?? des-ziji.txt
字號:
makedata( left , right ,(ULONG32)number) ;
}
break;
default:
break;
}
/*最后一輪操作不交換左右值*/
tmp = *left ;
*left = *right ;
*right = tmp ;
/*最后一次調整wz_pc4[64]*/
for ( j = 0 ; j < 64 ; j++)
{
if (j < 32 )
{
if ( wz_pc4[j] > 32)/*屬于right*/
{
if ( *right&wz_pc2[wz_pc4[j]-1] )
{
tmpbuf[0] |= wz_pc2[j] ;
}
}
else
{
if ( *left&wz_pc2[wz_pc4[j]-1] )
{
tmpbuf[0] |= wz_pc2[j] ;
}
}
}
else
{
if ( wz_pc4[j] > 32)/*屬于right*/
{
if ( *right&wz_pc2[wz_pc4[j]-1] )
{
tmpbuf[1] |= wz_pc2[j] ;
}
}
else
{
if ( *left&wz_pc2[wz_pc4[j]-1] )
{
tmpbuf[1] |= wz_pc2[j] ;
}
}
}
}
*left = tmpbuf[0] ;
*right = tmpbuf[1];
return SUCCESS;
}
INT32 makedata(ULONG32 *left ,ULONG32 *right ,ULONG32 number)
{
INT32 j;
ULONG32 oldright = *right;
ULONG8 rexpbuf[8] = { 0} ;
ULONG32 datatmp = 0;
ULONG32 exp[2] = { 0} ;
//由32擴充至48位
for ( j = 0 ; j < 48 ; j++)
{
/*兩個32位，每個存放24位*/
if ( j < 24 )
{
if ( *right&wz_pc2[exptab3[j]-1] )
{
exp[0] |= wz_pc2[j] ;
}
}
else
{
if ( *right&wz_pc2[exptab3[j]-1] )
{
exp[1] |= wz_pc2[j-24] ;
}
}
}
for ( j = 0 ; j < 2 ; j++)
{
exp[j] ^= g_outkey[number][j] ;
}
/*由48－>32*/
exp[1] >>= 8 ;
rexpbuf[7] = (ULONG8) (exp[1]&0x0000003fL) ;
exp[1] >>= 6 ;
rexpbuf[6] = (ULONG8) (exp[1]&0x0000003fL) ;
exp[1] >>= 6 ;
rexpbuf[5] = (ULONG8) (exp[1]&0x0000003fL) ;
exp[1] >>= 6 ;
rexpbuf[4] = (ULONG8) (exp[1]&0x0000003fL) ;
exp[0] >>= 8 ;
rexpbuf[3] = (ULONG8) (exp[0]&0x0000003fL) ;
exp[0] >>= 6 ;
rexpbuf[2] = (ULONG8) (exp[0]&0x0000003fL) ;
exp[0] >>= 6 ;
rexpbuf[1] = (ULONG8) (exp[0]&0x0000003fL) ;
exp[0] >>= 6 ;
rexpbuf[0] = (ULONG8) (exp[0]&0x0000003fL) ;
exp[0] = 0 ;
exp[1] = 0 ;
/*由48－> 32*/
*right = 0 ;
for ( j = 0 ; j < 7 ; j++)
{
*right |= SP[j][rexpbuf[j]] ;
*right <<= 4 ;
}
*right |= SP[j][rexpbuf[j]] ;
/*又要換位了*/
datatmp = 0;
for ( j = 0 ; j < 32 ; j++)
{
if ( *right&wz_pc2[wz_pc3[j]-1] )
{
datatmp |= wz_pc2[j] ;
}
}
*right = datatmp ;
/*一輪結束收尾操作*/
*right ^= *left;
*left = oldright;
return SUCCESS;
}
INT32 makefirstkey( ULONG32 *keyP )
{
ULONG32 key[2] = {0};
ULONG32 *Pkey ;
ULONG32 *Pbufkey ;
INT32 j;
Pbufkey = (ULONG32*)g_bufkey ;
Pkey = (ULONG32*)key;
memset((ULONG8*)g_bufkey,0,sizeof(g_bufkey));
memcpy((ULONG8*)&key,(ULONG8*)keyP ,8) ;
memset((ULONG8*)g_outkey,0,sizeof(g_outkey));
for( j = 0 ; j < 28 ; j++)
{
if ( wz_keyleft[j] > 32 )
{
if ( Pkey[1]&wz_pc2[wz_keyleft[j]-1] )
{
Pbufkey[0] |= wz_pc2[j] ;
}
}
else
{
if ( Pkey[0]&wz_pc2[wz_keyleft[j]-1] )
{
Pbufkey[0] |= wz_pc2[j] ;
}
}
if ( wz_keyright[j] > 32 )
{
if ( Pkey[1]&wz_pc2[wz_keyright[j]-1] )
{
Pbufkey[1] |= wz_pc2[j];
}
}
else
{
if ( Pkey[0]&wz_pc2[wz_keyright[j]-1] )
{
Pbufkey[1] |= wz_pc2[j];
}
}
}
for (j = 0 ; j < 16 ; j++)
{
makekey(&Pbufkey[0],&Pbufkey[1] , j ) ;
}
return SUCCESS;
}
INT32 makekey( ULONG32 *keyleft,ULONG32 *keyright ,ULONG32 number)/*輸入密鑰的地址，一個32位的*/
{
ULONG32 tmpkey[2] ={0};
ULONG32 *Ptmpkey = (ULONG32*)tmpkey;
ULONG32 *Poutkey = (ULONG32*)&g_outkey[number];
INT32 j;
memset((ULONG8*)tmpkey,0,sizeof(tmpkey));
/*要最高的一位或兩位*/
*Ptmpkey = *keyleft&wz_leftandtab[wz_lefttable[number]] ;
Ptmpkey[1] = *keyright&wz_leftandtab[wz_lefttable[number]] ;
if ( wz_lefttable[number] == 1)
{
*Ptmpkey >>= 27;
Ptmpkey[1] >>= 27;
}
else
{
*Ptmpkey >>= 26;
Ptmpkey[1] >>= 26;
}
Ptmpkey[0] &= 0xfffffff0;
Ptmpkey[1] &= 0xfffffff0;
/*得到高位的值*/
*keyleft <<= wz_lefttable[number] ;
*keyright <<= wz_lefttable[number] ;
*keyleft |= Ptmpkey[0] ;
*keyright |= Ptmpkey[1] ;
Ptmpkey[0] = 0;
Ptmpkey[1] = 0;
/*從56位中選出48位,3個16位*/
for ( j = 0 ; j < 48 ; j++)
{
if ( j < 24 )
{
if ( *keyleft&wz_pc2[wz_keychoose[j]-1])
{
Poutkey[0] |= wz_pc2[j] ;
}
}
else /*j>=24*/
{
if ( *keyright&wz_pc2[(wz_keychoose[j]-28)])
{
Poutkey[1] | = wz_pc2[j-24] ;
}
}
}
return SUCCESS;
}
代碼在win2000/vc6.0環境下測試通過.
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