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git.ipfire.org Git - thirdparty/openssl.git/blob - crypto/rc5/rc5ofb64.c
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
10 #include <openssl/rc5.h>
14 * The input and output encrypted as though 64bit ofb mode is being used.
15 * The extra state information to record how much of the 64bit block we have
16 * used is contained in *num;
18 void RC5_32_ofb64_encrypt(const unsigned char *in
, unsigned char *out
,
19 long length
, RC5_32_KEY
*schedule
,
20 unsigned char *ivec
, int *num
)
22 register unsigned long v0
, v1
, t
;
23 register int n
= *num
;
24 register long l
= length
;
31 iv
= (unsigned char *)ivec
;
41 RC5_32_encrypt((unsigned long *)ti
, schedule
);
49 *(out
++) = *(in
++) ^ d
[n
];
55 iv
= (unsigned char *)ivec
;
59 t
= v0
= v1
= ti
[0] = ti
[1] = 0;