-/* $FreeBSD: src/sys/crypto/blowfish/bf_enc.c,v 1.1.2.2 2001/07/03 11:01:28 ume Exp $ */
-/* $KAME: bf_enc.c,v 1.5 2000/09/18 21:21:19 itojun Exp $ */
+/* $FreeBSD: src/sys/crypto/blowfish/bf_enc.c,v 1.1.2.3 2002/03/26 10:12:23 ume Exp $ */
+/* $KAME: bf_enc.c,v 1.7 2002/02/27 01:33:59 itojun Exp $ */
/* crypto/bf/bf_enc.c */
-/* Copyright (C) 1995-1997 Eric Young (eay@mincom.oz.au)
+/* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
* All rights reserved.
*
* This package is an SSL implementation written
- * by Eric Young (eay@mincom.oz.au).
+ * by Eric Young (eay@cryptsoft.com).
* The implementation was written so as to conform with Netscapes SSL.
*
* This library is free for commercial and non-commercial use as long as
* apply to all code found in this distribution, be it the RC4, RSA,
* lhash, DES, etc., code; not just the SSL code. The SSL documentation
* included with this distribution is covered by the same copyright terms
- * except that the holder is Tim Hudson (tjh@mincom.oz.au).
+ * except that the holder is Tim Hudson (tjh@cryptsoft.com).
*
* Copyright remains Eric Young's, and as such any Copyright notices in
* the code are not to be removed.
* 3. All advertising materials mentioning features or use of this software
* must display the following acknowledgement:
* "This product includes cryptographic software written by
- * Eric Young (eay@mincom.oz.au)"
+ * Eric Young (eay@cryptsoft.com)"
* The word 'cryptographic' can be left out if the rouines from the library
* being used are not cryptographic related :-).
* 4. If you include any Windows specific code (or a derivative thereof) from
* the apps directory (application code) you must include an acknowledgement:
- * "This product includes software written by Tim Hudson (tjh@mincom.oz.au)"
+ * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
*
* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
/* XXX "data" is host endian */
void
-BF_encrypt(data, key, encrypt)
+BF_encrypt(data, key)
BF_LONG *data;
BF_KEY *key;
- int encrypt;
{
register BF_LONG l, r, *p, *s;
l = data[0];
r = data[1];
- if (encrypt) {
- l^=p[0];
- BF_ENC(r, l, s, p[ 1]);
- BF_ENC(l, r, s, p[ 2]);
- BF_ENC(r, l, s, p[ 3]);
- BF_ENC(l, r, s, p[ 4]);
- BF_ENC(r, l, s, p[ 5]);
- BF_ENC(l, r, s, p[ 6]);
- BF_ENC(r, l, s, p[ 7]);
- BF_ENC(l, r, s, p[ 8]);
- BF_ENC(r, l, s, p[ 9]);
- BF_ENC(l, r, s, p[10]);
- BF_ENC(r, l, s, p[11]);
- BF_ENC(l, r, s, p[12]);
- BF_ENC(r, l, s, p[13]);
- BF_ENC(l, r, s, p[14]);
- BF_ENC(r, l, s, p[15]);
- BF_ENC(l, r, s, p[16]);
+ l^=p[0];
+ BF_ENC(r, l, s, p[ 1]);
+ BF_ENC(l, r, s, p[ 2]);
+ BF_ENC(r, l, s, p[ 3]);
+ BF_ENC(l, r, s, p[ 4]);
+ BF_ENC(r, l, s, p[ 5]);
+ BF_ENC(l, r, s, p[ 6]);
+ BF_ENC(r, l, s, p[ 7]);
+ BF_ENC(l, r, s, p[ 8]);
+ BF_ENC(r, l, s, p[ 9]);
+ BF_ENC(l, r, s, p[10]);
+ BF_ENC(r, l, s, p[11]);
+ BF_ENC(l, r, s, p[12]);
+ BF_ENC(r, l, s, p[13]);
+ BF_ENC(l, r, s, p[14]);
+ BF_ENC(r, l, s, p[15]);
+ BF_ENC(l, r, s, p[16]);
#if BF_ROUNDS == 20
- BF_ENC(r, l, s, p[17]);
- BF_ENC(l, r, s, p[18]);
- BF_ENC(r, l, s, p[19]);
- BF_ENC(l, r, s, p[20]);
+ BF_ENC(r, l, s, p[17]);
+ BF_ENC(l, r, s, p[18]);
+ BF_ENC(r, l, s, p[19]);
+ BF_ENC(l, r, s, p[20]);
#endif
- r ^= p[BF_ROUNDS + 1];
- } else {
- l ^= p[BF_ROUNDS + 1];
+ r ^= p[BF_ROUNDS + 1];
+
+ data[1] = l & 0xffffffff;
+ data[0] = r & 0xffffffff;
+}
+
+/* XXX "data" is host endian */
+void
+BF_decrypt(data, key)
+ BF_LONG *data;
+ BF_KEY *key;
+{
+ register BF_LONG l, r, *p, *s;
+
+ p = key->P;
+ s= &key->S[0];
+ l = data[0];
+ r = data[1];
+
+ l ^= p[BF_ROUNDS + 1];
#if BF_ROUNDS == 20
- BF_ENC(r, l, s, p[20]);
- BF_ENC(l, r, s, p[19]);
- BF_ENC(r, l, s, p[18]);
- BF_ENC(l, r, s, p[17]);
+ BF_ENC(r, l, s, p[20]);
+ BF_ENC(l, r, s, p[19]);
+ BF_ENC(r, l, s, p[18]);
+ BF_ENC(l, r, s, p[17]);
#endif
- BF_ENC(r, l, s, p[16]);
- BF_ENC(l, r, s, p[15]);
- BF_ENC(r, l, s, p[14]);
- BF_ENC(l, r, s, p[13]);
- BF_ENC(r, l, s, p[12]);
- BF_ENC(l, r, s, p[11]);
- BF_ENC(r, l, s, p[10]);
- BF_ENC(l, r, s, p[ 9]);
- BF_ENC(r, l, s, p[ 8]);
- BF_ENC(l, r, s, p[ 7]);
- BF_ENC(r, l, s, p[ 6]);
- BF_ENC(l, r, s, p[ 5]);
- BF_ENC(r, l, s, p[ 4]);
- BF_ENC(l, r, s, p[ 3]);
- BF_ENC(r, l, s, p[ 2]);
- BF_ENC(l, r, s, p[ 1]);
- r ^= p[0];
- }
+ BF_ENC(r, l, s, p[16]);
+ BF_ENC(l, r, s, p[15]);
+ BF_ENC(r, l, s, p[14]);
+ BF_ENC(l, r, s, p[13]);
+ BF_ENC(r, l, s, p[12]);
+ BF_ENC(l, r, s, p[11]);
+ BF_ENC(r, l, s, p[10]);
+ BF_ENC(l, r, s, p[ 9]);
+ BF_ENC(r, l, s, p[ 8]);
+ BF_ENC(l, r, s, p[ 7]);
+ BF_ENC(r, l, s, p[ 6]);
+ BF_ENC(l, r, s, p[ 5]);
+ BF_ENC(r, l, s, p[ 4]);
+ BF_ENC(l, r, s, p[ 3]);
+ BF_ENC(r, l, s, p[ 2]);
+ BF_ENC(l, r, s, p[ 1]);
+ r ^= p[0];
+
data[1] = l & 0xffffffff;
data[0] = r & 0xffffffff;
}
projects / apple / xnu.git / blobdiff