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update cfb

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wangyu 2019-07-16 00:47:36 -04:00
parent f68c6e211d
commit 7636225414
4 changed files with 41 additions and 22 deletions
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15
encrypt.cpp
View File

@ -326,6 +326,11 @@ int cipher_aes128cfb_encrypt(const char *data,char *output,int &len,char * key)
if(first_time==0) key=0; if(first_time==0) key=0;
else first_time=0; else first_time=0;
} }
if(len>=16)
{
AES_ECB_encrypt_buffer(data,key,buf); //tmp solution, to fix a problem
}
AES_CFB_encrypt_buffer((unsigned char *)output,(unsigned char *)buf,len,(unsigned char *)key,(unsigned char *)zero_iv); AES_CFB_encrypt_buffer((unsigned char *)output,(unsigned char *)buf,len,(unsigned char *)key,(unsigned char *)zero_iv);
return 0; return 0;
@ -374,7 +379,15 @@ int cipher_aes128cfb_decrypt(const char *data,char *output,int &len,char * key)
if(first_time==0) key=0; if(first_time==0) key=0;
else first_time=0; else first_time=0;
} }
AES_CFB_decrypt_buffer((unsigned char *)output,(unsigned char *)data,len,(unsigned char *)key,(unsigned char *)zero_iv); char buf[buf_len];
memcpy(buf,data,len);//TODO inefficient code
if(len>=16)
{
AES_ECB_decrypt_buffer(data,key,buf);//tmp solution to fix a problem
}
AES_CFB_decrypt_buffer((unsigned char *)output,(unsigned char *)buf,len,(unsigned char *)key,(unsigned char *)zero_iv);
//if(de_padding(output,len,16)<0) return -1; //if(de_padding(output,len,16)<0) return -1;
return 0; return 0;
} }

5
lib/aes-common.h
View File

@ -7,9 +7,8 @@
#include <stdint.h> #include <stdint.h>
//not used void AES_ECB_encrypt_buffer(const uint8_t* input, const uint8_t* key, uint8_t *output);
//void AES_ECB_encrypt(const uint8_t* input, const uint8_t* key, uint8_t *output, const uint32_t length); void AES_ECB_decrypt_buffer(const uint8_t* input, const uint8_t* key, uint8_t *output);
//void AES_ECB_decrypt(const uint8_t* input, const uint8_t* key, uint8_t *output, const uint32_t length);
void AES_CBC_encrypt_buffer(uint8_t* output, uint8_t* input, uint32_t length, const uint8_t* key, const uint8_t* iv); void AES_CBC_encrypt_buffer(uint8_t* output, uint8_t* input, uint32_t length, const uint8_t* key, const uint8_t* iv);
void AES_CBC_decrypt_buffer(uint8_t* output, uint8_t* input, uint32_t length, const uint8_t* key, const uint8_t* iv); void AES_CBC_decrypt_buffer(uint8_t* output, uint8_t* input, uint32_t length, const uint8_t* key, const uint8_t* iv);

21
lib/aes_acc/aesacc.c
View File

@ -366,32 +366,25 @@ void AES_CBC_decrypt_buffer(uint8_t* output, uint8_t* input, uint32_t length, co
decrypt_cbc(rk, length, iv_tmp, input, output); decrypt_cbc(rk, length, iv_tmp, input, output);
} }
/*
void AES_ECB_encrypt(const uint8_t* input, const uint8_t* key, uint8_t* output, const uint32_t length) void AES_ECB_encrypt(const uint8_t* input, const uint8_t* key, uint8_t* output, const uint32_t length)
{ {
uint8_t rk[AES_RKSIZE]; static uint8_t rk[AES_RKSIZE];
if (key == NULL)
{
return;
}
aeshw_init(); aeshw_init();
setkey_enc(rk, key); if(key!=NULL)
setkey_enc(rk, key);
encrypt_ecb(AES_NR, rk, input, output); encrypt_ecb(AES_NR, rk, input, output);
} }
void AES_ECB_decrypt(const uint8_t* input, const uint8_t* key, uint8_t *output, const uint32_t length) void AES_ECB_decrypt(const uint8_t* input, const uint8_t* key, uint8_t *output, const uint32_t length)
{ {
uint8_t rk[AES_RKSIZE]; static uint8_t rk[AES_RKSIZE];
if (key == NULL)
{
return;
}
aeshw_init(); aeshw_init();
setkey_dec(rk, key); if(key!=NULL)
setkey_dec(rk, key);
decrypt_ecb(AES_NR, rk, input, output); decrypt_ecb(AES_NR, rk, input, output);
}*/ }
static void encrypt_cfb( uint8_t* rk, static void encrypt_cfb( uint8_t* rk,
uint32_t length,size_t *iv_off, uint32_t length,size_t *iv_off,

22
lib/aes_faster_c/wrapper.cpp
View File

@ -14,13 +14,27 @@
void AES_ECB_encrypt(const uint8_t* input, const uint8_t* key, uint8_t *output, const uint32_t length) void AES_ECB_encrypt(const uint8_t* input, const uint8_t* key, uint8_t *output, const uint32_t length)
{ {
printf("AES_ECB_encrypt not implemented\n"); static aes_context ctx;
exit(-1); if(key!=0)
{
aes_init( &ctx);
aes_setkey_enc(&ctx,key,AES_KEYSIZE);
}
int ret=aes_crypt_ecb( &ctx, AES_ENCRYPT, (const unsigned char*)input,(unsigned char*) output );
assert(ret==0);
return ;
} }
void AES_ECB_decrypt(const uint8_t* input, const uint8_t* key, uint8_t *output, const uint32_t length) void AES_ECB_decrypt(const uint8_t* input, const uint8_t* key, uint8_t *output, const uint32_t length)
{ {
printf("AES_ECB_encrypt not implemented\n"); static aes_context ctx;
exit(-1); if(key!=0)
{
aes_init( &ctx);
aes_setkey_dec(&ctx,key,AES_KEYSIZE);
}
int ret=aes_crypt_ecb( &ctx, AES_DECRYPT, (const unsigned char*)input,(unsigned char*) output );
assert(ret==0);
return ;
} }
void AES_CBC_encrypt_buffer(uint8_t* output, uint8_t* input, uint32_t length, const uint8_t* key, const uint8_t* iv) void AES_CBC_encrypt_buffer(uint8_t* output, uint8_t* input, uint32_t length, const uint8_t* key, const uint8_t* iv)