/* Returned string must be freed when done with it! */
int encrypt_string(const char *key, const char *str, char *dest, int len)
{
BF_KEY bf_key;
if ( !key || !key[0] )
return 0;
BF_set_key(&bf_key, strlen(key), (const unsigned char *)key);
while( len > 0 ) {
const size_t blocksize = len < 8 ? len : BF_BLOCK;
unsigned char block[BF_BLOCK] = {0}; /* pad with zero */
uint32_t v;
size_t i;
memcpy(block, str, blocksize);
BF_ecb_encrypt(block, block, &bf_key, BF_ENCRYPT);
for(v = load32_be(block + 4), i = 0; i < 6; ++i) {
*dest++ = B64[v&0x3f];
v >>= 6;
}
for(v = load32_be(block + 0), i = 0; i < 6; ++i) {
*dest++ = B64[v&0x3f];
v >>= 6;
}
len -= blocksize;
str += blocksize;
}
*dest++ = 0;
return 1;
}
void
Hacl_Hash_Lib_LoadStore_uint32s_from_be_bytes(uint32_t *output, uint8_t *input, uint32_t len)
{
for (uint32_t i = (uint32_t )0; i < len; i = i + (uint32_t )1)
{
uint8_t *x0 = input + (uint32_t )4 * i;
uint32_t inputi = load32_be(x0);
output[i] = inputi;
}
}
