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added wrapper.c

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wangyu-
2017-09-18 06:34:03 -05:00
parent 3cdac6d95c
commit fb54df66e4
6 changed files with 106 additions and 2 deletions
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1
lib/aes_c/aes.c → lib/aes_faster_c/aes.c
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@@ -1221,6 +1221,7 @@ int aes_self_test( int verbose )
memset( buf, 0, 16 );
if( v == AES_DECRYPT )
{
aes_setkey_dec( &ctx, key, 128 + u * 64 );

0
lib/aes_c/aes.h → lib/aes_faster_c/aes.h
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65
lib/aes_faster_c/wrapper.c Normal file
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@@ -0,0 +1,65 @@
#include "aes.h"
#include <stdio.h>
#include <stdlib.h>
#if defined(AES256) && (AES256 == 1)
#define AES_KEYSIZE 256
#elif defined(AES192) && (AES192 == 1)
#define AES_KEYSIZE 192
#else
#define AES_KEYSIZE 128
#endif
static aes_context ctx_de;
static aes_context ctx_en;
inline void init_de()
{
static int done=0;
if(done==0)
{
aes_init( &ctx_de );
done=1;
}
}
inline void init_en()
{
static int done=0;
if(done==0)
{
aes_init( &ctx_en);
done=1;
}
}
void AES_ECB_encrypt(const uint8_t* input, const uint8_t* key, uint8_t *output, const uint32_t length)
{
init_en();
printf("AES_ECB_encrypt not implemented\n");
exit(-1);
}
void AES_ECB_decrypt(const uint8_t* input, const uint8_t* key, uint8_t *output, const uint32_t length)
{
init_de();
printf("AES_ECB_encrypt not implemented\n");
exit(-1);
}
void AES_CBC_encrypt_buffer(uint8_t* output, uint8_t* input, uint32_t length, const uint8_t* key, const uint8_t* iv)
{
char tmp_iv[16];
init_en();
if(key!=0) aes_setkey_enc(&ctx_en,key,AES_KEYSIZE);
memcpy(tmp_iv,iv,16);
aes_crypt_cbc( &ctx_en, AES_ENCRYPT, length, (unsigned char* )tmp_iv, (const unsigned char*)input,(unsigned char*) output );
return ;
}
void AES_CBC_decrypt_buffer(uint8_t* output, uint8_t* input, uint32_t length, const uint8_t* key, const uint8_t* iv)
{
char tmp_iv[16];
init_de();
if(key!=0) aes_setkey_dec(&ctx_de,key,AES_KEYSIZE);
memcpy(tmp_iv,iv,16);
aes_crypt_cbc( &ctx_de, AES_DECRYPT, length, (unsigned char*)tmp_iv, (const unsigned char*)input, (unsigned char*) output );
return;
}