ios平台上国密sm3的实现，iphone4s,5,6,6s验证通过
工作需要用到了sm3,上网一搜goldboar的版本被引用最多的，可这个版本却有问题，搜了些别人的版本都不如他的好，有的甚至移植过来编译不过。最后还是用goldboar版本修改了。
上图是我用goldboar和Odzhan提供的版本在不同环境下计算“abc”的结果，两个版本均无法在iphone6s上计算正确，最后跟踪发现是iphone6s上long形为8字节导致的。遂修改代码中原有的unsigned long 类型为uint32_t 。问题即得到解决，现将代码贴此，需者取之。
/*
本代码在goldboar提供的版本的基础上进行修改，http://blog.csdn.net/goldboar/article/details/6932274
包括
1，参照网上的说法修改shl rotl宏 http://blog.csdn.net/wak0408/article/details/50372386
2，在iphone6上long是8字节的，实际需要4字节的，导致iphone6s上计算结果不正确，所以把代码中的unsigned long 改成了 uint32_t
mender：swibyn
email:swibyn@qq.com
*/
/**
* \file sm3.h
* thanks to Xyssl
* SM3 standards:http://www.oscca.gov.cn/News/201012/News_1199.htm
* author:goldboar
* email:goldboar@163.com
* 2011-10-26
*/
#ifndef XYSSL_SM3_H_cc
#define XYSSL_SM3_H_cc
/**
* \brief SM3 context structure
*/
typedef struct
{
uint32_t total[2]; /*!< number of bytes processed */
uint32_t state[8]; /*!< intermediate digest state */
unsigned char buffer[64]; /*!< data block being processed */
unsigned char ipad[64]; /*!< HMAC: inner padding */
unsigned char opad[64]; /*!< HMAC: outer padding */
}
sm3_context_cc;
#ifdef __cplusplus
extern "C" {
#endif
/**
* \brief SM3 context setup
*
* \param ctx context to be initialized
*/
void sm3_starts( sm3_context_cc *ctx );
/**
* \brief SM3 process buffer
*
* \param ctx SM3 context
* \param input buffer holding the data
* \param ilen length of the input data
*/
void sm3_update( sm3_context_cc *ctx, unsigned char *input, int ilen );
/**
* \brief SM3 final digest
*
* \param ctx SM3 context
*/
void sm3_finish( sm3_context_cc *ctx, unsigned char output[32] );
/**
* \brief Output = SM3( input buffer )
*
* \param input buffer holding the data
* \param ilen length of the input data
* \param output SM3 checksum result
*/
void goldboar_cc_sm3( unsigned char *input, int ilen,
unsigned char output[32]);
/**
* \brief Output = SM3( file contents )
*
* \param path input file name
* \param output SM3 checksum result
*
* \return 0 if successful, 1 if fopen failed,
* or 2 if fread failed
*/
int sm3_file( char *path, unsigned char output[32] );
/**
* \brief SM3 HMAC context setup
*
* \param ctx HMAC context to be initialized
* \param key HMAC secret key
* \param keylen length of the HMAC key
*/
void sm3_hmac_starts( sm3_context_cc *ctx, unsigned char *key, int keylen);
/**
* \brief SM3 HMAC process buffer
*
* \param ctx HMAC context
* \param input buffer holding the data
* \param ilen length of the input data
*/
void sm3_hmac_update( sm3_context_cc *ctx, unsigned char *input, int ilen );
/**
* \brief SM3 HMAC final digest
*
* \param ctx HMAC context
* \param output SM3 HMAC checksum result
*/
void sm3_hmac_finish( sm3_context_cc *ctx, unsigned char output[32] );
/**
* \brief Output = HMAC-SM3( hmac key, input buffer )
*
* \param key HMAC secret key
* \param keylen length of the HMAC key
* \param input buffer holding the data
* \param ilen length of the input data
* \param output HMAC-SM3 result
*/
void sm3_hmac( unsigned char *key, int keylen,
unsigned char *input, int ilen,
unsigned char output[32] );
#ifdef __cplusplus
}
#endif
#endif /* sm3.h *//*
本代码在goldboar提供的版本的基础上进行修改，包括
1，参照网上的说法修改shl rotl宏 http://blog.csdn.net/wak0408/article/details/50372386
2，在iphone6上long是8字节的，实际需要4字节的，导致iphone6s上计算结果不正确，所以把代码中的unsigned long 改成了 uint32_t
mender：swibyn
email:swibyn@qq.com
*/
/*
* SM3 Hash alogrith
* thanks to Xyssl
* author:goldboar
* email:goldboar@163.com
* 2011-10-26
*/
//Testing data from SM3 Standards
//http://www.oscca.gov.cn/News/201012/News_1199.htm
// Sample 1
// Input:"abc"
// Output:66c7f0f4 62eeedd9 d1f2d46b dc10e4e2 4167c487 5cf2f7a2 297da02b 8f4ba8e0
// Sample 2
// Input:"abcdabcdabcdabcdabcdabcdabcdabcdabcdabcdabcdabcdabcdabcdabcdabcd"
// Outpuf:debe9ff9 2275b8a1 38604889 c18e5a4d 6fdb70e5 387e5765 293dcba3 9c0c5732
//#include "stdafx.h"
#include
#include //———20170824追加——-
sm3 计算调用接口
1，传入缓存指针的方式
void goldboar_cc_sm3( unsigned char *input, int ilen,
unsigned char output[32]);
2，传入文件路径的方式
int sm3_file( char *path, unsigned char output[32] );