39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58 
  59 #include "des_locl.h"
  60 #include "spr.h"
  61 
  62 void DES_encrypt1(DES_LONG *data, DES_key_schedule *ks, int enc)
  63         {
  64         register DES_LONG l,r,t,u;
  65 #ifdef DES_PTR
  66         register const unsigned char *des_SP=(const unsigned char *)DES_SPtrans;
  67 #endif
  68 #ifndef DES_UNROLL
  69         register int i;
  70 #endif
  71         register DES_LONG *s;
  72 
  73         r=data[0];
  74         l=data[1];
  75 
  76         IP(r,l);
  77         /* Things have been modified so that the initial rotate is
  78          * done outside the loop.  This required the
  79          * DES_SPtrans values in sp.h to be rotated 1 bit to the right.
  80          * One perl script later and things have a 5% speed up on a sparc2.

  39  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
  40  *
  41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
  42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  44  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
  45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
  46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
  47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
  50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  51  * SUCH DAMAGE.
  52  *
  53  * The licence and distribution terms for any publically available version or
  54  * derivative of this code cannot be changed.  i.e. this code cannot simply be
  55  * copied and put under another distribution licence
  56  * [including the GNU Public Licence.]
  57  */
  58 
  59 #include <des_locl.h>
  60 #include <spr.h>
  61 
  62 void DES_encrypt1(DES_LONG *data, DES_key_schedule *ks, int enc)
  63         {
  64         register DES_LONG l,r,t,u;
  65 #ifdef DES_PTR
  66         register const unsigned char *des_SP=(const unsigned char *)DES_SPtrans;
  67 #endif
  68 #ifndef DES_UNROLL
  69         register int i;
  70 #endif
  71         register DES_LONG *s;
  72 
  73         r=data[0];
  74         l=data[1];
  75 
  76         IP(r,l);
  77         /* Things have been modified so that the initial rotate is
  78          * done outside the loop.  This required the
  79          * DES_SPtrans values in sp.h to be rotated 1 bit to the right.
  80          * One perl script later and things have a 5% speed up on a sparc2.