xref: /openssl/crypto/cast/c_ecb.c (revision 33388b44)
1 /*
2  * Copyright 1995-2020 The OpenSSL Project Authors. All Rights Reserved.
3  *
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
8  */
9 
10 /*
11  * CAST low level APIs are deprecated for public use, but still ok for
12  * internal use.
13  */
14 #include "internal/deprecated.h"
15 
16 #include <openssl/cast.h>
17 #include "cast_local.h"
18 #include <openssl/opensslv.h>
19 
CAST_ecb_encrypt(const unsigned char * in,unsigned char * out,const CAST_KEY * ks,int enc)20 void CAST_ecb_encrypt(const unsigned char *in, unsigned char *out,
21                       const CAST_KEY *ks, int enc)
22 {
23     CAST_LONG l, d[2];
24 
25     n2l(in, l);
26     d[0] = l;
27     n2l(in, l);
28     d[1] = l;
29     if (enc)
30         CAST_encrypt(d, ks);
31     else
32         CAST_decrypt(d, ks);
33     l = d[0];
34     l2n(l, out);
35     l = d[1];
36     l2n(l, out);
37     l = d[0] = d[1] = 0;
38 }
39