* 1.0 First working version
*/
#include "des_locl.h"
-#include "podd.h"
-#include "sk.h"
-#ifndef NOPROTO
-static int check_parity(des_cblock (*key));
-#else
-static int check_parity();
-#endif
+OPENSSL_IMPLEMENT_GLOBAL(int,DES_check_key,0) /* defaults to false */
-int des_check_key=0;
+static const unsigned char odd_parity[256]={
+ 1, 1, 2, 2, 4, 4, 7, 7, 8, 8, 11, 11, 13, 13, 14, 14,
+ 16, 16, 19, 19, 21, 21, 22, 22, 25, 25, 26, 26, 28, 28, 31, 31,
+ 32, 32, 35, 35, 37, 37, 38, 38, 41, 41, 42, 42, 44, 44, 47, 47,
+ 49, 49, 50, 50, 52, 52, 55, 55, 56, 56, 59, 59, 61, 61, 62, 62,
+ 64, 64, 67, 67, 69, 69, 70, 70, 73, 73, 74, 74, 76, 76, 79, 79,
+ 81, 81, 82, 82, 84, 84, 87, 87, 88, 88, 91, 91, 93, 93, 94, 94,
+ 97, 97, 98, 98,100,100,103,103,104,104,107,107,109,109,110,110,
+112,112,115,115,117,117,118,118,121,121,122,122,124,124,127,127,
+128,128,131,131,133,133,134,134,137,137,138,138,140,140,143,143,
+145,145,146,146,148,148,151,151,152,152,155,155,157,157,158,158,
+161,161,162,162,164,164,167,167,168,168,171,171,173,173,174,174,
+176,176,179,179,181,181,182,182,185,185,186,186,188,188,191,191,
+193,193,194,194,196,196,199,199,200,200,203,203,205,205,206,206,
+208,208,211,211,213,213,214,214,217,217,218,218,220,220,223,223,
+224,224,227,227,229,229,230,230,233,233,234,234,236,236,239,239,
+241,241,242,242,244,244,247,247,248,248,251,251,253,253,254,254};
-void des_set_odd_parity(key)
-des_cblock (*key);
+void DES_set_odd_parity(DES_cblock *key)
{
- int i;
+ unsigned int i;
for (i=0; i<DES_KEY_SZ; i++)
(*key)[i]=odd_parity[(*key)[i]];
}
-static int check_parity(key)
-des_cblock (*key);
+int DES_check_key_parity(const_DES_cblock *key)
{
- int i;
+ unsigned int i;
for (i=0; i<DES_KEY_SZ; i++)
{
* (and actual cblock values).
*/
#define NUM_WEAK_KEY 16
-static des_cblock weak_keys[NUM_WEAK_KEY]={
+static const DES_cblock weak_keys[NUM_WEAK_KEY]={
/* weak keys */
{0x01,0x01,0x01,0x01,0x01,0x01,0x01,0x01},
{0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE,0xFE},
- {0x1F,0x1F,0x1F,0x1F,0x1F,0x1F,0x1F,0x1F},
- {0xE0,0xE0,0xE0,0xE0,0xE0,0xE0,0xE0,0xE0},
+ {0x1F,0x1F,0x1F,0x1F,0x0E,0x0E,0x0E,0x0E},
+ {0xE0,0xE0,0xE0,0xE0,0xF1,0xF1,0xF1,0xF1},
/* semi-weak keys */
{0x01,0xFE,0x01,0xFE,0x01,0xFE,0x01,0xFE},
{0xFE,0x01,0xFE,0x01,0xFE,0x01,0xFE,0x01},
{0xE0,0xFE,0xE0,0xFE,0xF1,0xFE,0xF1,0xFE},
{0xFE,0xE0,0xFE,0xE0,0xFE,0xF1,0xFE,0xF1}};
-int des_is_weak_key(key)
-des_cblock (*key);
+int DES_is_weak_key(const_DES_cblock *key)
{
int i;
for (i=0; i<NUM_WEAK_KEY; i++)
- /* Added == 0 to comparision, I obviously don't run
+ /* Added == 0 to comparison, I obviously don't run
* this section very often :-(, thanks to
* engineering@MorningStar.Com for the fix
* eay 93/06/29
* Another problem, I was comparing only the first 4
* bytes, 97/03/18 */
- if (memcmp(weak_keys[i],key,sizeof(des_cblock)) == 0) return(1);
+ if (memcmp(weak_keys[i],key,sizeof(DES_cblock)) == 0) return(1);
return(0);
}
#define HPERM_OP(a,t,n,m) ((t)=((((a)<<(16-(n)))^(a))&(m)),\
(a)=(a)^(t)^(t>>(16-(n))))
+static const DES_LONG des_skb[8][64]={
+ {
+ /* for C bits (numbered as per FIPS 46) 1 2 3 4 5 6 */
+ 0x00000000L,0x00000010L,0x20000000L,0x20000010L,
+ 0x00010000L,0x00010010L,0x20010000L,0x20010010L,
+ 0x00000800L,0x00000810L,0x20000800L,0x20000810L,
+ 0x00010800L,0x00010810L,0x20010800L,0x20010810L,
+ 0x00000020L,0x00000030L,0x20000020L,0x20000030L,
+ 0x00010020L,0x00010030L,0x20010020L,0x20010030L,
+ 0x00000820L,0x00000830L,0x20000820L,0x20000830L,
+ 0x00010820L,0x00010830L,0x20010820L,0x20010830L,
+ 0x00080000L,0x00080010L,0x20080000L,0x20080010L,
+ 0x00090000L,0x00090010L,0x20090000L,0x20090010L,
+ 0x00080800L,0x00080810L,0x20080800L,0x20080810L,
+ 0x00090800L,0x00090810L,0x20090800L,0x20090810L,
+ 0x00080020L,0x00080030L,0x20080020L,0x20080030L,
+ 0x00090020L,0x00090030L,0x20090020L,0x20090030L,
+ 0x00080820L,0x00080830L,0x20080820L,0x20080830L,
+ 0x00090820L,0x00090830L,0x20090820L,0x20090830L,
+ },{
+ /* for C bits (numbered as per FIPS 46) 7 8 10 11 12 13 */
+ 0x00000000L,0x02000000L,0x00002000L,0x02002000L,
+ 0x00200000L,0x02200000L,0x00202000L,0x02202000L,
+ 0x00000004L,0x02000004L,0x00002004L,0x02002004L,
+ 0x00200004L,0x02200004L,0x00202004L,0x02202004L,
+ 0x00000400L,0x02000400L,0x00002400L,0x02002400L,
+ 0x00200400L,0x02200400L,0x00202400L,0x02202400L,
+ 0x00000404L,0x02000404L,0x00002404L,0x02002404L,
+ 0x00200404L,0x02200404L,0x00202404L,0x02202404L,
+ 0x10000000L,0x12000000L,0x10002000L,0x12002000L,
+ 0x10200000L,0x12200000L,0x10202000L,0x12202000L,
+ 0x10000004L,0x12000004L,0x10002004L,0x12002004L,
+ 0x10200004L,0x12200004L,0x10202004L,0x12202004L,
+ 0x10000400L,0x12000400L,0x10002400L,0x12002400L,
+ 0x10200400L,0x12200400L,0x10202400L,0x12202400L,
+ 0x10000404L,0x12000404L,0x10002404L,0x12002404L,
+ 0x10200404L,0x12200404L,0x10202404L,0x12202404L,
+ },{
+ /* for C bits (numbered as per FIPS 46) 14 15 16 17 19 20 */
+ 0x00000000L,0x00000001L,0x00040000L,0x00040001L,
+ 0x01000000L,0x01000001L,0x01040000L,0x01040001L,
+ 0x00000002L,0x00000003L,0x00040002L,0x00040003L,
+ 0x01000002L,0x01000003L,0x01040002L,0x01040003L,
+ 0x00000200L,0x00000201L,0x00040200L,0x00040201L,
+ 0x01000200L,0x01000201L,0x01040200L,0x01040201L,
+ 0x00000202L,0x00000203L,0x00040202L,0x00040203L,
+ 0x01000202L,0x01000203L,0x01040202L,0x01040203L,
+ 0x08000000L,0x08000001L,0x08040000L,0x08040001L,
+ 0x09000000L,0x09000001L,0x09040000L,0x09040001L,
+ 0x08000002L,0x08000003L,0x08040002L,0x08040003L,
+ 0x09000002L,0x09000003L,0x09040002L,0x09040003L,
+ 0x08000200L,0x08000201L,0x08040200L,0x08040201L,
+ 0x09000200L,0x09000201L,0x09040200L,0x09040201L,
+ 0x08000202L,0x08000203L,0x08040202L,0x08040203L,
+ 0x09000202L,0x09000203L,0x09040202L,0x09040203L,
+ },{
+ /* for C bits (numbered as per FIPS 46) 21 23 24 26 27 28 */
+ 0x00000000L,0x00100000L,0x00000100L,0x00100100L,
+ 0x00000008L,0x00100008L,0x00000108L,0x00100108L,
+ 0x00001000L,0x00101000L,0x00001100L,0x00101100L,
+ 0x00001008L,0x00101008L,0x00001108L,0x00101108L,
+ 0x04000000L,0x04100000L,0x04000100L,0x04100100L,
+ 0x04000008L,0x04100008L,0x04000108L,0x04100108L,
+ 0x04001000L,0x04101000L,0x04001100L,0x04101100L,
+ 0x04001008L,0x04101008L,0x04001108L,0x04101108L,
+ 0x00020000L,0x00120000L,0x00020100L,0x00120100L,
+ 0x00020008L,0x00120008L,0x00020108L,0x00120108L,
+ 0x00021000L,0x00121000L,0x00021100L,0x00121100L,
+ 0x00021008L,0x00121008L,0x00021108L,0x00121108L,
+ 0x04020000L,0x04120000L,0x04020100L,0x04120100L,
+ 0x04020008L,0x04120008L,0x04020108L,0x04120108L,
+ 0x04021000L,0x04121000L,0x04021100L,0x04121100L,
+ 0x04021008L,0x04121008L,0x04021108L,0x04121108L,
+ },{
+ /* for D bits (numbered as per FIPS 46) 1 2 3 4 5 6 */
+ 0x00000000L,0x10000000L,0x00010000L,0x10010000L,
+ 0x00000004L,0x10000004L,0x00010004L,0x10010004L,
+ 0x20000000L,0x30000000L,0x20010000L,0x30010000L,
+ 0x20000004L,0x30000004L,0x20010004L,0x30010004L,
+ 0x00100000L,0x10100000L,0x00110000L,0x10110000L,
+ 0x00100004L,0x10100004L,0x00110004L,0x10110004L,
+ 0x20100000L,0x30100000L,0x20110000L,0x30110000L,
+ 0x20100004L,0x30100004L,0x20110004L,0x30110004L,
+ 0x00001000L,0x10001000L,0x00011000L,0x10011000L,
+ 0x00001004L,0x10001004L,0x00011004L,0x10011004L,
+ 0x20001000L,0x30001000L,0x20011000L,0x30011000L,
+ 0x20001004L,0x30001004L,0x20011004L,0x30011004L,
+ 0x00101000L,0x10101000L,0x00111000L,0x10111000L,
+ 0x00101004L,0x10101004L,0x00111004L,0x10111004L,
+ 0x20101000L,0x30101000L,0x20111000L,0x30111000L,
+ 0x20101004L,0x30101004L,0x20111004L,0x30111004L,
+ },{
+ /* for D bits (numbered as per FIPS 46) 8 9 11 12 13 14 */
+ 0x00000000L,0x08000000L,0x00000008L,0x08000008L,
+ 0x00000400L,0x08000400L,0x00000408L,0x08000408L,
+ 0x00020000L,0x08020000L,0x00020008L,0x08020008L,
+ 0x00020400L,0x08020400L,0x00020408L,0x08020408L,
+ 0x00000001L,0x08000001L,0x00000009L,0x08000009L,
+ 0x00000401L,0x08000401L,0x00000409L,0x08000409L,
+ 0x00020001L,0x08020001L,0x00020009L,0x08020009L,
+ 0x00020401L,0x08020401L,0x00020409L,0x08020409L,
+ 0x02000000L,0x0A000000L,0x02000008L,0x0A000008L,
+ 0x02000400L,0x0A000400L,0x02000408L,0x0A000408L,
+ 0x02020000L,0x0A020000L,0x02020008L,0x0A020008L,
+ 0x02020400L,0x0A020400L,0x02020408L,0x0A020408L,
+ 0x02000001L,0x0A000001L,0x02000009L,0x0A000009L,
+ 0x02000401L,0x0A000401L,0x02000409L,0x0A000409L,
+ 0x02020001L,0x0A020001L,0x02020009L,0x0A020009L,
+ 0x02020401L,0x0A020401L,0x02020409L,0x0A020409L,
+ },{
+ /* for D bits (numbered as per FIPS 46) 16 17 18 19 20 21 */
+ 0x00000000L,0x00000100L,0x00080000L,0x00080100L,
+ 0x01000000L,0x01000100L,0x01080000L,0x01080100L,
+ 0x00000010L,0x00000110L,0x00080010L,0x00080110L,
+ 0x01000010L,0x01000110L,0x01080010L,0x01080110L,
+ 0x00200000L,0x00200100L,0x00280000L,0x00280100L,
+ 0x01200000L,0x01200100L,0x01280000L,0x01280100L,
+ 0x00200010L,0x00200110L,0x00280010L,0x00280110L,
+ 0x01200010L,0x01200110L,0x01280010L,0x01280110L,
+ 0x00000200L,0x00000300L,0x00080200L,0x00080300L,
+ 0x01000200L,0x01000300L,0x01080200L,0x01080300L,
+ 0x00000210L,0x00000310L,0x00080210L,0x00080310L,
+ 0x01000210L,0x01000310L,0x01080210L,0x01080310L,
+ 0x00200200L,0x00200300L,0x00280200L,0x00280300L,
+ 0x01200200L,0x01200300L,0x01280200L,0x01280300L,
+ 0x00200210L,0x00200310L,0x00280210L,0x00280310L,
+ 0x01200210L,0x01200310L,0x01280210L,0x01280310L,
+ },{
+ /* for D bits (numbered as per FIPS 46) 22 23 24 25 27 28 */
+ 0x00000000L,0x04000000L,0x00040000L,0x04040000L,
+ 0x00000002L,0x04000002L,0x00040002L,0x04040002L,
+ 0x00002000L,0x04002000L,0x00042000L,0x04042000L,
+ 0x00002002L,0x04002002L,0x00042002L,0x04042002L,
+ 0x00000020L,0x04000020L,0x00040020L,0x04040020L,
+ 0x00000022L,0x04000022L,0x00040022L,0x04040022L,
+ 0x00002020L,0x04002020L,0x00042020L,0x04042020L,
+ 0x00002022L,0x04002022L,0x00042022L,0x04042022L,
+ 0x00000800L,0x04000800L,0x00040800L,0x04040800L,
+ 0x00000802L,0x04000802L,0x00040802L,0x04040802L,
+ 0x00002800L,0x04002800L,0x00042800L,0x04042800L,
+ 0x00002802L,0x04002802L,0x00042802L,0x04042802L,
+ 0x00000820L,0x04000820L,0x00040820L,0x04040820L,
+ 0x00000822L,0x04000822L,0x00040822L,0x04040822L,
+ 0x00002820L,0x04002820L,0x00042820L,0x04042820L,
+ 0x00002822L,0x04002822L,0x00042822L,0x04042822L,
+ }};
+
+int DES_set_key(const_DES_cblock *key, DES_key_schedule *schedule)
+ {
+ if (DES_check_key)
+ {
+ return DES_set_key_checked(key, schedule);
+ }
+ else
+ {
+ DES_set_key_unchecked(key, schedule);
+ return 0;
+ }
+ }
+
/* return 0 if key parity is odd (correct),
* return -1 if key parity error,
* return -2 if illegal weak key.
*/
-int des_set_key(key, schedule)
-des_cblock (*key);
-des_key_schedule schedule;
+int DES_set_key_checked(const_DES_cblock *key, DES_key_schedule *schedule)
+ {
+ if (!DES_check_key_parity(key))
+ return(-1);
+ if (DES_is_weak_key(key))
+ return(-2);
+ DES_set_key_unchecked(key, schedule);
+ return 0;
+ }
+
+void DES_set_key_unchecked(const_DES_cblock *key, DES_key_schedule *schedule)
{
static int shifts2[16]={0,0,1,1,1,1,1,1,0,1,1,1,1,1,1,0};
register DES_LONG c,d,t,s,t2;
- register unsigned char *in;
+ register const unsigned char *in;
register DES_LONG *k;
register int i;
- if (des_check_key)
- {
- if (!check_parity(key))
- return(-1);
-
- if (des_is_weak_key(key))
- return(-2);
- }
-
- k=(DES_LONG *)schedule;
- in=(unsigned char *)key;
+#ifdef OPENBSD_DEV_CRYPTO
+ memcpy(schedule->key,key,sizeof schedule->key);
+ schedule->session=NULL;
+#endif
+ k = &schedule->ks->deslong[0];
+ in = &(*key)[0];
c2l(in,c);
c2l(in,d);
- /* do PC1 in 60 simple operations */
-/* PERM_OP(d,c,t,4,0x0f0f0f0fL);
- HPERM_OP(c,t,-2, 0xcccc0000L);
- HPERM_OP(c,t,-1, 0xaaaa0000L);
- HPERM_OP(c,t, 8, 0x00ff0000L);
- HPERM_OP(c,t,-1, 0xaaaa0000L);
- HPERM_OP(d,t,-8, 0xff000000L);
- HPERM_OP(d,t, 8, 0x00ff0000L);
- HPERM_OP(d,t, 2, 0x33330000L);
- d=((d&0x00aa00aaL)<<7L)|((d&0x55005500L)>>7L)|(d&0xaa55aa55L);
- d=(d>>8)|((c&0xf0000000L)>>4);
- c&=0x0fffffffL; */
-
- /* I now do it in 47 simple operations :-)
+ /* do PC1 in 47 simple operations :-)
* Thanks to John Fletcher (john_fletcher@lccmail.ocf.llnl.gov)
* for the inspiration. :-) */
PERM_OP (d,c,t,4,0x0f0f0f0fL);
/* could be a few less shifts but I am to lazy at this
* point in time to investigate */
s= des_skb[0][ (c )&0x3f ]|
- des_skb[1][((c>> 6)&0x03)|((c>> 7L)&0x3c)]|
- des_skb[2][((c>>13)&0x0f)|((c>>14L)&0x30)]|
- des_skb[3][((c>>20)&0x01)|((c>>21L)&0x06) |
+ des_skb[1][((c>> 6L)&0x03)|((c>> 7L)&0x3c)]|
+ des_skb[2][((c>>13L)&0x0f)|((c>>14L)&0x30)]|
+ des_skb[3][((c>>20L)&0x01)|((c>>21L)&0x06) |
((c>>22L)&0x38)];
t= des_skb[4][ (d )&0x3f ]|
des_skb[5][((d>> 7L)&0x03)|((d>> 8L)&0x3c)]|
t2=((s>>16L)|(t&0xffff0000L));
*(k++)=ROTATE(t2,26)&0xffffffffL;
}
- return(0);
}
-int des_key_sched(key, schedule)
-des_cblock (*key);
-des_key_schedule schedule;
+int DES_key_sched(const_DES_cblock *key, DES_key_schedule *schedule)
+ {
+ return(DES_set_key(key,schedule));
+ }
+/*
+#undef des_fixup_key_parity
+void des_fixup_key_parity(des_cblock *key)
{
- return(des_set_key(key,schedule));
+ des_set_odd_parity(key);
}
+*/
projects / openssl.git / blobdiff