我尝试使用 mbedTLS 实现 AES-CMAC。我收到一些错误:
未定义的引用
mbedtls_cipher_cmac_starts
,未定义的引用mbedtls_cipher_cmac_update
,未定义的引用mbedtls_cipher_cmac_finish
,
为什么这些功能不能解决,即使mbedtls_cipher_init
并且mbedtls_cipher_setup
可以?
顺便提一句。我在同一个项目下使用 mbedTLS 实现了 AES 没有问题。我使用 Eclipse Nano。
这是我的代码:
#include "stdio.h"
#include "stdlib.h"
#include "string.h"
#include "openssl/evp.h"
#include "openssl/cmac.h"
#include "mbedtls/cmac.h"
#include "mbedtls/cipher.h"
using namespace std;
unsigned char key[16]={0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
int main()
{
unsigned char m[100],m_len=32;
unsigned char out[16],out1[16],out2[16];
size_t d_len;
int i,ret;
mbedtls_cipher_context_t m_ctx;
const mbedtls_cipher_info_t *cipher_info;
cipher_info = mbedtls_cipher_info_from_type( MBEDTLS_CIPHER_AES_128_ECB );
if(cipher_info==NULL)
printf("\nmbedtls_cipher_info_from_type failed");
mbedtls_cipher_init(&m_ctx);
ret=mbedtls_cipher_setup( &m_ctx, cipher_info );
printf("\n mbedtls_cipher_setup returned %d %d",ret, m_ctx.cipher_info->type);
ret=mbedtls_cipher_cmac_starts(&m_ctx,key,128);
printf("\n mbedtls_cipher_cmac_starts returned %d",ret);
ret= mbedtls_cipher_cmac_update(&m_ctx, m,m_len);
printf("\n mbedtls_cipher_cmac_update returned %d",ret);
ret=mbedtls_cipher_cmac_finish(&m_ctx,out1);
printf("\n mbedtls_cipher_cmac_starts returned %d",ret);
d_len=16;
printf("\nLength is %d\n",(int)d_len);
for(i=0;i<d_len;i++)
{
printf("%x ",out1[i]);
}
return 0;
}