md5

This performs a md5 hash of the input

Created by: hackvertor
Installed 1 times

Category: Hash

Created on: Monday, October 21, 2024 at 11:55:21 AM

Updated on: Thursday, October 31, 2024 at 10:23:54 AM

This is a built in tag
Tag arguments
[]
Code
class md5 {
  encode(input) {
    return md5(input);
    function md5(message) {
      function rotateLeft(lValue, shiftBits) {
        return (lValue << shiftBits) | (lValue >>> (32 - shiftBits));
      }

      function addUnsigned(lX, lY) {
        const lX4 = lX & 0x40000000;
        const lY4 = lY & 0x40000000;
        const lX8 = lX & 0x80000000;
        const lY8 = lY & 0x80000000;
        const lResult = (lX & 0x3fffffff) + (lY & 0x3fffffff);
        if (lX4 & lY4) {
          return lResult ^ 0x80000000 ^ lX8 ^ lY8;
        }
        if (lX4 | lY4) {
          if (lResult & 0x40000000) {
            return lResult ^ 0xc0000000 ^ lX8 ^ lY8;
          } else {
            return lResult ^ 0x40000000 ^ lX8 ^ lY8;
          }
        } else {
          return lResult ^ lX8 ^ lY8;
        }
      }

      function F(x, y, z) {
        return (x & y) | (~x & z);
      }

      function G(x, y, z) {
        return (x & z) | (y & ~z);
      }

      function H(x, y, z) {
        return x ^ y ^ z;
      }

      function I(x, y, z) {
        return y ^ (x | ~z);
      }

      function FF(a, b, c, d, x, s, ac) {
        a = addUnsigned(a, addUnsigned(addUnsigned(F(b, c, d), x), ac));
        return addUnsigned(rotateLeft(a, s), b);
      }

      function GG(a, b, c, d, x, s, ac) {
        a = addUnsigned(a, addUnsigned(addUnsigned(G(b, c, d), x), ac));
        return addUnsigned(rotateLeft(a, s), b);
      }

      function HH(a, b, c, d, x, s, ac) {
        a = addUnsigned(a, addUnsigned(addUnsigned(H(b, c, d), x), ac));
        return addUnsigned(rotateLeft(a, s), b);
      }

      function II(a, b, c, d, x, s, ac) {
        a = addUnsigned(a, addUnsigned(addUnsigned(I(b, c, d), x), ac));
        return addUnsigned(rotateLeft(a, s), b);
      }

      function convertToWordArray(message) {
        let lMessageLength = message.length;
        let lNumberOfWords_temp1 = lMessageLength + 8;
        let lNumberOfWords_temp2 =
          (lNumberOfWords_temp1 - (lNumberOfWords_temp1 % 64)) / 64;
        let lNumberOfWords = (lNumberOfWords_temp2 + 1) * 16;
        let lWordArray = Array(lNumberOfWords - 1);
        let lBytePosition = 0;
        let lByteCount = 0;

        while (lByteCount < lMessageLength) {
          let lWordCount = (lByteCount - (lByteCount % 4)) / 4;
          lBytePosition = (lByteCount % 4) * 8;
          lWordArray[lWordCount] =
            lWordArray[lWordCount] |
            (message.charCodeAt(lByteCount) << lBytePosition);
          lByteCount++;
        }

        let lWordCount = (lByteCount - (lByteCount % 4)) / 4;
        lBytePosition = (lByteCount % 4) * 8;
        lWordArray[lWordCount] =
          lWordArray[lWordCount] | (0x80 << lBytePosition);
        lWordArray[lNumberOfWords - 2] = lMessageLength << 3;
        lWordArray[lNumberOfWords - 1] = lMessageLength >>> 29;
        return lWordArray;
      }

      function wordToHex(lValue) {
        let wordToHexValue = "",
          wordToHexValue_temp = "",
          lByte,
          lCount;
        for (lCount = 0; lCount <= 3; lCount++) {
          lByte = (lValue >>> (lCount * 8)) & 255;
          wordToHexValue_temp = "0" + lByte.toString(16);
          wordToHexValue =
            wordToHexValue +
            wordToHexValue_temp.substr(wordToHexValue_temp.length - 2, 2);
        }
        return wordToHexValue;
      }

      function utf8Encode(string) {
        string = string.replace(/\r\n/g, "\n");
        let utftext = "";

        for (let n = 0; n < string.length; n++) {
          let c = string.charCodeAt(n);
          if (c < 128) {
            utftext += String.fromCharCode(c);
          } else if (c > 127 && c < 2048) {
            utftext += String.fromCharCode((c >> 6) | 192);
            utftext += String.fromCharCode((c & 63) | 128);
          } else {
            utftext += String.fromCharCode((c >> 12) | 224);
            utftext += String.fromCharCode(((c >> 6) & 63) | 128);
            utftext += String.fromCharCode((c & 63) | 128);
          }
        }

        return utftext;
      }

      let x = Array();
      let k, AA, BB, CC, DD, a, b, c, d;
      const S11 = 7,
        S12 = 12,
        S13 = 17,
        S14 = 22;
      const S21 = 5,
        S22 = 9,
        S23 = 14,
        S24 = 20;
      const S31 = 4,
        S32 = 11,
        S33 = 16,
        S34 = 23;
      const S41 = 6,
        S42 = 10,
        S43 = 15,
        S44 = 21;

      message = utf8Encode(message);
      x = convertToWordArray(message);

      a = 0x67452301;
      b = 0xefcdab89;
      c = 0x98badcfe;
      d = 0x10325476;

      for (k = 0; k < x.length; k += 16) {
        AA = a;
        BB = b;
        CC = c;
        DD = d;
        a = FF(a, b, c, d, x[k + 0], S11, 0xd76aa478);
        d = FF(d, a, b, c, x[k + 1], S12, 0xe8c7b756);
        c = FF(c, d, a, b, x[k + 2], S13, 0x242070db);
        b = FF(b, c, d, a, x[k + 3], S14, 0xc1bdceee);
        a = FF(a, b, c, d, x[k + 4], S11, 0xf57c0faf);
        d = FF(d, a, b, c, x[k + 5], S12, 0x4787c62a);
        c = FF(c, d, a, b, x[k + 6], S13, 0xa8304613);
        b = FF(b, c, d, a, x[k + 7], S14, 0xfd469501);
        a = FF(a, b, c, d, x[k + 8], S11, 0x698098d8);
        d = FF(d, a, b, c, x[k + 9], S12, 0x8b44f7af);
        c = FF(c, d, a, b, x[k + 10], S13, 0xffff5bb1);
        b = FF(b, c, d, a, x[k + 11], S14, 0x895cd7be);
        a = FF(a, b, c, d, x[k + 12], S11, 0x6b901122);
        d = FF(d, a, b, c, x[k + 13], S12, 0xfd987193);
        c = FF(c, d, a, b, x[k + 14], S13, 0xa679438e);
        b = FF(b, c, d, a, x[k + 15], S14, 0x49b40821);
        a = GG(a, b, c, d, x[k + 1], S21, 0xf61e2562);
        d = GG(d, a, b, c, x[k + 6], S22, 0xc040b340);
        c = GG(c, d, a, b, x[k + 11], S23, 0x265e5a51);
        b = GG(b, c, d, a, x[k + 0], S24, 0xe9b6c7aa);
        a = GG(a, b, c, d, x[k + 5], S21, 0xd62f105d);
        d = GG(d, a, b, c, x[k + 10], S22, 0x02441453);
        c = GG(c, d, a, b, x[k + 15], S23, 0xd8a1e681);
        b = GG(b, c, d, a, x[k + 4], S24, 0xe7d3fbc8);
        a = GG(a, b, c, d, x[k + 9], S21, 0x21e1cde6);
        d = GG(d, a, b, c, x[k + 14], S22, 0xc33707d6);
        c = GG(c, d, a, b, x[k + 3], S23, 0xf4d50d87);
        b = GG(b, c, d, a, x[k + 8], S24, 0x455a14ed);
        a = GG(a, b, c, d, x[k + 13], S21, 0xa9e3e905);
        d = GG(d, a, b, c, x[k + 2], S22, 0xfcefa3f8);
        c = GG(c, d, a, b, x[k + 7], S23, 0x676f02d9);
        b = GG(b, c, d, a, x[k + 12], S24, 0x8d2a4c8a);
        a = HH(a, b, c, d, x[k + 5], S31, 0xfffa3942);
        d = HH(d, a, b, c, x[k + 8], S32, 0x8771f681);
        c = HH(c, d, a, b, x[k + 11], S33, 0x6d9d6122);
        b = HH(b, c, d, a, x[k + 14], S34, 0xfde5380c);
        a = HH(a, b, c, d, x[k + 1], S31, 0xa4beea44);
        d = HH(d, a, b, c, x[k + 4], S32, 0x4bdecfa9);
        c = HH(c, d, a, b, x[k + 7], S33, 0xf6bb4b60);
        b = HH(b, c, d, a, x[k + 10], S34, 0xbebfbc70);
        a = HH(a, b, c, d, x[k + 13], S31, 0x289b7ec6);
        d = HH(d, a, b, c, x[k + 0], S32, 0xeaa127fa);
        c = HH(c, d, a, b, x[k + 3], S33, 0xd4ef3085);
        b = HH(b, c, d, a, x[k + 6], S34, 0x04881d05);
        a = HH(a, b, c, d, x[k + 9], S31, 0xd9d4d039);
        d = HH(d, a, b, c, x[k + 12], S32, 0xe6db99e5);
        c = HH(c, d, a, b, x[k + 15], S33, 0x1fa27cf8);
        b = HH(b, c, d, a, x[k + 2], S34, 0xc4ac5665);
        a = II(a, b, c, d, x[k + 0], S41, 0xf4292244);
        d = II(d, a, b, c, x[k + 7], S42, 0x432aff97);
        c = II(c, d, a, b, x[k + 14], S43, 0xab9423a7);
        b = II(b, c, d, a, x[k + 5], S44, 0xfc93a039);
        a = II(a, b, c, d, x[k + 12], S41, 0x655b59c3);
        d = II(d, a, b, c, x[k + 3], S42, 0x8f0ccc92);
        c = II(c, d, a, b, x[k + 10], S43, 0xffeff47d);
        b = II(b, c, d, a, x[k + 1], S44, 0x85845dd1);
        a = II(a, b, c, d, x[k + 8], S41, 0x6fa87e4f);
        d = II(d, a, b, c, x[k + 15], S42, 0xfe2ce6e0);
        c = II(c, d, a, b, x[k + 6], S43, 0xa3014314);
        b = II(b, c, d, a, x[k + 13], S44, 0x4e0811a1);
        a = II(a, b, c, d, x[k + 4], S41, 0xf7537e82);
        d = II(d, a, b, c, x[k + 11], S42, 0xbd3af235);
        c = II(c, d, a, b, x[k + 2], S43, 0x2ad7d2bb);
        b = II(b, c, d, a, x[k + 9], S44, 0xeb86d391);
        a = addUnsigned(a, AA);
        b = addUnsigned(b, BB);
        c = addUnsigned(c, CC);
        d = addUnsigned(d, DD);
      }

      const tempValue =
        wordToHex(a) + wordToHex(b) + wordToHex(c) + wordToHex(d);
      return tempValue.toLowerCase();
    }
  }
}