| des_setkey.c (55009) | des_setkey.c (62587) |
|---|---|
| 1/* $FreeBSD: head/sys/crypto/des/des_setkey.c 62587 2000-07-04 16:35:15Z itojun $ */ 2/* $KAME: des_setkey.c,v 1.3 2000/03/27 04:36:33 sumikawa Exp $ */ 3 |
|
| 1/* crypto/des/set_key.c */ 2/* Copyright (C) 1995-1996 Eric Young (eay@mincom.oz.au) 3 * All rights reserved. 4 * 5 * This file is part of an SSL implementation written 6 * by Eric Young (eay@mincom.oz.au). 7 * The implementation was written so as to conform with Netscapes SSL 8 * specification. This library and applications are --- 29 unchanged lines hidden (view full) --- 38 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 39 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 40 * SUCH DAMAGE. 41 * 42 * The licence and distribution terms for any publically available version or 43 * derivative of this code cannot be changed. i.e. this code cannot simply be 44 * copied and put under another distribution licence 45 * [including the GNU Public Licence.] | 4/* crypto/des/set_key.c */ 5/* Copyright (C) 1995-1996 Eric Young (eay@mincom.oz.au) 6 * All rights reserved. 7 * 8 * This file is part of an SSL implementation written 9 * by Eric Young (eay@mincom.oz.au). 10 * The implementation was written so as to conform with Netscapes SSL 11 * specification. This library and applications are --- 29 unchanged lines hidden (view full) --- 41 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 42 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 43 * SUCH DAMAGE. 44 * 45 * The licence and distribution terms for any publically available version or 46 * derivative of this code cannot be changed. i.e. this code cannot simply be 47 * copied and put under another distribution licence 48 * [including the GNU Public Licence.] |
| 46 * 47 * $FreeBSD: head/sys/crypto/des/des_setkey.c 55009 1999-12-22 19:13:38Z shin $ | |
| 48 */ 49 50/* set_key.c v 1.4 eay 24/9/91 51 * 1.4 Speed up by 400% :-) 52 * 1.3 added register declarations. 53 * 1.2 unrolled make_key_sched a bit more 54 * 1.1 added norm_expand_bits 55 * 1.0 First working version --- 36 unchanged lines hidden (view full) --- 92 * %A D.W. Davies 93 * %A W.L. Price 94 * %T Security for Computer Networks 95 * %I John Wiley & Sons 96 * %D 1984 97 * Many thanks to smb@ulysses.att.com (Steven Bellovin) for the reference 98 * (and actual cblock values). 99 */ | 49 */ 50 51/* set_key.c v 1.4 eay 24/9/91 52 * 1.4 Speed up by 400% :-) 53 * 1.3 added register declarations. 54 * 1.2 unrolled make_key_sched a bit more 55 * 1.1 added norm_expand_bits 56 * 1.0 First working version --- 36 unchanged lines hidden (view full) --- 93 * %A D.W. Davies 94 * %A W.L. Price 95 * %T Security for Computer Networks 96 * %I John Wiley & Sons 97 * %D 1984 98 * Many thanks to smb@ulysses.att.com (Steven Bellovin) for the reference 99 * (and actual cblock values). 100 */ |
| 100#define NUM_WEAK_KEY 16 | 101#define NUM_WEAK_KEY 16 |
| 101static des_cblock weak_keys[NUM_WEAK_KEY]={ 102 /* weak keys */ 103 {0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01}, 104 {0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE}, 105 {0x1F,0x1F,0x1F,0x1F,0x1F,0x1F,0x1F,0x1F}, 106 {0xE0,0xE0,0xE0,0xE0,0xE0,0xE0,0xE0,0xE0}, 107 /* semi-weak keys */ 108 {0x01,0xFE,0x01,0xFE,0x01,0xFE,0x01,0xFE}, --- 28 unchanged lines hidden (view full) --- 137 138/* NOW DEFINED IN des_local.h 139 * See ecb_encrypt.c for a pseudo description of these macros. 140 * #define PERM_OP(a,b,t,n,m) ((t)=((((a)>>(n))^(b))&(m)),\ 141 * (b)^=(t),\ 142 * (a)=((a)^((t)<<(n)))) 143 */ 144 | 102static des_cblock weak_keys[NUM_WEAK_KEY]={ 103 /* weak keys */ 104 {0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01}, 105 {0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE}, 106 {0x1F,0x1F,0x1F,0x1F,0x1F,0x1F,0x1F,0x1F}, 107 {0xE0,0xE0,0xE0,0xE0,0xE0,0xE0,0xE0,0xE0}, 108 /* semi-weak keys */ 109 {0x01,0xFE,0x01,0xFE,0x01,0xFE,0x01,0xFE}, --- 28 unchanged lines hidden (view full) --- 138 139/* NOW DEFINED IN des_local.h 140 * See ecb_encrypt.c for a pseudo description of these macros. 141 * #define PERM_OP(a,b,t,n,m) ((t)=((((a)>>(n))^(b))&(m)),\ 142 * (b)^=(t),\ 143 * (a)=((a)^((t)<<(n)))) 144 */ 145 |
| 145#define HPERM_OP(a,t,n,m) ((t)=((((a)<<(16-(n)))^(a))&(m)),\ | 146#define HPERM_OP(a,t,n,m) ((t)=((((a)<<(16-(n)))^(a))&(m)),\ |
| 146 (a)=(a)^(t)^(t>>(16-(n)))) 147 148/* return 0 if key parity is odd (correct), 149 * return -1 if key parity error, 150 * return -2 if illegal weak key. 151 */ 152int des_set_key(key, schedule) 153des_cblock (*key); --- 64 unchanged lines hidden (view full) --- 218 t= des_skb[4][ (d )&0x3f ]| 219 des_skb[5][((d>> 7L)&0x03)|((d>> 8L)&0x3c)]| 220 des_skb[6][ (d>>15L)&0x3f ]| 221 des_skb[7][((d>>21L)&0x0f)|((d>>22L)&0x30)]; 222 223 /* table contained 0213 4657 */ 224 *(k++)=((t<<16L)|(s&0x0000ffffL))&0xffffffffL; 225 s= ((s>>16L)|(t&0xffff0000L)); | 147 (a)=(a)^(t)^(t>>(16-(n)))) 148 149/* return 0 if key parity is odd (correct), 150 * return -1 if key parity error, 151 * return -2 if illegal weak key. 152 */ 153int des_set_key(key, schedule) 154des_cblock (*key); --- 64 unchanged lines hidden (view full) --- 219 t= des_skb[4][ (d )&0x3f ]| 220 des_skb[5][((d>> 7L)&0x03)|((d>> 8L)&0x3c)]| 221 des_skb[6][ (d>>15L)&0x3f ]| 222 des_skb[7][((d>>21L)&0x0f)|((d>>22L)&0x30)]; 223 224 /* table contained 0213 4657 */ 225 *(k++)=((t<<16L)|(s&0x0000ffffL))&0xffffffffL; 226 s= ((s>>16L)|(t&0xffff0000L)); |
| 226 | 227 |
| 227 s=(s<<4L)|(s>>28L); 228 *(k++)=s&0xffffffffL; 229 } 230 return(0); 231 } 232 233int des_key_sched(key, schedule) 234des_cblock (*key); 235des_key_schedule schedule; 236 { 237 return(des_set_key(key,schedule)); 238 } | 228 s=(s<<4L)|(s>>28L); 229 *(k++)=s&0xffffffffL; 230 } 231 return(0); 232 } 233 234int des_key_sched(key, schedule) 235des_cblock (*key); 236des_key_schedule schedule; 237 { 238 return(des_set_key(key,schedule)); 239 } |