int _mcrypt( CTR_BUFFER* buf,void *plaintext, int len, int blocksize, void* akey, void (*func)(void*,void*), void (*func2)(void*,void*))
{ /* plaintext can be any size */
byte *plain;
word32 *fplain = plaintext;
int i, j=0;
int modlen;
plain = plaintext;
for (j = 0; j < len / blocksize; j++) {
xor_stuff( buf, akey, func, plain, blocksize, blocksize);
plain += blocksize;
/* Put the new register */
}
modlen = len % blocksize;
if (modlen > 0) {
/* This is only usefull if encrypting the
* final block. Otherwise you'll not be
* able to decrypt it.
*/
xor_stuff( buf, akey, func, plain, blocksize, modlen);
}
return 0;
}
GF_Err _mcrypt(void * buf,void *plaintext, int len, int blocksize, void* akey, void (*func)(void*,void*), void (*func2)(void*,void*))
{ /* plaintext can be any size */
u8 *plain;
int dlen, j=0;
int modlen;
dlen = len / blocksize;
plain = (u8 *)plaintext;
for (j = 0; j < dlen; j++) {
xor_stuff((CTR_BUFFER*) buf, akey, func, plain, blocksize, blocksize);
plain += blocksize;
/* Put the new register */
}
modlen = len % blocksize;
if (modlen > 0) {
/* This is only usefull if encrypting the
* final block. Otherwise you'll not be
* able to decrypt it.
*/
xor_stuff( (CTR_BUFFER*)buf, akey, func, plain, blocksize, modlen);
}
return GF_OK;
}
static GF_Err _mcrypt( nOFB_BUFFER* buf,void *plaintext, int len, int blocksize, void* akey, void (*func)(void*,void*), void (*func2)(void*,void*))
{ /* plaintext is n*blocksize bytes (nbit cfb) */
u8* plain;
int dlen, j=0;
void (*_mcrypt_block_encrypt) (void *, void *);
int modlen;
_mcrypt_block_encrypt = func;
dlen = len / blocksize;
plain = plaintext;
for (j = 0; j < dlen; j++) {
xor_stuff( buf, akey, func, plain, blocksize, blocksize);
plain += blocksize;
}
modlen = len % blocksize;
if (modlen > 0) {
xor_stuff( buf, akey, func, plain, blocksize, modlen);
}
return GF_OK;
}
