Add crc32 and md5 to test lib

This commit is contained in:
Andreas Schiffler 2012-11-28 19:19:57 -08:00
parent 556c764047
commit 7daed4ab7b
6 changed files with 775 additions and 13 deletions

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@ -20,20 +20,22 @@
*/
/**
* \file SDLTest.h
* \file SDL_test.h
*
* Include file for SDL test framework.
*
* This code is a part of the SDL2_test library, not the main SDL library.
*/
#ifndef _SDLTest_h
#define _SDLTest_h
#ifndef _SDL_test_h
#define _SDL_test_h
#include "SDL.h"
#include "SDL_test_font.h"
#include "SDL_test_random.h"
#include "SDL_test_fuzzer.h"
#include "SDL_test_crc32.h"
#include "SDL_test_md5.h"
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
@ -55,6 +57,6 @@ extern "C" {
#endif
#include "close_code.h"
#endif /* _SDLTest_h */
#endif /* _SDL_test_h */
/* vi: set ts=4 sw=4 expandtab: */

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include/SDL_test_crc32.h Normal file
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/*
Simple DirectMedia Layer
Copyright (C) 1997-2012 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
/**
* \file SDL_test_crc32.h
*
* Include file for SDL test framework.
*
* This code is a part of the SDL2_test library, not the main SDL library.
*/
/*
Implements CRC32 calculations (default output is Perl String::CRC32 compatible).
*/
#ifndef _SDL_test_crc32_h
#define _SDL_test_crc32_h
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
/* *INDENT-OFF* */
extern "C" {
/* *INDENT-ON* */
#endif
/* ------------ Definitions --------- */
/* Definition shared by all CRC routines */
#ifndef CrcUint32
#define CrcUint32 unsigned int
#endif
#ifndef CrcUint8
#define CrcUint8 unsigned char
#endif
#ifdef ORIGINAL_METHOD
#define CRC32_POLY 0x04c11db7 /* AUTODIN II, Ethernet, & FDDI */
#else
#define CRC32_POLY 0xEDB88320 /* Perl String::CRC32 compatible */
#endif
/**
* Data structure for CRC32 (checksum) computation
*/
typedef struct {
CrcUint32 crc32_table[256]; /* CRC table */
} SDLTest_Crc32Context;
/* ---------- Function Prototypes ------------- */
/**
* /brief Initialize the CRC context
*
* Note: The function initializes the crc table required for all crc calculations.
*
* /param crcContext pointer to context variable
*
* /returns 0 for OK, -1 on error
*
*/
int SDLTest_Crc32Init(SDLTest_Crc32Context * crcContext);
/**
* /brief calculate a crc32 from a data block
*
* /param crcContext pointer to context variable
* /param inBuf input buffer to checksum
* /param inLen length of input buffer
* /param crc32 pointer to Uint32 to store the final CRC into
*
* /returns 0 for OK, -1 on error
*
*/
int SDLTest_crc32Calc(SDLTest_Crc32Context * crcContext, CrcUint8 *inBuf, CrcUint32 inLen, CrcUint32 *crc32);
/* Same routine broken down into three steps */
int SDLTest_Crc32CalcStart(SDLTest_Crc32Context * crcContext, CrcUint32 *crc32);
int SDLTest_Crc32CalcEnd(SDLTest_Crc32Context * crcContext, CrcUint32 *crc32);
int SDLTest_Crc32CalcBuffer(SDLTest_Crc32Context * crcContext, CrcUint8 *inBuf, CrcUint32 inLen, CrcUint32 *crc32);
/**
* /brief clean up CRC context
*
* /param crcContext pointer to context variable
*
* /returns 0 for OK, -1 on error
*
*/
int SDLTest_Crc32Done(SDLTest_Crc32Context * crcContext);
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
/* *INDENT-OFF* */
}
/* *INDENT-ON* */
#endif
#include "close_code.h"
#endif /* _SDL_test_crc32_h */
/* vi: set ts=4 sw=4 expandtab: */

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include/SDL_test_md5.h Normal file
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/*
Simple DirectMedia Layer
Copyright (C) 1997-2012 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
/**
* \file SDL_test_md5.h
*
* Include file for SDL test framework.
*
* This code is a part of the SDL2_test library, not the main SDL library.
*/
/*
***********************************************************************
** Header file for implementation of MD5 **
** RSA Data Security, Inc. MD5 Message-Digest Algorithm **
** Created: 2/17/90 RLR **
** Revised: 12/27/90 SRD,AJ,BSK,JT Reference C version **
** Revised (for MD5): RLR 4/27/91 **
** -- G modified to have y&~z instead of y&z **
** -- FF, GG, HH modified to add in last register done **
** -- Access pattern: round 2 works mod 5, round 3 works mod 3 **
** -- distinct additive constant for each step **
** -- round 4 added, working mod 7 **
***********************************************************************
*/
/*
***********************************************************************
** Message-digest routines: **
** To form the message digest for a message M **
** (1) Initialize a context buffer mdContext using MD5Init **
** (2) Call MD5Update on mdContext and M **
** (3) Call MD5Final on mdContext **
** The message digest is now in mdContext->digest[0...15] **
***********************************************************************
*/
#ifndef _SDL_test_md5_h
#define _SDL_test_md5_h
#include "begin_code.h"
/* Set up for C function definitions, even when using C++ */
#ifdef __cplusplus
/* *INDENT-OFF* */
extern "C" {
/* *INDENT-ON* */
#endif
/* ------------ Definitions --------- */
/* typedef a 32-bit type */
typedef unsigned long int MD5UINT4;
/* Data structure for MD5 (Message-Digest) computation */
typedef struct {
MD5UINT4 i[2]; /* number of _bits_ handled mod 2^64 */
MD5UINT4 buf[4]; /* scratch buffer */
unsigned char in[64]; /* input buffer */
unsigned char digest[16]; /* actual digest after Md5Final call */
} SDLTest_Md5Context;
/* ---------- Function Prototypes ------------- */
/**
* /brief initialize the context
*
* /param mdContext pointer to context variable
*
* Note: The function initializes the message-digest context
* mdContext. Call before each new use of the context -
* all fields are set to zero.
*/
void SDLTest_Md5Init(SDLTest_Md5Context * mdContext);
/**
* /brief update digest from variable length data
*
* /param mdContext pointer to context variable
* /param inBuf pointer to data array/string
* /param inLen length of data array/string
*
* Note: The function updates the message-digest context to account
* for the presence of each of the characters inBuf[0..inLen-1]
* in the message whose digest is being computed.
*/
void SDLTest_Md5Update(SDLTest_Md5Context * mdContext, unsigned char *inBuf,
unsigned int inLen);
/*
* /brief complete digest computation
*
* /param mdContext pointer to context variable
*
* Note: The function terminates the message-digest computation and
* ends with the desired message digest in mdContext.digest[0..15].
* Always call before using the digest[] variable.
*/
void SDLTest_Md5Final(SDLTest_Md5Context * mdContext);
/* Ends C function definitions when using C++ */
#ifdef __cplusplus
/* *INDENT-OFF* */
}
/* *INDENT-ON* */
#endif
#include "close_code.h"
#endif /* _SDL_test_md5_h */
/* vi: set ts=4 sw=4 expandtab: */

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@ -48,10 +48,7 @@ extern "C" {
/* *INDENT-ON* */
#endif
/* Function prototypes */
/* ------- Definitions ------- */
/* --- Definitions */
/*
* Macros that return a random number in a specific format.
@ -69,7 +66,8 @@ extern "C" {
unsigned int al;
} SDLTest_RandomContext;
/* ---- Function Prototypes -------- */
/* --- Function prototypes */
/**
* \brief Initialize random number generator with two integers.

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/*
Simple DirectMedia Layer
Copyright (C) 1997-2012 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
/*
Used by the test execution component.
Original source code contributed by A. Schiffler for GSOC project.
*/
#include "SDL_config.h"
#include "SDL_test.h"
int SDLTest_Crc32Init(SDLTest_Crc32Context *crcContext)
{
int i,j;
CrcUint32 c;
/* Sanity check context pointer */
if (crcContext==NULL) {
return -1;
}
/*
* Build auxiliary table for parallel byte-at-a-time CRC-32
*/
#ifdef ORIGINAL_METHOD
for (i = 0; i < 256; ++i) {
for (c = i << 24, j = 8; j > 0; --j) {
c = c & 0x80000000 ? (c << 1) ^ CRC32_POLY : (c << 1);
}
crcContext->crc32_table[i] = c;
}
#else
for (i=0; i<256; i++) {
c = i;
for (j=8; j>0; j--) {
if (c & 1) {
c = (c >> 1) ^ CRC32_POLY;
} else {
c >>= 1;
}
}
crcContext->crc32_table[i] = c;
}
#endif
return 0;
}
/* Complete CRC32 calculation on a memory block */
int SDLTest_Crc32Calc(SDLTest_Crc32Context * crcContext, CrcUint8 *inBuf, CrcUint32 inLen, CrcUint32 *crc32)
{
if (SDLTest_Crc32CalcStart(crcContext,crc32)) {
return -1;
}
if (SDLTest_Crc32CalcBuffer(crcContext, inBuf, inLen, crc32)) {
return -1;
}
if (SDLTest_Crc32CalcEnd(crcContext, crc32)) {
return -1;
}
return 0;
}
/* Start crc calculation */
int SDLTest_Crc32CalcStart(SDLTest_Crc32Context * crcContext, CrcUint32 *crc32)
{
/* Sanity check pointers */
if (crcContext==NULL) {
*crc32=0;
return -1;
}
/*
* Preload shift register, per CRC-32 spec
*/
*crc32 = 0xffffffff;
return 0;
}
/* Finish crc calculation */
int SDLTest_Crc32CalcEnd(SDLTest_Crc32Context * crcContext, CrcUint32 *crc32)
{
/* Sanity check pointers */
if (crcContext==NULL) {
*crc32=0;
return -1;
}
/*
* Return complement, per CRC-32 spec
*/
*crc32 = (~(*crc32));
return 0;
}
/* Include memory block in crc */
int SDLTest_Crc32CalcBuffer(SDLTest_Crc32Context * crcContext, CrcUint8 *inBuf, CrcUint32 inLen, CrcUint32 *crc32)
{
CrcUint8 *p;
register CrcUint32 crc;
if (crcContext==NULL) {
*crc32=0;
return -1;
}
if (inBuf==NULL) {
return -1;
}
/*
* Calculate CRC from data
*/
crc = *crc32;
for (p = inBuf; inLen > 0; ++p, --inLen) {
#ifdef ORIGINAL_METHOD
crc = (crc << 8) ^ crcContext->crc32_table[(crc >> 24) ^ *p];
#else
crc = ((crc >> 8) & 0x00FFFFFF) ^ crcContext->crc32_table[ (crc ^ *p) & 0xFF ];
#endif
}
*crc32 = crc;
return 0;
}
int SDLTest_Crc32Done(SDLTest_Crc32Context * crcContext)
{
if (crcContext==NULL) {
return -1;
}
return 0;
}

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/*
Simple DirectMedia Layer
Copyright (C) 1997-2012 Sam Lantinga <slouken@libsdl.org>
This software is provided 'as-is', without any express or implied
warranty. In no event will the authors be held liable for any damages
arising from the use of this software.
Permission is granted to anyone to use this software for any purpose,
including commercial applications, and to alter it and redistribute it
freely, subject to the following restrictions:
1. The origin of this software must not be misrepresented; you must not
claim that you wrote the original software. If you use this software
in a product, an acknowledgment in the product documentation would be
appreciated but is not required.
2. Altered source versions must be plainly marked as such, and must not be
misrepresented as being the original software.
3. This notice may not be removed or altered from any source distribution.
*/
/*
***********************************************************************
** RSA Data Security, Inc. MD5 Message-Digest Algorithm **
** Created: 2/17/90 RLR **
** Revised: 1/91 SRD,AJ,BSK,JT Reference C ver., 7/10 constant corr. **
***********************************************************************
*/
/*
***********************************************************************
** Copyright (C) 1990, RSA Data Security, Inc. All rights reserved. **
** **
** License to copy and use this software is granted provided that **
** it is identified as the "RSA Data Security, Inc. MD5 Message- **
** Digest Algorithm" in all material mentioning or referencing this **
** software or this function. **
** **
** License is also granted to make and use derivative works **
** provided that such works are identified as "derived from the RSA **
** Data Security, Inc. MD5 Message-Digest Algorithm" in all **
** material mentioning or referencing the derived work. **
** **
** RSA Data Security, Inc. makes no representations concerning **
** either the merchantability of this software or the suitability **
** of this software for any particular purpose. It is provided "as **
** is" without express or implied warranty of any kind. **
** **
** These notices must be retained in any copies of any part of this **
** documentation and/or software. **
***********************************************************************
*/
#include "SDL_config.h"
#include "SDL_test.h"
/* Forward declaration of static helper function */
static void SDLTest_Md5Transform(MD5UINT4 * buf, MD5UINT4 * in);
static unsigned char MD5PADDING[64] = {
0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00
};
/* F, G, H and I are basic MD5 functions */
#define F(x, y, z) (((x) & (y)) | ((~x) & (z)))
#define G(x, y, z) (((x) & (z)) | ((y) & (~z)))
#define H(x, y, z) ((x) ^ (y) ^ (z))
#define I(x, y, z) ((y) ^ ((x) | (~z)))
/* ROTATE_LEFT rotates x left n bits */
#define ROTATE_LEFT(x, n) (((x) << (n)) | ((x) >> (32-(n))))
/* FF, GG, HH, and II transformations for rounds 1, 2, 3, and 4 */
/* Rotation is separate from addition to prevent recomputation */
#define FF(a, b, c, d, x, s, ac) \
{(a) += F ((b), (c), (d)) + (x) + (MD5UINT4)(ac); \
(a) = ROTATE_LEFT ((a), (s)); \
(a) += (b); \
}
#define GG(a, b, c, d, x, s, ac) \
{(a) += G ((b), (c), (d)) + (x) + (MD5UINT4)(ac); \
(a) = ROTATE_LEFT ((a), (s)); \
(a) += (b); \
}
#define HH(a, b, c, d, x, s, ac) \
{(a) += H ((b), (c), (d)) + (x) + (MD5UINT4)(ac); \
(a) = ROTATE_LEFT ((a), (s)); \
(a) += (b); \
}
#define II(a, b, c, d, x, s, ac) \
{(a) += I ((b), (c), (d)) + (x) + (MD5UINT4)(ac); \
(a) = ROTATE_LEFT ((a), (s)); \
(a) += (b); \
}
/*
The routine MD5Init initializes the message-digest context
mdContext. All fields are set to zero.
*/
void SDLTest_Md5Init(SDLTest_Md5Context * mdContext)
{
if (mdContext==NULL) return;
mdContext->i[0] = mdContext->i[1] = (MD5UINT4) 0;
/*
* Load magic initialization constants.
*/
mdContext->buf[0] = (MD5UINT4) 0x67452301;
mdContext->buf[1] = (MD5UINT4) 0xefcdab89;
mdContext->buf[2] = (MD5UINT4) 0x98badcfe;
mdContext->buf[3] = (MD5UINT4) 0x10325476;
}
/*
The routine MD5Update updates the message-digest context to
account for the presence of each of the characters inBuf[0..inLen-1]
in the message whose digest is being computed.
*/
void SDLTest_Md5Update(SDLTest_Md5Context * mdContext, unsigned char *inBuf,
unsigned int inLen)
{
MD5UINT4 in[16];
int mdi;
unsigned int i, ii;
if (mdContext == NULL) return;
if (inBuf == NULL || inLen < 1) return;
/*
* compute number of bytes mod 64
*/
mdi = (int) ((mdContext->i[0] >> 3) & 0x3F);
/*
* update number of bits
*/
if ((mdContext->i[0] + ((MD5UINT4) inLen << 3)) < mdContext->i[0])
mdContext->i[1]++;
mdContext->i[0] += ((MD5UINT4) inLen << 3);
mdContext->i[1] += ((MD5UINT4) inLen >> 29);
while (inLen--) {
/*
* add new character to buffer, increment mdi
*/
mdContext->in[mdi++] = *inBuf++;
/*
* transform if necessary
*/
if (mdi == 0x40) {
for (i = 0, ii = 0; i < 16; i++, ii += 4)
in[i] = (((MD5UINT4) mdContext->in[ii + 3]) << 24) |
(((MD5UINT4) mdContext->in[ii + 2]) << 16) |
(((MD5UINT4) mdContext->in[ii + 1]) << 8) |
((MD5UINT4) mdContext->in[ii]);
SDLTest_Md5Transform(mdContext->buf, in);
mdi = 0;
}
}
}
/*
The routine MD5Final terminates the message-digest computation and
ends with the desired message digest in mdContext->digest[0...15].
*/
void SDLTest_Md5Final(SDLTest_Md5Context * mdContext)
{
MD5UINT4 in[16];
int mdi;
unsigned int i, ii;
unsigned int padLen;
if (mdContext == NULL) return;
/*
* save number of bits
*/
in[14] = mdContext->i[0];
in[15] = mdContext->i[1];
/*
* compute number of bytes mod 64
*/
mdi = (int) ((mdContext->i[0] >> 3) & 0x3F);
/*
* pad out to 56 mod 64
*/
padLen = (mdi < 56) ? (56 - mdi) : (120 - mdi);
SDLTest_Md5Update(mdContext, MD5PADDING, padLen);
/*
* append length in bits and transform
*/
for (i = 0, ii = 0; i < 14; i++, ii += 4)
in[i] = (((MD5UINT4) mdContext->in[ii + 3]) << 24) |
(((MD5UINT4) mdContext->in[ii + 2]) << 16) |
(((MD5UINT4) mdContext->in[ii + 1]) << 8) |
((MD5UINT4) mdContext->in[ii]);
SDLTest_Md5Transform(mdContext->buf, in);
/*
* store buffer in digest
*/
for (i = 0, ii = 0; i < 4; i++, ii += 4) {
mdContext->digest[ii] = (unsigned char) (mdContext->buf[i] & 0xFF);
mdContext->digest[ii + 1] =
(unsigned char) ((mdContext->buf[i] >> 8) & 0xFF);
mdContext->digest[ii + 2] =
(unsigned char) ((mdContext->buf[i] >> 16) & 0xFF);
mdContext->digest[ii + 3] =
(unsigned char) ((mdContext->buf[i] >> 24) & 0xFF);
}
}
/* Basic MD5 step. Transforms buf based on in.
*/
static void SDLTest_Md5Transform(MD5UINT4 * buf, MD5UINT4 * in)
{
MD5UINT4 a = buf[0], b = buf[1], c = buf[2], d = buf[3];
/*
* Round 1
*/
#define S11 7
#define S12 12
#define S13 17
#define S14 22
FF(a, b, c, d, in[0], S11, 3614090360u); /* 1 */
FF(d, a, b, c, in[1], S12, 3905402710u); /* 2 */
FF(c, d, a, b, in[2], S13, 606105819u); /* 3 */
FF(b, c, d, a, in[3], S14, 3250441966u); /* 4 */
FF(a, b, c, d, in[4], S11, 4118548399u); /* 5 */
FF(d, a, b, c, in[5], S12, 1200080426u); /* 6 */
FF(c, d, a, b, in[6], S13, 2821735955u); /* 7 */
FF(b, c, d, a, in[7], S14, 4249261313u); /* 8 */
FF(a, b, c, d, in[8], S11, 1770035416u); /* 9 */
FF(d, a, b, c, in[9], S12, 2336552879u); /* 10 */
FF(c, d, a, b, in[10], S13, 4294925233u); /* 11 */
FF(b, c, d, a, in[11], S14, 2304563134u); /* 12 */
FF(a, b, c, d, in[12], S11, 1804603682u); /* 13 */
FF(d, a, b, c, in[13], S12, 4254626195u); /* 14 */
FF(c, d, a, b, in[14], S13, 2792965006u); /* 15 */
FF(b, c, d, a, in[15], S14, 1236535329u); /* 16 */
/*
* Round 2
*/
#define S21 5
#define S22 9
#define S23 14
#define S24 20
GG(a, b, c, d, in[1], S21, 4129170786u); /* 17 */
GG(d, a, b, c, in[6], S22, 3225465664u); /* 18 */
GG(c, d, a, b, in[11], S23, 643717713u); /* 19 */
GG(b, c, d, a, in[0], S24, 3921069994u); /* 20 */
GG(a, b, c, d, in[5], S21, 3593408605u); /* 21 */
GG(d, a, b, c, in[10], S22, 38016083u); /* 22 */
GG(c, d, a, b, in[15], S23, 3634488961u); /* 23 */
GG(b, c, d, a, in[4], S24, 3889429448u); /* 24 */
GG(a, b, c, d, in[9], S21, 568446438u); /* 25 */
GG(d, a, b, c, in[14], S22, 3275163606u); /* 26 */
GG(c, d, a, b, in[3], S23, 4107603335u); /* 27 */
GG(b, c, d, a, in[8], S24, 1163531501u); /* 28 */
GG(a, b, c, d, in[13], S21, 2850285829u); /* 29 */
GG(d, a, b, c, in[2], S22, 4243563512u); /* 30 */
GG(c, d, a, b, in[7], S23, 1735328473u); /* 31 */
GG(b, c, d, a, in[12], S24, 2368359562u); /* 32 */
/*
* Round 3
*/
#define S31 4
#define S32 11
#define S33 16
#define S34 23
HH(a, b, c, d, in[5], S31, 4294588738u); /* 33 */
HH(d, a, b, c, in[8], S32, 2272392833u); /* 34 */
HH(c, d, a, b, in[11], S33, 1839030562u); /* 35 */
HH(b, c, d, a, in[14], S34, 4259657740u); /* 36 */
HH(a, b, c, d, in[1], S31, 2763975236u); /* 37 */
HH(d, a, b, c, in[4], S32, 1272893353u); /* 38 */
HH(c, d, a, b, in[7], S33, 4139469664u); /* 39 */
HH(b, c, d, a, in[10], S34, 3200236656u); /* 40 */
HH(a, b, c, d, in[13], S31, 681279174u); /* 41 */
HH(d, a, b, c, in[0], S32, 3936430074u); /* 42 */
HH(c, d, a, b, in[3], S33, 3572445317u); /* 43 */
HH(b, c, d, a, in[6], S34, 76029189u); /* 44 */
HH(a, b, c, d, in[9], S31, 3654602809u); /* 45 */
HH(d, a, b, c, in[12], S32, 3873151461u); /* 46 */
HH(c, d, a, b, in[15], S33, 530742520u); /* 47 */
HH(b, c, d, a, in[2], S34, 3299628645u); /* 48 */
/*
* Round 4
*/
#define S41 6
#define S42 10
#define S43 15
#define S44 21
II(a, b, c, d, in[0], S41, 4096336452u); /* 49 */
II(d, a, b, c, in[7], S42, 1126891415u); /* 50 */
II(c, d, a, b, in[14], S43, 2878612391u); /* 51 */
II(b, c, d, a, in[5], S44, 4237533241u); /* 52 */
II(a, b, c, d, in[12], S41, 1700485571u); /* 53 */
II(d, a, b, c, in[3], S42, 2399980690u); /* 54 */
II(c, d, a, b, in[10], S43, 4293915773u); /* 55 */
II(b, c, d, a, in[1], S44, 2240044497u); /* 56 */
II(a, b, c, d, in[8], S41, 1873313359u); /* 57 */
II(d, a, b, c, in[15], S42, 4264355552u); /* 58 */
II(c, d, a, b, in[6], S43, 2734768916u); /* 59 */
II(b, c, d, a, in[13], S44, 1309151649u); /* 60 */
II(a, b, c, d, in[4], S41, 4149444226u); /* 61 */
II(d, a, b, c, in[11], S42, 3174756917u); /* 62 */
II(c, d, a, b, in[2], S43, 718787259u); /* 63 */
II(b, c, d, a, in[9], S44, 3951481745u); /* 64 */
buf[0] += a;
buf[1] += b;
buf[2] += c;
buf[3] += d;
}