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"
20 void IDEA_cbc_encrypt(const unsigned char *in, unsigned char *out,
21 long length, IDEA_KEY_SCHEDULE *ks, unsigned char *iv,
24 register unsigned long tin0, tin1;
25 register unsigned long tout0, tout1, xor0, xor1;
26 register long l = length;
33 for (l -= 8; l >= 0; l -= 8) {
40 IDEA_encrypt(tin, ks);
47 n2ln(in, tin0, tin1, l + 8);
52 IDEA_encrypt(tin, ks);
64 for (l -= 8; l >= 0; l -= 8) {
69 IDEA_encrypt(tin, ks);
70 tout0 = tin[0] ^ xor0;
71 tout1 = tin[1] ^ xor1;
82 IDEA_encrypt(tin, ks);
83 tout0 = tin[0] ^ xor0;
84 tout1 = tin[1] ^ xor1;
85 l2nn(tout0, tout1, out, l + 8);
92 tin0 = tin1 = tout0 = tout1 = xor0 = xor1 = 0;
96 void IDEA_encrypt(unsigned long *d, IDEA_KEY_SCHEDULE *key)
99 register unsigned long x1, x2, x3, x4, t0, t1, ul;
106 p = &(key->data[0][0]);
118 idea_mul(x1, x1, *p, ul);
125 idea_mul(x4, x4, *p, ul);
127 d[0] = (t0 & 0xffff) | ((x1 & 0xffff) << 16);
128 d[1] = (x4 & 0xffff) | ((t1 & 0xffff) << 16);