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authorchriseth <chris@ethereum.org>2018-10-18 19:35:20 +0800
committerchriseth <chris@ethereum.org>2018-10-18 20:31:36 +0800
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parentd9e6469811655e7272d4a5cf23f888b8776e4acc (diff)
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Renamed SHA3.{h,cpp} files.
Diffstat (limited to 'libdevcore/SHA3.cpp')
-rw-r--r--libdevcore/SHA3.cpp185
1 files changed, 0 insertions, 185 deletions
diff --git a/libdevcore/SHA3.cpp b/libdevcore/SHA3.cpp
deleted file mode 100644
index 6933f255..00000000
--- a/libdevcore/SHA3.cpp
+++ /dev/null
@@ -1,185 +0,0 @@
-/*
- This file is part of solidity.
-
- solidity is free software: you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation, either version 3 of the License, or
- (at your option) any later version.
-
- solidity is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with solidity. If not, see <http://www.gnu.org/licenses/>.
-*/
-/** @file SHA3.cpp
- * @author Gav Wood <i@gavwood.com>
- * @date 2014
- */
-
-#include "SHA3.h"
-#include <cstdint>
-#include <cstdio>
-#include <cstdlib>
-#include <cstring>
-
-using namespace std;
-using namespace dev;
-
-namespace dev
-{
-
-namespace
-{
-
-/** libkeccak-tiny
- *
- * A single-file implementation of SHA-3 and SHAKE.
- *
- * Implementor: David Leon Gil
- * License: CC0, attribution kindly requested. Blame taken too,
- * but not liability.
- */
-
-/******** The Keccak-f[1600] permutation ********/
-
-/*** Constants. ***/
-static const uint8_t rho[24] = \
- { 1, 3, 6, 10, 15, 21,
- 28, 36, 45, 55, 2, 14,
- 27, 41, 56, 8, 25, 43,
- 62, 18, 39, 61, 20, 44};
-static const uint8_t pi[24] = \
- {10, 7, 11, 17, 18, 3,
- 5, 16, 8, 21, 24, 4,
- 15, 23, 19, 13, 12, 2,
- 20, 14, 22, 9, 6, 1};
-static const uint64_t RC[24] = \
- {1ULL, 0x8082ULL, 0x800000000000808aULL, 0x8000000080008000ULL,
- 0x808bULL, 0x80000001ULL, 0x8000000080008081ULL, 0x8000000000008009ULL,
- 0x8aULL, 0x88ULL, 0x80008009ULL, 0x8000000aULL,
- 0x8000808bULL, 0x800000000000008bULL, 0x8000000000008089ULL, 0x8000000000008003ULL,
- 0x8000000000008002ULL, 0x8000000000000080ULL, 0x800aULL, 0x800000008000000aULL,
- 0x8000000080008081ULL, 0x8000000000008080ULL, 0x80000001ULL, 0x8000000080008008ULL};
-
-/*** Helper macros to unroll the permutation. ***/
-#define rol(x, s) (((x) << s) | ((x) >> (64 - s)))
-#define REPEAT6(e) e e e e e e
-#define REPEAT24(e) REPEAT6(e e e e)
-#define REPEAT5(e) e e e e e
-#define FOR5(v, s, e) \
- v = 0; \
- REPEAT5(e; v += s;)
-
-/*** Keccak-f[1600] ***/
-static inline void keccakf(void* state) {
- uint64_t* a = (uint64_t*)state;
- uint64_t b[5] = {0};
-
- for (int i = 0; i < 24; i++)
- {
- uint8_t x, y;
- // Theta
- FOR5(x, 1,
- b[x] = 0;
- FOR5(y, 5,
- b[x] ^= a[x + y]; ))
- FOR5(x, 1,
- FOR5(y, 5,
- a[y + x] ^= b[(x + 4) % 5] ^ rol(b[(x + 1) % 5], 1); ))
- // Rho and pi
- uint64_t t = a[1];
- x = 0;
- REPEAT24(b[0] = a[pi[x]];
- a[pi[x]] = rol(t, rho[x]);
- t = b[0];
- x++; )
- // Chi
- FOR5(y,
- 5,
- FOR5(x, 1,
- b[x] = a[y + x];)
- FOR5(x, 1,
- a[y + x] = b[x] ^ ((~b[(x + 1) % 5]) & b[(x + 2) % 5]); ))
- // Iota
- a[0] ^= RC[i];
- }
-}
-
-/******** The FIPS202-defined functions. ********/
-
-/*** Some helper macros. ***/
-
-#define _(S) do { S } while (0)
-#define FOR(i, ST, L, S) \
- _(for (size_t i = 0; i < L; i += ST) { S; })
-#define mkapply_ds(NAME, S) \
- static inline void NAME(uint8_t* dst, \
- const uint8_t* src, \
- size_t len) { \
- FOR(i, 1, len, S); \
- }
-#define mkapply_sd(NAME, S) \
- static inline void NAME(const uint8_t* src, \
- uint8_t* dst, \
- size_t len) { \
- FOR(i, 1, len, S); \
- }
-
-mkapply_ds(xorin, dst[i] ^= src[i]) // xorin
-mkapply_sd(setout, dst[i] = src[i]) // setout
-
-#define P keccakf
-#define Plen 200
-
-// Fold P*F over the full blocks of an input.
-#define foldP(I, L, F) \
- while (L >= rate) { \
- F(a, I, rate); \
- P(a); \
- I += rate; \
- L -= rate; \
- }
-
-/** The sponge-based hash construction. **/
-inline void hash(
- uint8_t* out,
- size_t outlen,
- const uint8_t* in,
- size_t inlen,
- size_t rate,
- uint8_t delim
-)
-{
- uint8_t a[Plen] = {0};
- // Absorb input.
- foldP(in, inlen, xorin);
- // Xor in the DS and pad frame.
- a[inlen] ^= delim;
- a[rate - 1] ^= 0x80;
- // Xor in the last block.
- xorin(a, in, inlen);
- // Apply P
- P(a);
- // Squeeze output.
- foldP(out, outlen, setout);
- setout(a, out, outlen);
- memset(a, 0, 200);
-}
-
-}
-
-h256 keccak256(bytesConstRef _input)
-{
- h256 output;
- // Parameters used:
- // The 0x01 is the specific padding for keccak (sha3 uses 0x06) and
- // the way the round size (or window or whatever it was) is calculated.
- // 200 - (256 / 4) is the "rate"
- hash(output.data(), output.size, _input.data(), _input.size(), 200 - (256 / 4), 0x01);
- return output;
-}
-
-}