drivers/staging/skein/threefish256Block.c

#include <linux/string.h>
#include <threefishApi.h>


void threefishEncrypt256(struct threefish_key* keyCtx, uint64_t* input, uint64_t* output)
  {

    uint64_t b0 = input[0], b1 = input[1],
      b2 = input[2], b3 = input[3];
    uint64_t k0 = keyCtx->key[0], k1 = keyCtx->key[1],
      k2 = keyCtx->key[2], k3 = keyCtx->key[3],
      k4 = keyCtx->key[4];
    uint64_t t0 = keyCtx->tweak[0], t1 = keyCtx->tweak[1],
      t2 = keyCtx->tweak[2];

    b1 += k1 + t0; b0 += b1 + k0; b1 = ((b1 << 14) | (b1 >> (64 - 14))) ^ b0;
    b3 += k3; b2 += b3 + k2 + t1; b3 = ((b3 << 16) | (b3 >> (64 - 16))) ^ b2;
    b0 += b3; b3 = ((b3 << 52) | (b3 >> (64 - 52))) ^ b0;
    b2 += b1; b1 = ((b1 << 57) | (b1 >> (64 - 57))) ^ b2;
    b0 += b1; b1 = ((b1 << 23) | (b1 >> (64 - 23))) ^ b0;
    b2 += b3; b3 = ((b3 << 40) | (b3 >> (64 - 40))) ^ b2;
    b0 += b3; b3 = ((b3 << 5) | (b3 >> (64 - 5))) ^ b0;
    b2 += b1; b1 = ((b1 << 37) | (b1 >> (64 - 37))) ^ b2;
    b1 += k2 + t1; b0 += b1 + k1; b1 = ((b1 << 25) | (b1 >> (64 - 25))) ^ b0;
    b3 += k4 + 1; b2 += b3 + k3 + t2; b3 = ((b3 << 33) | (b3 >> (64 - 33))) ^ b2;
    b0 += b3; b3 = ((b3 << 46) | (b3 >> (64 - 46))) ^ b0;
    b2 += b1; b1 = ((b1 << 12) | (b1 >> (64 - 12))) ^ b2;
    b0 += b1; b1 = ((b1 << 58) | (b1 >> (64 - 58))) ^ b0;
    b2 += b3; b3 = ((b3 << 22) | (b3 >> (64 - 22))) ^ b2;
    b0 += b3; b3 = ((b3 << 32) | (b3 >> (64 - 32))) ^ b0;
    b2 += b1; b1 = ((b1 << 32) | (b1 >> (64 - 32))) ^ b2;

    b1 += k3 + t2; b0 += b1 + k2; b1 = ((b1 << 14) | (b1 >> (64 - 14))) ^ b0;
    b3 += k0 + 2; b2 += b3 + k4 + t0; b3 = ((b3 << 16) | (b3 >> (64 - 16))) ^ b2;
    b0 += b3; b3 = ((b3 << 52) | (b3 >> (64 - 52))) ^ b0;
    b2 += b1; b1 = ((b1 << 57) | (b1 >> (64 - 57))) ^ b2;
    b0 += b1; b1 = ((b1 << 23) | (b1 >> (64 - 23))) ^ b0;
    b2 += b3; b3 = ((b3 << 40) | (b3 >> (64 - 40))) ^ b2;
    b0 += b3; b3 = ((b3 << 5) | (b3 >> (64 - 5))) ^ b0;
    b2 += b1; b1 = ((b1 << 37) | (b1 >> (64 - 37))) ^ b2;
    b1 += k4 + t0; b0 += b1 + k3; b1 = ((b1 << 25) | (b1 >> (64 - 25))) ^ b0;
    b3 += k1 + 3; b2 += b3 + k0 + t1; b3 = ((b3 << 33) | (b3 >> (64 - 33))) ^ b2;
    b0 += b3; b3 = ((b3 << 46) | (b3 >> (64 - 46))) ^ b0;
    b2 += b1; b1 = ((b1 << 12) | (b1 >> (64 - 12))) ^ b2;
    b0 += b1; b1 = ((b1 << 58) | (b1 >> (64 - 58))) ^ b0;
    b2 += b3; b3 = ((b3 << 22) | (b3 >> (64 - 22))) ^ b2;
    b0 += b3; b3 = ((b3 << 32) | (b3 >> (64 - 32))) ^ b0;
    b2 += b1; b1 = ((b1 << 32) | (b1 >> (64 - 32))) ^ b2;

    b1 += k0 + t1; b0 += b1 + k4; b1 = ((b1 << 14) | (b1 >> (64 - 14))) ^ b0;
    b3 += k2 + 4; b2 += b3 + k1 + t2; b3 = ((b3 << 16) | (b3 >> (64 - 16))) ^ b2;
    b0 += b3; b3 = ((b3 << 52) | (b3 >> (64 - 52))) ^ b0;
    b2 += b1; b1 = ((b1 << 57) | (b1 >> (64 - 57))) ^ b2;
    b0 += b1; b1 = ((b1 << 23) | (b1 >> (64 - 23))) ^ b0;
    b2 += b3; b3 = ((b3 << 40) | (b3 >> (64 - 40))) ^ b2;
    b0 += b3; b3 = ((b3 << 5) | (b3 >> (64 - 5))) ^ b0;
    b2 += b1; b1 = ((b1 << 37) | (b1 >> (64 - 37))) ^ b2;
    b1 += k1 + t2; b0 += b1 + k0; b1 = ((b1 << 25) | (b1 >> (64 - 25))) ^ b0;
    b3 += k3 + 5; b2 += b3 + k2 + t0; b3 = ((b3 << 33) | (b3 >> (64 - 33))) ^ b2;
    b0 += b3; b3 = ((b3 << 46) | (b3 >> (64 - 46))) ^ b0;
    b2 += b1; b1 = ((b1 << 12) | (b1 >> (64 - 12))) ^ b2;
    b0 += b1; b1 = ((b1 << 58) | (b1 >> (64 - 58))) ^ b0;
    b2 += b3; b3 = ((b3 << 22) | (b3 >> (64 - 22))) ^ b2;
    b0 += b3; b3 = ((b3 << 32) | (b3 >> (64 - 32))) ^ b0;
    b2 += b1; b1 = ((b1 << 32) | (b1 >> (64 - 32))) ^ b2;

    b1 += k2 + t0; b0 += b1 + k1; b1 = ((b1 << 14) | (b1 >> (64 - 14))) ^ b0;
    b3 += k4 + 6; b2 += b3 + k3 + t1; b3 = ((b3 << 16) | (b3 >> (64 - 16))) ^ b2;
    b0 += b3; b3 = ((b3 << 52) | (b3 >> (64 - 52))) ^ b0;
    b2 += b1; b1 = ((b1 << 57) | (b1 >> (64 - 57))) ^ b2;
    b0 += b1; b1 = ((b1 << 23) | (b1 >> (64 - 23))) ^ b0;
    b2 += b3; b3 = ((b3 << 40) | (b3 >> (64 - 40))) ^ b2;
    b0 += b3; b3 = ((b3 << 5) | (b3 >> (64 - 5))) ^ b0;
    b2 += b1; b1 = ((b1 << 37) | (b1 >> (64 - 37))) ^ b2;
    b1 += k3 + t1; b0 += b1 + k2; b1 = ((b1 << 25) | (b1 >> (64 - 25))) ^ b0;
    b3 += k0 + 7; b2 += b3 + k4 + t2; b3 = ((b3 << 33) | (b3 >> (64 - 33))) ^ b2;
    b0 += b3; b3 = ((b3 << 46) | (b3 >> (64 - 46))) ^ b0;
    b2 += b1; b1 = ((b1 << 12) | (b1 >> (64 - 12))) ^ b2;
    b0 += b1; b1 = ((b1 << 58) | (b1 >> (64 - 58))) ^ b0;
    b2 += b3; b3 = ((b3 << 22) | (b3 >> (64 - 22))) ^ b2;
    b0 += b3; b3 = ((b3 << 32) | (b3 >> (64 - 32))) ^ b0;
    b2 += b1; b1 = ((b1 << 32) | (b1 >> (64 - 32))) ^ b2;

    b1 += k4 + t2; b0 += b1 + k3; b1 = ((b1 << 14) | (b1 >> (64 - 14))) ^ b0;
    b3 += k1 + 8; b2 += b3 + k0 + t0; b3 = ((b3 << 16) | (b3 >> (64 - 16))) ^ b2;
    b0 += b3; b3 = ((b3 << 52) | (b3 >> (64 - 52))) ^ b0;
    b2 += b1; b1 = ((b1 << 57) | (b1 >> (64 - 57))) ^ b2;
    b0 += b1; b1 = ((b1 << 23) | (b1 >> (64 - 23))) ^ b0;
    b2 += b3; b3 = ((b3 << 40) | (b3 >> (64 - 40))) ^ b2;
    b0 += b3; b3 = ((b3 << 5) | (b3 >> (64 - 5))) ^ b0;
    b2 += b1; b1 = ((b1 << 37) | (b1 >> (64 - 37))) ^ b2;
    b1 += k0 + t0; b0 += b1 + k4; b1 = ((b1 << 25) | (b1 >> (64 - 25))) ^ b0;
    b3 += k2 + 9; b2 += b3 + k1 + t1; b3 = ((b3 << 33) | (b3 >> (64 - 33))) ^ b2;
    b0 += b3; b3 = ((b3 << 46) | (b3 >> (64 - 46))) ^ b0;
    b2 += b1; b1 = ((b1 << 12) | (b1 >> (64 - 12))) ^ b2;
    b0 += b1; b1 = ((b1 << 58) | (b1 >> (64 - 58))) ^ b0;
    b2 += b3; b3 = ((b3 << 22) | (b3 >> (64 - 22))) ^ b2;
    b0 += b3; b3 = ((b3 << 32) | (b3 >> (64 - 32))) ^ b0;
    b2 += b1; b1 = ((b1 << 32) | (b1 >> (64 - 32))) ^ b2;

    b1 += k1 + t1; b0 += b1 + k0; b1 = ((b1 << 14) | (b1 >> (64 - 14))) ^ b0;
    b3 += k3 + 10; b2 += b3 + k2 + t2; b3 = ((b3 << 16) | (b3 >> (64 - 16))) ^ b2;
    b0 += b3; b3 = ((b3 << 52) | (b3 >> (64 - 52))) ^ b0;
    b2 += b1; b1 = ((b1 << 57) | (b1 >> (64 - 57))) ^ b2;
    b0 += b1; b1 = ((b1 << 23) | (b1 >> (64 - 23))) ^ b0;
    b2 += b3; b3 = ((b3 << 40) | (b3 >> (64 - 40))) ^ b2;
    b0 += b3; b3 = ((b3 << 5) | (b3 >> (64 - 5))) ^ b0;
    b2 += b1; b1 = ((b1 << 37) | (b1 >> (64 - 37))) ^ b2;
    b1 += k2 + t2; b0 += b1 + k1; b1 = ((b1 << 25) | (b1 >> (64 - 25))) ^ b0;
    b3 += k4 + 11; b2 += b3 + k3 + t0; b3 = ((b3 << 33) | (b3 >> (64 - 33))) ^ b2;
    b0 += b3; b3 = ((b3 << 46) | (b3 >> (64 - 46))) ^ b0;
    b2 += b1; b1 = ((b1 << 12) | (b1 >> (64 - 12))) ^ b2;
    b0 += b1; b1 = ((b1 << 58) | (b1 >> (64 - 58))) ^ b0;
    b2 += b3; b3 = ((b3 << 22) | (b3 >> (64 - 22))) ^ b2;
    b0 += b3; b3 = ((b3 << 32) | (b3 >> (64 - 32))) ^ b0;
    b2 += b1; b1 = ((b1 << 32) | (b1 >> (64 - 32))) ^ b2;

    b1 += k3 + t0; b0 += b1 + k2; b1 = ((b1 << 14) | (b1 >> (64 - 14))) ^ b0;
    b3 += k0 + 12; b2 += b3 + k4 + t1; b3 = ((b3 << 16) | (b3 >> (64 - 16))) ^ b2;
    b0 += b3; b3 = ((b3 << 52) | (b3 >> (64 - 52))) ^ b0;
    b2 += b1; b1 = ((b1 << 57) | (b1 >> (64 - 57))) ^ b2;
    b0 += b1; b1 = ((b1 << 23) | (b1 >> (64 - 23))) ^ b0;
    b2 += b3; b3 = ((b3 << 40) | (b3 >> (64 - 40))) ^ b2;
    b0 += b3; b3 = ((b3 << 5) | (b3 >> (64 - 5))) ^ b0;
    b2 += b1; b1 = ((b1 << 37) | (b1 >> (64 - 37))) ^ b2;
    b1 += k4 + t1; b0 += b1 + k3; b1 = ((b1 << 25) | (b1 >> (64 - 25))) ^ b0;
    b3 += k1 + 13; b2 += b3 + k0 + t2; b3 = ((b3 << 33) | (b3 >> (64 - 33))) ^ b2;
    b0 += b3; b3 = ((b3 << 46) | (b3 >> (64 - 46))) ^ b0;
    b2 += b1; b1 = ((b1 << 12) | (b1 >> (64 - 12))) ^ b2;
    b0 += b1; b1 = ((b1 << 58) | (b1 >> (64 - 58))) ^ b0;
    b2 += b3; b3 = ((b3 << 22) | (b3 >> (64 - 22))) ^ b2;
    b0 += b3; b3 = ((b3 << 32) | (b3 >> (64 - 32))) ^ b0;
    b2 += b1; b1 = ((b1 << 32) | (b1 >> (64 - 32))) ^ b2;

    b1 += k0 + t2; b0 += b1 + k4; b1 = ((b1 << 14) | (b1 >> (64 - 14))) ^ b0;
    b3 += k2 + 14; b2 += b3 + k1 + t0; b3 = ((b3 << 16) | (b3 >> (64 - 16))) ^ b2;
    b0 += b3; b3 = ((b3 << 52) | (b3 >> (64 - 52))) ^ b0;
    b2 += b1; b1 = ((b1 << 57) | (b1 >> (64 - 57))) ^ b2;
    b0 += b1; b1 = ((b1 << 23) | (b1 >> (64 - 23))) ^ b0;
    b2 += b3; b3 = ((b3 << 40) | (b3 >> (64 - 40))) ^ b2;
    b0 += b3; b3 = ((b3 << 5) | (b3 >> (64 - 5))) ^ b0;
    b2 += b1; b1 = ((b1 << 37) | (b1 >> (64 - 37))) ^ b2;
    b1 += k1 + t0; b0 += b1 + k0; b1 = ((b1 << 25) | (b1 >> (64 - 25))) ^ b0;
    b3 += k3 + 15; b2 += b3 + k2 + t1; b3 = ((b3 << 33) | (b3 >> (64 - 33))) ^ b2;
    b0 += b3; b3 = ((b3 << 46) | (b3 >> (64 - 46))) ^ b0;
    b2 += b1; b1 = ((b1 << 12) | (b1 >> (64 - 12))) ^ b2;
    b0 += b1; b1 = ((b1 << 58) | (b1 >> (64 - 58))) ^ b0;
    b2 += b3; b3 = ((b3 << 22) | (b3 >> (64 - 22))) ^ b2;
    b0 += b3; b3 = ((b3 << 32) | (b3 >> (64 - 32))) ^ b0;
    b2 += b1; b1 = ((b1 << 32) | (b1 >> (64 - 32))) ^ b2;

    b1 += k2 + t1; b0 += b1 + k1; b1 = ((b1 << 14) | (b1 >> (64 - 14))) ^ b0;
    b3 += k4 + 16; b2 += b3 + k3 + t2; b3 = ((b3 << 16) | (b3 >> (64 - 16))) ^ b2;
    b0 += b3; b3 = ((b3 << 52) | (b3 >> (64 - 52))) ^ b0;
    b2 += b1; b1 = ((b1 << 57) | (b1 >> (64 - 57))) ^ b2;
    b0 += b1; b1 = ((b1 << 23) | (b1 >> (64 - 23))) ^ b0;
    b2 += b3; b3 = ((b3 << 40) | (b3 >> (64 - 40))) ^ b2;
    b0 += b3; b3 = ((b3 << 5) | (b3 >> (64 - 5))) ^ b0;
    b2 += b1; b1 = ((b1 << 37) | (b1 >> (64 - 37))) ^ b2;
    b1 += k3 + t2; b0 += b1 + k2; b1 = ((b1 << 25) | (b1 >> (64 - 25))) ^ b0;
    b3 += k0 + 17; b2 += b3 + k4 + t0; b3 = ((b3 << 33) | (b3 >> (64 - 33))) ^ b2;
    b0 += b3; b3 = ((b3 << 46) | (b3 >> (64 - 46))) ^ b0;
    b2 += b1; b1 = ((b1 << 12) | (b1 >> (64 - 12))) ^ b2;
    b0 += b1; b1 = ((b1 << 58) | (b1 >> (64 - 58))) ^ b0;
    b2 += b3; b3 = ((b3 << 22) | (b3 >> (64 - 22))) ^ b2;
    b0 += b3; b3 = ((b3 << 32) | (b3 >> (64 - 32))) ^ b0;
    b2 += b1; b1 = ((b1 << 32) | (b1 >> (64 - 32))) ^ b2;

    output[0] = b0 + k3;
    output[1] = b1 + k4 + t0;
    output[2] = b2 + k0 + t1;
    output[3] = b3 + k1 + 18;
  }

void threefishDecrypt256(struct threefish_key* keyCtx, uint64_t* input, uint64_t* output)
  {
    uint64_t b0 = input[0], b1 = input[1],
      b2 = input[2], b3 = input[3];
    uint64_t k0 = keyCtx->key[0], k1 = keyCtx->key[1],
      k2 = keyCtx->key[2], k3 = keyCtx->key[3],
      k4 = keyCtx->key[4];
    uint64_t t0 = keyCtx->tweak[0], t1 = keyCtx->tweak[1],
      t2 = keyCtx->tweak[2];

    uint64_t tmp;

    b0 -= k3;
    b1 -= k4 + t0;
    b2 -= k0 + t1;
    b3 -= k1 + 18;
    tmp = b3 ^ b0; b3 = (tmp >> 32) | (tmp << (64 - 32)); b0 -= b3;
    tmp = b1 ^ b2; b1 = (tmp >> 32) | (tmp << (64 - 32)); b2 -= b1;
    tmp = b1 ^ b0; b1 = (tmp >> 58) | (tmp << (64 - 58)); b0 -= b1;
    tmp = b3 ^ b2; b3 = (tmp >> 22) | (tmp << (64 - 22)); b2 -= b3;
    tmp = b3 ^ b0; b3 = (tmp >> 46) | (tmp << (64 - 46)); b0 -= b3;
    tmp = b1 ^ b2; b1 = (tmp >> 12) | (tmp << (64 - 12)); b2 -= b1;
    tmp = b1 ^ b0; b1 = (tmp >> 25) | (tmp << (64 - 25)); b0 -= b1 + k2; b1 -= k3 + t2;
    tmp = b3 ^ b2; b3 = (tmp >> 33) | (tmp << (64 - 33)); b2 -= b3 + k4 + t0; b3 -= k0 + 17;
    tmp = b3 ^ b0; b3 = (tmp >> 5) | (tmp << (64 - 5)); b0 -= b3;
    tmp = b1 ^ b2; b1 = (tmp >> 37) | (tmp << (64 - 37)); b2 -= b1;
    tmp = b1 ^ b0; b1 = (tmp >> 23) | (tmp << (64 - 23)); b0 -= b1;
    tmp = b3 ^ b2; b3 = (tmp >> 40) | (tmp << (64 - 40)); b2 -= b3;
    tmp = b3 ^ b0; b3 = (tmp >> 52) | (tmp << (64 - 52)); b0 -= b3;
    tmp = b1 ^ b2; b1 = (tmp >> 57) | (tmp << (64 - 57)); b2 -= b1;
    tmp = b1 ^ b0; b1 = (tmp >> 14) | (tmp << (64 - 14)); b0 -= b1 + k1; b1 -= k2 + t1;
    tmp = b3 ^ b2; b3 = (tmp >> 16) | (tmp << (64 - 16)); b2 -= b3 + k3 + t2; b3 -= k4 + 16;

    tmp = b3 ^ b0; b3 = (tmp >> 32) | (tmp << (64 - 32)); b0 -= b3;
    tmp = b1 ^ b2; b1 = (tmp >> 32) | (tmp << (64 - 32)); b2 -= b1;
    tmp = b1 ^ b0; b1 = (tmp >> 58) | (tmp << (64 - 58)); b0 -= b1;
    tmp = b3 ^ b2; b3 = (tmp >> 22) | (tmp << (64 - 22)); b2 -= b3;
    tmp = b3 ^ b0; b3 = (tmp >> 46) | (tmp << (64 - 46)); b0 -= b3;
    tmp = b1 ^ b2; b1 = (tmp >> 12) | (tmp << (64 - 12)); b2 -= b1;
    tmp = b1 ^ b0; b1 = (tmp >> 25) | (tmp << (64 - 25)); b0 -= b1 + k0; b1 -= k1 + t0;
    tmp = b3 ^ b2; b3 = (tmp >> 33) | (tmp << (64 - 33)); b2 -= b3 + k2 + t1; b3 -= k3 + 15;
    tmp = b3 ^ b0; b3 = (tmp >> 5) | (tmp << (64 - 5)); b0 -= b3;
    tmp = b1 ^ b2; b1 = (tmp >> 37) | (tmp << (64 - 37)); b2 -= b1;
    tmp = b1 ^ b0; b1 = (tmp >> 23) | (tmp << (64 - 23)); b0 -= b1;
    tmp = b3 ^ b2; b3 = (tmp >> 40) | (tmp << (64 - 40)); b2 -= b3;
    tmp = b3 ^ b0; b3 = (tmp >> 52) | (tmp << (64 - 52)); b0 -= b3;
    tmp = b1 ^ b2; b1 = (tmp >> 57) | (tmp << (64 - 57)); b2 -= b1;
    tmp = b1 ^ b0; b1 = (tmp >> 14) | (tmp << (64 - 14)); b0 -= b1 + k4; b1 -= k0 + t2;
    tmp = b3 ^ b2; b3 = (tmp >> 16) | (tmp << (64 - 16)); b2 -= b3 + k1 + t0; b3 -= k2 + 14;

    tmp = b3 ^ b0; b3 = (tmp >> 32) | (tmp << (64 - 32)); b0 -= b3;
    tmp = b1 ^ b2; b1 = (tmp >> 32) | (tmp << (64 - 32)); b2 -= b1;
    tmp = b1 ^ b0; b1 = (tmp >> 58) | (tmp << (64 - 58)); b0 -= b1;
    tmp = b3 ^ b2; b3 = (tmp >> 22) | (tmp << (64 - 22)); b2 -= b3;
    tmp = b3 ^ b0; b3 = (tmp >> 46) | (tmp << (64 - 46)); b0 -= b3;
    tmp = b1 ^ b2; b1 = (tmp >> 12) | (tmp << (64 - 12)); b2 -= b1;
    tmp = b1 ^ b0; b1 = (tmp >> 25) | (tmp << (64 - 25)); b0 -= b1 + k3; b1 -= k4 + t1;
    tmp = b3 ^ b2; b3 = (tmp >> 33) | (tmp << (64 - 33)); b2 -= b3 + k0 + t2; b3 -= k1 + 13;
    tmp = b3 ^ b0; b3 = (tmp >> 5) | (tmp << (64 - 5)); b0 -= b3;
    tmp = b1 ^ b2; b1 = (tmp >> 37) | (tmp << (64 - 37)); b2 -= b1;
    tmp = b1 ^ b0; b1 = (tmp >> 23) | (tmp << (64 - 23)); b0 -= b1;
    tmp = b3 ^ b2; b3 = (tmp >> 40) | (tmp << (64 - 40)); b2 -= b3;
    tmp = b3 ^ b0; b3 = (tmp >> 52) | (tmp << (64 - 52)); b0 -= b3;
    tmp = b1 ^ b2; b1 = (tmp >> 57) | (tmp << (64 - 57)); b2 -= b1;
    tmp = b1 ^ b0; b1 = (tmp >> 14) | (tmp << (64 - 14)); b0 -= b1 + k2; b1 -= k3 + t0;
    tmp = b3 ^ b2; b3 = (tmp >> 16) | (tmp << (64 - 16)); b2 -= b3 + k4 + t1; b3 -= k0 + 12;

    tmp = b3 ^ b0; b3 = (tmp >> 32) | (tmp << (64 - 32)); b0 -= b3;
    tmp = b1 ^ b2; b1 = (tmp >> 32) | (tmp << (64 - 32)); b2 -= b1;
    tmp = b1 ^ b0; b1 = (tmp >> 58) | (tmp << (64 - 58)); b0 -= b1;
    tmp = b3 ^ b2; b3 = (tmp >> 22) | (tmp << (64 - 22)); b2 -= b3;
    tmp = b3 ^ b0; b3 = (tmp >> 46) | (tmp << (64 - 46)); b0 -= b3;
    tmp = b1 ^ b2; b1 = (tmp >> 12) | (tmp << (64 - 12)); b2 -= b1;
    tmp = b1 ^ b0; b1 = (tmp >> 25) | (tmp << (64 - 25)); b0 -= b1 + k1; b1 -= k2 + t2;
    tmp = b3 ^ b2; b3 = (tmp >> 33) | (tmp << (64 - 33)); b2 -= b3 + k3 + t0; b3 -= k4 + 11;
    tmp = b3 ^ b0; b3 = (tmp >> 5) | (tmp << (64 - 5)); b0 -= b3;
    tmp = b1 ^ b2; b1 = (tmp >> 37) | (tmp << (64 - 37)); b2 -= b1;
    tmp = b1 ^ b0; b1 = (tmp >> 23) | (tmp << (64 - 23)); b0 -= b1;
    tmp = b3 ^ b2; b3 = (tmp >> 40) | (tmp << (64 - 40)); b2 -= b3;
    tmp = b3 ^ b0; b3 = (tmp >> 52) | (tmp << (64 - 52)); b0 -= b3;
    tmp = b1 ^ b2; b1 = (tmp >> 57) | (tmp << (64 - 57)); b2 -= b1;
    tmp = b1 ^ b0; b1 = (tmp >> 14) | (tmp << (64 - 14)); b0 -= b1 + k0; b1 -= k1 + t1;
    tmp = b3 ^ b2; b3 = (tmp >> 16) | (tmp << (64 - 16)); b2 -= b3 + k2 + t2; b3 -= k3 + 10;

    tmp = b3 ^ b0; b3 = (tmp >> 32) | (tmp << (64 - 32)); b0 -= b3;
    tmp = b1 ^ b2; b1 = (tmp >> 32) | (tmp << (64 - 32)); b2 -= b1;
    tmp = b1 ^ b0; b1 = (tmp >> 58) | (tmp << (64 - 58)); b0 -= b1;
    tmp = b3 ^ b2; b3 = (tmp >> 22) | (tmp << (64 - 22)); b2 -= b3;
    tmp = b3 ^ b0; b3 = (tmp >> 46) | (tmp << (64 - 46)); b0 -= b3;
    tmp = b1 ^ b2; b1 = (tmp >> 12) | (tmp << (64 - 12)); b2 -= b1;
    tmp = b1 ^ b0; b1 = (tmp >> 25) | (tmp << (64 - 25)); b0 -= b1 + k4; b1 -= k0 + t0;
    tmp = b3 ^ b2; b3 = (tmp >> 33) | (tmp << (64 - 33)); b2 -= b3 + k1 + t1; b3 -= k2 + 9;
    tmp = b3 ^ b0; b3 = (tmp >> 5) | (tmp << (64 - 5)); b0 -= b3;
    tmp = b1 ^ b2; b1 = (tmp >> 37) | (tmp << (64 - 37)); b2 -= b1;
    tmp = b1 ^ b0; b1 = (tmp >> 23) | (tmp << (64 - 23)); b0 -= b1;
    tmp = b3 ^ b2; b3 = (tmp >> 40) | (tmp << (64 - 40)); b2 -= b3;
    tmp = b3 ^ b0; b3 = (tmp >> 52) | (tmp << (64 - 52)); b0 -= b3;
    tmp = b1 ^ b2; b1 = (tmp >> 57) | (tmp << (64 - 57)); b2 -= b1;
    tmp = b1 ^ b0; b1 = (tmp >> 14) | (tmp << (64 - 14)); b0 -= b1 + k3; b1 -= k4 + t2;
    tmp = b3 ^ b2; b3 = (tmp >> 16) | (tmp << (64 - 16)); b2 -= b3 + k0 + t0; b3 -= k1 + 8;

    tmp = b3 ^ b0; b3 = (tmp >> 32) | (tmp << (64 - 32)); b0 -= b3;
    tmp = b1 ^ b2; b1 = (tmp >> 32) | (tmp << (64 - 32)); b2 -= b1;
    tmp = b1 ^ b0; b1 = (tmp >> 58) | (tmp << (64 - 58)); b0 -= b1;
    tmp = b3 ^ b2; b3 = (tmp >> 22) | (tmp << (64 - 22)); b2 -= b3;
    tmp = b3 ^ b0; b3 = (tmp >> 46) | (tmp << (64 - 46)); b0 -= b3;
    tmp = b1 ^ b2; b1 = (tmp >> 12) | (tmp << (64 - 12)); b2 -= b1;
    tmp = b1 ^ b0; b1 = (tmp >> 25) | (tmp << (64 - 25)); b0 -= b1 + k2; b1 -= k3 + t1;
    tmp = b3 ^ b2; b3 = (tmp >> 33) | (tmp << (64 - 33)); b2 -= b3 + k4 + t2; b3 -= k0 + 7;
    tmp = b3 ^ b0; b3 = (tmp >> 5) | (tmp << (64 - 5)); b0 -= b3;
    tmp = b1 ^ b2; b1 = (tmp >> 37) | (tmp << (64 - 37)); b2 -= b1;
    tmp = b1 ^ b0; b1 = (tmp >> 23) | (tmp << (64 - 23)); b0 -= b1;
    tmp = b3 ^ b2; b3 = (tmp >> 40) | (tmp << (64 - 40)); b2 -= b3;
    tmp = b3 ^ b0; b3 = (tmp >> 52) | (tmp << (64 - 52)); b0 -= b3;
    tmp = b1 ^ b2; b1 = (tmp >> 57) | (tmp << (64 - 57)); b2 -= b1;
    tmp = b1 ^ b0; b1 = (tmp >> 14) | (tmp << (64 - 14)); b0 -= b1 + k1; b1 -= k2 + t0;
    tmp = b3 ^ b2; b3 = (tmp >> 16) | (tmp << (64 - 16)); b2 -= b3 + k3 + t1; b3 -= k4 + 6;

    tmp = b3 ^ b0; b3 = (tmp >> 32) | (tmp << (64 - 32)); b0 -= b3;
    tmp = b1 ^ b2; b1 = (tmp >> 32) | (tmp << (64 - 32)); b2 -= b1;
    tmp = b1 ^ b0; b1 = (tmp >> 58) | (tmp << (64 - 58)); b0 -= b1;
    tmp = b3 ^ b2; b3 = (tmp >> 22) | (tmp << (64 - 22)); b2 -= b3;
    tmp = b3 ^ b0; b3 = (tmp >> 46) | (tmp << (64 - 46)); b0 -= b3;
    tmp = b1 ^ b2; b1 = (tmp >> 12) | (tmp << (64 - 12)); b2 -= b1;
    tmp = b1 ^ b0; b1 = (tmp >> 25) | (tmp << (64 - 25)); b0 -= b1 + k0; b1 -= k1 + t2;
    tmp = b3 ^ b2; b3 = (tmp >> 33) | (tmp << (64 - 33)); b2 -= b3 + k2 + t0; b3 -= k3 + 5;
    tmp = b3 ^ b0; b3 = (tmp >> 5) | (tmp << (64 - 5)); b0 -= b3;
    tmp = b1 ^ b2; b1 = (tmp >> 37) | (tmp << (64 - 37)); b2 -= b1;
    tmp = b1 ^ b0; b1 = (tmp >> 23) | (tmp << (64 - 23)); b0 -= b1;
    tmp = b3 ^ b2; b3 = (tmp >> 40) | (tmp << (64 - 40)); b2 -= b3;
    tmp = b3 ^ b0; b3 = (tmp >> 52) | (tmp << (64 - 52)); b0 -= b3;
    tmp = b1 ^ b2; b1 = (tmp >> 57) | (tmp << (64 - 57)); b2 -= b1;
    tmp = b1 ^ b0; b1 = (tmp >> 14) | (tmp << (64 - 14)); b0 -= b1 + k4; b1 -= k0 + t1;
    tmp = b3 ^ b2; b3 = (tmp >> 16) | (tmp << (64 - 16)); b2 -= b3 + k1 + t2; b3 -= k2 + 4;

    tmp = b3 ^ b0; b3 = (tmp >> 32) | (tmp << (64 - 32)); b0 -= b3;
    tmp = b1 ^ b2; b1 = (tmp >> 32) | (tmp << (64 - 32)); b2 -= b1;
    tmp = b1 ^ b0; b1 = (tmp >> 58) | (tmp << (64 - 58)); b0 -= b1;
    tmp = b3 ^ b2; b3 = (tmp >> 22) | (tmp << (64 - 22)); b2 -= b3;
    tmp = b3 ^ b0; b3 = (tmp >> 46) | (tmp << (64 - 46)); b0 -= b3;
    tmp = b1 ^ b2; b1 = (tmp >> 12) | (tmp << (64 - 12)); b2 -= b1;
    tmp = b1 ^ b0; b1 = (tmp >> 25) | (tmp << (64 - 25)); b0 -= b1 + k3; b1 -= k4 + t0;
    tmp = b3 ^ b2; b3 = (tmp >> 33) | (tmp << (64 - 33)); b2 -= b3 + k0 + t1; b3 -= k1 + 3;
    tmp = b3 ^ b0; b3 = (tmp >> 5) | (tmp << (64 - 5)); b0 -= b3;
    tmp = b1 ^ b2; b1 = (tmp >> 37) | (tmp << (64 - 37)); b2 -= b1;
    tmp = b1 ^ b0; b1 = (tmp >> 23) | (tmp << (64 - 23)); b0 -= b1;
    tmp = b3 ^ b2; b3 = (tmp >> 40) | (tmp << (64 - 40)); b2 -= b3;
    tmp = b3 ^ b0; b3 = (tmp >> 52) | (tmp << (64 - 52)); b0 -= b3;
    tmp = b1 ^ b2; b1 = (tmp >> 57) | (tmp << (64 - 57)); b2 -= b1;
    tmp = b1 ^ b0; b1 = (tmp >> 14) | (tmp << (64 - 14)); b0 -= b1 + k2; b1 -= k3 + t2;
    tmp = b3 ^ b2; b3 = (tmp >> 16) | (tmp << (64 - 16)); b2 -= b3 + k4 + t0; b3 -= k0 + 2;

    tmp = b3 ^ b0; b3 = (tmp >> 32) | (tmp << (64 - 32)); b0 -= b3;
    tmp = b1 ^ b2; b1 = (tmp >> 32) | (tmp << (64 - 32)); b2 -= b1;
    tmp = b1 ^ b0; b1 = (tmp >> 58) | (tmp << (64 - 58)); b0 -= b1;
    tmp = b3 ^ b2; b3 = (tmp >> 22) | (tmp << (64 - 22)); b2 -= b3;
    tmp = b3 ^ b0; b3 = (tmp >> 46) | (tmp << (64 - 46)); b0 -= b3;
    tmp = b1 ^ b2; b1 = (tmp >> 12) | (tmp << (64 - 12)); b2 -= b1;
    tmp = b1 ^ b0; b1 = (tmp >> 25) | (tmp << (64 - 25)); b0 -= b1 + k1; b1 -= k2 + t1;
    tmp = b3 ^ b2; b3 = (tmp >> 33) | (tmp << (64 - 33)); b2 -= b3 + k3 + t2; b3 -= k4 + 1;
    tmp = b3 ^ b0; b3 = (tmp >> 5) | (tmp << (64 - 5)); b0 -= b3;
    tmp = b1 ^ b2; b1 = (tmp >> 37) | (tmp << (64 - 37)); b2 -= b1;
    tmp = b1 ^ b0; b1 = (tmp >> 23) | (tmp << (64 - 23)); b0 -= b1;
    tmp = b3 ^ b2; b3 = (tmp >> 40) | (tmp << (64 - 40)); b2 -= b3;
    tmp = b3 ^ b0; b3 = (tmp >> 52) | (tmp << (64 - 52)); b0 -= b3;
    tmp = b1 ^ b2; b1 = (tmp >> 57) | (tmp << (64 - 57)); b2 -= b1;
    tmp = b1 ^ b0; b1 = (tmp >> 14) | (tmp << (64 - 14)); b0 -= b1 + k0; b1 -= k1 + t0;
    tmp = b3 ^ b2; b3 = (tmp >> 16) | (tmp << (64 - 16)); b2 -= b3 + k2 + t1; b3 -= k3;

    output[0] = b0;
    output[1] = b1;
    output[2] = b2;
    output[3] = b3;
  }