]>
git.ipfire.org Git - thirdparty/openssl.git/blob - crypto/rc2/rc2ofb64.c
097f8befe07d3852aba4c90ef6237d7e4ea20d4a
2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
11 * RC2 low level APIs are deprecated for public use, but still ok for internal
14 #include "internal/deprecated.h"
16 #include <openssl/rc2.h>
17 #include "rc2_local.h"
20 * The input and output encrypted as though 64bit ofb mode is being used.
21 * The extra state information to record how much of the 64bit block we have
22 * used is contained in *num;
24 void RC2_ofb64_encrypt(const unsigned char *in
, unsigned char *out
,
25 long length
, RC2_KEY
*schedule
, unsigned char *ivec
,
28 register unsigned long v0
, v1
, t
;
29 register int n
= *num
;
30 register long l
= length
;
37 iv
= (unsigned char *)ivec
;
47 RC2_encrypt((unsigned long *)ti
, schedule
);
55 *(out
++) = *(in
++) ^ d
[n
];
61 iv
= (unsigned char *)ivec
;
65 t
= v0
= v1
= ti
[0] = ti
[1] = 0;