbf597fc7, w11 += sigma1(w9) + w4 + sigma0(w12)); - Round(e, f, g, h, a, b, c, d, 0xc6e00bf3, w12 += sigma1(w10) + w5 + sigma0(w13)); - Round(d, e, f, g, h, a, b, c, 0xd5a79147, w13 += sigma1(w11) + w6 + sigma0(w14)); - Round(c, d, e, f, g, h, a, b, 0x06ca6351, w14 += sigma1(w12) + w7 + sigma0(w15)); - Round(b, c, d, e, f, g, h, a, 0x14292967, w15 += sigma1(w13) + w8 + sigma0(w0)); - - Round(a, b, c, d, e, f, g, h, 0x27b70a85, w0 += sigma1(w14) + w9 + sigma0(w1)); - Round(h, a, b, c, d, e, f, g, 0x2e1b2138, w1 += sigma1(w15) + w10 + sigma0(w2)); - Round(g, h, a, b, c, d, e, f, 0x4d2c6dfc, w2 += sigma1(w0) + w11 + sigma0(w3)); - Round(f, g, h, a, b, c, d, e, 0x53380d13, w3 += sigma1(w1) + w12 + sigma0(w4)); - Round(e, f, g, h, a, b, c, d, 0x650a7354, w4 += sigma1(w2) + w13 + sigma0(w5)); - Round(d, e, f, g, h, a, b, c, 0x766a0abb, w5 += sigma1(w3) + w14 + sigma0(w6)); - Round(c, d, e, f, g, h, a, b, 0x81c2c92e, w6 += sigma1(w4) + w15 + sigma0(w7)); - Round(b, c, d, e, f, g, h, a, 0x92722c85, w7 += sigma1(w5) + w0 + sigma0(w8)); - Round(a, b, c, d, e, f, g, h, 0xa2bfe8a1, w8 += sigma1(w6) + w1 + sigma0(w9)); - Round(h, a, b, c, d, e, f, g, 0xa81a664b, w9 += sigma1(w7) + w2 + sigma0(w10)); - Round(g, h, a, b, c, d, e, f, 0xc24b8b70, w10 += sigma1(w8) + w3 + sigma0(w11)); - Round(f, g, h, a, b, c, d, e, 0xc76c51a3, w11 += sigma1(w9) + w4 + sigma0(w12)); - Round(e, f, g, h, a, b, c, d, 0xd192e819, w12 += sigma1(w10) + w5 + sigma0(w13)); - Round(d, e, f, g, h, a, b, c, 0xd6990624, w13 += sigma1(w11) + w6 + sigma0(w14)); - Round(c, d, e, f, g, h, a, b, 0xf40e3585, w14 += sigma1(w12) + w7 + sigma0(w15)); - Round(b, c, d, e, f, g, h, a, 0x106aa070, w15 += sigma1(w13) + w8 + sigma0(w0)); - - Round(a, b, c, d, e, f, g, h, 0x19a4c116, w0 += sigma1(w14) + w9 + sigma0(w1)); - Round(h, a, b, c, d, e, f, g, 0x1e376c08, w1 += sigma1(w15) + w10 + sigma0(w2)); - Round(g, h, a, b, c, d, e, f, 0x2748774c, w2 += sigma1(w0) + w11 + sigma0(w3)); - Round(f, g, h, a, b, c, d, e, 0x34b0bcb5, w3 += sigma1(w1) + w12 + sigma0(w4)); - Round(e, f, g, h, a, b, c, d, 0x391c0cb3, w4 += sigma1(w2) + w13 + sigma0(w5)); - Round(d, e, f, g, h, a, b, c, 0x4ed8aa4a, w5 += sigma1(w3) + w14 + sigma0(w6)); - Round(c, d, e, f, g, h, a, b, 0x5b9cca4f, w6 += sigma1(w4) + w15 + sigma0(w7)); - Round(b, c, d, e, f, g, h, a, 0x682e6ff3, w7 += sigma1(w5) + w0 + sigma0(w8)); - Round(a, b, c, d, e, f, g, h, 0x748f82ee, w8 += sigma1(w6) + w1 + sigma0(w9)); - Round(h, a, b, c, d, e, f, g, 0x78a5636f, w9 += sigma1(w7) + w2 + sigma0(w10)); - Round(g, h, a, b, c, d, e, f, 0x84c87814, w10 += sigma1(w8) + w3 + sigma0(w11)); - Round(f, g, h, a, b, c, d, e, 0x8cc70208, w11 += sigma1(w9) + w4 + sigma0(w12)); - Round(e, f, g, h, a, b, c, d, 0x90befffa, w12 += sigma1(w10) + w5 + sigma0(w13)); - Round(d, e, f, g, h, a, b, c, 0xa4506ceb, w13 += sigma1(w11) + w6 + sigma0(w14)); - Round(c, d, e, f, g, h, a, b, 0xbef9a3f7, w14 + sigma1(w12) + w7 + sigma0(w15)); - Round(b, c, d, e, f, g, h, a, 0xc67178f2, w15 + sigma1(w13) + w8 + sigma0(w0)); - - s[0] += a; - s[1] += b; - s[2] += c; - s[3] += d; - s[4] += e; - s[5] += f; - s[6] += g; - s[7] += h; -} - -} // namespace sha256 - /// Internal SHA-512 implementation. namespace sha512 { @@ -249,8 +131,8 @@ void Transform(uint64_t* s, const unsigned char* chunk) Round(f, g, h, a, b, c, d, e, 0x431d67c49c100d4cull, w11 += sigma1(w9) + w4 + sigma0(w12)); Round(e, f, g, h, a, b, c, d, 0x4cc5d4becb3e42b6ull, w12 += sigma1(w10) + w5 + sigma0(w13)); Round(d, e, f, g, h, a, b, c, 0x597f299cfc657e2aull, w13 += sigma1(w11) + w6 + sigma0(w14)); - Round(c, d, e, f, g, h, a, b, 0x5fcb6fab3ad6faecull, w14 += sigma1(w12) + w7 + sigma0(w15)); - Round(b, c, d, e, f, g, h, a, 0x6c44198c4a475817ull, w15 += sigma1(w13) + w8 + sigma0(w0)); + Round(c, d, e, f, g, h, a, b, 0x5fcb6fab3ad6faecull, w14 + sigma1(w12) + w7 + sigma0(w15)); + Round(b, c, d, e, f, g, h, a, 0x6c44198c4a475817ull, w15 + sigma1(w13) + w8 + sigma0(w0)); s[0] += a; s[1] += b; @@ -267,63 +149,6 @@ void Transform(uint64_t* s, const unsigned char* chunk) } // namespace -////// SHA-256 - -CSHA256::CSHA256() : bytes(0) -{ - sha256::Initialize(s); -} - -CSHA256& CSHA256::Write(const unsigned char* data, size_t len) -{ - const unsigned char* end = data + len; - size_t bufsize = bytes % 64; - if (bufsize && bufsize + len >= 64) { - // Fill the buffer, and process it. - memcpy(buf + bufsize, data, 64 - bufsize); - bytes += 64 - bufsize; - data += 64 - bufsize; - sha256::Transform(s, buf); - bufsize = 0; - } - while (end >= data + 64) { - // Process full chunks directly from the source. - sha256::Transform(s, data); - bytes += 64; - data += 64; - } - if (end > data) { - // Fill the buffer with what remains. - memcpy(buf + bufsize, data, end - data); - bytes += end - data; - } - return *this; -} - -void CSHA256::Finalize(unsigned char hash[OUTPUT_SIZE]) -{ - static const unsigned char pad[64] = {0x80}; - unsigned char sizedesc[8]; - WriteBE64(sizedesc, bytes << 3); - Write(pad, 1 + ((119 - (bytes % 64)) % 64)); - Write(sizedesc, 8); - WriteBE32(hash, s[0]); - WriteBE32(hash + 4, s[1]); - WriteBE32(hash + 8, s[2]); - WriteBE32(hash + 12, s[3]); - WriteBE32(hash + 16, s[4]); - WriteBE32(hash + 20, s[5]); - WriteBE32(hash + 24, s[6]); - WriteBE32(hash + 28, s[7]); -} - -CSHA256& CSHA256::Reset() -{ - bytes = 0; - sha256::Initialize(s); - return *this; -} - ////// SHA-512 CSHA512::CSHA512() : bytes(0) @@ -380,32 +205,3 @@ CSHA512& CSHA512::Reset() sha512::Initialize(s); return *this; } - -////// HMAC-SHA-512 - -CHMAC_SHA512::CHMAC_SHA512(const unsigned char* key, size_t keylen) -{ - unsigned char rkey[128]; - if (keylen <= 128) { - memcpy(rkey, key, keylen); - memset(rkey + keylen, 0, 128 - keylen); - } else { - CSHA512().Write(key, keylen).Finalize(rkey); - memset(rkey + 64, 0, 64); - } - - for (int n = 0; n < 128; n++) - rkey[n] ^= 0x5c; - outer.Write(rkey, 128); - - for (int n = 0; n < 128; n++) - rkey[n] ^= 0x5c ^ 0x36; - inner.Write(rkey, 128); -} - -void CHMAC_SHA512::Finalize(unsigned char hash[OUTPUT_SIZE]) -{ - unsigned char temp[64]; - inner.Finalize(temp); - outer.Write(temp, 64).Finalize(hash); -} diff --git a/src/crypto/sha512.h b/src/crypto/sha512.h new file mode 100644 index 0000000000..4d1345e50b --- /dev/null +++ b/src/crypto/sha512.h @@ -0,0 +1,28 @@ +// Copyright (c) 2014 The Bitcoin developers +// Distributed under the MIT software license, see the accompanying +// file COPYING or http://www.opensource.org/licenses/mit-license.php. + +#ifndef BITCOIN_SHA512_H +#define BITCOIN_SHA512_H + +#include <stdint.h> +#include <stdlib.h> + +/** A hasher class for SHA-512. */ +class CSHA512 +{ +private: + uint64_t s[8]; + unsigned char buf[128]; + size_t bytes; + +public: + static const size_t OUTPUT_SIZE = 64; + + CSHA512(); + CSHA512& Write(const unsigned char* data, size_t len); + void Finalize(unsigned char hash[OUTPUT_SIZE]); + CSHA512& Reset(); +}; + +#endif // BITCOIN_SHA512_H |