| 123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384 |
- /*
- * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
- *
- * Licensed under the OpenSSL license (the "License"). You may not use
- * this file except in compliance with the License. You can obtain a copy
- * in the file LICENSE in the source distribution or at
- * https://www.openssl.org/source/license.html
- */
- #ifndef OSSL_CRYPTO_BF_LOCAL_H
- # define OSSL_CRYPTO_BF_LOCAL_H
- # include <openssl/opensslconf.h>
- /* NOTE - c is not incremented as per n2l */
- # define n2ln(c,l1,l2,n) { \
- c+=n; \
- l1=l2=0; \
- switch (n) { \
- case 8: l2 =((unsigned long)(*(--(c)))) ; \
- /* fall thru */ \
- case 7: l2|=((unsigned long)(*(--(c))))<< 8; \
- /* fall thru */ \
- case 6: l2|=((unsigned long)(*(--(c))))<<16; \
- /* fall thru */ \
- case 5: l2|=((unsigned long)(*(--(c))))<<24; \
- /* fall thru */ \
- case 4: l1 =((unsigned long)(*(--(c)))) ; \
- /* fall thru */ \
- case 3: l1|=((unsigned long)(*(--(c))))<< 8; \
- /* fall thru */ \
- case 2: l1|=((unsigned long)(*(--(c))))<<16; \
- /* fall thru */ \
- case 1: l1|=((unsigned long)(*(--(c))))<<24; \
- } \
- }
- /* NOTE - c is not incremented as per l2n */
- # define l2nn(l1,l2,c,n) { \
- c+=n; \
- switch (n) { \
- case 8: *(--(c))=(unsigned char)(((l2) )&0xff); \
- /* fall thru */ \
- case 7: *(--(c))=(unsigned char)(((l2)>> 8)&0xff); \
- /* fall thru */ \
- case 6: *(--(c))=(unsigned char)(((l2)>>16)&0xff); \
- /* fall thru */ \
- case 5: *(--(c))=(unsigned char)(((l2)>>24)&0xff); \
- /* fall thru */ \
- case 4: *(--(c))=(unsigned char)(((l1) )&0xff); \
- /* fall thru */ \
- case 3: *(--(c))=(unsigned char)(((l1)>> 8)&0xff); \
- /* fall thru */ \
- case 2: *(--(c))=(unsigned char)(((l1)>>16)&0xff); \
- /* fall thru */ \
- case 1: *(--(c))=(unsigned char)(((l1)>>24)&0xff); \
- } \
- }
- # undef n2l
- # define n2l(c,l) (l =((unsigned long)(*((c)++)))<<24L, \
- l|=((unsigned long)(*((c)++)))<<16L, \
- l|=((unsigned long)(*((c)++)))<< 8L, \
- l|=((unsigned long)(*((c)++))))
- # undef l2n
- # define l2n(l,c) (*((c)++)=(unsigned char)(((l)>>24L)&0xff), \
- *((c)++)=(unsigned char)(((l)>>16L)&0xff), \
- *((c)++)=(unsigned char)(((l)>> 8L)&0xff), \
- *((c)++)=(unsigned char)(((l) )&0xff))
- /*
- * This is actually a big endian algorithm, the most significant byte is used
- * to lookup array 0
- */
- # define BF_ENC(LL,R,S,P) ( \
- LL^=P, \
- LL^=((( S[ ((R>>24)&0xff)] + \
- S[0x0100+((R>>16)&0xff)])^ \
- S[0x0200+((R>> 8)&0xff)])+ \
- S[0x0300+((R )&0xff)])&0xffffffffU \
- )
- #endif
|
