🚀 go-pugleaf

Nope

Spoke to soon..

This code does not seem to work... hehe

void encipher_ext(unsigned long *const v,unsigned long *const w,
const unsigned long *const k)
{
   register unsigned long       y=v[0],z=v[1],sum=0,delta=0x9E3779B9,n=32;

   while(n-->0)
      {

  y = (y + ( (z << 4) ^ (z >> 5) ) + z) ^ (sum + k[ sum & 3 ]);

  // y+= (z<<4 ^ z>>5) + z ^ sum + k[sum&3];
      sum += delta;

  // z+= (y<<4 ^ y>>5) + y ^ sum + k[sum>>11 & 3];

  z = (z + ( (y << 4) ^ (y >> 5) ) + y) ^ (sum + k[ (sum >> 11) & 3]);

      }

   w[0]=y; w[1]=z;
}

void decipher_ext(unsigned long *const v,unsigned long *const w,
const unsigned long *const k)
{
   register unsigned long       y=v[0],z=v[1],sum=0xC6EF3720,
                                delta=0x9E3779B9,n=32;

   /* sum = delta<<5, in general sum = delta * n */

   while(n-->0)
      {
  // z-= (y<<4 ^ y>>5) + y ^ sum + k[sum>>11 & 3];

  z = (z + ( (y << 4) ^ (y >> 5) ) + y) ^ (sum + k[ (sum >> 11) & 3]);


  sum -= delta;

  // y-= (z<<4 ^ z>>5) + z ^ sum + k[sum&3];

  y = (y + ( (z << 4) ^ (z >> 5) ) + z) ^ (sum + k[ sum & 3 ]);

      }

   w[0]=y; w[1]=z;
}



<disastry@saiknes.lv.NO.SPaM.NET> wrote in message
news:3D69F6F6.E43591E6@saiknes.lv.NO.SPaM.NET...
> -----BEGIN PGP SIGNED MESSAGE-----
> Hash: RIPEMD160
>
> skybuck wrote:
> > The problems are probably with these lines of code:
> >
> > c version:
> >
> > y += (z<<4)+a ^ z+sum ^ (z>>5)+b;
> > z += (y<<4)+c ^ y+sum ^ (y>>5)+d;
> >
> > pascal version:
> >
> > y := y + (z shl 4) + a xor z + _sum xor (z shr 5) + b;
> > z := z + (y shl 4) + c xor y + _sum xor (y shr 5) + d;
>
> 1) try:
>   y := y + ((z shl 4) + a xor z + _sum xor (z shr 5) + b);
> or even
>   y := y + (((z shl 4) + a) xor (z + _sum) xor ((z shr 5) + b));
>
> 2) better use XTEA (aka (TEAN)
>
> __
> Disastry  http://disastry.dhs.org/
> http://disastry.dhs.org/pgp <----PGP plugins for Netscape and MDaemon
>  ^----PGP 2.6.3ia-multi06 (supports IDEA, CAST5, BLOWFISH, TWOFISH,
>       AES, 3DES ciphers and MD5, SHA1, RIPEMD160, SHA2 hashes)
> -----BEGIN PGP SIGNATURE-----
> Version: Netscape PGP half-Plugin 0.15 by Disastry / PGPsdk v1.7.1
>
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> hQBQJElRGLhZ0OyB59/rQvpn
> =ouN1
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