hash/blake: add traits units

This commit is contained in:
Danny Robson 2019-02-09 15:54:40 +11:00
parent cfc728a3a7
commit 46c0c81918
5 changed files with 164 additions and 139 deletions

View File

@ -37,6 +37,11 @@ foreach (c ${components})
list (APPEND sources "${c}.cpp" "${c}.hpp") list (APPEND sources "${c}.cpp" "${c}.hpp")
endforeach() endforeach()
list (APPEND sources
hash/blake/traits.cpp
hash/blake/traits.hpp
)
option (TESTS "enable unit testing" ON) option (TESTS "enable unit testing" ON)

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@ -18,92 +18,7 @@
#include <cstdint> #include <cstdint>
using cruft::crypto::hash::blake; using cruft::crypto::hash::blake;
using cruft::crypto::hash::traits; using cruft::crypto::hash::detail::blake::traits;
///////////////////////////////////////////////////////////////////////////////
const std::array<traits<256>::word_t,8>
traits<256>::iv
{
0x6A09E667, // frac(sqrt( 2))
0xBB67AE85, // frac(sqrt( 3))
0x3C6EF372, // frac(sqrt( 5))
0xA54FF53A, // frac(sqrt( 7))
0x510E527F, // frac(sqrt(11))
0x9B05688C, // frac(sqrt(13))
0x1F83D9AB, // frac(sqrt(17))
0x5BE0CD19, // frac(sqrt(19))
};
//-----------------------------------------------------------------------------
const std::array<traits<256>::word_t,16>
traits<256>::pi
{
0x243F6A88,
0x85A308D3,
0x13198A2E,
0x03707344,
0xA4093822,
0x299F31D0,
0x082EFA98,
0xEC4E6C89,
0x452821E6,
0x38D01377,
0xBE5466CF,
0x34E90C6C,
0xC0AC29B7,
0xC97C50DD,
0x3F84D5B5,
0xB5470917,
};
//-----------------------------------------------------------------------------
const std::array<int,4>
traits<256>::rotations {
16, 12, 8, 7
};
///////////////////////////////////////////////////////////////////////////////
const std::array<traits<512>::word_t,8>
traits<512>::iv {
0x6A09E667F3BCC908,
0xBB67AE8584CAA73B,
0x3C6EF372FE94F82B,
0xA54FF53A5F1D36F1,
0x510E527FADE682D1,
0x9B05688C2B3E6C1F,
0x1F83D9ABFB41BD6B,
0x5BE0CD19137E2179,
};
//-----------------------------------------------------------------------------
const std::array<traits<512>::word_t,16>
traits<512>::pi {
0x243F6A8885A308D3,
0x13198A2E03707344,
0xA4093822299F31D0,
0x082EFA98EC4E6C89,
0x452821E638D01377,
0xBE5466CF34E90C6C,
0xC0AC29B7C97C50DD,
0x3F84D5B5B5470917,
0x9216D5D98979FB1B,
0xD1310BA698DFB5AC,
0x2FFD72DBD01ADFB7,
0xB8E1AFED6A267E96,
0xBA7C9045F12C7F99,
0x24A19947B3916CF7,
0x0801F2E2858EFC16,
0x636920D871574E69,
};
//-----------------------------------------------------------------------------
const std::array<int,4> traits<512>::rotations { 32, 25, 16, 11 };
/////////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////////
@ -111,7 +26,7 @@ const std::array<int,4> traits<512>::rotations { 32, 25, 16, 11 };
// out a pretty frequent modulus operation. // out a pretty frequent modulus operation.
static constexpr static constexpr
int int
permute[16][16] = { permute[16][16] = {
{ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, }, { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, },
{ 14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3, }, { 14, 10, 4, 8, 9, 15, 13, 6, 1, 12, 0, 2, 11, 7, 5, 3, },
{ 11, 8, 12, 0, 5, 2, 15, 13, 10, 14, 3, 6, 7, 1, 9, 4, }, { 11, 8, 12, 0, 5, 2, 15, 13, 10, 14, 3, 6, 7, 1, 9, 4, },
@ -208,7 +123,7 @@ blake<width>::operator() (
cruft::view<const u08*> data, cruft::view<const u08*> data,
cruft::view<const u08*> salt cruft::view<const u08*> salt
) const { ) const {
std::array<typename traits<width>::word_t, 4> fwd {}; std::array<typename detail::blake::traits<width>::word_t, 4> fwd {};
if (salt.size () > sizeof (fwd)) if (salt.size () > sizeof (fwd))
throw std::invalid_argument ("oversized salt"); throw std::invalid_argument ("oversized salt");
@ -222,9 +137,9 @@ template <int width>
typename blake<width>::digest_t typename blake<width>::digest_t
blake<width>::operator() ( blake<width>::operator() (
cruft::view<const u08 *> data, cruft::view<const u08 *> data,
const std::array<typename traits<width>::word_t, 4> salt const std::array<typename detail::blake::traits<width>::word_t, 4> salt
) const noexcept { ) const noexcept {
auto h = traits<width>::iv; auto h = detail::blake::traits<width>::iv;
// bounce the message data through d08/dw so we can perform endian // bounce the message data through d08/dw so we can perform endian
// conversion. // conversion.

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@ -8,6 +8,8 @@
#pragma once #pragma once
#include "blake/traits.hpp"
#include <cruft/util/std.hpp> #include <cruft/util/std.hpp>
#include <cruft/util/view.hpp> #include <cruft/util/view.hpp>
@ -19,54 +21,6 @@
/////////////////////////////////////////////////////////////////////////////// ///////////////////////////////////////////////////////////////////////////////
namespace cruft::crypto::hash { namespace cruft::crypto::hash {
///////////////////////////////////////////////////////////////////////////
template <int>
struct traits {};
//-------------------------------------------------------------------------
template <>
struct traits<256>
{
using word_t = u32;
static const std::array<word_t,8> iv;
static const std::array<word_t,16> pi;
static const std::array<int,4> rotations;
static constexpr int rounds = 14;
};
//-------------------------------------------------------------------------
template <>
struct traits<224>
{
using word_t = traits<256>::word_t;
};
//-------------------------------------------------------------------------
template <>
struct traits<512>
{
using word_t = u64;
static const std::array<word_t,8> iv;
static const std::array<word_t,16> pi;
static const std::array<int,4> rotations;
static constexpr int rounds = 16;
};
//-------------------------------------------------------------------------
template <>
struct traits<384>
{
using word_t = traits<512>::word_t;
};
/// an implementation of the BLAKE hash function /// an implementation of the BLAKE hash function
/// ///
/// note that this is _not_ BLAKE2, but the original SHA-3 candidate /// note that this is _not_ BLAKE2, but the original SHA-3 candidate
@ -76,7 +30,7 @@ namespace cruft::crypto::hash {
template <int width> template <int width>
class blake { class blake {
public: public:
using word_t = typename traits<width>::word_t; using word_t = typename detail::blake::traits<width>::word_t;
// size of each round's data block in bytes // size of each round's data block in bytes
static const size_t block_size = 16 * sizeof (word_t); static const size_t block_size = 16 * sizeof (word_t);

88
hash/blake/traits.cpp Normal file
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@ -0,0 +1,88 @@
#include "traits.hpp"
using cruft::crypto::hash::detail::blake::traits;
///////////////////////////////////////////////////////////////////////////////
const std::array<traits<256>::word_t,8>
traits<256>::iv
{
0x6A09E667, // frac(sqrt( 2))
0xBB67AE85, // frac(sqrt( 3))
0x3C6EF372, // frac(sqrt( 5))
0xA54FF53A, // frac(sqrt( 7))
0x510E527F, // frac(sqrt(11))
0x9B05688C, // frac(sqrt(13))
0x1F83D9AB, // frac(sqrt(17))
0x5BE0CD19, // frac(sqrt(19))
};
//-----------------------------------------------------------------------------
const std::array<traits<256>::word_t,16>
traits<256>::pi
{
0x243F6A88,
0x85A308D3,
0x13198A2E,
0x03707344,
0xA4093822,
0x299F31D0,
0x082EFA98,
0xEC4E6C89,
0x452821E6,
0x38D01377,
0xBE5466CF,
0x34E90C6C,
0xC0AC29B7,
0xC97C50DD,
0x3F84D5B5,
0xB5470917,
};
//-----------------------------------------------------------------------------
const std::array<int,4>
traits<256>::rotations {
16, 12, 8, 7
};
///////////////////////////////////////////////////////////////////////////////
const std::array<traits<512>::word_t,8>
traits<512>::iv {
0x6A09E667F3BCC908,
0xBB67AE8584CAA73B,
0x3C6EF372FE94F82B,
0xA54FF53A5F1D36F1,
0x510E527FADE682D1,
0x9B05688C2B3E6C1F,
0x1F83D9ABFB41BD6B,
0x5BE0CD19137E2179,
};
//-----------------------------------------------------------------------------
const std::array<traits<512>::word_t,16>
traits<512>::pi {
0x243F6A8885A308D3,
0x13198A2E03707344,
0xA4093822299F31D0,
0x082EFA98EC4E6C89,
0x452821E638D01377,
0xBE5466CF34E90C6C,
0xC0AC29B7C97C50DD,
0x3F84D5B5B5470917,
0x9216D5D98979FB1B,
0xD1310BA698DFB5AC,
0x2FFD72DBD01ADFB7,
0xB8E1AFED6A267E96,
0xBA7C9045F12C7F99,
0x24A19947B3916CF7,
0x0801F2E2858EFC16,
0x636920D871574E69,
};
//-----------------------------------------------------------------------------
const std::array<int,4> traits<512>::rotations { 32, 25, 16, 11 };

63
hash/blake/traits.hpp Normal file
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@ -0,0 +1,63 @@
/*
* This Source Code Form is subject to the terms of the Mozilla Public
* License, v. 2.0. If a copy of the MPL was not distributed with this
* file, You can obtain one at http://mozilla.org/MPL/2.0/.
*
* Copyright 2018-2019 Danny Robson <danny@nerdcruft.net>
*/
#pragma once
#include <cruft/util/std.hpp>
#include <array>
namespace cruft::crypto::hash::detail {
namespace blake {
///////////////////////////////////////////////////////////////////////
template <int>
struct traits {};
//---------------------------------------------------------------------
template <>
struct traits<256>
{
using word_t = u32;
static const std::array<word_t,8> iv;
static const std::array<word_t,16> pi;
static const std::array<int,4> rotations;
static constexpr int rounds = 14;
};
//---------------------------------------------------------------------
template <>
struct traits<224>
{
using word_t = traits<256>::word_t;
};
//---------------------------------------------------------------------
template <>
struct traits<512>
{
using word_t = u64;
static const std::array<word_t,8> iv;
static const std::array<word_t,16> pi;
static const std::array<int,4> rotations;
static constexpr int rounds = 16;
};
//---------------------------------------------------------------------
template <>
struct traits<384>
{
using word_t = traits<512>::word_t;
};
}
};