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sha.cpp
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// sha.cpp - modified by Wei Dai from Steve Reid's public domain sha1.c
// Steve Reid implemented SHA-1. Wei Dai implemented SHA-2. Jeffrey Walton
// implemented Intel SHA extensions based on Intel articles and code by
// Sean Gulley. Jeffrey Walton implemented ARM SHA based on ARM code and
// code from Johannes Schneiders, Skip Hovsmith and Barry O'Rourke.
// All code is in the public domain.
// use "cl /EP /P /DCRYPTOPP_GENERATE_X64_MASM sha.cpp" to generate MASM code
#include "pch.h"
#include "config.h"
#if CRYPTOPP_MSC_VERSION
# pragma warning(disable: 4100 4731)
#endif
#ifndef CRYPTOPP_IMPORTS
#ifndef CRYPTOPP_GENERATE_X64_MASM
#include "secblock.h"
#include "sha.h"
#include "misc.h"
#include "cpu.h"
#if defined(CRYPTOPP_DISABLE_SHA_ASM)
# undef CRYPTOPP_X86_ASM_AVAILABLE
# undef CRYPTOPP_X32_ASM_AVAILABLE
# undef CRYPTOPP_X64_ASM_AVAILABLE
# undef CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE
#endif
NAMESPACE_BEGIN(CryptoPP)
// Function pointer for specific SHA1 or SHA256 Transform function
typedef void (*pfnSHATransform)(word32 *state, const word32 *data);
typedef void (CRYPTOPP_FASTCALL *pfnSHAHashBlocks)(word32 *state, const word32 *data, size_t length);
////////////////////////////////
// start of Steve Reid's code //
////////////////////////////////
#define blk0(i) (W[i] = data[i])
#define blk1(i) (W[i&15] = rotlFixed(W[(i+13)&15]^W[(i+8)&15]^W[(i+2)&15]^W[i&15],1))
#define f1(x,y,z) (z^(x&(y^z)))
#define f2(x,y,z) (x^y^z)
#define f3(x,y,z) ((x&y)|(z&(x|y)))
#define f4(x,y,z) (x^y^z)
/* (R0+R1), R2, R3, R4 are the different operations used in SHA1 */
#define R0(v,w,x,y,z,i) z+=f1(w,x,y)+blk0(i)+0x5A827999+rotlFixed(v,5);w=rotlFixed(w,30);
#define R1(v,w,x,y,z,i) z+=f1(w,x,y)+blk1(i)+0x5A827999+rotlFixed(v,5);w=rotlFixed(w,30);
#define R2(v,w,x,y,z,i) z+=f2(w,x,y)+blk1(i)+0x6ED9EBA1+rotlFixed(v,5);w=rotlFixed(w,30);
#define R3(v,w,x,y,z,i) z+=f3(w,x,y)+blk1(i)+0x8F1BBCDC+rotlFixed(v,5);w=rotlFixed(w,30);
#define R4(v,w,x,y,z,i) z+=f4(w,x,y)+blk1(i)+0xCA62C1D6+rotlFixed(v,5);w=rotlFixed(w,30);
static void SHA1_CXX_Transform(word32 *state, const word32 *data)
{
word32 W[16];
/* Copy context->state[] to working vars */
word32 a = state[0];
word32 b = state[1];
word32 c = state[2];
word32 d = state[3];
word32 e = state[4];
/* 4 rounds of 20 operations each. Loop unrolled. */
R0(a,b,c,d,e, 0); R0(e,a,b,c,d, 1); R0(d,e,a,b,c, 2); R0(c,d,e,a,b, 3);
R0(b,c,d,e,a, 4); R0(a,b,c,d,e, 5); R0(e,a,b,c,d, 6); R0(d,e,a,b,c, 7);
R0(c,d,e,a,b, 8); R0(b,c,d,e,a, 9); R0(a,b,c,d,e,10); R0(e,a,b,c,d,11);
R0(d,e,a,b,c,12); R0(c,d,e,a,b,13); R0(b,c,d,e,a,14); R0(a,b,c,d,e,15);
R1(e,a,b,c,d,16); R1(d,e,a,b,c,17); R1(c,d,e,a,b,18); R1(b,c,d,e,a,19);
R2(a,b,c,d,e,20); R2(e,a,b,c,d,21); R2(d,e,a,b,c,22); R2(c,d,e,a,b,23);
R2(b,c,d,e,a,24); R2(a,b,c,d,e,25); R2(e,a,b,c,d,26); R2(d,e,a,b,c,27);
R2(c,d,e,a,b,28); R2(b,c,d,e,a,29); R2(a,b,c,d,e,30); R2(e,a,b,c,d,31);
R2(d,e,a,b,c,32); R2(c,d,e,a,b,33); R2(b,c,d,e,a,34); R2(a,b,c,d,e,35);
R2(e,a,b,c,d,36); R2(d,e,a,b,c,37); R2(c,d,e,a,b,38); R2(b,c,d,e,a,39);
R3(a,b,c,d,e,40); R3(e,a,b,c,d,41); R3(d,e,a,b,c,42); R3(c,d,e,a,b,43);
R3(b,c,d,e,a,44); R3(a,b,c,d,e,45); R3(e,a,b,c,d,46); R3(d,e,a,b,c,47);
R3(c,d,e,a,b,48); R3(b,c,d,e,a,49); R3(a,b,c,d,e,50); R3(e,a,b,c,d,51);
R3(d,e,a,b,c,52); R3(c,d,e,a,b,53); R3(b,c,d,e,a,54); R3(a,b,c,d,e,55);
R3(e,a,b,c,d,56); R3(d,e,a,b,c,57); R3(c,d,e,a,b,58); R3(b,c,d,e,a,59);
R4(a,b,c,d,e,60); R4(e,a,b,c,d,61); R4(d,e,a,b,c,62); R4(c,d,e,a,b,63);
R4(b,c,d,e,a,64); R4(a,b,c,d,e,65); R4(e,a,b,c,d,66); R4(d,e,a,b,c,67);
R4(c,d,e,a,b,68); R4(b,c,d,e,a,69); R4(a,b,c,d,e,70); R4(e,a,b,c,d,71);
R4(d,e,a,b,c,72); R4(c,d,e,a,b,73); R4(b,c,d,e,a,74); R4(a,b,c,d,e,75);
R4(e,a,b,c,d,76); R4(d,e,a,b,c,77); R4(c,d,e,a,b,78); R4(b,c,d,e,a,79);
/* Add the working vars back into context.state[] */
state[0] += a;
state[1] += b;
state[2] += c;
state[3] += d;
state[4] += e;
}
//////////////////////////////
// end of Steve Reid's code //
//////////////////////////////
///////////////////////////////////
// start of Walton/Gulley's code //
///////////////////////////////////
#if CRYPTOPP_BOOL_SSE_SHA_INTRINSICS_AVAILABLE
// Based on http://software.intel.com/en-us/articles/intel-sha-extensions and code by Sean Gulley.
static void SHA1_SSE_SHA_Transform(word32 *state, const word32 *data)
{
__m128i ABCD, ABCD_SAVE, E0, E0_SAVE, E1;
__m128i MASK, MSG0, MSG1, MSG2, MSG3;
// Load initial values
ABCD = _mm_loadu_si128((__m128i*) state);
E0 = _mm_set_epi32(state[4], 0, 0, 0);
ABCD = _mm_shuffle_epi32(ABCD, 0x1B);
MASK = _mm_set_epi8(3,2,1,0, 7,6,5,4, 11,10,9,8, 15,14,13,12);
// Save current hash
ABCD_SAVE = ABCD;
E0_SAVE = E0;
// Rounds 0-3
MSG0 = _mm_loadu_si128((__m128i*) data+0);
MSG0 = _mm_shuffle_epi8(MSG0, MASK);
E0 = _mm_add_epi32(E0, MSG0);
E1 = ABCD;
ABCD = _mm_sha1rnds4_epu32(ABCD, E0, 0);
// Rounds 4-7
MSG1 = _mm_loadu_si128((__m128i*) (data+4));
MSG1 = _mm_shuffle_epi8(MSG1, MASK);
E1 = _mm_sha1nexte_epu32(E1, MSG1);
E0 = ABCD;
ABCD = _mm_sha1rnds4_epu32(ABCD, E1, 0);
MSG0 = _mm_sha1msg1_epu32(MSG0, MSG1);
// Rounds 8-11
MSG2 = _mm_loadu_si128((__m128i*) (data+8));
MSG2 = _mm_shuffle_epi8(MSG2, MASK);
E0 = _mm_sha1nexte_epu32(E0, MSG2);
E1 = ABCD;
ABCD = _mm_sha1rnds4_epu32(ABCD, E0, 0);
MSG1 = _mm_sha1msg1_epu32(MSG1, MSG2);
MSG0 = _mm_xor_si128(MSG0, MSG2);
// Rounds 12-15
MSG3 = _mm_loadu_si128((__m128i*) (data+12));
MSG3 = _mm_shuffle_epi8(MSG3, MASK);
E1 = _mm_sha1nexte_epu32(E1, MSG3);
E0 = ABCD;
MSG0 = _mm_sha1msg2_epu32(MSG0, MSG3);
ABCD = _mm_sha1rnds4_epu32(ABCD, E1, 0);
MSG2 = _mm_sha1msg1_epu32(MSG2, MSG3);
MSG1 = _mm_xor_si128(MSG1, MSG3);
// Rounds 16-19
E0 = _mm_sha1nexte_epu32(E0, MSG0);
E1 = ABCD;
MSG1 = _mm_sha1msg2_epu32(MSG1, MSG0);
ABCD = _mm_sha1rnds4_epu32(ABCD, E0, 0);
MSG3 = _mm_sha1msg1_epu32(MSG3, MSG0);
MSG2 = _mm_xor_si128(MSG2, MSG0);
// Rounds 20-23
E1 = _mm_sha1nexte_epu32(E1, MSG1);
E0 = ABCD;
MSG2 = _mm_sha1msg2_epu32(MSG2, MSG1);
ABCD = _mm_sha1rnds4_epu32(ABCD, E1, 1);
MSG0 = _mm_sha1msg1_epu32(MSG0, MSG1);
MSG3 = _mm_xor_si128(MSG3, MSG1);
// Rounds 24-27
E0 = _mm_sha1nexte_epu32(E0, MSG2);
E1 = ABCD;
MSG3 = _mm_sha1msg2_epu32(MSG3, MSG2);
ABCD = _mm_sha1rnds4_epu32(ABCD, E0, 1);
MSG1 = _mm_sha1msg1_epu32(MSG1, MSG2);
MSG0 = _mm_xor_si128(MSG0, MSG2);
// Rounds 28-31
E1 = _mm_sha1nexte_epu32(E1, MSG3);
E0 = ABCD;
MSG0 = _mm_sha1msg2_epu32(MSG0, MSG3);
ABCD = _mm_sha1rnds4_epu32(ABCD, E1, 1);
MSG2 = _mm_sha1msg1_epu32(MSG2, MSG3);
MSG1 = _mm_xor_si128(MSG1, MSG3);
// Rounds 32-35
E0 = _mm_sha1nexte_epu32(E0, MSG0);
E1 = ABCD;
MSG1 = _mm_sha1msg2_epu32(MSG1, MSG0);
ABCD = _mm_sha1rnds4_epu32(ABCD, E0, 1);
MSG3 = _mm_sha1msg1_epu32(MSG3, MSG0);
MSG2 = _mm_xor_si128(MSG2, MSG0);
// Rounds 36-39
E1 = _mm_sha1nexte_epu32(E1, MSG1);
E0 = ABCD;
MSG2 = _mm_sha1msg2_epu32(MSG2, MSG1);
ABCD = _mm_sha1rnds4_epu32(ABCD, E1, 1);
MSG0 = _mm_sha1msg1_epu32(MSG0, MSG1);
MSG3 = _mm_xor_si128(MSG3, MSG1);
// Rounds 40-43
E0 = _mm_sha1nexte_epu32(E0, MSG2);
E1 = ABCD;
MSG3 = _mm_sha1msg2_epu32(MSG3, MSG2);
ABCD = _mm_sha1rnds4_epu32(ABCD, E0, 2);
MSG1 = _mm_sha1msg1_epu32(MSG1, MSG2);
MSG0 = _mm_xor_si128(MSG0, MSG2);
// Rounds 44-47
E1 = _mm_sha1nexte_epu32(E1, MSG3);
E0 = ABCD;
MSG0 = _mm_sha1msg2_epu32(MSG0, MSG3);
ABCD = _mm_sha1rnds4_epu32(ABCD, E1, 2);
MSG2 = _mm_sha1msg1_epu32(MSG2, MSG3);
MSG1 = _mm_xor_si128(MSG1, MSG3);
// Rounds 48-51
E0 = _mm_sha1nexte_epu32(E0, MSG0);
E1 = ABCD;
MSG1 = _mm_sha1msg2_epu32(MSG1, MSG0);
ABCD = _mm_sha1rnds4_epu32(ABCD, E0, 2);
MSG3 = _mm_sha1msg1_epu32(MSG3, MSG0);
MSG2 = _mm_xor_si128(MSG2, MSG0);
// Rounds 52-55
E1 = _mm_sha1nexte_epu32(E1, MSG1);
E0 = ABCD;
MSG2 = _mm_sha1msg2_epu32(MSG2, MSG1);
ABCD = _mm_sha1rnds4_epu32(ABCD, E1, 2);
MSG0 = _mm_sha1msg1_epu32(MSG0, MSG1);
MSG3 = _mm_xor_si128(MSG3, MSG1);
// Rounds 56-59
E0 = _mm_sha1nexte_epu32(E0, MSG2);
E1 = ABCD;
MSG3 = _mm_sha1msg2_epu32(MSG3, MSG2);
ABCD = _mm_sha1rnds4_epu32(ABCD, E0, 2);
MSG1 = _mm_sha1msg1_epu32(MSG1, MSG2);
MSG0 = _mm_xor_si128(MSG0, MSG2);
// Rounds 60-63
E1 = _mm_sha1nexte_epu32(E1, MSG3);
E0 = ABCD;
MSG0 = _mm_sha1msg2_epu32(MSG0, MSG3);
ABCD = _mm_sha1rnds4_epu32(ABCD, E1, 3);
MSG2 = _mm_sha1msg1_epu32(MSG2, MSG3);
MSG1 = _mm_xor_si128(MSG1, MSG3);
// Rounds 64-67
E0 = _mm_sha1nexte_epu32(E0, MSG0);
E1 = ABCD;
MSG1 = _mm_sha1msg2_epu32(MSG1, MSG0);
ABCD = _mm_sha1rnds4_epu32(ABCD, E0, 3);
MSG3 = _mm_sha1msg1_epu32(MSG3, MSG0);
MSG2 = _mm_xor_si128(MSG2, MSG0);
// Rounds 68-71
E1 = _mm_sha1nexte_epu32(E1, MSG1);
E0 = ABCD;
MSG2 = _mm_sha1msg2_epu32(MSG2, MSG1);
ABCD = _mm_sha1rnds4_epu32(ABCD, E1, 3);
MSG3 = _mm_xor_si128(MSG3, MSG1);
// Rounds 72-75
E0 = _mm_sha1nexte_epu32(E0, MSG2);
E1 = ABCD;
MSG3 = _mm_sha1msg2_epu32(MSG3, MSG2);
ABCD = _mm_sha1rnds4_epu32(ABCD, E0, 3);
// Rounds 76-79
E1 = _mm_sha1nexte_epu32(E1, MSG3);
E0 = ABCD;
ABCD = _mm_sha1rnds4_epu32(ABCD, E1, 3);
// Add values back to state
E0 = _mm_sha1nexte_epu32(E0, E0_SAVE);
ABCD = _mm_add_epi32(ABCD, ABCD_SAVE);
// Save state
ABCD = _mm_shuffle_epi32(ABCD, 0x1B);
_mm_storeu_si128((__m128i*) state, ABCD);
state[4] = _mm_extract_epi32(E0, 3);
}
#endif
/////////////////////////////////
// end of Walton/Gulley's code //
/////////////////////////////////
//////////////////////////////////////////////////////////////
// start of Walton/Schneiders/O'Rourke/Skip Hovsmith's code //
//////////////////////////////////////////////////////////////
#if CRYPTOPP_BOOL_ARM_CRYPTO_INTRINSICS_AVAILABLE
static void SHA1_ARM_SHA_Transform(word32 *state, const word32 *data)
{
uint32x4_t C0, C1, C2, C3;
uint32x4_t ABCD, ABCD_SAVED;
uint32x4_t MSG0, MSG1, MSG2, MSG3;
uint32x4_t TMP0, TMP1;
uint32_t E0, E0_SAVED, E1;
// Load initial values
C0 = vdupq_n_u32(0x5A827999);
C1 = vdupq_n_u32(0x6ED9EBA1);
C2 = vdupq_n_u32(0x8F1BBCDC);
C3 = vdupq_n_u32(0xCA62C1D6);
ABCD = vld1q_u32(&state[0]);
E0 = state[4];
// Save current hash
ABCD_SAVED = ABCD;
E0_SAVED = E0;
MSG0 = vld1q_u32(data + 0);
MSG1 = vld1q_u32(data + 4);
MSG2 = vld1q_u32(data + 8);
MSG3 = vld1q_u32(data + 12);
TMP0 = vaddq_u32(MSG0, C0);
TMP1 = vaddq_u32(MSG1, C0);
// Rounds 0-3
E1 = vsha1h_u32(vgetq_lane_u32(ABCD, 0));
ABCD = vsha1cq_u32(ABCD, E0, TMP0);
TMP0 = vaddq_u32(MSG2, C0);
MSG0 = vsha1su0q_u32(MSG0, MSG1, MSG2);
// Rounds 4-7
E0 = vsha1h_u32(vgetq_lane_u32(ABCD, 0));
ABCD = vsha1cq_u32(ABCD, E1, TMP1);
TMP1 = vaddq_u32(MSG3, C0);
MSG0 = vsha1su1q_u32(MSG0, MSG3);
MSG1 = vsha1su0q_u32(MSG1, MSG2, MSG3);
// Rounds 8-11
E1 = vsha1h_u32(vgetq_lane_u32(ABCD, 0));
ABCD = vsha1cq_u32(ABCD, E0, TMP0);
TMP0 = vaddq_u32(MSG0, C0);
MSG1 = vsha1su1q_u32(MSG1, MSG0);
MSG2 = vsha1su0q_u32(MSG2, MSG3, MSG0);
// Rounds 12-15
E0 = vsha1h_u32(vgetq_lane_u32(ABCD, 0));
ABCD = vsha1cq_u32(ABCD, E1, TMP1);
TMP1 = vaddq_u32(MSG1, C1);
MSG2 = vsha1su1q_u32(MSG2, MSG1);
MSG3 = vsha1su0q_u32(MSG3, MSG0, MSG1);
// Rounds 16-19
E1 = vsha1h_u32(vgetq_lane_u32(ABCD, 0));
ABCD = vsha1cq_u32(ABCD, E0, TMP0);
TMP0 = vaddq_u32(MSG2, C1);
MSG3 = vsha1su1q_u32(MSG3, MSG2);
MSG0 = vsha1su0q_u32(MSG0, MSG1, MSG2);
// Rounds 20-23
E0 = vsha1h_u32(vgetq_lane_u32(ABCD, 0));
ABCD = vsha1pq_u32(ABCD, E1, TMP1);
TMP1 = vaddq_u32(MSG3, C1);
MSG0 = vsha1su1q_u32(MSG0, MSG3);
MSG1 = vsha1su0q_u32(MSG1, MSG2, MSG3);
// Rounds 24-27
E1 = vsha1h_u32(vgetq_lane_u32(ABCD, 0));
ABCD = vsha1pq_u32(ABCD, E0, TMP0);
TMP0 = vaddq_u32(MSG0, C1);
MSG1 = vsha1su1q_u32(MSG1, MSG0);
MSG2 = vsha1su0q_u32(MSG2, MSG3, MSG0);
// Rounds 28-31
E0 = vsha1h_u32(vgetq_lane_u32(ABCD, 0));
ABCD = vsha1pq_u32(ABCD, E1, TMP1);
TMP1 = vaddq_u32(MSG1, C1);
MSG2 = vsha1su1q_u32(MSG2, MSG1);
MSG3 = vsha1su0q_u32(MSG3, MSG0, MSG1);
// Rounds 32-35
E1 = vsha1h_u32(vgetq_lane_u32(ABCD, 0));
ABCD = vsha1pq_u32(ABCD, E0, TMP0);
TMP0 = vaddq_u32(MSG2, C2);
MSG3 = vsha1su1q_u32(MSG3, MSG2);
MSG0 = vsha1su0q_u32(MSG0, MSG1, MSG2);
// Rounds 36-39
E0 = vsha1h_u32(vgetq_lane_u32(ABCD, 0));
ABCD = vsha1pq_u32(ABCD, E1, TMP1);
TMP1 = vaddq_u32(MSG3, C2);
MSG0 = vsha1su1q_u32(MSG0, MSG3);
MSG1 = vsha1su0q_u32(MSG1, MSG2, MSG3);
// Rounds 40-43
E1 = vsha1h_u32(vgetq_lane_u32(ABCD, 0));
ABCD = vsha1mq_u32(ABCD, E0, TMP0);
TMP0 = vaddq_u32(MSG0, C2);
MSG1 = vsha1su1q_u32(MSG1, MSG0);
MSG2 = vsha1su0q_u32(MSG2, MSG3, MSG0);
// Rounds 44-47
E0 = vsha1h_u32(vgetq_lane_u32(ABCD, 0));
ABCD = vsha1mq_u32(ABCD, E1, TMP1);
TMP1 = vaddq_u32(MSG1, C2);
MSG2 = vsha1su1q_u32(MSG2, MSG1);
MSG3 = vsha1su0q_u32(MSG3, MSG0, MSG1);
// Rounds 48-51
E1 = vsha1h_u32(vgetq_lane_u32(ABCD, 0));
ABCD = vsha1mq_u32(ABCD, E0, TMP0);
TMP0 = vaddq_u32(MSG2, C2);
MSG3 = vsha1su1q_u32(MSG3, MSG2);
MSG0 = vsha1su0q_u32(MSG0, MSG1, MSG2);
// Rounds 52-55
E0 = vsha1h_u32(vgetq_lane_u32(ABCD, 0));
ABCD = vsha1mq_u32(ABCD, E1, TMP1);
TMP1 = vaddq_u32(MSG3, C3);
MSG0 = vsha1su1q_u32(MSG0, MSG3);
MSG1 = vsha1su0q_u32(MSG1, MSG2, MSG3);
// Rounds 56-59
E1 = vsha1h_u32(vgetq_lane_u32(ABCD, 0));
ABCD = vsha1mq_u32(ABCD, E0, TMP0);
TMP0 = vaddq_u32(MSG0, C3);
MSG1 = vsha1su1q_u32(MSG1, MSG0);
MSG2 = vsha1su0q_u32(MSG2, MSG3, MSG0);
// Rounds 60-63
E0 = vsha1h_u32(vgetq_lane_u32(ABCD, 0));
ABCD = vsha1pq_u32(ABCD, E1, TMP1);
TMP1 = vaddq_u32(MSG1, C3);
MSG2 = vsha1su1q_u32(MSG2, MSG1);
MSG3 = vsha1su0q_u32(MSG3, MSG0, MSG1);
// Rounds 64-67
E1 = vsha1h_u32(vgetq_lane_u32(ABCD, 0));
ABCD = vsha1pq_u32(ABCD, E0, TMP0);
TMP0 = vaddq_u32(MSG2, C3);
MSG3 = vsha1su1q_u32(MSG3, MSG2);
MSG0 = vsha1su0q_u32(MSG0, MSG1, MSG2);
// Rounds 68-71
E0 = vsha1h_u32(vgetq_lane_u32(ABCD, 0));
ABCD = vsha1pq_u32(ABCD, E1, TMP1);
TMP1 = vaddq_u32(MSG3, C3);
MSG0 = vsha1su1q_u32(MSG0, MSG3);
// Rounds 72-75
E1 = vsha1h_u32(vgetq_lane_u32(ABCD, 0));
ABCD = vsha1pq_u32(ABCD, E0, TMP0);
// Rounds 76-79
E0 = vsha1h_u32(vgetq_lane_u32(ABCD, 0));
ABCD = vsha1pq_u32(ABCD, E1, TMP1);
E0 += E0_SAVED;
ABCD = vaddq_u32(ABCD_SAVED, ABCD);
// Save state
vst1q_u32(&state[0], ABCD);
state[4] = E0;
}
#endif // CRYPTOPP_BOOL_ARM_CRYPTO_INTRINSICS_AVAILABLE
///////////////////////////////////////////////////////
// end of Walton/Schneiders/O'Rourke/Hovsmith's code //
///////////////////////////////////////////////////////
pfnSHATransform InitializeSHA1Transform()
{
#if CRYPTOPP_BOOL_SSE_SHA_INTRINSICS_AVAILABLE
if (HasSHA())
return &SHA1_SSE_SHA_Transform;
else
#endif
#if CRYPTOPP_BOOL_ARM_CRYPTO_INTRINSICS_AVAILABLE
if (HasSHA1())
return &SHA1_ARM_SHA_Transform;
else
#endif
return &SHA1_CXX_Transform;
}
void SHA1::InitState(HashWordType *state)
{
state[0] = 0x67452301L;
state[1] = 0xEFCDAB89L;
state[2] = 0x98BADCFEL;
state[3] = 0x10325476L;
state[4] = 0xC3D2E1F0L;
}
void SHA1::Transform(word32 *state, const word32 *data)
{
static const pfnSHATransform s_pfn = InitializeSHA1Transform();
s_pfn(state, data);
}
// *************************************************************
void SHA224::InitState(HashWordType *state)
{
static const word32 s[8] = {0xc1059ed8, 0x367cd507, 0x3070dd17, 0xf70e5939, 0xffc00b31, 0x68581511, 0x64f98fa7, 0xbefa4fa4};
memcpy(state, s, sizeof(s));
}
void SHA256::InitState(HashWordType *state)
{
static const word32 s[8] = {0x6a09e667, 0xbb67ae85, 0x3c6ef372, 0xa54ff53a, 0x510e527f, 0x9b05688c, 0x1f83d9ab, 0x5be0cd19};
memcpy(state, s, sizeof(s));
}
#if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE || CRYPTOPP_BOOL_ARM_CRYPTO_INTRINSICS_AVAILABLE
CRYPTOPP_ALIGN_DATA(16) extern const word32 SHA256_K[64] CRYPTOPP_SECTION_ALIGN16 = {
#else
extern const word32 SHA256_K[64] = {
#endif
0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5,
0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3,
0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc,
0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7,
0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13,
0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3,
0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5,
0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208,
0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
};
#endif // #ifndef CRYPTOPP_GENERATE_X64_MASM
#if (defined(CRYPTOPP_X86_ASM_AVAILABLE) || defined(CRYPTOPP_X32_ASM_AVAILABLE) || defined(CRYPTOPP_GENERATE_X64_MASM))
static void CRYPTOPP_FASTCALL X86_SHA256_HashBlocks(word32 *state, const word32 *data, size_t len)
{
#define LOCALS_SIZE 8*4 + 16*4 + 4*WORD_SZ
#define H(i) [BASE+ASM_MOD(1024+7-(i),8)*4]
#define G(i) H(i+1)
#define F(i) H(i+2)
#define E(i) H(i+3)
#define D(i) H(i+4)
#define C(i) H(i+5)
#define B(i) H(i+6)
#define A(i) H(i+7)
#define Wt(i) BASE+8*4+ASM_MOD(1024+15-(i),16)*4
#define Wt_2(i) Wt((i)-2)
#define Wt_15(i) Wt((i)-15)
#define Wt_7(i) Wt((i)-7)
#define K_END [BASE+8*4+16*4+0*WORD_SZ]
#define STATE_SAVE [BASE+8*4+16*4+1*WORD_SZ]
#define DATA_SAVE [BASE+8*4+16*4+2*WORD_SZ]
#define DATA_END [BASE+8*4+16*4+3*WORD_SZ]
#define Kt(i) WORD_REG(si)+(i)*4
#if CRYPTOPP_BOOL_X32
#define BASE esp+8
#elif CRYPTOPP_BOOL_X86
#define BASE esp+4
#elif defined(__GNUC__)
#define BASE r8
#else
#define BASE rsp
#endif
#define RA0(i, edx, edi) \
AS2( add edx, [Kt(i)] )\
AS2( add edx, [Wt(i)] )\
AS2( add edx, H(i) )\
#define RA1(i, edx, edi)
#define RB0(i, edx, edi)
#define RB1(i, edx, edi) \
AS2( mov AS_REG_7d, [Wt_2(i)] )\
AS2( mov edi, [Wt_15(i)])\
AS2( mov ebx, AS_REG_7d )\
AS2( shr AS_REG_7d, 10 )\
AS2( ror ebx, 17 )\
AS2( xor AS_REG_7d, ebx )\
AS2( ror ebx, 2 )\
AS2( xor ebx, AS_REG_7d )/* s1(W_t-2) */\
AS2( add ebx, [Wt_7(i)])\
AS2( mov AS_REG_7d, edi )\
AS2( shr AS_REG_7d, 3 )\
AS2( ror edi, 7 )\
AS2( add ebx, [Wt(i)])/* s1(W_t-2) + W_t-7 + W_t-16 */\
AS2( xor AS_REG_7d, edi )\
AS2( add edx, [Kt(i)])\
AS2( ror edi, 11 )\
AS2( add edx, H(i) )\
AS2( xor AS_REG_7d, edi )/* s0(W_t-15) */\
AS2( add AS_REG_7d, ebx )/* W_t = s1(W_t-2) + W_t-7 + s0(W_t-15) W_t-16*/\
AS2( mov [Wt(i)], AS_REG_7d)\
AS2( add edx, AS_REG_7d )\
#define ROUND(i, r, eax, ecx, edi, edx)\
/* in: edi = E */\
/* unused: eax, ecx, temp: ebx, AS_REG_7d, out: edx = T1 */\
AS2( mov edx, F(i) )\
AS2( xor edx, G(i) )\
AS2( and edx, edi )\
AS2( xor edx, G(i) )/* Ch(E,F,G) = (G^(E&(F^G))) */\
AS2( mov AS_REG_7d, edi )\
AS2( ror edi, 6 )\
AS2( ror AS_REG_7d, 25 )\
RA##r(i, edx, edi )/* H + Wt + Kt + Ch(E,F,G) */\
AS2( xor AS_REG_7d, edi )\
AS2( ror edi, 5 )\
AS2( xor AS_REG_7d, edi )/* S1(E) */\
AS2( add edx, AS_REG_7d )/* T1 = S1(E) + Ch(E,F,G) + H + Wt + Kt */\
RB##r(i, edx, edi )/* H + Wt + Kt + Ch(E,F,G) */\
/* in: ecx = A, eax = B^C, edx = T1 */\
/* unused: edx, temp: ebx, AS_REG_7d, out: eax = A, ecx = B^C, edx = E */\
AS2( mov ebx, ecx )\
AS2( xor ecx, B(i) )/* A^B */\
AS2( and eax, ecx )\
AS2( xor eax, B(i) )/* Maj(A,B,C) = B^((A^B)&(B^C) */\
AS2( mov AS_REG_7d, ebx )\
AS2( ror ebx, 2 )\
AS2( add eax, edx )/* T1 + Maj(A,B,C) */\
AS2( add edx, D(i) )\
AS2( mov D(i), edx )\
AS2( ror AS_REG_7d, 22 )\
AS2( xor AS_REG_7d, ebx )\
AS2( ror ebx, 11 )\
AS2( xor AS_REG_7d, ebx )\
AS2( add eax, AS_REG_7d )/* T1 + S0(A) + Maj(A,B,C) */\
AS2( mov H(i), eax )\
// Unroll the use of CRYPTOPP_BOOL_X64 in assembler math. The GAS assembler on X32 (version 2.25)
// complains "Error: invalid operands (*ABS* and *UND* sections) for `*` and `-`"
#if CRYPTOPP_BOOL_X64
#define SWAP_COPY(i) \
AS2( mov WORD_REG(bx), [WORD_REG(dx)+i*WORD_SZ])\
AS1( bswap WORD_REG(bx))\
AS2( mov [Wt(i*2+1)], WORD_REG(bx))
#else // X86 and X32
#define SWAP_COPY(i) \
AS2( mov WORD_REG(bx), [WORD_REG(dx)+i*WORD_SZ])\
AS1( bswap WORD_REG(bx))\
AS2( mov [Wt(i)], WORD_REG(bx))
#endif
#if defined(__GNUC__)
#if CRYPTOPP_BOOL_X64
FixedSizeAlignedSecBlock<byte, LOCALS_SIZE> workspace;
#endif
__asm__ __volatile__
(
#if CRYPTOPP_BOOL_X64
"lea %4, %%r8;"
#endif
INTEL_NOPREFIX
#elif defined(CRYPTOPP_GENERATE_X64_MASM)
ALIGN 8
X86_SHA256_HashBlocks PROC FRAME
rex_push_reg rsi
push_reg rdi
push_reg rbx
push_reg rbp
alloc_stack(LOCALS_SIZE+8)
.endprolog
mov rdi, r8
lea rsi, [?SHA256_K@CryptoPP@@3QBIB + 48*4]
#endif
#if CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X32
#ifndef __GNUC__
AS2( mov edi, [len])
AS2( lea WORD_REG(si), [SHA256_K+48*4])
#endif
#if !defined(_MSC_VER) || (_MSC_VER < 1400)
AS_PUSH_IF86(bx)
#endif
AS_PUSH_IF86(bp)
AS2( mov ebx, esp)
AS2( and esp, -16)
AS2( sub WORD_REG(sp), LOCALS_SIZE)
AS_PUSH_IF86(bx)
#endif
AS2( mov STATE_SAVE, WORD_REG(cx))
AS2( mov DATA_SAVE, WORD_REG(dx))
AS2( lea WORD_REG(ax), [WORD_REG(di) + WORD_REG(dx)])
AS2( mov DATA_END, WORD_REG(ax))
AS2( mov K_END, WORD_REG(si))
#if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE
#if CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X32
AS2( test edi, 1)
ASJ( jnz, 2, f)
AS1( dec DWORD PTR K_END)
#endif
AS2( movdqa xmm0, XMMWORD_PTR [WORD_REG(cx)+0*16])
AS2( movdqa xmm1, XMMWORD_PTR [WORD_REG(cx)+1*16])
#endif
#if CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X32
#if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE
ASJ( jmp, 0, f)
#endif
ASL(2) // non-SSE2
AS2( mov esi, ecx)
AS2( lea edi, A(0))
AS2( mov ecx, 8)
ATT_NOPREFIX
AS1( rep movsd)
INTEL_NOPREFIX
AS2( mov esi, K_END)
ASJ( jmp, 3, f)
#endif
#if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE
ASL(0)
AS2( movdqa E(0), xmm1)
AS2( movdqa A(0), xmm0)
#endif
#if CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X32
ASL(3)
#endif
AS2( sub WORD_REG(si), 48*4)
SWAP_COPY(0) SWAP_COPY(1) SWAP_COPY(2) SWAP_COPY(3)
SWAP_COPY(4) SWAP_COPY(5) SWAP_COPY(6) SWAP_COPY(7)
#if CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X32
SWAP_COPY(8) SWAP_COPY(9) SWAP_COPY(10) SWAP_COPY(11)
SWAP_COPY(12) SWAP_COPY(13) SWAP_COPY(14) SWAP_COPY(15)
#endif
AS2( mov edi, E(0)) // E
AS2( mov eax, B(0)) // B
AS2( xor eax, C(0)) // B^C
AS2( mov ecx, A(0)) // A
ROUND(0, 0, eax, ecx, edi, edx)
ROUND(1, 0, ecx, eax, edx, edi)
ROUND(2, 0, eax, ecx, edi, edx)
ROUND(3, 0, ecx, eax, edx, edi)
ROUND(4, 0, eax, ecx, edi, edx)
ROUND(5, 0, ecx, eax, edx, edi)
ROUND(6, 0, eax, ecx, edi, edx)
ROUND(7, 0, ecx, eax, edx, edi)
ROUND(8, 0, eax, ecx, edi, edx)
ROUND(9, 0, ecx, eax, edx, edi)
ROUND(10, 0, eax, ecx, edi, edx)
ROUND(11, 0, ecx, eax, edx, edi)
ROUND(12, 0, eax, ecx, edi, edx)
ROUND(13, 0, ecx, eax, edx, edi)
ROUND(14, 0, eax, ecx, edi, edx)
ROUND(15, 0, ecx, eax, edx, edi)
ASL(1)
AS2(add WORD_REG(si), 4*16)
ROUND(0, 1, eax, ecx, edi, edx)
ROUND(1, 1, ecx, eax, edx, edi)
ROUND(2, 1, eax, ecx, edi, edx)
ROUND(3, 1, ecx, eax, edx, edi)
ROUND(4, 1, eax, ecx, edi, edx)
ROUND(5, 1, ecx, eax, edx, edi)
ROUND(6, 1, eax, ecx, edi, edx)
ROUND(7, 1, ecx, eax, edx, edi)
ROUND(8, 1, eax, ecx, edi, edx)
ROUND(9, 1, ecx, eax, edx, edi)
ROUND(10, 1, eax, ecx, edi, edx)
ROUND(11, 1, ecx, eax, edx, edi)
ROUND(12, 1, eax, ecx, edi, edx)
ROUND(13, 1, ecx, eax, edx, edi)
ROUND(14, 1, eax, ecx, edi, edx)
ROUND(15, 1, ecx, eax, edx, edi)
AS2( cmp WORD_REG(si), K_END)
ATT_NOPREFIX
ASJ( jb, 1, b)
INTEL_NOPREFIX
AS2( mov WORD_REG(dx), DATA_SAVE)
AS2( add WORD_REG(dx), 64)
AS2( mov AS_REG_7, STATE_SAVE)
AS2( mov DATA_SAVE, WORD_REG(dx))
#if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE
#if CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X32
AS2( test DWORD PTR K_END, 1)
ASJ( jz, 4, f)
#endif
AS2( movdqa xmm1, XMMWORD_PTR [AS_REG_7+1*16])
AS2( movdqa xmm0, XMMWORD_PTR [AS_REG_7+0*16])
AS2( paddd xmm1, E(0))
AS2( paddd xmm0, A(0))
AS2( movdqa [AS_REG_7+1*16], xmm1)
AS2( movdqa [AS_REG_7+0*16], xmm0)
AS2( cmp WORD_REG(dx), DATA_END)
ATT_NOPREFIX
ASJ( jb, 0, b)
INTEL_NOPREFIX
#endif
#if CRYPTOPP_BOOL_X86 || CRYPTOPP_BOOL_X32
#if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE
ASJ( jmp, 5, f)
ASL(4) // non-SSE2
#endif
AS2( add [AS_REG_7+0*4], ecx) // A
AS2( add [AS_REG_7+4*4], edi) // E
AS2( mov eax, B(0))
AS2( mov ebx, C(0))
AS2( mov ecx, D(0))
AS2( add [AS_REG_7+1*4], eax)
AS2( add [AS_REG_7+2*4], ebx)
AS2( add [AS_REG_7+3*4], ecx)
AS2( mov eax, F(0))
AS2( mov ebx, G(0))
AS2( mov ecx, H(0))
AS2( add [AS_REG_7+5*4], eax)
AS2( add [AS_REG_7+6*4], ebx)
AS2( add [AS_REG_7+7*4], ecx)
AS2( mov ecx, AS_REG_7d)
AS2( cmp WORD_REG(dx), DATA_END)
ASJ( jb, 2, b)
#if CRYPTOPP_BOOL_SSE2_ASM_AVAILABLE
ASL(5)
#endif
#endif
AS_POP_IF86(sp)
AS_POP_IF86(bp)
#if !defined(_MSC_VER) || (_MSC_VER < 1400)
AS_POP_IF86(bx)
#endif
#ifdef CRYPTOPP_GENERATE_X64_MASM
add rsp, LOCALS_SIZE+8
pop rbp
pop rbx
pop rdi
pop rsi
ret
X86_SHA256_HashBlocks ENDP
#endif
#ifdef __GNUC__
ATT_PREFIX
:
: "c" (state), "d" (data), "S" (SHA256_K+48), "D" (len)
#if CRYPTOPP_BOOL_X64
, "m" (workspace[0])
#endif
: "memory", "cc", "%eax"
#if CRYPTOPP_BOOL_X64
, "%rbx", "%r8", "%r10"
#endif
);
#endif
}
#endif // (defined(CRYPTOPP_X86_ASM_AVAILABLE) || defined(CRYPTOPP_GENERATE_X64_MASM))
#ifndef CRYPTOPP_GENERATE_X64_MASM
#ifdef CRYPTOPP_X64_MASM_AVAILABLE
extern "C" {
void CRYPTOPP_FASTCALL X86_SHA256_HashBlocks(word32 *state, const word32 *data, size_t len);
}
#endif
#if CRYPTOPP_BOOL_SSE_SHA_INTRINSICS_AVAILABLE
static void CRYPTOPP_FASTCALL SHA256_SSE_SHA_HashBlocks(word32 *state, const word32 *data, size_t length);
#elif CRYPTOPP_BOOL_ARM_CRYPTO_INTRINSICS_AVAILABLE
static void CRYPTOPP_FASTCALL SHA256_ARM_SHA_HashBlocks(word32 *state, const word32 *data, size_t length);
#endif
#if (defined(CRYPTOPP_X86_ASM_AVAILABLE) || defined(CRYPTOPP_X32_ASM_AVAILABLE) || defined(CRYPTOPP_X64_MASM_AVAILABLE)) && !defined(CRYPTOPP_DISABLE_SHA_ASM)
pfnSHAHashBlocks InitializeSHA256HashBlocks()
{
#if CRYPTOPP_BOOL_SSE_SHA_INTRINSICS_AVAILABLE
if (HasSHA())
return &SHA256_SSE_SHA_HashBlocks;
else
#endif
#if CRYPTOPP_BOOL_ARM_CRYPTO_INTRINSICS_AVAILABLE
if (HasSHA2())
return &SHA256_ARM_SHA_HashBlocks;
else
#endif
return &X86_SHA256_HashBlocks;
}
size_t SHA256::HashMultipleBlocks(const word32 *input, size_t length)
{
static const pfnSHAHashBlocks s_pfn = InitializeSHA256HashBlocks();
s_pfn(m_state, input, (length&(size_t(0)-BLOCKSIZE)) - !HasSSE2());
return length % BLOCKSIZE;
}
size_t SHA224::HashMultipleBlocks(const word32 *input, size_t length)
{
static const pfnSHAHashBlocks s_pfn = InitializeSHA256HashBlocks();
s_pfn(m_state, input, (length&(size_t(0)-BLOCKSIZE)) - !HasSSE2());
return length % BLOCKSIZE;
}
#endif
#define blk2(i) (W[i&15]+=s1(W[(i-2)&15])+W[(i-7)&15]+s0(W[(i-15)&15]))
#define Ch(x,y,z) (z^(x&(y^z)))
#define Maj(x,y,z) (y^((x^y)&(y^z)))
#define a(i) T[(0-i)&7]
#define b(i) T[(1-i)&7]
#define c(i) T[(2-i)&7]
#define d(i) T[(3-i)&7]
#define e(i) T[(4-i)&7]
#define f(i) T[(5-i)&7]
#define g(i) T[(6-i)&7]
#define h(i) T[(7-i)&7]
#define R(i) h(i)+=S1(e(i))+Ch(e(i),f(i),g(i))+SHA256_K[i+j]+(j?blk2(i):blk0(i));\
d(i)+=h(i);h(i)+=S0(a(i))+Maj(a(i),b(i),c(i))
// for SHA256
#define S0(x) (rotrFixed(x,2)^rotrFixed(x,13)^rotrFixed(x,22))
#define S1(x) (rotrFixed(x,6)^rotrFixed(x,11)^rotrFixed(x,25))
#define s0(x) (rotrFixed(x,7)^rotrFixed(x,18)^(x>>3))
#define s1(x) (rotrFixed(x,17)^rotrFixed(x,19)^(x>>10))
#if defined(__OPTIMIZE_SIZE__)
// Smaller but slower
void SHA256_CXX_Transform(word32 *state, const word32 *data)
{
word32 W[32], T[20];
unsigned int i = 0, j = 0;
word32 *t = T+8;
memcpy(t, state, 8*4);
word32 e = t[4], a = t[0];
do
{
word32 w = data[j];
W[j] = w;
w += SHA256_K[j];
w += t[7];
w += S1(e);
w += Ch(e, t[5], t[6]);
e = t[3] + w;
t[3] = t[3+8] = e;
w += S0(t[0]);
a = w + Maj(a, t[1], t[2]);
t[-1] = t[7] = a;
--t;
++j;
if (j%8 == 0)
t += 8;
} while (j<16);
do
{
i = j&0xf;
word32 w = s1(W[i+16-2]) + s0(W[i+16-15]) + W[i] + W[i+16-7];
W[i+16] = W[i] = w;
w += SHA256_K[j];
w += t[7];
w += S1(e);
w += Ch(e, t[5], t[6]);
e = t[3] + w;
t[3] = t[3+8] = e;
w += S0(t[0]);
a = w + Maj(a, t[1], t[2]);
t[-1] = t[7] = a;
w = s1(W[(i+1)+16-2]) + s0(W[(i+1)+16-15]) + W[(i+1)] + W[(i+1)+16-7];
W[(i+1)+16] = W[(i+1)] = w;
w += SHA256_K[j+1];
w += (t-1)[7];
w += S1(e);
w += Ch(e, (t-1)[5], (t-1)[6]);
e = (t-1)[3] + w;
(t-1)[3] = (t-1)[3+8] = e;
w += S0((t-1)[0]);
a = w + Maj(a, (t-1)[1], (t-1)[2]);
(t-1)[-1] = (t-1)[7] = a;
t-=2;
j+=2;
if (j%8 == 0)
t += 8;
} while (j<64);
state[0] += a;
state[1] += t[1];
state[2] += t[2];
state[3] += t[3];
state[4] += e;