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shell files for autotools

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This commit is contained in:
Kaleb Himes
2014-12-19 10:19:29 -07:00
parent a5529b124d
commit d6f37bd34f
3 changed files with 0 additions and 750 deletions
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wolfcrypt/src/integer.c Normal file
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wolfcrypt/src/sha.c
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/* sha.c
*
* Copyright (C) 2006-2014 wolfSSL Inc.
*
* This file is part of CyaSSL.
*
* CyaSSL is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* CyaSSL is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <cyassl/ctaocrypt/settings.h>
#if !defined(NO_SHA)
#ifdef CYASSL_PIC32MZ_HASH
#define InitSha InitSha_sw
#define ShaUpdate ShaUpdate_sw
#define ShaFinal ShaFinal_sw
#endif
#ifdef HAVE_FIPS
/* set NO_WRAPPERS before headers, use direct internal f()s not wrappers */
#define FIPS_NO_WRAPPERS
#endif
#include <cyassl/ctaocrypt/sha.h>
#include <cyassl/ctaocrypt/logging.h>
#include <cyassl/ctaocrypt/error-crypt.h>
#ifdef NO_INLINE
#include <cyassl/ctaocrypt/misc.h>
#else
#include <ctaocrypt/src/misc.c>
#endif
#ifdef FREESCALE_MMCAU
#include "cau_api.h"
#define XTRANSFORM(S,B) cau_sha1_hash_n((B), 1, ((S))->digest)
#else
#define XTRANSFORM(S,B) Transform((S))
#endif
#ifdef STM32F2_HASH
/*
* STM32F2 hardware SHA1 support through the STM32F2 standard peripheral
* library. Documentation located in STM32F2xx Standard Peripheral Library
* document (See note in README).
*/
#include "stm32f2xx.h"
#include "stm32f2xx_hash.h"
int InitSha(Sha* sha)
{
/* STM32F2 struct notes:
* sha->buffer = first 4 bytes used to hold partial block if needed
* sha->buffLen = num bytes currently stored in sha->buffer
* sha->loLen = num bytes that have been written to STM32 FIFO
*/
XMEMSET(sha->buffer, 0, SHA_REG_SIZE);
sha->buffLen = 0;
sha->loLen = 0;
/* initialize HASH peripheral */
HASH_DeInit();
/* configure algo used, algo mode, datatype */
HASH->CR &= ~ (HASH_CR_ALGO | HASH_CR_DATATYPE | HASH_CR_MODE);
HASH->CR |= (HASH_AlgoSelection_SHA1 | HASH_AlgoMode_HASH
| HASH_DataType_8b);
/* reset HASH processor */
HASH->CR |= HASH_CR_INIT;
return 0;
}
int ShaUpdate(Sha* sha, const byte* data, word32 len)
{
word32 i = 0;
word32 fill = 0;
word32 diff = 0;
/* if saved partial block is available */
if (sha->buffLen) {
fill = 4 - sha->buffLen;
/* if enough data to fill, fill and push to FIFO */
if (fill <= len) {
XMEMCPY((byte*)sha->buffer + sha->buffLen, data, fill);
HASH_DataIn(*(uint32_t*)sha->buffer);
data += fill;
len -= fill;
sha->loLen += 4;
sha->buffLen = 0;
} else {
/* append partial to existing stored block */
XMEMCPY((byte*)sha->buffer + sha->buffLen, data, len);
sha->buffLen += len;
return;
}
}
/* write input block in the IN FIFO */
for(i = 0; i < len; i += 4)
{
diff = len - i;
if ( diff < 4) {
/* store incomplete last block, not yet in FIFO */
XMEMSET(sha->buffer, 0, SHA_REG_SIZE);
XMEMCPY((byte*)sha->buffer, data, diff);
sha->buffLen = diff;
} else {
HASH_DataIn(*(uint32_t*)data);
data+=4;
}
}
/* keep track of total data length thus far */
sha->loLen += (len - sha->buffLen);
return 0;
}
int ShaFinal(Sha* sha, byte* hash)
{
__IO uint16_t nbvalidbitsdata = 0;
/* finish reading any trailing bytes into FIFO */
if (sha->buffLen) {
HASH_DataIn(*(uint32_t*)sha->buffer);
sha->loLen += sha->buffLen;
}
/* calculate number of valid bits in last word of input data */
nbvalidbitsdata = 8 * (sha->loLen % SHA_REG_SIZE);
/* configure number of valid bits in last word of the data */
HASH_SetLastWordValidBitsNbr(nbvalidbitsdata);
/* start HASH processor */
HASH_StartDigest();
/* wait until Busy flag == RESET */
while (HASH_GetFlagStatus(HASH_FLAG_BUSY) != RESET) {}
/* read message digest */
sha->digest[0] = HASH->HR[0];
sha->digest[1] = HASH->HR[1];
sha->digest[2] = HASH->HR[2];
sha->digest[3] = HASH->HR[3];
sha->digest[4] = HASH->HR[4];
ByteReverseWords(sha->digest, sha->digest, SHA_DIGEST_SIZE);
XMEMCPY(hash, sha->digest, SHA_DIGEST_SIZE);
return InitSha(sha); /* reset state */
}
#else /* CTaoCrypt software implementation */
#ifndef min
static INLINE word32 min(word32 a, word32 b)
{
return a > b ? b : a;
}
#endif /* min */
int InitSha(Sha* sha)
{
#ifdef FREESCALE_MMCAU
cau_sha1_initialize_output(sha->digest);
#else
sha->digest[0] = 0x67452301L;
sha->digest[1] = 0xEFCDAB89L;
sha->digest[2] = 0x98BADCFEL;
sha->digest[3] = 0x10325476L;
sha->digest[4] = 0xC3D2E1F0L;
#endif
sha->buffLen = 0;
sha->loLen = 0;
sha->hiLen = 0;
return 0;
}
#ifndef FREESCALE_MMCAU
#define blk0(i) (W[i] = sha->buffer[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 Transform(Sha* sha)
{
word32 W[SHA_BLOCK_SIZE / sizeof(word32)];
/* Copy context->state[] to working vars */
word32 a = sha->digest[0];
word32 b = sha->digest[1];
word32 c = sha->digest[2];
word32 d = sha->digest[3];
word32 e = sha->digest[4];
#ifdef USE_SLOW_SHA
word32 t, i;
for (i = 0; i < 16; i++) {
R0(a, b, c, d, e, i);
t = e; e = d; d = c; c = b; b = a; a = t;
}
for (; i < 20; i++) {
R1(a, b, c, d, e, i);
t = e; e = d; d = c; c = b; b = a; a = t;
}
for (; i < 40; i++) {
R2(a, b, c, d, e, i);
t = e; e = d; d = c; c = b; b = a; a = t;
}
for (; i < 60; i++) {
R3(a, b, c, d, e, i);
t = e; e = d; d = c; c = b; b = a; a = t;
}
for (; i < 80; i++) {
R4(a, b, c, d, e, i);
t = e; e = d; d = c; c = b; b = a; a = t;
}
#else
/* nearly 1 K bigger in code size but 25% faster */
/* 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);
#endif
/* Add the working vars back into digest state[] */
sha->digest[0] += a;
sha->digest[1] += b;
sha->digest[2] += c;
sha->digest[3] += d;
sha->digest[4] += e;
}
#endif /* FREESCALE_MMCAU */
static INLINE void AddLength(Sha* sha, word32 len)
{
word32 tmp = sha->loLen;
if ( (sha->loLen += len) < tmp)
sha->hiLen++; /* carry low to high */
}
int ShaUpdate(Sha* sha, const byte* data, word32 len)
{
/* do block size increments */
byte* local = (byte*)sha->buffer;
while (len) {
word32 add = min(len, SHA_BLOCK_SIZE - sha->buffLen);
XMEMCPY(&local[sha->buffLen], data, add);
sha->buffLen += add;
data += add;
len -= add;
if (sha->buffLen == SHA_BLOCK_SIZE) {
#if defined(LITTLE_ENDIAN_ORDER) && !defined(FREESCALE_MMCAU)
ByteReverseWords(sha->buffer, sha->buffer, SHA_BLOCK_SIZE);
#endif
XTRANSFORM(sha, local);
AddLength(sha, SHA_BLOCK_SIZE);
sha->buffLen = 0;
}
}
return 0;
}
int ShaFinal(Sha* sha, byte* hash)
{
byte* local = (byte*)sha->buffer;
AddLength(sha, sha->buffLen); /* before adding pads */
local[sha->buffLen++] = 0x80; /* add 1 */
/* pad with zeros */
if (sha->buffLen > SHA_PAD_SIZE) {
XMEMSET(&local[sha->buffLen], 0, SHA_BLOCK_SIZE - sha->buffLen);
sha->buffLen += SHA_BLOCK_SIZE - sha->buffLen;
#if defined(LITTLE_ENDIAN_ORDER) && !defined(FREESCALE_MMCAU)
ByteReverseWords(sha->buffer, sha->buffer, SHA_BLOCK_SIZE);
#endif
XTRANSFORM(sha, local);
sha->buffLen = 0;
}
XMEMSET(&local[sha->buffLen], 0, SHA_PAD_SIZE - sha->buffLen);
/* put lengths in bits */
sha->hiLen = (sha->loLen >> (8*sizeof(sha->loLen) - 3)) +
(sha->hiLen << 3);
sha->loLen = sha->loLen << 3;
/* store lengths */
#if defined(LITTLE_ENDIAN_ORDER) && !defined(FREESCALE_MMCAU)
ByteReverseWords(sha->buffer, sha->buffer, SHA_BLOCK_SIZE);
#endif
/* ! length ordering dependent on digest endian type ! */
XMEMCPY(&local[SHA_PAD_SIZE], &sha->hiLen, sizeof(word32));
XMEMCPY(&local[SHA_PAD_SIZE + sizeof(word32)], &sha->loLen, sizeof(word32));
#ifdef FREESCALE_MMCAU
/* Kinetis requires only these bytes reversed */
ByteReverseWords(&sha->buffer[SHA_PAD_SIZE/sizeof(word32)],
&sha->buffer[SHA_PAD_SIZE/sizeof(word32)],
2 * sizeof(word32));
#endif
XTRANSFORM(sha, local);
#ifdef LITTLE_ENDIAN_ORDER
ByteReverseWords(sha->digest, sha->digest, SHA_DIGEST_SIZE);
#endif
XMEMCPY(hash, sha->digest, SHA_DIGEST_SIZE);
return InitSha(sha); /* reset state */
}
#endif /* STM32F2_HASH */
int ShaHash(const byte* data, word32 len, byte* hash)
{
int ret = 0;
#ifdef CYASSL_SMALL_STACK
Sha* sha;
#else
Sha sha[1];
#endif
#ifdef CYASSL_SMALL_STACK
sha = (Sha*)XMALLOC(sizeof(Sha), NULL, DYNAMIC_TYPE_TMP_BUFFER);
if (sha == NULL)
return MEMORY_E;
#endif
if ((ret = InitSha(sha)) != 0) {
CYASSL_MSG("InitSha failed");
}
else {
ShaUpdate(sha, data, len);
ShaFinal(sha, hash);
}
#ifdef CYASSL_SMALL_STACK
XFREE(sha, NULL, DYNAMIC_TYPE_TMP_BUFFER);
#endif
return ret;
}
#endif /* NO_SHA */

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wolfcrypt/src/sha256.c
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/* sha256.c
*
* Copyright (C) 2006-2014 wolfSSL Inc.
*
* This file is part of CyaSSL.
*
* CyaSSL is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* CyaSSL is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
/* code submitted by raphael.huck@efixo.com */
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <cyassl/ctaocrypt/settings.h>
#if !defined(NO_SHA256)
#ifdef CYASSL_PIC32MZ_HASH
#define InitSha256 InitSha256_sw
#define Sha256Update Sha256Update_sw
#define Sha256Final Sha256Final_sw
#endif
#ifdef HAVE_FIPS
/* set NO_WRAPPERS before headers, use direct internal f()s not wrappers */
#define FIPS_NO_WRAPPERS
#endif
#include <cyassl/ctaocrypt/sha256.h>
#include <cyassl/ctaocrypt/logging.h>
#include <cyassl/ctaocrypt/error-crypt.h>
#ifdef NO_INLINE
#include <cyassl/ctaocrypt/misc.h>
#else
#include <ctaocrypt/src/misc.c>
#endif
#ifdef FREESCALE_MMCAU
#include "cau_api.h"
#endif
#ifndef min
static INLINE word32 min(word32 a, word32 b)
{
return a > b ? b : a;
}
#endif /* min */
int InitSha256(Sha256* sha256)
{
#ifdef FREESCALE_MMCAU
cau_sha256_initialize_output(sha256->digest);
#else
sha256->digest[0] = 0x6A09E667L;
sha256->digest[1] = 0xBB67AE85L;
sha256->digest[2] = 0x3C6EF372L;
sha256->digest[3] = 0xA54FF53AL;
sha256->digest[4] = 0x510E527FL;
sha256->digest[5] = 0x9B05688CL;
sha256->digest[6] = 0x1F83D9ABL;
sha256->digest[7] = 0x5BE0CD19L;
#endif
sha256->buffLen = 0;
sha256->loLen = 0;
sha256->hiLen = 0;
return 0;
}
#ifdef FREESCALE_MMCAU
#define XTRANSFORM(S,B) Transform((S), (B))
static int Transform(Sha256* sha256, byte* buf)
{
cau_sha256_hash_n(buf, 1, sha256->digest);
return 0;
}
#else
#define XTRANSFORM(S,B) Transform((S))
static const word32 K[64] = {
0x428A2F98L, 0x71374491L, 0xB5C0FBCFL, 0xE9B5DBA5L, 0x3956C25BL,
0x59F111F1L, 0x923F82A4L, 0xAB1C5ED5L, 0xD807AA98L, 0x12835B01L,
0x243185BEL, 0x550C7DC3L, 0x72BE5D74L, 0x80DEB1FEL, 0x9BDC06A7L,
0xC19BF174L, 0xE49B69C1L, 0xEFBE4786L, 0x0FC19DC6L, 0x240CA1CCL,
0x2DE92C6FL, 0x4A7484AAL, 0x5CB0A9DCL, 0x76F988DAL, 0x983E5152L,
0xA831C66DL, 0xB00327C8L, 0xBF597FC7L, 0xC6E00BF3L, 0xD5A79147L,
0x06CA6351L, 0x14292967L, 0x27B70A85L, 0x2E1B2138L, 0x4D2C6DFCL,
0x53380D13L, 0x650A7354L, 0x766A0ABBL, 0x81C2C92EL, 0x92722C85L,
0xA2BFE8A1L, 0xA81A664BL, 0xC24B8B70L, 0xC76C51A3L, 0xD192E819L,
0xD6990624L, 0xF40E3585L, 0x106AA070L, 0x19A4C116L, 0x1E376C08L,
0x2748774CL, 0x34B0BCB5L, 0x391C0CB3L, 0x4ED8AA4AL, 0x5B9CCA4FL,
0x682E6FF3L, 0x748F82EEL, 0x78A5636FL, 0x84C87814L, 0x8CC70208L,
0x90BEFFFAL, 0xA4506CEBL, 0xBEF9A3F7L, 0xC67178F2L
};
#define Ch(x,y,z) ((z) ^ ((x) & ((y) ^ (z))))
#define Maj(x,y,z) ((((x) | (y)) & (z)) | ((x) & (y)))
#define S(x, n) rotrFixed(x, n)
#define R(x, n) (((x)&0xFFFFFFFFU)>>(n))
#define Sigma0(x) (S(x, 2) ^ S(x, 13) ^ S(x, 22))
#define Sigma1(x) (S(x, 6) ^ S(x, 11) ^ S(x, 25))
#define Gamma0(x) (S(x, 7) ^ S(x, 18) ^ R(x, 3))
#define Gamma1(x) (S(x, 17) ^ S(x, 19) ^ R(x, 10))
#define RND(a,b,c,d,e,f,g,h,i) \
t0 = (h) + Sigma1((e)) + Ch((e), (f), (g)) + K[(i)] + W[(i)]; \
t1 = Sigma0((a)) + Maj((a), (b), (c)); \
(d) += t0; \
(h) = t0 + t1;
static int Transform(Sha256* sha256)
{
word32 S[8], t0, t1;
int i;
#ifdef CYASSL_SMALL_STACK
word32* W;
W = (word32*) XMALLOC(sizeof(word32) * 64, NULL, DYNAMIC_TYPE_TMP_BUFFER);
if (W == NULL)
return MEMORY_E;
#else
word32 W[64];
#endif
/* Copy context->state[] to working vars */
for (i = 0; i < 8; i++)
S[i] = sha256->digest[i];
for (i = 0; i < 16; i++)
W[i] = sha256->buffer[i];
for (i = 16; i < 64; i++)
W[i] = Gamma1(W[i-2]) + W[i-7] + Gamma0(W[i-15]) + W[i-16];
for (i = 0; i < 64; i += 8) {
RND(S[0],S[1],S[2],S[3],S[4],S[5],S[6],S[7],i+0);
RND(S[7],S[0],S[1],S[2],S[3],S[4],S[5],S[6],i+1);
RND(S[6],S[7],S[0],S[1],S[2],S[3],S[4],S[5],i+2);
RND(S[5],S[6],S[7],S[0],S[1],S[2],S[3],S[4],i+3);
RND(S[4],S[5],S[6],S[7],S[0],S[1],S[2],S[3],i+4);
RND(S[3],S[4],S[5],S[6],S[7],S[0],S[1],S[2],i+5);
RND(S[2],S[3],S[4],S[5],S[6],S[7],S[0],S[1],i+6);
RND(S[1],S[2],S[3],S[4],S[5],S[6],S[7],S[0],i+7);
}
/* Add the working vars back into digest state[] */
for (i = 0; i < 8; i++) {
sha256->digest[i] += S[i];
}
#ifdef CYASSL_SMALL_STACK
XFREE(W, NULL, DYNAMIC_TYPE_TMP_BUFFER);
#endif
return 0;
}
#endif /* FREESCALE_MMCAU */
static INLINE void AddLength(Sha256* sha256, word32 len)
{
word32 tmp = sha256->loLen;
if ( (sha256->loLen += len) < tmp)
sha256->hiLen++; /* carry low to high */
}
int Sha256Update(Sha256* sha256, const byte* data, word32 len)
{
/* do block size increments */
byte* local = (byte*)sha256->buffer;
while (len) {
word32 add = min(len, SHA256_BLOCK_SIZE - sha256->buffLen);
XMEMCPY(&local[sha256->buffLen], data, add);
sha256->buffLen += add;
data += add;
len -= add;
if (sha256->buffLen == SHA256_BLOCK_SIZE) {
int ret;
#if defined(LITTLE_ENDIAN_ORDER) && !defined(FREESCALE_MMCAU)
ByteReverseWords(sha256->buffer, sha256->buffer,
SHA256_BLOCK_SIZE);
#endif
ret = XTRANSFORM(sha256, local);
if (ret != 0)
return ret;
AddLength(sha256, SHA256_BLOCK_SIZE);
sha256->buffLen = 0;
}
}
return 0;
}
int Sha256Final(Sha256* sha256, byte* hash)
{
byte* local = (byte*)sha256->buffer;
int ret;
AddLength(sha256, sha256->buffLen); /* before adding pads */
local[sha256->buffLen++] = 0x80; /* add 1 */
/* pad with zeros */
if (sha256->buffLen > SHA256_PAD_SIZE) {
XMEMSET(&local[sha256->buffLen], 0, SHA256_BLOCK_SIZE - sha256->buffLen);
sha256->buffLen += SHA256_BLOCK_SIZE - sha256->buffLen;
#if defined(LITTLE_ENDIAN_ORDER) && !defined(FREESCALE_MMCAU)
ByteReverseWords(sha256->buffer, sha256->buffer, SHA256_BLOCK_SIZE);
#endif
ret = XTRANSFORM(sha256, local);
if (ret != 0)
return ret;
sha256->buffLen = 0;
}
XMEMSET(&local[sha256->buffLen], 0, SHA256_PAD_SIZE - sha256->buffLen);
/* put lengths in bits */
sha256->hiLen = (sha256->loLen >> (8*sizeof(sha256->loLen) - 3)) +
(sha256->hiLen << 3);
sha256->loLen = sha256->loLen << 3;
/* store lengths */
#if defined(LITTLE_ENDIAN_ORDER) && !defined(FREESCALE_MMCAU)
ByteReverseWords(sha256->buffer, sha256->buffer, SHA256_BLOCK_SIZE);
#endif
/* ! length ordering dependent on digest endian type ! */
XMEMCPY(&local[SHA256_PAD_SIZE], &sha256->hiLen, sizeof(word32));
XMEMCPY(&local[SHA256_PAD_SIZE + sizeof(word32)], &sha256->loLen,
sizeof(word32));
#ifdef FREESCALE_MMCAU
/* Kinetis requires only these bytes reversed */
ByteReverseWords(&sha256->buffer[SHA256_PAD_SIZE/sizeof(word32)],
&sha256->buffer[SHA256_PAD_SIZE/sizeof(word32)],
2 * sizeof(word32));
#endif
ret = XTRANSFORM(sha256, local);
if (ret != 0)
return ret;
#ifdef LITTLE_ENDIAN_ORDER
ByteReverseWords(sha256->digest, sha256->digest, SHA256_DIGEST_SIZE);
#endif
XMEMCPY(hash, sha256->digest, SHA256_DIGEST_SIZE);
return InitSha256(sha256); /* reset state */
}
int Sha256Hash(const byte* data, word32 len, byte* hash)
{
int ret = 0;
#ifdef CYASSL_SMALL_STACK
Sha256* sha256;
#else
Sha256 sha256[1];
#endif
#ifdef CYASSL_SMALL_STACK
sha256 = (Sha256*)XMALLOC(sizeof(Sha256), NULL, DYNAMIC_TYPE_TMP_BUFFER);
if (sha256 == NULL)
return MEMORY_E;
#endif
if ((ret = InitSha256(sha256)) != 0) {
CYASSL_MSG("InitSha256 failed");
}
else if ((ret = Sha256Update(sha256, data, len)) != 0) {
CYASSL_MSG("Sha256Update failed");
}
else if ((ret = Sha256Final(sha256, hash)) != 0) {
CYASSL_MSG("Sha256Final failed");
}
#ifdef CYASSL_SMALL_STACK
XFREE(sha256, NULL, DYNAMIC_TYPE_TMP_BUFFER);
#endif
return ret;
}
#endif /* NO_SHA256 */