使用JavaScript扩展DESKey

我正在Node.js中实现一个协议。 这个协议在CBC模式下使用3DES加密，好的

但要加密/解密，我需要将14字节的DES密钥扩展到16字节，只需添加奇偶校验位。但是我一直在使用JavaScript/Node.js

我有一些使用C和Python的实现，有谁能帮助我使用JavaScript/Node.js实现同样的功能吗（下面是我的试用版）

使用C实现的输出：

function deskey_spread(normal){
  spread = new Buffer(16);
  spread[ 0] = normal[ 0] & 0xfe;
  spread[ 1] = ((normal[ 0] << 7) | (normal[ 1] >> 1)) & 0xfe;
  spread[ 2] = ((normal[ 1] << 6) | (normal[ 2] >> 2)) & 0xfe;
  spread[ 3] = ((normal[ 2] << 5) | (normal[ 3] >> 3)) & 0xfe;
  spread[ 4] = ((normal[ 3] << 4) | (normal[ 4] >> 4)) & 0xfe;
  spread[ 5] = ((normal[ 4] << 3) | (normal[ 5] >> 5)) & 0xfe;
  spread[ 6] = ((normal[ 5] << 2) | (normal[ 6] >> 6)) & 0xfe;
  spread[ 7] = normal[ 6] << 1;
  spread[ 8] = normal[ 7] & 0xfe;
  spread[ 9] = ((normal[ 7] << 7) | (normal[ 8] >> 1)) & 0xfe;
  spread[10] = ((normal[ 8] << 6) | (normal[ 9] >> 2)) & 0xfe;
  spread[11] = ((normal[ 9] << 5) | (normal[10] >> 3)) & 0xfe;
  spread[12] = ((normal[10] << 4) | (normal[11] >> 4)) & 0xfe;
  spread[13] = ((normal[11] << 3) | (normal[12] >> 5)) & 0xfe;
  spread[14] = ((normal[12] << 2) | (normal[13] >> 6)) & 0xfe;
  spread[15] = normal[13] << 1;

  des_key_parity_adjust(spread, 16);
  return spread;
}

function des_key_parity_adjust(key, len){
    var i = new Buffer(1);
    var j = new Buffer(1);
    var parity = new Buffer(1);
    for (i = 0; i < len; i++){
      parity = 1;
      for (j = 1; j < 8; j++) 
        if ((key[i] >> j) & 0x1) parity = ~parity & 0x01;
      key[i] |= parity;
    }
}

01 80 80 61 40 29 19 0E 08 04 45 02 10 91 4C 29

01 80 80 61 40 29 19 0e 08 04 43 40 b0 61 34 1c

和my Node.js实现：

function deskey_spread(normal){
  spread = new Buffer(16);
  spread[ 0] = normal[ 0] & 0xfe;
  spread[ 1] = ((normal[ 0] << 7) | (normal[ 1] >> 1)) & 0xfe;
  spread[ 2] = ((normal[ 1] << 6) | (normal[ 2] >> 2)) & 0xfe;
  spread[ 3] = ((normal[ 2] << 5) | (normal[ 3] >> 3)) & 0xfe;
  spread[ 4] = ((normal[ 3] << 4) | (normal[ 4] >> 4)) & 0xfe;
  spread[ 5] = ((normal[ 4] << 3) | (normal[ 5] >> 5)) & 0xfe;
  spread[ 6] = ((normal[ 5] << 2) | (normal[ 6] >> 6)) & 0xfe;
  spread[ 7] = normal[ 6] << 1;
  spread[ 8] = normal[ 7] & 0xfe;
  spread[ 9] = ((normal[ 7] << 7) | (normal[ 8] >> 1)) & 0xfe;
  spread[10] = ((normal[ 8] << 6) | (normal[ 9] >> 2)) & 0xfe;
  spread[11] = ((normal[ 9] << 5) | (normal[10] >> 3)) & 0xfe;
  spread[12] = ((normal[10] << 4) | (normal[11] >> 4)) & 0xfe;
  spread[13] = ((normal[11] << 3) | (normal[12] >> 5)) & 0xfe;
  spread[14] = ((normal[12] << 2) | (normal[13] >> 6)) & 0xfe;
  spread[15] = normal[13] << 1;

  des_key_parity_adjust(spread, 16);
  return spread;
}

function des_key_parity_adjust(key, len){
    var i = new Buffer(1);
    var j = new Buffer(1);
    var parity = new Buffer(1);
    for (i = 0; i < len; i++){
      parity = 1;
      for (j = 1; j < 8; j++) 
        if ((key[i] >> j) & 0x1) parity = ~parity & 0x01;
      key[i] |= parity;
    }
}

01 80 80 61 40 29 19 0E 08 04 45 02 10 91 4C 29

01 80 80 61 40 29 19 0e 08 04 43 40 b0 61 34 1c

---

怎么了/

代码正确且工作正常

问题是输入，我使用的是普通数组，而不是缓冲区

使用缓冲区，代码可以正常工作

输入：

01 80 80 61 40 29 19 0E 08 04 45 02 10 91 4C 29

使用C代码：

01 80 80 61 40 29 19 0E 08 04 45 02 10 91 4C 29

使用my Node.js实现

01 80 80 61 40 29 19 0E 08 04 45 02 10 91 4C 29

谢谢