2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
4 * Licensed under the OpenSSL license (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 #ifndef HEADER_BF_LOCL_H
11 # define HEADER_BF_LOCL_H
12 # include <openssl/opensslconf.h>
14 /* NOTE - c is not incremented as per n2l */
15 # define n2ln(c,l1,l2,n) { \
19 case 8: l2 =((unsigned long)(*(--(c)))) ; \
20 case 7: l2|=((unsigned long)(*(--(c))))<< 8; \
21 case 6: l2|=((unsigned long)(*(--(c))))<<16; \
22 case 5: l2|=((unsigned long)(*(--(c))))<<24; \
23 case 4: l1 =((unsigned long)(*(--(c)))) ; \
24 case 3: l1|=((unsigned long)(*(--(c))))<< 8; \
25 case 2: l1|=((unsigned long)(*(--(c))))<<16; \
26 case 1: l1|=((unsigned long)(*(--(c))))<<24; \
30 /* NOTE - c is not incremented as per l2n */
31 # define l2nn(l1,l2,c,n) { \
34 case 8: *(--(c))=(unsigned char)(((l2) )&0xff); \
35 case 7: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \
36 case 6: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \
37 case 5: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \
38 case 4: *(--(c))=(unsigned char)(((l1) )&0xff); \
39 case 3: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \
40 case 2: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \
41 case 1: *(--(c))=(unsigned char)(((l1)>>24)&0xff); \
46 # define n2l(c,l) (l =((unsigned long)(*((c)++)))<<24L, \
47 l|=((unsigned long)(*((c)++)))<<16L, \
48 l|=((unsigned long)(*((c)++)))<< 8L, \
49 l|=((unsigned long)(*((c)++))))
52 # define l2n(l,c) (*((c)++)=(unsigned char)(((l)>>24L)&0xff), \
53 *((c)++)=(unsigned char)(((l)>>16L)&0xff), \
54 *((c)++)=(unsigned char)(((l)>> 8L)&0xff), \
55 *((c)++)=(unsigned char)(((l) )&0xff))
58 * This is actually a big endian algorithm, the most significant byte is used
62 # define BF_ENC(LL,R,S,P) ( \
64 LL^=((( S[ ((R>>24)&0xff)] + \
65 S[0x0100+((R>>16)&0xff)])^ \
66 S[0x0200+((R>> 8)&0xff)])+ \
67 S[0x0300+((R )&0xff)])&0xffffffffU \