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-rw-r--r--src/crypto/hmac_sha256.cpp34
-rw-r--r--src/crypto/hmac_sha256.h32
-rw-r--r--src/crypto/hmac_sha512.cpp34
-rw-r--r--src/crypto/hmac_sha512.h32
-rw-r--r--src/crypto/rfc6979_hmac_sha256.cpp47
-rw-r--r--src/crypto/rfc6979_hmac_sha256.h36
-rw-r--r--src/crypto/sha2.h64
-rw-r--r--src/crypto/sha256.cpp189
-rw-r--r--src/crypto/sha256.h28
-rw-r--r--src/crypto/sha512.cpp (renamed from src/crypto/sha2.cpp)210
-rw-r--r--src/crypto/sha512.h28
11 files changed, 463 insertions, 271 deletions
diff --git a/src/crypto/hmac_sha256.cpp b/src/crypto/hmac_sha256.cpp
new file mode 100644
index 0000000000..435896538b
--- /dev/null
+++ b/src/crypto/hmac_sha256.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_sha256.h"
+
+#include <string.h>
+
+CHMAC_SHA256::CHMAC_SHA256(const unsigned char* key, size_t keylen)
+{
+ unsigned char rkey[64];
+ if (keylen <= 64) {
+ memcpy(rkey, key, keylen);
+ memset(rkey + keylen, 0, 64 - keylen);
+ } else {
+ CSHA256().Write(key, keylen).Finalize(rkey);
+ memset(rkey + 32, 0, 32);
+ }
+
+ for (int n = 0; n < 64; n++)
+ rkey[n] ^= 0x5c;
+ outer.Write(rkey, 64);
+
+ for (int n = 0; n < 64; n++)
+ rkey[n] ^= 0x5c ^ 0x36;
+ inner.Write(rkey, 64);
+}
+
+void CHMAC_SHA256::Finalize(unsigned char hash[OUTPUT_SIZE])
+{
+ unsigned char temp[32];
+ inner.Finalize(temp);
+ outer.Write(temp, 32).Finalize(hash);
+}
diff --git a/src/crypto/hmac_sha256.h b/src/crypto/hmac_sha256.h
new file mode 100644
index 0000000000..1fdee5a7cd
--- /dev/null
+++ b/src/crypto/hmac_sha256.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_CRYPTO_HMAC_SHA256_H
+#define BITCOIN_CRYPTO_HMAC_SHA256_H
+
+#include "crypto/sha256.h"
+
+#include <stdint.h>
+#include <stdlib.h>
+
+/** A hasher class for HMAC-SHA-512. */
+class CHMAC_SHA256
+{
+private:
+ CSHA256 outer;
+ CSHA256 inner;
+
+public:
+ static const size_t OUTPUT_SIZE = 32;
+
+ CHMAC_SHA256(const unsigned char* key, size_t keylen);
+ CHMAC_SHA256& Write(const unsigned char* data, size_t len)
+ {
+ inner.Write(data, len);
+ return *this;
+ }
+ void Finalize(unsigned char hash[OUTPUT_SIZE]);
+};
+
+#endif // BITCOIN_CRYPTO_HMAC_SHA256_H
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..17d75021aa
--- /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_CRYPTO_HMAC_SHA512_H
+#define BITCOIN_CRYPTO_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_CRYPTO_HMAC_SHA512_H
diff --git a/src/crypto/rfc6979_hmac_sha256.cpp b/src/crypto/rfc6979_hmac_sha256.cpp
new file mode 100644
index 0000000000..3f935abfea
--- /dev/null
+++ b/src/crypto/rfc6979_hmac_sha256.cpp
@@ -0,0 +1,47 @@
+// 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/rfc6979_hmac_sha256.h"
+
+#include <string.h>
+
+#include <algorithm>
+
+static const unsigned char zero[1] = {0x00};
+static const unsigned char one[1] = {0x01};
+
+RFC6979_HMAC_SHA256::RFC6979_HMAC_SHA256(const unsigned char* key, size_t keylen, const unsigned char* msg, size_t msglen) : retry(false)
+{
+ memset(V, 0x01, sizeof(V));
+ memset(K, 0x00, sizeof(K));
+
+ CHMAC_SHA256(K, sizeof(K)).Write(V, sizeof(V)).Write(zero, sizeof(zero)).Write(key, keylen).Write(msg, msglen).Finalize(K);
+ CHMAC_SHA256(K, sizeof(K)).Write(V, sizeof(V)).Finalize(V);
+ CHMAC_SHA256(K, sizeof(K)).Write(V, sizeof(V)).Write(one, sizeof(one)).Write(key, keylen).Write(msg, msglen).Finalize(K);
+ CHMAC_SHA256(K, sizeof(K)).Write(V, sizeof(V)).Finalize(V);
+}
+
+RFC6979_HMAC_SHA256::~RFC6979_HMAC_SHA256()
+{
+ memset(V, 0x01, sizeof(V));
+ memset(K, 0x00, sizeof(K));
+}
+
+void RFC6979_HMAC_SHA256::Generate(unsigned char* output, size_t outputlen)
+{
+ if (retry) {
+ CHMAC_SHA256(K, sizeof(K)).Write(V, sizeof(V)).Write(zero, sizeof(zero)).Finalize(K);
+ CHMAC_SHA256(K, sizeof(K)).Write(V, sizeof(V)).Finalize(V);
+ }
+
+ while (outputlen > 0) {
+ CHMAC_SHA256(K, sizeof(K)).Write(V, sizeof(V)).Finalize(V);
+ size_t len = std::min(outputlen, sizeof(V));
+ memcpy(output, V, len);
+ output += len;
+ outputlen -= len;
+ }
+
+ retry = true;
+}
diff --git a/src/crypto/rfc6979_hmac_sha256.h b/src/crypto/rfc6979_hmac_sha256.h
new file mode 100644
index 0000000000..e67ddcf8fe
--- /dev/null
+++ b/src/crypto/rfc6979_hmac_sha256.h
@@ -0,0 +1,36 @@
+// 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_RFC6979_HMAC_SHA256_H
+#define BITCOIN_RFC6979_HMAC_SHA256_H
+
+#include "crypto/hmac_sha256.h"
+
+#include <stdint.h>
+#include <stdlib.h>
+
+/** The RFC 6979 PRNG using HMAC-SHA256. */
+class RFC6979_HMAC_SHA256
+{
+private:
+ unsigned char V[CHMAC_SHA256::OUTPUT_SIZE];
+ unsigned char K[CHMAC_SHA256::OUTPUT_SIZE];
+ bool retry;
+
+public:
+ /**
+ * Construct a new RFC6979 PRNG, using the given key and message.
+ * The message is assumed to be already hashed.
+ */
+ RFC6979_HMAC_SHA256(const unsigned char* key, size_t keylen, const unsigned char* msg, size_t msglen);
+
+ /**
+ * Generate a byte array.
+ */
+ void Generate(unsigned char* output, size_t outputlen);
+
+ ~RFC6979_HMAC_SHA256();
+};
+
+#endif // BITCOIN_RFC6979_HMAC_SHA256_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..bde1a59bed
--- /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_CRYPTO_SHA256_H
+#define BITCOIN_CRYPTO_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_CRYPTO_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..5566d5db3e
--- /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_CRYPTO_SHA512_H
+#define BITCOIN_CRYPTO_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_CRYPTO_SHA512_H
generated by cgit v1.2.3 (git 2.26.2) at 2024-11-14 17:15:29 +0000