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sync ca4a5d3

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wangyu
2020-07-14 11:46:02 -04:00
parent 5cc304a261
commit e95ee70351
4 changed files with 35 additions and 5 deletions
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30
encrypt.cpp
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@@ -297,6 +297,28 @@ int de_padding(const char *data ,int &data_len,int padding_num)
}
return 0;
}
void aes_ecb_encrypt(const char *data,char *output)
{
static int first_time=1;
char *key=(char*)cipher_key_encrypt;
if(aes_key_optimize)
{
if(first_time==0) key=0;
else first_time=0;
}
AES_ECB_encrypt_buffer((uint8_t*)data,(uint8_t*)key,(uint8_t*)output);
}
void aes_ecb_decrypt(const char *data,char *output)
{
static int first_time=1;
char *key=(char*)cipher_key_decrypt;
if(aes_key_optimize)
{
if(first_time==0) key=0;
else first_time=0;
}
AES_ECB_decrypt_buffer((uint8_t*)data,(uint8_t*)key,(uint8_t*)output);
}
int cipher_aes128cbc_encrypt(const char *data,char *output,int &len,char * key)
{
static int first_time=1;
@@ -326,6 +348,7 @@ int cipher_aes128cfb_encrypt(const char *data,char *output,int &len,char * key)
if(first_time==0) key=0;
else first_time=0;
}
aes_ecb_encrypt(data,buf); //encrypt the first block
AES_CFB_encrypt_buffer((unsigned char *)output,(unsigned char *)buf,len,(unsigned char *)key,(unsigned char *)zero_iv);
return 0;
@@ -374,7 +397,12 @@ int cipher_aes128cfb_decrypt(const char *data,char *output,int &len,char * key)
if(first_time==0) key=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
aes_ecb_decrypt(data,buf); //decrypt the first block
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;
return 0;
}