1dd524151d
Tweak temp variables and constraints. Was working before if not inlined but newer gcc tends to inline it.
1284 lines
38 KiB
C
1284 lines
38 KiB
C
// Copyright (c) 2014-2017, The Monero Project
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//
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// All rights reserved.
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//
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// Redistribution and use in source and binary forms, with or without modification, are
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// permitted provided that the following conditions are met:
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//
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// 1. Redistributions of source code must retain the above copyright notice, this list of
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// conditions and the following disclaimer.
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//
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// 2. Redistributions in binary form must reproduce the above copyright notice, this list
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// of conditions and the following disclaimer in the documentation and/or other
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// materials provided with the distribution.
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//
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// 3. Neither the name of the copyright holder nor the names of its contributors may be
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// used to endorse or promote products derived from this software without specific
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// prior written permission.
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//
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// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
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// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
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// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
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// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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//
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// Parts of this file are originally copyright (c) 2012-2013 The Cryptonote developers
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#include <assert.h>
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#include <stddef.h>
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#include <stdint.h>
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#include <string.h>
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#include "common/int-util.h"
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#include "hash-ops.h"
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#include "oaes_lib.h"
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#define MEMORY (1 << 21) // 2MB scratchpad
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#define ITER (1 << 20)
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#define AES_BLOCK_SIZE 16
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#define AES_KEY_SIZE 32
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#define INIT_SIZE_BLK 8
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#define INIT_SIZE_BYTE (INIT_SIZE_BLK * AES_BLOCK_SIZE)
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extern int aesb_single_round(const uint8_t *in, uint8_t*out, const uint8_t *expandedKey);
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extern int aesb_pseudo_round(const uint8_t *in, uint8_t *out, const uint8_t *expandedKey);
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#if defined(__x86_64__) || (defined(_MSC_VER) && defined(_WIN64))
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// Optimised code below, uses x86-specific intrinsics, SSE2, AES-NI
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// Fall back to more portable code is down at the bottom
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#include <emmintrin.h>
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#if defined(_MSC_VER)
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#include <intrin.h>
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#include <windows.h>
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#define STATIC
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#define INLINE __inline
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#if !defined(RDATA_ALIGN16)
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#define RDATA_ALIGN16 __declspec(align(16))
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#endif
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#elif defined(__MINGW32__)
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#include <intrin.h>
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#include <windows.h>
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#define STATIC static
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#define INLINE inline
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#if !defined(RDATA_ALIGN16)
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#define RDATA_ALIGN16 __attribute__ ((aligned(16)))
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#endif
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#else
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#include <wmmintrin.h>
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#include <sys/mman.h>
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#define STATIC static
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#define INLINE inline
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#if !defined(RDATA_ALIGN16)
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#define RDATA_ALIGN16 __attribute__ ((aligned(16)))
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#endif
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#endif
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#if defined(__INTEL_COMPILER)
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#define ASM __asm__
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#elif !defined(_MSC_VER)
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#define ASM __asm__
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#else
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#define ASM __asm
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#endif
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#define TOTALBLOCKS (MEMORY / AES_BLOCK_SIZE)
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#define U64(x) ((uint64_t *) (x))
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#define R128(x) ((__m128i *) (x))
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#define state_index(x) (((*((uint64_t *)x) >> 4) & (TOTALBLOCKS - 1)) << 4)
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#if defined(_MSC_VER)
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#if !defined(_WIN64)
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#define __mul() lo = mul128(c[0], b[0], &hi);
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#else
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#define __mul() lo = _umul128(c[0], b[0], &hi);
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#endif
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#else
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#if defined(__x86_64__)
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#define __mul() ASM("mulq %3\n\t" : "=d"(hi), "=a"(lo) : "%a" (c[0]), "rm" (b[0]) : "cc");
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#else
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#define __mul() lo = mul128(c[0], b[0], &hi);
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#endif
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#endif
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#define pre_aes() \
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j = state_index(a); \
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_c = _mm_load_si128(R128(&hp_state[j])); \
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_a = _mm_load_si128(R128(a)); \
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/*
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* An SSE-optimized implementation of the second half of CryptoNight step 3.
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* After using AES to mix a scratchpad value into _c (done by the caller),
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* this macro xors it with _b and stores the result back to the same index (j) that it
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* loaded the scratchpad value from. It then performs a second random memory
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* read/write from the scratchpad, but this time mixes the values using a 64
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* bit multiply.
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* This code is based upon an optimized implementation by dga.
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*/
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#define post_aes() \
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_mm_store_si128(R128(c), _c); \
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_b = _mm_xor_si128(_b, _c); \
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_mm_store_si128(R128(&hp_state[j]), _b); \
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j = state_index(c); \
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p = U64(&hp_state[j]); \
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b[0] = p[0]; b[1] = p[1]; \
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__mul(); \
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a[0] += hi; a[1] += lo; \
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p = U64(&hp_state[j]); \
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p[0] = a[0]; p[1] = a[1]; \
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a[0] ^= b[0]; a[1] ^= b[1]; \
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_b = _c; \
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#if defined(_MSC_VER)
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#define THREADV __declspec(thread)
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#else
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#define THREADV __thread
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#endif
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#pragma pack(push, 1)
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union cn_slow_hash_state
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{
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union hash_state hs;
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struct
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{
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uint8_t k[64];
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uint8_t init[INIT_SIZE_BYTE];
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};
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};
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#pragma pack(pop)
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THREADV uint8_t *hp_state = NULL;
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THREADV int hp_allocated = 0;
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#if defined(_MSC_VER)
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#define cpuid(info,x) __cpuidex(info,x,0)
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#else
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void cpuid(int CPUInfo[4], int InfoType)
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{
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ASM __volatile__
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(
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"cpuid":
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"=a" (CPUInfo[0]),
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"=b" (CPUInfo[1]),
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"=c" (CPUInfo[2]),
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"=d" (CPUInfo[3]) :
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"a" (InfoType), "c" (0)
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);
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}
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#endif
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/**
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* @brief a = (a xor b), where a and b point to 128 bit values
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*/
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STATIC INLINE void xor_blocks(uint8_t *a, const uint8_t *b)
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{
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U64(a)[0] ^= U64(b)[0];
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U64(a)[1] ^= U64(b)[1];
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}
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/**
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* @brief uses cpuid to determine if the CPU supports the AES instructions
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* @return true if the CPU supports AES, false otherwise
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*/
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STATIC INLINE int force_software_aes(void)
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{
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static int use = -1;
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if (use != -1)
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return use;
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const char *env = getenv("MONERO_USE_SOFTWARE_AES");
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if (!env) {
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use = 0;
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}
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else if (!strcmp(env, "0") || !strcmp(env, "no")) {
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use = 0;
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}
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else {
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use = 1;
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}
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return use;
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}
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STATIC INLINE int check_aes_hw(void)
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{
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int cpuid_results[4];
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static int supported = -1;
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if(supported >= 0)
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return supported;
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cpuid(cpuid_results,1);
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return supported = cpuid_results[2] & (1 << 25);
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}
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STATIC INLINE void aes_256_assist1(__m128i* t1, __m128i * t2)
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{
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__m128i t4;
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*t2 = _mm_shuffle_epi32(*t2, 0xff);
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t4 = _mm_slli_si128(*t1, 0x04);
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*t1 = _mm_xor_si128(*t1, t4);
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t4 = _mm_slli_si128(t4, 0x04);
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*t1 = _mm_xor_si128(*t1, t4);
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t4 = _mm_slli_si128(t4, 0x04);
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*t1 = _mm_xor_si128(*t1, t4);
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*t1 = _mm_xor_si128(*t1, *t2);
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}
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STATIC INLINE void aes_256_assist2(__m128i* t1, __m128i * t3)
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{
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__m128i t2, t4;
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t4 = _mm_aeskeygenassist_si128(*t1, 0x00);
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t2 = _mm_shuffle_epi32(t4, 0xaa);
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t4 = _mm_slli_si128(*t3, 0x04);
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*t3 = _mm_xor_si128(*t3, t4);
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t4 = _mm_slli_si128(t4, 0x04);
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*t3 = _mm_xor_si128(*t3, t4);
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t4 = _mm_slli_si128(t4, 0x04);
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*t3 = _mm_xor_si128(*t3, t4);
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*t3 = _mm_xor_si128(*t3, t2);
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}
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/**
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* @brief expands 'key' into a form it can be used for AES encryption.
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*
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* This is an SSE-optimized implementation of AES key schedule generation. It
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* expands the key into multiple round keys, each of which is used in one round
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* of the AES encryption used to fill (and later, extract randomness from)
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* the large 2MB buffer. Note that CryptoNight does not use a completely
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* standard AES encryption for its buffer expansion, so do not copy this
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* function outside of Monero without caution! This version uses the hardware
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* AESKEYGENASSIST instruction to speed key generation, and thus requires
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* CPU AES support.
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* For more information about these functions, see page 19 of Intel's AES instructions
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* white paper:
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* http://www.intel.com/content/dam/www/public/us/en/documents/white-papers/aes-instructions-set-white-paper.pdf
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*
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* @param key the input 128 bit key
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* @param expandedKey An output buffer to hold the generated key schedule
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*/
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STATIC INLINE void aes_expand_key(const uint8_t *key, uint8_t *expandedKey)
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{
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__m128i *ek = R128(expandedKey);
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__m128i t1, t2, t3;
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t1 = _mm_loadu_si128(R128(key));
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t3 = _mm_loadu_si128(R128(key + 16));
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ek[0] = t1;
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ek[1] = t3;
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t2 = _mm_aeskeygenassist_si128(t3, 0x01);
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aes_256_assist1(&t1, &t2);
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ek[2] = t1;
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aes_256_assist2(&t1, &t3);
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ek[3] = t3;
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t2 = _mm_aeskeygenassist_si128(t3, 0x02);
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aes_256_assist1(&t1, &t2);
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ek[4] = t1;
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aes_256_assist2(&t1, &t3);
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ek[5] = t3;
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t2 = _mm_aeskeygenassist_si128(t3, 0x04);
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aes_256_assist1(&t1, &t2);
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ek[6] = t1;
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aes_256_assist2(&t1, &t3);
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ek[7] = t3;
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t2 = _mm_aeskeygenassist_si128(t3, 0x08);
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aes_256_assist1(&t1, &t2);
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ek[8] = t1;
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aes_256_assist2(&t1, &t3);
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ek[9] = t3;
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t2 = _mm_aeskeygenassist_si128(t3, 0x10);
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aes_256_assist1(&t1, &t2);
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ek[10] = t1;
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}
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/**
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* @brief a "pseudo" round of AES (similar to but slightly different from normal AES encryption)
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*
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* To fill its 2MB scratch buffer, CryptoNight uses a nonstandard implementation
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* of AES encryption: It applies 10 rounds of the basic AES encryption operation
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* to an input 128 bit chunk of data <in>. Unlike normal AES, however, this is
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* all it does; it does not perform the initial AddRoundKey step (this is done
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* in subsequent steps by aesenc_si128), and it does not use the simpler final round.
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* Hence, this is a "pseudo" round - though the function actually implements 10 rounds together.
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*
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* Note that unlike aesb_pseudo_round, this function works on multiple data chunks.
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*
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* @param in a pointer to nblocks * 128 bits of data to be encrypted
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* @param out a pointer to an nblocks * 128 bit buffer where the output will be stored
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* @param expandedKey the expanded AES key
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* @param nblocks the number of 128 blocks of data to be encrypted
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*/
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STATIC INLINE void aes_pseudo_round(const uint8_t *in, uint8_t *out,
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const uint8_t *expandedKey, int nblocks)
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{
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__m128i *k = R128(expandedKey);
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__m128i d;
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int i;
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for(i = 0; i < nblocks; i++)
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{
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d = _mm_loadu_si128(R128(in + i * AES_BLOCK_SIZE));
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d = _mm_aesenc_si128(d, *R128(&k[0]));
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d = _mm_aesenc_si128(d, *R128(&k[1]));
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d = _mm_aesenc_si128(d, *R128(&k[2]));
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d = _mm_aesenc_si128(d, *R128(&k[3]));
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d = _mm_aesenc_si128(d, *R128(&k[4]));
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d = _mm_aesenc_si128(d, *R128(&k[5]));
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d = _mm_aesenc_si128(d, *R128(&k[6]));
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d = _mm_aesenc_si128(d, *R128(&k[7]));
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d = _mm_aesenc_si128(d, *R128(&k[8]));
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d = _mm_aesenc_si128(d, *R128(&k[9]));
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_mm_storeu_si128((R128(out + i * AES_BLOCK_SIZE)), d);
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}
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}
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/**
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* @brief aes_pseudo_round that loads data from *in and xors it with *xor first
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*
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* This function performs the same operations as aes_pseudo_round, but before
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* performing the encryption of each 128 bit block from <in>, it xors
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* it with the corresponding block from <xor>.
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*
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* @param in a pointer to nblocks * 128 bits of data to be encrypted
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* @param out a pointer to an nblocks * 128 bit buffer where the output will be stored
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* @param expandedKey the expanded AES key
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* @param xor a pointer to an nblocks * 128 bit buffer that is xored into in before encryption (in is left unmodified)
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* @param nblocks the number of 128 blocks of data to be encrypted
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*/
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STATIC INLINE void aes_pseudo_round_xor(const uint8_t *in, uint8_t *out,
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const uint8_t *expandedKey, const uint8_t *xor, int nblocks)
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{
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__m128i *k = R128(expandedKey);
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__m128i *x = R128(xor);
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__m128i d;
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int i;
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for(i = 0; i < nblocks; i++)
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{
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d = _mm_loadu_si128(R128(in + i * AES_BLOCK_SIZE));
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d = _mm_xor_si128(d, *R128(x++));
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d = _mm_aesenc_si128(d, *R128(&k[0]));
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d = _mm_aesenc_si128(d, *R128(&k[1]));
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d = _mm_aesenc_si128(d, *R128(&k[2]));
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d = _mm_aesenc_si128(d, *R128(&k[3]));
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d = _mm_aesenc_si128(d, *R128(&k[4]));
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d = _mm_aesenc_si128(d, *R128(&k[5]));
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d = _mm_aesenc_si128(d, *R128(&k[6]));
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d = _mm_aesenc_si128(d, *R128(&k[7]));
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d = _mm_aesenc_si128(d, *R128(&k[8]));
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d = _mm_aesenc_si128(d, *R128(&k[9]));
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_mm_storeu_si128((R128(out + i * AES_BLOCK_SIZE)), d);
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}
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}
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#if defined(_MSC_VER) || defined(__MINGW32__)
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BOOL SetLockPagesPrivilege(HANDLE hProcess, BOOL bEnable)
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{
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struct
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{
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DWORD count;
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LUID_AND_ATTRIBUTES privilege[1];
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} info;
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HANDLE token;
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if(!OpenProcessToken(hProcess, TOKEN_ADJUST_PRIVILEGES, &token))
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return FALSE;
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info.count = 1;
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info.privilege[0].Attributes = bEnable ? SE_PRIVILEGE_ENABLED : 0;
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if(!LookupPrivilegeValue(NULL, SE_LOCK_MEMORY_NAME, &(info.privilege[0].Luid)))
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return FALSE;
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if(!AdjustTokenPrivileges(token, FALSE, (PTOKEN_PRIVILEGES) &info, 0, NULL, NULL))
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return FALSE;
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if (GetLastError() != ERROR_SUCCESS)
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return FALSE;
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CloseHandle(token);
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return TRUE;
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}
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#endif
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/**
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* @brief allocate the 2MB scratch buffer using OS support for huge pages, if available
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*
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* This function tries to allocate the 2MB scratch buffer using a single
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* 2MB "huge page" (instead of the usual 4KB page sizes) to reduce TLB misses
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* during the random accesses to the scratch buffer. This is one of the
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* important speed optimizations needed to make CryptoNight faster.
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*
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* No parameters. Updates a thread-local pointer, hp_state, to point to
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* the allocated buffer.
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*/
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void slow_hash_allocate_state(void)
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{
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if(hp_state != NULL)
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return;
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#if defined(_MSC_VER) || defined(__MINGW32__)
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SetLockPagesPrivilege(GetCurrentProcess(), TRUE);
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hp_state = (uint8_t *) VirtualAlloc(hp_state, MEMORY, MEM_LARGE_PAGES |
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MEM_COMMIT | MEM_RESERVE, PAGE_READWRITE);
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#else
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#if defined(__APPLE__) || defined(__FreeBSD__) || defined(__OpenBSD__) || \
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defined(__DragonFly__)
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hp_state = mmap(0, MEMORY, PROT_READ | PROT_WRITE,
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MAP_PRIVATE | MAP_ANON, 0, 0);
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#else
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hp_state = mmap(0, MEMORY, PROT_READ | PROT_WRITE,
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MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB, 0, 0);
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#endif
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if(hp_state == MAP_FAILED)
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hp_state = NULL;
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#endif
|
|
hp_allocated = 1;
|
|
if(hp_state == NULL)
|
|
{
|
|
hp_allocated = 0;
|
|
hp_state = (uint8_t *) malloc(MEMORY);
|
|
}
|
|
}
|
|
|
|
/**
|
|
*@brief frees the state allocated by slow_hash_allocate_state
|
|
*/
|
|
|
|
void slow_hash_free_state(void)
|
|
{
|
|
if(hp_state == NULL)
|
|
return;
|
|
|
|
if(!hp_allocated)
|
|
free(hp_state);
|
|
else
|
|
{
|
|
#if defined(_MSC_VER) || defined(__MINGW32__)
|
|
VirtualFree(hp_state, MEMORY, MEM_RELEASE);
|
|
#else
|
|
munmap(hp_state, MEMORY);
|
|
#endif
|
|
}
|
|
|
|
hp_state = NULL;
|
|
hp_allocated = 0;
|
|
}
|
|
|
|
/**
|
|
* @brief the hash function implementing CryptoNight, used for the Monero proof-of-work
|
|
*
|
|
* Computes the hash of <data> (which consists of <length> bytes), returning the
|
|
* hash in <hash>. The CryptoNight hash operates by first using Keccak 1600,
|
|
* the 1600 bit variant of the Keccak hash used in SHA-3, to create a 200 byte
|
|
* buffer of pseudorandom data by hashing the supplied data. It then uses this
|
|
* random data to fill a large 2MB buffer with pseudorandom data by iteratively
|
|
* encrypting it using 10 rounds of AES per entry. After this initialization,
|
|
* it executes 524,288 rounds of mixing through the random 2MB buffer using
|
|
* AES (typically provided in hardware on modern CPUs) and a 64 bit multiply.
|
|
* Finally, it re-mixes this large buffer back into
|
|
* the 200 byte "text" buffer, and then hashes this buffer using one of four
|
|
* pseudorandomly selected hash functions (Blake, Groestl, JH, or Skein)
|
|
* to populate the output.
|
|
*
|
|
* The 2MB buffer and choice of functions for mixing are designed to make the
|
|
* algorithm "CPU-friendly" (and thus, reduce the advantage of GPU, FPGA,
|
|
* or ASIC-based implementations): the functions used are fast on modern
|
|
* CPUs, and the 2MB size matches the typical amount of L3 cache available per
|
|
* core on 2013-era CPUs. When available, this implementation will use hardware
|
|
* AES support on x86 CPUs.
|
|
*
|
|
* A diagram of the inner loop of this function can be found at
|
|
* http://www.cs.cmu.edu/~dga/crypto/xmr/cryptonight.png
|
|
*
|
|
* @param data the data to hash
|
|
* @param length the length in bytes of the data
|
|
* @param hash a pointer to a buffer in which the final 256 bit hash will be stored
|
|
*/
|
|
|
|
void cn_slow_hash(const void *data, size_t length, char *hash)
|
|
{
|
|
RDATA_ALIGN16 uint8_t expandedKey[240]; /* These buffers are aligned to use later with SSE functions */
|
|
|
|
uint8_t text[INIT_SIZE_BYTE];
|
|
RDATA_ALIGN16 uint64_t a[2];
|
|
RDATA_ALIGN16 uint64_t b[2];
|
|
RDATA_ALIGN16 uint64_t c[2];
|
|
union cn_slow_hash_state state;
|
|
__m128i _a, _b, _c;
|
|
uint64_t hi, lo;
|
|
|
|
size_t i, j;
|
|
uint64_t *p = NULL;
|
|
oaes_ctx *aes_ctx = NULL;
|
|
int useAes = !force_software_aes() && check_aes_hw();
|
|
|
|
static void (*const extra_hashes[4])(const void *, size_t, char *) =
|
|
{
|
|
hash_extra_blake, hash_extra_groestl, hash_extra_jh, hash_extra_skein
|
|
};
|
|
|
|
// this isn't supposed to happen, but guard against it for now.
|
|
if(hp_state == NULL)
|
|
slow_hash_allocate_state();
|
|
|
|
/* CryptoNight Step 1: Use Keccak1600 to initialize the 'state' (and 'text') buffers from the data. */
|
|
|
|
hash_process(&state.hs, data, length);
|
|
memcpy(text, state.init, INIT_SIZE_BYTE);
|
|
|
|
/* CryptoNight Step 2: Iteratively encrypt the results from Keccak to fill
|
|
* the 2MB large random access buffer.
|
|
*/
|
|
|
|
if(useAes)
|
|
{
|
|
aes_expand_key(state.hs.b, expandedKey);
|
|
for(i = 0; i < MEMORY / INIT_SIZE_BYTE; i++)
|
|
{
|
|
aes_pseudo_round(text, text, expandedKey, INIT_SIZE_BLK);
|
|
memcpy(&hp_state[i * INIT_SIZE_BYTE], text, INIT_SIZE_BYTE);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
aes_ctx = (oaes_ctx *) oaes_alloc();
|
|
oaes_key_import_data(aes_ctx, state.hs.b, AES_KEY_SIZE);
|
|
for(i = 0; i < MEMORY / INIT_SIZE_BYTE; i++)
|
|
{
|
|
for(j = 0; j < INIT_SIZE_BLK; j++)
|
|
aesb_pseudo_round(&text[AES_BLOCK_SIZE * j], &text[AES_BLOCK_SIZE * j], aes_ctx->key->exp_data);
|
|
|
|
memcpy(&hp_state[i * INIT_SIZE_BYTE], text, INIT_SIZE_BYTE);
|
|
}
|
|
}
|
|
|
|
U64(a)[0] = U64(&state.k[0])[0] ^ U64(&state.k[32])[0];
|
|
U64(a)[1] = U64(&state.k[0])[1] ^ U64(&state.k[32])[1];
|
|
U64(b)[0] = U64(&state.k[16])[0] ^ U64(&state.k[48])[0];
|
|
U64(b)[1] = U64(&state.k[16])[1] ^ U64(&state.k[48])[1];
|
|
|
|
/* CryptoNight Step 3: Bounce randomly 1,048,576 times (1<<20) through the mixing buffer,
|
|
* using 524,288 iterations of the following mixing function. Each execution
|
|
* performs two reads and writes from the mixing buffer.
|
|
*/
|
|
|
|
_b = _mm_load_si128(R128(b));
|
|
// Two independent versions, one with AES, one without, to ensure that
|
|
// the useAes test is only performed once, not every iteration.
|
|
if(useAes)
|
|
{
|
|
for(i = 0; i < ITER / 2; i++)
|
|
{
|
|
pre_aes();
|
|
_c = _mm_aesenc_si128(_c, _a);
|
|
post_aes();
|
|
}
|
|
}
|
|
else
|
|
{
|
|
for(i = 0; i < ITER / 2; i++)
|
|
{
|
|
pre_aes();
|
|
aesb_single_round((uint8_t *) &_c, (uint8_t *) &_c, (uint8_t *) &_a);
|
|
post_aes();
|
|
}
|
|
}
|
|
|
|
/* CryptoNight Step 4: Sequentially pass through the mixing buffer and use 10 rounds
|
|
* of AES encryption to mix the random data back into the 'text' buffer. 'text'
|
|
* was originally created with the output of Keccak1600. */
|
|
|
|
memcpy(text, state.init, INIT_SIZE_BYTE);
|
|
if(useAes)
|
|
{
|
|
aes_expand_key(&state.hs.b[32], expandedKey);
|
|
for(i = 0; i < MEMORY / INIT_SIZE_BYTE; i++)
|
|
{
|
|
// add the xor to the pseudo round
|
|
aes_pseudo_round_xor(text, text, expandedKey, &hp_state[i * INIT_SIZE_BYTE], INIT_SIZE_BLK);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
oaes_key_import_data(aes_ctx, &state.hs.b[32], AES_KEY_SIZE);
|
|
for(i = 0; i < MEMORY / INIT_SIZE_BYTE; i++)
|
|
{
|
|
for(j = 0; j < INIT_SIZE_BLK; j++)
|
|
{
|
|
xor_blocks(&text[j * AES_BLOCK_SIZE], &hp_state[i * INIT_SIZE_BYTE + j * AES_BLOCK_SIZE]);
|
|
aesb_pseudo_round(&text[AES_BLOCK_SIZE * j], &text[AES_BLOCK_SIZE * j], aes_ctx->key->exp_data);
|
|
}
|
|
}
|
|
oaes_free((OAES_CTX **) &aes_ctx);
|
|
}
|
|
|
|
/* CryptoNight Step 5: Apply Keccak to the state again, and then
|
|
* use the resulting data to select which of four finalizer
|
|
* hash functions to apply to the data (Blake, Groestl, JH, or Skein).
|
|
* Use this hash to squeeze the state array down
|
|
* to the final 256 bit hash output.
|
|
*/
|
|
|
|
memcpy(state.init, text, INIT_SIZE_BYTE);
|
|
hash_permutation(&state.hs);
|
|
extra_hashes[state.hs.b[0] & 3](&state, 200, hash);
|
|
}
|
|
|
|
#elif defined(__arm__) || defined(__aarch64__)
|
|
void slow_hash_allocate_state(void)
|
|
{
|
|
// Do nothing, this is just to maintain compatibility with the upgraded slow-hash.c
|
|
return;
|
|
}
|
|
|
|
void slow_hash_free_state(void)
|
|
{
|
|
// As above
|
|
return;
|
|
}
|
|
|
|
#if defined(__GNUC__)
|
|
#define RDATA_ALIGN16 __attribute__ ((aligned(16)))
|
|
#define STATIC static
|
|
#define INLINE inline
|
|
#else
|
|
#define RDATA_ALIGN16
|
|
#define STATIC static
|
|
#define INLINE
|
|
#endif
|
|
|
|
#define U64(x) ((uint64_t *) (x))
|
|
|
|
#pragma pack(push, 1)
|
|
union cn_slow_hash_state
|
|
{
|
|
union hash_state hs;
|
|
struct
|
|
{
|
|
uint8_t k[64];
|
|
uint8_t init[INIT_SIZE_BYTE];
|
|
};
|
|
};
|
|
#pragma pack(pop)
|
|
|
|
#if defined(__aarch64__) && defined(__ARM_FEATURE_CRYPTO)
|
|
|
|
/* ARMv8-A optimized with NEON and AES instructions.
|
|
* Copied from the x86-64 AES-NI implementation. It has much the same
|
|
* characteristics as x86-64: there's no 64x64=128 multiplier for vectors,
|
|
* and moving between vector and regular registers stalls the pipeline.
|
|
*/
|
|
#include <arm_neon.h>
|
|
|
|
#define TOTALBLOCKS (MEMORY / AES_BLOCK_SIZE)
|
|
|
|
#define state_index(x) (((*((uint64_t *)x) >> 4) & (TOTALBLOCKS - 1)) << 4)
|
|
#define __mul() __asm__("mul %0, %1, %2\n\t" : "=r"(lo) : "r"(c[0]), "r"(b[0]) ); \
|
|
__asm__("umulh %0, %1, %2\n\t" : "=r"(hi) : "r"(c[0]), "r"(b[0]) );
|
|
|
|
#define pre_aes() \
|
|
j = state_index(a); \
|
|
_c = vld1q_u8(&hp_state[j]); \
|
|
_a = vld1q_u8((const uint8_t *)a); \
|
|
|
|
#define post_aes() \
|
|
vst1q_u8((uint8_t *)c, _c); \
|
|
_b = veorq_u8(_b, _c); \
|
|
vst1q_u8(&hp_state[j], _b); \
|
|
j = state_index(c); \
|
|
p = U64(&hp_state[j]); \
|
|
b[0] = p[0]; b[1] = p[1]; \
|
|
__mul(); \
|
|
a[0] += hi; a[1] += lo; \
|
|
p = U64(&hp_state[j]); \
|
|
p[0] = a[0]; p[1] = a[1]; \
|
|
a[0] ^= b[0]; a[1] ^= b[1]; \
|
|
_b = _c; \
|
|
|
|
|
|
/* Note: this was based on a standard 256bit key schedule but
|
|
* it's been shortened since Cryptonight doesn't use the full
|
|
* key schedule. Don't try to use this for vanilla AES.
|
|
*/
|
|
static void aes_expand_key(const uint8_t *key, uint8_t *expandedKey) {
|
|
static const int rcon[] = {
|
|
0x01,0x01,0x01,0x01,
|
|
0x0c0f0e0d,0x0c0f0e0d,0x0c0f0e0d,0x0c0f0e0d, // rotate-n-splat
|
|
0x1b,0x1b,0x1b,0x1b };
|
|
__asm__(
|
|
" eor v0.16b,v0.16b,v0.16b\n"
|
|
" ld1 {v3.16b},[%0],#16\n"
|
|
" ld1 {v1.4s,v2.4s},[%2],#32\n"
|
|
" ld1 {v4.16b},[%0]\n"
|
|
" mov w2,#5\n"
|
|
" st1 {v3.4s},[%1],#16\n"
|
|
"\n"
|
|
"1:\n"
|
|
" tbl v6.16b,{v4.16b},v2.16b\n"
|
|
" ext v5.16b,v0.16b,v3.16b,#12\n"
|
|
" st1 {v4.4s},[%1],#16\n"
|
|
" aese v6.16b,v0.16b\n"
|
|
" subs w2,w2,#1\n"
|
|
"\n"
|
|
" eor v3.16b,v3.16b,v5.16b\n"
|
|
" ext v5.16b,v0.16b,v5.16b,#12\n"
|
|
" eor v3.16b,v3.16b,v5.16b\n"
|
|
" ext v5.16b,v0.16b,v5.16b,#12\n"
|
|
" eor v6.16b,v6.16b,v1.16b\n"
|
|
" eor v3.16b,v3.16b,v5.16b\n"
|
|
" shl v1.16b,v1.16b,#1\n"
|
|
" eor v3.16b,v3.16b,v6.16b\n"
|
|
" st1 {v3.4s},[%1],#16\n"
|
|
" b.eq 2f\n"
|
|
"\n"
|
|
" dup v6.4s,v3.s[3] // just splat\n"
|
|
" ext v5.16b,v0.16b,v4.16b,#12\n"
|
|
" aese v6.16b,v0.16b\n"
|
|
"\n"
|
|
" eor v4.16b,v4.16b,v5.16b\n"
|
|
" ext v5.16b,v0.16b,v5.16b,#12\n"
|
|
" eor v4.16b,v4.16b,v5.16b\n"
|
|
" ext v5.16b,v0.16b,v5.16b,#12\n"
|
|
" eor v4.16b,v4.16b,v5.16b\n"
|
|
"\n"
|
|
" eor v4.16b,v4.16b,v6.16b\n"
|
|
" b 1b\n"
|
|
"\n"
|
|
"2:\n" : : "r"(key), "r"(expandedKey), "r"(rcon));
|
|
}
|
|
|
|
/* An ordinary AES round is a sequence of SubBytes, ShiftRows, MixColumns, AddRoundKey. There
|
|
* is also an InitialRound which consists solely of AddRoundKey. The ARM instructions slice
|
|
* this sequence differently; the aese instruction performs AddRoundKey, SubBytes, ShiftRows.
|
|
* The aesmc instruction does the MixColumns. Since the aese instruction moves the AddRoundKey
|
|
* up front, and Cryptonight's hash skips the InitialRound step, we have to kludge it here by
|
|
* feeding in a vector of zeros for our first step. Also we have to do our own Xor explicitly
|
|
* at the last step, to provide the AddRoundKey that the ARM instructions omit.
|
|
*/
|
|
STATIC INLINE void aes_pseudo_round(const uint8_t *in, uint8_t *out, const uint8_t *expandedKey, int nblocks)
|
|
{
|
|
const uint8x16_t *k = (const uint8x16_t *)expandedKey, zero = {0};
|
|
uint8x16_t tmp;
|
|
int i;
|
|
|
|
for (i=0; i<nblocks; i++)
|
|
{
|
|
uint8x16_t tmp = vld1q_u8(in + i * AES_BLOCK_SIZE);
|
|
tmp = vaeseq_u8(tmp, zero);
|
|
tmp = vaesmcq_u8(tmp);
|
|
tmp = vaeseq_u8(tmp, k[0]);
|
|
tmp = vaesmcq_u8(tmp);
|
|
tmp = vaeseq_u8(tmp, k[1]);
|
|
tmp = vaesmcq_u8(tmp);
|
|
tmp = vaeseq_u8(tmp, k[2]);
|
|
tmp = vaesmcq_u8(tmp);
|
|
tmp = vaeseq_u8(tmp, k[3]);
|
|
tmp = vaesmcq_u8(tmp);
|
|
tmp = vaeseq_u8(tmp, k[4]);
|
|
tmp = vaesmcq_u8(tmp);
|
|
tmp = vaeseq_u8(tmp, k[5]);
|
|
tmp = vaesmcq_u8(tmp);
|
|
tmp = vaeseq_u8(tmp, k[6]);
|
|
tmp = vaesmcq_u8(tmp);
|
|
tmp = vaeseq_u8(tmp, k[7]);
|
|
tmp = vaesmcq_u8(tmp);
|
|
tmp = vaeseq_u8(tmp, k[8]);
|
|
tmp = vaesmcq_u8(tmp);
|
|
tmp = veorq_u8(tmp, k[9]);
|
|
vst1q_u8(out + i * AES_BLOCK_SIZE, tmp);
|
|
}
|
|
}
|
|
|
|
STATIC INLINE void aes_pseudo_round_xor(const uint8_t *in, uint8_t *out, const uint8_t *expandedKey, const uint8_t *xor, int nblocks)
|
|
{
|
|
const uint8x16_t *k = (const uint8x16_t *)expandedKey;
|
|
const uint8x16_t *x = (const uint8x16_t *)xor;
|
|
uint8x16_t tmp;
|
|
int i;
|
|
|
|
for (i=0; i<nblocks; i++)
|
|
{
|
|
uint8x16_t tmp = vld1q_u8(in + i * AES_BLOCK_SIZE);
|
|
tmp = vaeseq_u8(tmp, x[i]);
|
|
tmp = vaesmcq_u8(tmp);
|
|
tmp = vaeseq_u8(tmp, k[0]);
|
|
tmp = vaesmcq_u8(tmp);
|
|
tmp = vaeseq_u8(tmp, k[1]);
|
|
tmp = vaesmcq_u8(tmp);
|
|
tmp = vaeseq_u8(tmp, k[2]);
|
|
tmp = vaesmcq_u8(tmp);
|
|
tmp = vaeseq_u8(tmp, k[3]);
|
|
tmp = vaesmcq_u8(tmp);
|
|
tmp = vaeseq_u8(tmp, k[4]);
|
|
tmp = vaesmcq_u8(tmp);
|
|
tmp = vaeseq_u8(tmp, k[5]);
|
|
tmp = vaesmcq_u8(tmp);
|
|
tmp = vaeseq_u8(tmp, k[6]);
|
|
tmp = vaesmcq_u8(tmp);
|
|
tmp = vaeseq_u8(tmp, k[7]);
|
|
tmp = vaesmcq_u8(tmp);
|
|
tmp = vaeseq_u8(tmp, k[8]);
|
|
tmp = vaesmcq_u8(tmp);
|
|
tmp = veorq_u8(tmp, k[9]);
|
|
vst1q_u8(out + i * AES_BLOCK_SIZE, tmp);
|
|
}
|
|
}
|
|
|
|
void cn_slow_hash(const void *data, size_t length, char *hash)
|
|
{
|
|
RDATA_ALIGN16 uint8_t expandedKey[240];
|
|
RDATA_ALIGN16 uint8_t hp_state[MEMORY];
|
|
|
|
uint8_t text[INIT_SIZE_BYTE];
|
|
RDATA_ALIGN16 uint64_t a[2];
|
|
RDATA_ALIGN16 uint64_t b[2];
|
|
RDATA_ALIGN16 uint64_t c[2];
|
|
union cn_slow_hash_state state;
|
|
uint8x16_t _a, _b, _c, zero = {0};
|
|
uint64_t hi, lo;
|
|
|
|
size_t i, j;
|
|
uint64_t *p = NULL;
|
|
|
|
static void (*const extra_hashes[4])(const void *, size_t, char *) =
|
|
{
|
|
hash_extra_blake, hash_extra_groestl, hash_extra_jh, hash_extra_skein
|
|
};
|
|
|
|
/* CryptoNight Step 1: Use Keccak1600 to initialize the 'state' (and 'text') buffers from the data. */
|
|
|
|
hash_process(&state.hs, data, length);
|
|
memcpy(text, state.init, INIT_SIZE_BYTE);
|
|
|
|
/* CryptoNight Step 2: Iteratively encrypt the results from Keccak to fill
|
|
* the 2MB large random access buffer.
|
|
*/
|
|
|
|
aes_expand_key(state.hs.b, expandedKey);
|
|
for(i = 0; i < MEMORY / INIT_SIZE_BYTE; i++)
|
|
{
|
|
aes_pseudo_round(text, text, expandedKey, INIT_SIZE_BLK);
|
|
memcpy(&hp_state[i * INIT_SIZE_BYTE], text, INIT_SIZE_BYTE);
|
|
}
|
|
|
|
U64(a)[0] = U64(&state.k[0])[0] ^ U64(&state.k[32])[0];
|
|
U64(a)[1] = U64(&state.k[0])[1] ^ U64(&state.k[32])[1];
|
|
U64(b)[0] = U64(&state.k[16])[0] ^ U64(&state.k[48])[0];
|
|
U64(b)[1] = U64(&state.k[16])[1] ^ U64(&state.k[48])[1];
|
|
|
|
/* CryptoNight Step 3: Bounce randomly 1,048,576 times (1<<20) through the mixing buffer,
|
|
* using 524,288 iterations of the following mixing function. Each execution
|
|
* performs two reads and writes from the mixing buffer.
|
|
*/
|
|
|
|
_b = vld1q_u8((const uint8_t *)b);
|
|
|
|
|
|
for(i = 0; i < ITER / 2; i++)
|
|
{
|
|
pre_aes();
|
|
_c = vaeseq_u8(_c, zero);
|
|
_c = vaesmcq_u8(_c);
|
|
_c = veorq_u8(_c, _a);
|
|
post_aes();
|
|
}
|
|
|
|
/* CryptoNight Step 4: Sequentially pass through the mixing buffer and use 10 rounds
|
|
* of AES encryption to mix the random data back into the 'text' buffer. 'text'
|
|
* was originally created with the output of Keccak1600. */
|
|
|
|
memcpy(text, state.init, INIT_SIZE_BYTE);
|
|
|
|
aes_expand_key(&state.hs.b[32], expandedKey);
|
|
for(i = 0; i < MEMORY / INIT_SIZE_BYTE; i++)
|
|
{
|
|
// add the xor to the pseudo round
|
|
aes_pseudo_round_xor(text, text, expandedKey, &hp_state[i * INIT_SIZE_BYTE], INIT_SIZE_BLK);
|
|
}
|
|
|
|
/* CryptoNight Step 5: Apply Keccak to the state again, and then
|
|
* use the resulting data to select which of four finalizer
|
|
* hash functions to apply to the data (Blake, Groestl, JH, or Skein).
|
|
* Use this hash to squeeze the state array down
|
|
* to the final 256 bit hash output.
|
|
*/
|
|
|
|
memcpy(state.init, text, INIT_SIZE_BYTE);
|
|
hash_permutation(&state.hs);
|
|
extra_hashes[state.hs.b[0] & 3](&state, 200, hash);
|
|
}
|
|
#else /* aarch64 && crypto */
|
|
|
|
// ND: Some minor optimizations for ARMv7 (raspberrry pi 2), effect seems to be ~40-50% faster.
|
|
// Needs more work.
|
|
|
|
#ifdef NO_OPTIMIZED_MULTIPLY_ON_ARM
|
|
/* The asm corresponds to this C code */
|
|
#define SHORT uint32_t
|
|
#define LONG uint64_t
|
|
|
|
void mul(const uint8_t *ca, const uint8_t *cb, uint8_t *cres) {
|
|
const SHORT *aa = (SHORT *)ca;
|
|
const SHORT *bb = (SHORT *)cb;
|
|
SHORT *res = (SHORT *)cres;
|
|
union {
|
|
SHORT tmp[8];
|
|
LONG ltmp[4];
|
|
} t;
|
|
LONG A = aa[1];
|
|
LONG a = aa[0];
|
|
LONG B = bb[1];
|
|
LONG b = bb[0];
|
|
|
|
// Aa * Bb = ab + aB_ + Ab_ + AB__
|
|
t.ltmp[0] = a * b;
|
|
t.ltmp[1] = a * B;
|
|
t.ltmp[2] = A * b;
|
|
t.ltmp[3] = A * B;
|
|
|
|
res[2] = t.tmp[0];
|
|
t.ltmp[1] += t.tmp[1];
|
|
t.ltmp[1] += t.tmp[4];
|
|
t.ltmp[3] += t.tmp[3];
|
|
t.ltmp[3] += t.tmp[5];
|
|
res[3] = t.tmp[2];
|
|
res[0] = t.tmp[6];
|
|
res[1] = t.tmp[7];
|
|
}
|
|
#else // !NO_OPTIMIZED_MULTIPLY_ON_ARM
|
|
|
|
#ifdef __aarch64__ /* ARM64, no crypto */
|
|
#define mul(a, b, c) cn_mul128((const uint64_t *)a, (const uint64_t *)b, (uint64_t *)c)
|
|
STATIC void cn_mul128(const uint64_t *a, const uint64_t *b, uint64_t *r)
|
|
{
|
|
uint64_t lo, hi;
|
|
__asm__("mul %0, %1, %2\n\t" : "=r"(lo) : "r"(a[0]), "r"(b[0]) );
|
|
__asm__("umulh %0, %1, %2\n\t" : "=r"(hi) : "r"(a[0]), "r"(b[0]) );
|
|
r[0] = hi;
|
|
r[1] = lo;
|
|
}
|
|
#else /* ARM32 */
|
|
#define mul(a, b, c) cn_mul128((const uint32_t *)a, (const uint32_t *)b, (uint32_t *)c)
|
|
STATIC void cn_mul128(const uint32_t *aa, const uint32_t *bb, uint32_t *r)
|
|
{
|
|
uint32_t t0, t1, t2=0, t3=0;
|
|
__asm__ __volatile__(
|
|
"umull %[t0], %[t1], %[a], %[b]\n\t"
|
|
"str %[t0], %[ll]\n\t"
|
|
|
|
// accumulating with 0 can never overflow/carry
|
|
"eor %[t0], %[t0]\n\t"
|
|
"umlal %[t1], %[t0], %[a], %[B]\n\t"
|
|
|
|
"umlal %[t1], %[t2], %[A], %[b]\n\t"
|
|
"str %[t1], %[lh]\n\t"
|
|
|
|
"umlal %[t0], %[t3], %[A], %[B]\n\t"
|
|
|
|
// final add may have a carry
|
|
"adds %[t0], %[t0], %[t2]\n\t"
|
|
"adc %[t1], %[t3], #0\n\t"
|
|
|
|
"str %[t0], %[hl]\n\t"
|
|
"str %[t1], %[hh]\n\t"
|
|
: [t0]"=&r"(t0), [t1]"=&r"(t1), [t2]"+r"(t2), [t3]"+r"(t3), [hl]"=m"(r[0]), [hh]"=m"(r[1]), [ll]"=m"(r[2]), [lh]"=m"(r[3])
|
|
: [A]"r"(aa[1]), [a]"r"(aa[0]), [B]"r"(bb[1]), [b]"r"(bb[0])
|
|
: "cc");
|
|
}
|
|
#endif /* !aarch64 */
|
|
#endif // NO_OPTIMIZED_MULTIPLY_ON_ARM
|
|
|
|
STATIC INLINE void sum_half_blocks(uint8_t* a, const uint8_t* b)
|
|
{
|
|
uint64_t a0, a1, b0, b1;
|
|
a0 = U64(a)[0];
|
|
a1 = U64(a)[1];
|
|
b0 = U64(b)[0];
|
|
b1 = U64(b)[1];
|
|
a0 += b0;
|
|
a1 += b1;
|
|
U64(a)[0] = a0;
|
|
U64(a)[1] = a1;
|
|
}
|
|
|
|
STATIC INLINE void swap_blocks(uint8_t *a, uint8_t *b)
|
|
{
|
|
uint64_t t[2];
|
|
U64(t)[0] = U64(a)[0];
|
|
U64(t)[1] = U64(a)[1];
|
|
U64(a)[0] = U64(b)[0];
|
|
U64(a)[1] = U64(b)[1];
|
|
U64(b)[0] = U64(t)[0];
|
|
U64(b)[1] = U64(t)[1];
|
|
}
|
|
|
|
STATIC INLINE void xor_blocks(uint8_t* a, const uint8_t* b)
|
|
{
|
|
U64(a)[0] ^= U64(b)[0];
|
|
U64(a)[1] ^= U64(b)[1];
|
|
}
|
|
|
|
void cn_slow_hash(const void *data, size_t length, char *hash)
|
|
{
|
|
uint8_t text[INIT_SIZE_BYTE];
|
|
uint8_t a[AES_BLOCK_SIZE];
|
|
uint8_t b[AES_BLOCK_SIZE];
|
|
uint8_t d[AES_BLOCK_SIZE];
|
|
uint8_t aes_key[AES_KEY_SIZE];
|
|
RDATA_ALIGN16 uint8_t expandedKey[256];
|
|
|
|
union cn_slow_hash_state state;
|
|
|
|
size_t i, j;
|
|
uint8_t *p = NULL;
|
|
oaes_ctx *aes_ctx;
|
|
static void (*const extra_hashes[4])(const void *, size_t, char *) =
|
|
{
|
|
hash_extra_blake, hash_extra_groestl, hash_extra_jh, hash_extra_skein
|
|
};
|
|
|
|
#ifndef FORCE_USE_HEAP
|
|
uint8_t long_state[MEMORY];
|
|
#else
|
|
uint8_t *long_state = NULL;
|
|
long_state = (uint8_t *)malloc(MEMORY);
|
|
#endif
|
|
|
|
hash_process(&state.hs, data, length);
|
|
memcpy(text, state.init, INIT_SIZE_BYTE);
|
|
|
|
aes_ctx = (oaes_ctx *) oaes_alloc();
|
|
oaes_key_import_data(aes_ctx, state.hs.b, AES_KEY_SIZE);
|
|
|
|
// use aligned data
|
|
memcpy(expandedKey, aes_ctx->key->exp_data, aes_ctx->key->exp_data_len);
|
|
for(i = 0; i < MEMORY / INIT_SIZE_BYTE; i++)
|
|
{
|
|
for(j = 0; j < INIT_SIZE_BLK; j++)
|
|
aesb_pseudo_round(&text[AES_BLOCK_SIZE * j], &text[AES_BLOCK_SIZE * j], expandedKey);
|
|
memcpy(&long_state[i * INIT_SIZE_BYTE], text, INIT_SIZE_BYTE);
|
|
}
|
|
|
|
U64(a)[0] = U64(&state.k[0])[0] ^ U64(&state.k[32])[0];
|
|
U64(a)[1] = U64(&state.k[0])[1] ^ U64(&state.k[32])[1];
|
|
U64(b)[0] = U64(&state.k[16])[0] ^ U64(&state.k[48])[0];
|
|
U64(b)[1] = U64(&state.k[16])[1] ^ U64(&state.k[48])[1];
|
|
|
|
for(i = 0; i < ITER / 2; i++)
|
|
{
|
|
#define MASK ((uint32_t)(((MEMORY / AES_BLOCK_SIZE) - 1) << 4))
|
|
#define state_index(x) ((*(uint32_t *) x) & MASK)
|
|
|
|
// Iteration 1
|
|
p = &long_state[state_index(a)];
|
|
aesb_single_round(p, p, a);
|
|
|
|
xor_blocks(b, p);
|
|
swap_blocks(b, p);
|
|
swap_blocks(a, b);
|
|
|
|
// Iteration 2
|
|
p = &long_state[state_index(a)];
|
|
|
|
mul(a, p, d);
|
|
sum_half_blocks(b, d);
|
|
swap_blocks(b, p);
|
|
xor_blocks(b, p);
|
|
swap_blocks(a, b);
|
|
}
|
|
|
|
memcpy(text, state.init, INIT_SIZE_BYTE);
|
|
oaes_key_import_data(aes_ctx, &state.hs.b[32], AES_KEY_SIZE);
|
|
memcpy(expandedKey, aes_ctx->key->exp_data, aes_ctx->key->exp_data_len);
|
|
for(i = 0; i < MEMORY / INIT_SIZE_BYTE; i++)
|
|
{
|
|
for(j = 0; j < INIT_SIZE_BLK; j++)
|
|
{
|
|
xor_blocks(&text[j * AES_BLOCK_SIZE], &long_state[i * INIT_SIZE_BYTE + j * AES_BLOCK_SIZE]);
|
|
aesb_pseudo_round(&text[AES_BLOCK_SIZE * j], &text[AES_BLOCK_SIZE * j], expandedKey);
|
|
}
|
|
}
|
|
|
|
oaes_free((OAES_CTX **) &aes_ctx);
|
|
memcpy(state.init, text, INIT_SIZE_BYTE);
|
|
hash_permutation(&state.hs);
|
|
extra_hashes[state.hs.b[0] & 3](&state, 200, hash);
|
|
#ifdef FORCE_USE_HEAP
|
|
free(long_state);
|
|
#endif
|
|
}
|
|
#endif /* !aarch64 || !crypto */
|
|
|
|
#else
|
|
// Portable implementation as a fallback
|
|
|
|
void slow_hash_allocate_state(void)
|
|
{
|
|
// Do nothing, this is just to maintain compatibility with the upgraded slow-hash.c
|
|
return;
|
|
}
|
|
|
|
void slow_hash_free_state(void)
|
|
{
|
|
// As above
|
|
return;
|
|
}
|
|
|
|
static void (*const extra_hashes[4])(const void *, size_t, char *) = {
|
|
hash_extra_blake, hash_extra_groestl, hash_extra_jh, hash_extra_skein
|
|
};
|
|
|
|
extern int aesb_single_round(const uint8_t *in, uint8_t*out, const uint8_t *expandedKey);
|
|
extern int aesb_pseudo_round(const uint8_t *in, uint8_t *out, const uint8_t *expandedKey);
|
|
|
|
static size_t e2i(const uint8_t* a, size_t count) { return (*((uint64_t*)a) / AES_BLOCK_SIZE) & (count - 1); }
|
|
|
|
static void mul(const uint8_t* a, const uint8_t* b, uint8_t* res) {
|
|
uint64_t a0, b0;
|
|
uint64_t hi, lo;
|
|
|
|
a0 = SWAP64LE(((uint64_t*)a)[0]);
|
|
b0 = SWAP64LE(((uint64_t*)b)[0]);
|
|
lo = mul128(a0, b0, &hi);
|
|
((uint64_t*)res)[0] = SWAP64LE(hi);
|
|
((uint64_t*)res)[1] = SWAP64LE(lo);
|
|
}
|
|
|
|
static void sum_half_blocks(uint8_t* a, const uint8_t* b) {
|
|
uint64_t a0, a1, b0, b1;
|
|
|
|
a0 = SWAP64LE(((uint64_t*)a)[0]);
|
|
a1 = SWAP64LE(((uint64_t*)a)[1]);
|
|
b0 = SWAP64LE(((uint64_t*)b)[0]);
|
|
b1 = SWAP64LE(((uint64_t*)b)[1]);
|
|
a0 += b0;
|
|
a1 += b1;
|
|
((uint64_t*)a)[0] = SWAP64LE(a0);
|
|
((uint64_t*)a)[1] = SWAP64LE(a1);
|
|
}
|
|
#define U64(x) ((uint64_t *) (x))
|
|
|
|
static void copy_block(uint8_t* dst, const uint8_t* src) {
|
|
memcpy(dst, src, AES_BLOCK_SIZE);
|
|
}
|
|
|
|
static void swap_blocks(uint8_t *a, uint8_t *b){
|
|
uint64_t t[2];
|
|
U64(t)[0] = U64(a)[0];
|
|
U64(t)[1] = U64(a)[1];
|
|
U64(a)[0] = U64(b)[0];
|
|
U64(a)[1] = U64(b)[1];
|
|
U64(b)[0] = U64(t)[0];
|
|
U64(b)[1] = U64(t)[1];
|
|
}
|
|
|
|
static void xor_blocks(uint8_t* a, const uint8_t* b) {
|
|
size_t i;
|
|
for (i = 0; i < AES_BLOCK_SIZE; i++) {
|
|
a[i] ^= b[i];
|
|
}
|
|
}
|
|
|
|
#pragma pack(push, 1)
|
|
union cn_slow_hash_state {
|
|
union hash_state hs;
|
|
struct {
|
|
uint8_t k[64];
|
|
uint8_t init[INIT_SIZE_BYTE];
|
|
};
|
|
};
|
|
#pragma pack(pop)
|
|
|
|
void cn_slow_hash(const void *data, size_t length, char *hash) {
|
|
uint8_t long_state[MEMORY];
|
|
union cn_slow_hash_state state;
|
|
uint8_t text[INIT_SIZE_BYTE];
|
|
uint8_t a[AES_BLOCK_SIZE];
|
|
uint8_t b[AES_BLOCK_SIZE];
|
|
uint8_t c[AES_BLOCK_SIZE];
|
|
uint8_t d[AES_BLOCK_SIZE];
|
|
size_t i, j;
|
|
uint8_t aes_key[AES_KEY_SIZE];
|
|
oaes_ctx *aes_ctx;
|
|
|
|
hash_process(&state.hs, data, length);
|
|
memcpy(text, state.init, INIT_SIZE_BYTE);
|
|
memcpy(aes_key, state.hs.b, AES_KEY_SIZE);
|
|
aes_ctx = (oaes_ctx *) oaes_alloc();
|
|
|
|
oaes_key_import_data(aes_ctx, aes_key, AES_KEY_SIZE);
|
|
for (i = 0; i < MEMORY / INIT_SIZE_BYTE; i++) {
|
|
for (j = 0; j < INIT_SIZE_BLK; j++) {
|
|
aesb_pseudo_round(&text[AES_BLOCK_SIZE * j], &text[AES_BLOCK_SIZE * j], aes_ctx->key->exp_data);
|
|
}
|
|
memcpy(&long_state[i * INIT_SIZE_BYTE], text, INIT_SIZE_BYTE);
|
|
}
|
|
|
|
for (i = 0; i < 16; i++) {
|
|
a[i] = state.k[ i] ^ state.k[32 + i];
|
|
b[i] = state.k[16 + i] ^ state.k[48 + i];
|
|
}
|
|
|
|
for (i = 0; i < ITER / 2; i++) {
|
|
/* Dependency chain: address -> read value ------+
|
|
* written value <-+ hard function (AES or MUL) <+
|
|
* next address <-+
|
|
*/
|
|
/* Iteration 1 */
|
|
j = e2i(a, MEMORY / AES_BLOCK_SIZE);
|
|
copy_block(c, &long_state[j * AES_BLOCK_SIZE]);
|
|
aesb_single_round(c, c, a);
|
|
xor_blocks(b, c);
|
|
swap_blocks(b, c);
|
|
copy_block(&long_state[j * AES_BLOCK_SIZE], c);
|
|
assert(j == e2i(a, MEMORY / AES_BLOCK_SIZE));
|
|
swap_blocks(a, b);
|
|
/* Iteration 2 */
|
|
j = e2i(a, MEMORY / AES_BLOCK_SIZE);
|
|
copy_block(c, &long_state[j * AES_BLOCK_SIZE]);
|
|
mul(a, c, d);
|
|
sum_half_blocks(b, d);
|
|
swap_blocks(b, c);
|
|
xor_blocks(b, c);
|
|
copy_block(&long_state[j * AES_BLOCK_SIZE], c);
|
|
assert(j == e2i(a, MEMORY / AES_BLOCK_SIZE));
|
|
swap_blocks(a, b);
|
|
}
|
|
|
|
memcpy(text, state.init, INIT_SIZE_BYTE);
|
|
oaes_key_import_data(aes_ctx, &state.hs.b[32], AES_KEY_SIZE);
|
|
for (i = 0; i < MEMORY / INIT_SIZE_BYTE; i++) {
|
|
for (j = 0; j < INIT_SIZE_BLK; j++) {
|
|
xor_blocks(&text[j * AES_BLOCK_SIZE], &long_state[i * INIT_SIZE_BYTE + j * AES_BLOCK_SIZE]);
|
|
aesb_pseudo_round(&text[AES_BLOCK_SIZE * j], &text[AES_BLOCK_SIZE * j], aes_ctx->key->exp_data);
|
|
}
|
|
}
|
|
memcpy(state.init, text, INIT_SIZE_BYTE);
|
|
hash_permutation(&state.hs);
|
|
/*memcpy(hash, &state, 32);*/
|
|
extra_hashes[state.hs.b[0] & 3](&state, 200, hash);
|
|
oaes_free((OAES_CTX **) &aes_ctx);
|
|
}
|
|
|
|
#endif
|