32 lines
647 B
C
32 lines
647 B
C
|
#include "os.h"
|
||
|
|
#include <libsec.h>
|
||
|
|
|
||
|
|
/*
|
||
|
|
* these routines use the 64bit format for
|
||
|
|
* DES keys.
|
||
|
|
*/
|
||
|
|
|
||
|
|
void
|
||
|
|
setupDESstate(DESstate *s, uchar key[8], uchar *ivec)
|
||
|
|
{
|
||
|
|
memset(s, 0, sizeof(*s));
|
||
|
|
memmove(s->key, key, sizeof(s->key));
|
||
|
|
des_key_setup(key, s->expanded);
|
||
|
|
if(ivec)
|
||
|
|
memmove(s->ivec, ivec, 8);
|
||
|
|
s->setup = 0xdeadbeef;
|
||
|
|
}
|
||
|
|
|
||
|
|
void
|
||
|
|
setupDES3state(DES3state *s, uchar key[3][8], uchar *ivec)
|
||
|
|
{
|
||
|
|
memset(s, 0, sizeof(*s));
|
||
|
|
memmove(s->key, key, sizeof(s->key));
|
||
|
|
des_key_setup(key[0], s->expanded[0]);
|
||
|
|
des_key_setup(key[1], s->expanded[1]);
|
||
|
|
des_key_setup(key[2], s->expanded[2]);
|
||
|
|
if(ivec)
|
||
|
|
memmove(s->ivec, ivec, 8);
|
||
|
|
s->setup = 0xdeadbeef;
|
||
|
|
}
|