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 * IDEA low level APIs are deprecated for public use, but still ok for internal
12 * use where we're using them to implement the higher level EVP interface, as is
15 #include "internal/deprecated.h"
17 #include <openssl/idea.h>
18 #include "idea_local.h"
21 * The input and output encrypted as though 64bit cfb mode is being used.
22 * The extra state information to record how much of the 64bit block we have
23 * used is contained in *num;
26 void IDEA_cfb64_encrypt(const unsigned char *in, unsigned char *out,
27 long length, IDEA_KEY_SCHEDULE *schedule,
28 unsigned char *ivec, int *num, int encrypt)
30 register unsigned long v0, v1, t;
31 register int n = *num;
32 register long l = length;
34 unsigned char *iv, c, cc;
36 iv = (unsigned char *)ivec;
44 IDEA_encrypt((unsigned long *)ti, schedule);
45 iv = (unsigned char *)ivec;
50 iv = (unsigned char *)ivec;
64 IDEA_encrypt((unsigned long *)ti, schedule);
65 iv = (unsigned char *)ivec;
70 iv = (unsigned char *)ivec;
79 v0 = v1 = ti[0] = ti[1] = t = c = cc = 0;