grantglidewell/index.html

## index.html
<!DOCTYPE html>
<html lang="en">
<head>
    <script src="index.js"></script>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>fingerprinting</title>
</head>
<body>
    <div id="print-id-here">check the console, something went wrong :/</div>
    <script>const printDiv = document.getElementById("print-id-here"); printDiv.innerText = window.FINGERPRINT</script>
</body>
</html>

## index.js
// This is a dependency free SHA hashing function.
(function () {
  'use strict';

  var ERROR = 'input is invalid type';
  var WINDOW = typeof window === 'object';
  var root = WINDOW ? window : {};
  if (root.JS_SHA256_NO_WINDOW) {
    WINDOW = false;
  }
  var WEB_WORKER = !WINDOW && typeof self === 'object';
  var NODE_JS = !root.JS_SHA256_NO_NODE_JS && typeof process === 'object' && process.versions && process.versions.node;
  if (NODE_JS) {
    root = global;
  } else if (WEB_WORKER) {
    root = self;
  }
  var COMMON_JS = !root.JS_SHA256_NO_COMMON_JS && typeof module === 'object' && module.exports;
  var AMD = typeof define === 'function' && define.amd;
  var ARRAY_BUFFER = !root.JS_SHA256_NO_ARRAY_BUFFER && typeof ArrayBuffer !== 'undefined';
  var HEX_CHARS = '0123456789abcdef'.split('');
  var EXTRA = [-2147483648, 8388608, 32768, 128];
  var SHIFT = [24, 16, 8, 0];
  var K = [
    0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
    0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
    0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
    0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
    0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
    0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
    0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
    0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
  ];
  var OUTPUT_TYPES = ['hex', 'array', 'digest', 'arrayBuffer'];

  var blocks = [];

  if (root.JS_SHA256_NO_NODE_JS || !Array.isArray) {
    Array.isArray = function (obj) {
      return Object.prototype.toString.call(obj) === '[object Array]';
    };
  }

  if (ARRAY_BUFFER && (root.JS_SHA256_NO_ARRAY_BUFFER_IS_VIEW || !ArrayBuffer.isView)) {
    ArrayBuffer.isView = function (obj) {
      return typeof obj === 'object' && obj.buffer && obj.buffer.constructor === ArrayBuffer;
    };
  }

  var createOutputMethod = function (outputType, is224) {
    return function (message) {
      return new Sha256(is224, true).update(message)[outputType]();
    };
  };

  var createMethod = function (is224) {
    var method = createOutputMethod('hex', is224);
    if (NODE_JS) {
      method = nodeWrap(method, is224);
    }
    method.create = function () {
      return new Sha256(is224);
    };
    method.update = function (message) {
      return method.create().update(message);
    };
    for (var i = 0; i < OUTPUT_TYPES.length; ++i) {
      var type = OUTPUT_TYPES[i];
      method[type] = createOutputMethod(type, is224);
    }
    return method;
  };

  var nodeWrap = function (method, is224) {
    var crypto = eval("require('crypto')");
    var Buffer = eval("require('buffer').Buffer");
    var algorithm = is224 ? 'sha224' : 'sha256';
    var nodeMethod = function (message) {
      if (typeof message === 'string') {
        return crypto.createHash(algorithm).update(message, 'utf8').digest('hex');
      } else {
        if (message === null || message === undefined) {
          throw new Error(ERROR);
        } else if (message.constructor === ArrayBuffer) {
          message = new Uint8Array(message);
        }
      }
      if (Array.isArray(message) || ArrayBuffer.isView(message) ||
        message.constructor === Buffer) {
        return crypto.createHash(algorithm).update(new Buffer(message)).digest('hex');
      } else {
        return method(message);
      }
    };
    return nodeMethod;
  };

  var createHmacOutputMethod = function (outputType, is224) {
    return function (key, message) {
      return new HmacSha256(key, is224, true).update(message)[outputType]();
    };
  };

  var createHmacMethod = function (is224) {
    var method = createHmacOutputMethod('hex', is224);
    method.create = function (key) {
      return new HmacSha256(key, is224);
    };
    method.update = function (key, message) {
      return method.create(key).update(message);
    };
    for (var i = 0; i < OUTPUT_TYPES.length; ++i) {
      var type = OUTPUT_TYPES[i];
      method[type] = createHmacOutputMethod(type, is224);
    }
    return method;
  };

  function Sha256(is224, sharedMemory) {
    if (sharedMemory) {
      blocks[0] = blocks[16] = blocks[1] = blocks[2] = blocks[3] =
        blocks[4] = blocks[5] = blocks[6] = blocks[7] =
        blocks[8] = blocks[9] = blocks[10] = blocks[11] =
        blocks[12] = blocks[13] = blocks[14] = blocks[15] = 0;
      this.blocks = blocks;
    } else {
      this.blocks = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0];
    }

    if (is224) {
      this.h0 = 0xc1059ed8;
      this.h1 = 0x367cd507;
      this.h2 = 0x3070dd17;
      this.h3 = 0xf70e5939;
      this.h4 = 0xffc00b31;
      this.h5 = 0x68581511;
      this.h6 = 0x64f98fa7;
      this.h7 = 0xbefa4fa4;
    } else { // 256
      this.h0 = 0x6a09e667;
      this.h1 = 0xbb67ae85;
      this.h2 = 0x3c6ef372;
      this.h3 = 0xa54ff53a;
      this.h4 = 0x510e527f;
      this.h5 = 0x9b05688c;
      this.h6 = 0x1f83d9ab;
      this.h7 = 0x5be0cd19;
    }

    this.block = this.start = this.bytes = this.hBytes = 0;
    this.finalized = this.hashed = false;
    this.first = true;
    this.is224 = is224;
  }

  Sha256.prototype.update = function (message) {
    if (this.finalized) {
      return;
    }
    var notString, type = typeof message;
    if (type !== 'string') {
      if (type === 'object') {
        if (message === null) {
          throw new Error(ERROR);
        } else if (ARRAY_BUFFER && message.constructor === ArrayBuffer) {
          message = new Uint8Array(message);
        } else if (!Array.isArray(message)) {
          if (!ARRAY_BUFFER || !ArrayBuffer.isView(message)) {
            throw new Error(ERROR);
          }
        }
      } else {
        throw new Error(ERROR);
      }
      notString = true;
    }
    var code, index = 0, i, length = message.length, blocks = this.blocks;

    while (index < length) {
      if (this.hashed) {
        this.hashed = false;
        blocks[0] = this.block;
        blocks[16] = blocks[1] = blocks[2] = blocks[3] =
          blocks[4] = blocks[5] = blocks[6] = blocks[7] =
          blocks[8] = blocks[9] = blocks[10] = blocks[11] =
          blocks[12] = blocks[13] = blocks[14] = blocks[15] = 0;
      }

      if (notString) {
        for (i = this.start; index < length && i < 64; ++index) {
          blocks[i >> 2] |= message[index] << SHIFT[i++ & 3];
        }
      } else {
        for (i = this.start; index < length && i < 64; ++index) {
          code = message.charCodeAt(index);
          if (code < 0x80) {
            blocks[i >> 2] |= code << SHIFT[i++ & 3];
          } else if (code < 0x800) {
            blocks[i >> 2] |= (0xc0 | (code >> 6)) << SHIFT[i++ & 3];
            blocks[i >> 2] |= (0x80 | (code & 0x3f)) << SHIFT[i++ & 3];
          } else if (code < 0xd800 || code >= 0xe000) {
            blocks[i >> 2] |= (0xe0 | (code >> 12)) << SHIFT[i++ & 3];
            blocks[i >> 2] |= (0x80 | ((code >> 6) & 0x3f)) << SHIFT[i++ & 3];
            blocks[i >> 2] |= (0x80 | (code & 0x3f)) << SHIFT[i++ & 3];
          } else {
            code = 0x10000 + (((code & 0x3ff) << 10) | (message.charCodeAt(++index) & 0x3ff));
            blocks[i >> 2] |= (0xf0 | (code >> 18)) << SHIFT[i++ & 3];
            blocks[i >> 2] |= (0x80 | ((code >> 12) & 0x3f)) << SHIFT[i++ & 3];
            blocks[i >> 2] |= (0x80 | ((code >> 6) & 0x3f)) << SHIFT[i++ & 3];
            blocks[i >> 2] |= (0x80 | (code & 0x3f)) << SHIFT[i++ & 3];
          }
        }
      }

      this.lastByteIndex = i;
      this.bytes += i - this.start;
      if (i >= 64) {
        this.block = blocks[16];
        this.start = i - 64;
        this.hash();
        this.hashed = true;
      } else {
        this.start = i;
      }
    }
    if (this.bytes > 4294967295) {
      this.hBytes += this.bytes / 4294967296 << 0;
      this.bytes = this.bytes % 4294967296;
    }
    return this;
  };

  Sha256.prototype.finalize = function () {
    if (this.finalized) {
      return;
    }
    this.finalized = true;
    var blocks = this.blocks, i = this.lastByteIndex;
    blocks[16] = this.block;
    blocks[i >> 2] |= EXTRA[i & 3];
    this.block = blocks[16];
    if (i >= 56) {
      if (!this.hashed) {
        this.hash();
      }
      blocks[0] = this.block;
      blocks[16] = blocks[1] = blocks[2] = blocks[3] =
        blocks[4] = blocks[5] = blocks[6] = blocks[7] =
        blocks[8] = blocks[9] = blocks[10] = blocks[11] =
        blocks[12] = blocks[13] = blocks[14] = blocks[15] = 0;
    }
    blocks[14] = this.hBytes << 3 | this.bytes >>> 29;
    blocks[15] = this.bytes << 3;
    this.hash();
  };

  Sha256.prototype.hash = function () {
    var a = this.h0, b = this.h1, c = this.h2, d = this.h3, e = this.h4, f = this.h5, g = this.h6,
      h = this.h7, blocks = this.blocks, j, s0, s1, maj, t1, t2, ch, ab, da, cd, bc;

    for (j = 16; j < 64; ++j) {
      // rightrotate
      t1 = blocks[j - 15];
      s0 = ((t1 >>> 7) | (t1 << 25)) ^ ((t1 >>> 18) | (t1 << 14)) ^ (t1 >>> 3);
      t1 = blocks[j - 2];
      s1 = ((t1 >>> 17) | (t1 << 15)) ^ ((t1 >>> 19) | (t1 << 13)) ^ (t1 >>> 10);
      blocks[j] = blocks[j - 16] + s0 + blocks[j - 7] + s1 << 0;
    }

    bc = b & c;
    for (j = 0; j < 64; j += 4) {
      if (this.first) {
        if (this.is224) {
          ab = 300032;
          t1 = blocks[0] - 1413257819;
          h = t1 - 150054599 << 0;
          d = t1 + 24177077 << 0;
        } else {
          ab = 704751109;
          t1 = blocks[0] - 210244248;
          h = t1 - 1521486534 << 0;
          d = t1 + 143694565 << 0;
        }
        this.first = false;
      } else {
        s0 = ((a >>> 2) | (a << 30)) ^ ((a >>> 13) | (a << 19)) ^ ((a >>> 22) | (a << 10));
        s1 = ((e >>> 6) | (e << 26)) ^ ((e >>> 11) | (e << 21)) ^ ((e >>> 25) | (e << 7));
        ab = a & b;
        maj = ab ^ (a & c) ^ bc;
        ch = (e & f) ^ (~e & g);
        t1 = h + s1 + ch + K[j] + blocks[j];
        t2 = s0 + maj;
        h = d + t1 << 0;
        d = t1 + t2 << 0;
      }
      s0 = ((d >>> 2) | (d << 30)) ^ ((d >>> 13) | (d << 19)) ^ ((d >>> 22) | (d << 10));
      s1 = ((h >>> 6) | (h << 26)) ^ ((h >>> 11) | (h << 21)) ^ ((h >>> 25) | (h << 7));
      da = d & a;
      maj = da ^ (d & b) ^ ab;
      ch = (h & e) ^ (~h & f);
      t1 = g + s1 + ch + K[j + 1] + blocks[j + 1];
      t2 = s0 + maj;
      g = c + t1 << 0;
      c = t1 + t2 << 0;
      s0 = ((c >>> 2) | (c << 30)) ^ ((c >>> 13) | (c << 19)) ^ ((c >>> 22) | (c << 10));
      s1 = ((g >>> 6) | (g << 26)) ^ ((g >>> 11) | (g << 21)) ^ ((g >>> 25) | (g << 7));
      cd = c & d;
      maj = cd ^ (c & a) ^ da;
      ch = (g & h) ^ (~g & e);
      t1 = f + s1 + ch + K[j + 2] + blocks[j + 2];
      t2 = s0 + maj;
      f = b + t1 << 0;
      b = t1 + t2 << 0;
      s0 = ((b >>> 2) | (b << 30)) ^ ((b >>> 13) | (b << 19)) ^ ((b >>> 22) | (b << 10));
      s1 = ((f >>> 6) | (f << 26)) ^ ((f >>> 11) | (f << 21)) ^ ((f >>> 25) | (f << 7));
      bc = b & c;
      maj = bc ^ (b & d) ^ cd;
      ch = (f & g) ^ (~f & h);
      t1 = e + s1 + ch + K[j + 3] + blocks[j + 3];
      t2 = s0 + maj;
      e = a + t1 << 0;
      a = t1 + t2 << 0;
    }

    this.h0 = this.h0 + a << 0;
    this.h1 = this.h1 + b << 0;
    this.h2 = this.h2 + c << 0;
    this.h3 = this.h3 + d << 0;
    this.h4 = this.h4 + e << 0;
    this.h5 = this.h5 + f << 0;
    this.h6 = this.h6 + g << 0;
    this.h7 = this.h7 + h << 0;
  };

  Sha256.prototype.hex = function () {
    this.finalize();

    var h0 = this.h0, h1 = this.h1, h2 = this.h2, h3 = this.h3, h4 = this.h4, h5 = this.h5,
      h6 = this.h6, h7 = this.h7;

    var hex = HEX_CHARS[(h0 >> 28) & 0x0F] + HEX_CHARS[(h0 >> 24) & 0x0F] +
      HEX_CHARS[(h0 >> 20) & 0x0F] + HEX_CHARS[(h0 >> 16) & 0x0F] +
      HEX_CHARS[(h0 >> 12) & 0x0F] + HEX_CHARS[(h0 >> 8) & 0x0F] +
      HEX_CHARS[(h0 >> 4) & 0x0F] + HEX_CHARS[h0 & 0x0F] +
      HEX_CHARS[(h1 >> 28) & 0x0F] + HEX_CHARS[(h1 >> 24) & 0x0F] +
      HEX_CHARS[(h1 >> 20) & 0x0F] + HEX_CHARS[(h1 >> 16) & 0x0F] +
      HEX_CHARS[(h1 >> 12) & 0x0F] + HEX_CHARS[(h1 >> 8) & 0x0F] +
      HEX_CHARS[(h1 >> 4) & 0x0F] + HEX_CHARS[h1 & 0x0F] +
      HEX_CHARS[(h2 >> 28) & 0x0F] + HEX_CHARS[(h2 >> 24) & 0x0F] +
      HEX_CHARS[(h2 >> 20) & 0x0F] + HEX_CHARS[(h2 >> 16) & 0x0F] +
      HEX_CHARS[(h2 >> 12) & 0x0F] + HEX_CHARS[(h2 >> 8) & 0x0F] +
      HEX_CHARS[(h2 >> 4) & 0x0F] + HEX_CHARS[h2 & 0x0F] +
      HEX_CHARS[(h3 >> 28) & 0x0F] + HEX_CHARS[(h3 >> 24) & 0x0F] +
      HEX_CHARS[(h3 >> 20) & 0x0F] + HEX_CHARS[(h3 >> 16) & 0x0F] +
      HEX_CHARS[(h3 >> 12) & 0x0F] + HEX_CHARS[(h3 >> 8) & 0x0F] +
      HEX_CHARS[(h3 >> 4) & 0x0F] + HEX_CHARS[h3 & 0x0F] +
      HEX_CHARS[(h4 >> 28) & 0x0F] + HEX_CHARS[(h4 >> 24) & 0x0F] +
      HEX_CHARS[(h4 >> 20) & 0x0F] + HEX_CHARS[(h4 >> 16) & 0x0F] +
      HEX_CHARS[(h4 >> 12) & 0x0F] + HEX_CHARS[(h4 >> 8) & 0x0F] +
      HEX_CHARS[(h4 >> 4) & 0x0F] + HEX_CHARS[h4 & 0x0F] +
      HEX_CHARS[(h5 >> 28) & 0x0F] + HEX_CHARS[(h5 >> 24) & 0x0F] +
      HEX_CHARS[(h5 >> 20) & 0x0F] + HEX_CHARS[(h5 >> 16) & 0x0F] +
      HEX_CHARS[(h5 >> 12) & 0x0F] + HEX_CHARS[(h5 >> 8) & 0x0F] +
      HEX_CHARS[(h5 >> 4) & 0x0F] + HEX_CHARS[h5 & 0x0F] +
      HEX_CHARS[(h6 >> 28) & 0x0F] + HEX_CHARS[(h6 >> 24) & 0x0F] +
      HEX_CHARS[(h6 >> 20) & 0x0F] + HEX_CHARS[(h6 >> 16) & 0x0F] +
      HEX_CHARS[(h6 >> 12) & 0x0F] + HEX_CHARS[(h6 >> 8) & 0x0F] +
      HEX_CHARS[(h6 >> 4) & 0x0F] + HEX_CHARS[h6 & 0x0F];
    if (!this.is224) {
      hex += HEX_CHARS[(h7 >> 28) & 0x0F] + HEX_CHARS[(h7 >> 24) & 0x0F] +
        HEX_CHARS[(h7 >> 20) & 0x0F] + HEX_CHARS[(h7 >> 16) & 0x0F] +
        HEX_CHARS[(h7 >> 12) & 0x0F] + HEX_CHARS[(h7 >> 8) & 0x0F] +
        HEX_CHARS[(h7 >> 4) & 0x0F] + HEX_CHARS[h7 & 0x0F];
    }
    return hex;
  };

  Sha256.prototype.toString = Sha256.prototype.hex;

  Sha256.prototype.digest = function () {
    this.finalize();

    var h0 = this.h0, h1 = this.h1, h2 = this.h2, h3 = this.h3, h4 = this.h4, h5 = this.h5,
      h6 = this.h6, h7 = this.h7;

    var arr = [
      (h0 >> 24) & 0xFF, (h0 >> 16) & 0xFF, (h0 >> 8) & 0xFF, h0 & 0xFF,
      (h1 >> 24) & 0xFF, (h1 >> 16) & 0xFF, (h1 >> 8) & 0xFF, h1 & 0xFF,
      (h2 >> 24) & 0xFF, (h2 >> 16) & 0xFF, (h2 >> 8) & 0xFF, h2 & 0xFF,
      (h3 >> 24) & 0xFF, (h3 >> 16) & 0xFF, (h3 >> 8) & 0xFF, h3 & 0xFF,
      (h4 >> 24) & 0xFF, (h4 >> 16) & 0xFF, (h4 >> 8) & 0xFF, h4 & 0xFF,
      (h5 >> 24) & 0xFF, (h5 >> 16) & 0xFF, (h5 >> 8) & 0xFF, h5 & 0xFF,
      (h6 >> 24) & 0xFF, (h6 >> 16) & 0xFF, (h6 >> 8) & 0xFF, h6 & 0xFF
    ];
    if (!this.is224) {
      arr.push((h7 >> 24) & 0xFF, (h7 >> 16) & 0xFF, (h7 >> 8) & 0xFF, h7 & 0xFF);
    }
    return arr;
  };

  Sha256.prototype.array = Sha256.prototype.digest;

  Sha256.prototype.arrayBuffer = function () {
    this.finalize();

    var buffer = new ArrayBuffer(this.is224 ? 28 : 32);
    var dataView = new DataView(buffer);
    dataView.setUint32(0, this.h0);
    dataView.setUint32(4, this.h1);
    dataView.setUint32(8, this.h2);
    dataView.setUint32(12, this.h3);
    dataView.setUint32(16, this.h4);
    dataView.setUint32(20, this.h5);
    dataView.setUint32(24, this.h6);
    if (!this.is224) {
      dataView.setUint32(28, this.h7);
    }
    return buffer;
  };

  function HmacSha256(key, is224, sharedMemory) {
    var i, type = typeof key;
    if (type === 'string') {
      var bytes = [], length = key.length, index = 0, code;
      for (i = 0; i < length; ++i) {
        code = key.charCodeAt(i);
        if (code < 0x80) {
          bytes[index++] = code;
        } else if (code < 0x800) {
          bytes[index++] = (0xc0 | (code >> 6));
          bytes[index++] = (0x80 | (code & 0x3f));
        } else if (code < 0xd800 || code >= 0xe000) {
          bytes[index++] = (0xe0 | (code >> 12));
          bytes[index++] = (0x80 | ((code >> 6) & 0x3f));
          bytes[index++] = (0x80 | (code & 0x3f));
        } else {
          code = 0x10000 + (((code & 0x3ff) << 10) | (key.charCodeAt(++i) & 0x3ff));
          bytes[index++] = (0xf0 | (code >> 18));
          bytes[index++] = (0x80 | ((code >> 12) & 0x3f));
          bytes[index++] = (0x80 | ((code >> 6) & 0x3f));
          bytes[index++] = (0x80 | (code & 0x3f));
        }
      }
      key = bytes;
    } else {
      if (type === 'object') {
        if (key === null) {
          throw new Error(ERROR);
        } else if (ARRAY_BUFFER && key.constructor === ArrayBuffer) {
          key = new Uint8Array(key);
        } else if (!Array.isArray(key)) {
          if (!ARRAY_BUFFER || !ArrayBuffer.isView(key)) {
            throw new Error(ERROR);
          }
        }
      } else {
        throw new Error(ERROR);
      }
    }

    if (key.length > 64) {
      key = (new Sha256(is224, true)).update(key).array();
    }

    var oKeyPad = [], iKeyPad = [];
    for (i = 0; i < 64; ++i) {
      var b = key[i] || 0;
      oKeyPad[i] = 0x5c ^ b;
      iKeyPad[i] = 0x36 ^ b;
    }

    Sha256.call(this, is224, sharedMemory);

    this.update(iKeyPad);
    this.oKeyPad = oKeyPad;
    this.inner = true;
    this.sharedMemory = sharedMemory;
  }
  HmacSha256.prototype = new Sha256();

  HmacSha256.prototype.finalize = function () {
    Sha256.prototype.finalize.call(this);
    if (this.inner) {
      this.inner = false;
      var innerHash = this.array();
      Sha256.call(this, this.is224, this.sharedMemory);
      this.update(this.oKeyPad);
      this.update(innerHash);
      Sha256.prototype.finalize.call(this);
    }
  };

  var exports = createMethod();
  exports.sha256 = exports;
  exports.sha224 = createMethod(true);
  exports.sha256.hmac = createHmacMethod();
  exports.sha224.hmac = createHmacMethod(true);

  if (COMMON_JS) {
    module.exports = exports;
  } else {
    root.sha256 = exports.sha256;
    root.sha224 = exports.sha224;
    if (AMD) {
      define(function () {
        return exports;
      });
    }
  }
})()

// Crypto getRandomValues supported in modern browsers https://developer.mozilla.org/en-US/docs/Web/API/Crypto/getRandomValues
function uuidv4() {
  return ([1e7] + -1e3 + -4e3 + -8e3 + -1e11).replace(/[018]/g, c =>
    (c ^ crypto.getRandomValues(new Uint8Array(1))[0] & 15 >> c / 4).toString(16)
  )
}

const getBrowserFingerPrint = () => {
  const canvas = document.createElement('canvas');
  canvas.width = 256;
  canvas.height = 24;
  const context = canvas.getContext('2d');
  const textContent = 'Maybe a <Less Evil> fingerprint?';
  if (!context) {
    return uuidv4();
  }
  context.textBaseline = 'middle';
  context.font = '14px "Arial"';
  context.textBaseline = 'alphabetic';
  context.fillStyle = 'rgb(255, 102, 0)';
  context.fillRect(canvas.width / 4, 0, canvas.width / 2, canvas.height);
  context.fillStyle = 'rgb(0, 102, 153)';
  context.fillText(textContent, 2, 15);
  context.fillStyle = 'rgb(102, 204, 0)';
  context.fillText(textContent, 4, 17);
  const contextBuffer = context.getImageData(0, 0, canvas.width, canvas.height)
    .data.buffer;
  return sha256.create().update(
    String.fromCharCode.apply(null, Array.from(new Uint16Array(contextBuffer))),
  ).toString();
};

// Make the fingerprint accessible
window.FINGERPRINT=getBrowserFingerPrint();
	<!DOCTYPE html>
	<html lang="en">
	<head>
	<script src="index.js"></script>
	<meta charset="UTF-8">
	<meta name="viewport" content="width=device-width, initial-scale=1.0">
	<title>fingerprinting</title>
	</head>
	<body>
	<div id="print-id-here">check the console, something went wrong :/</div>
	<script>const printDiv = document.getElementById("print-id-here"); printDiv.innerText = window.FINGERPRINT</script>
	</body>
	</html>
	// This is a dependency free SHA hashing function.
	(function () {
	'use strict';

	var ERROR = 'input is invalid type';
	var WINDOW = typeof window === 'object';
	var root = WINDOW ? window : {};
	if (root.JS_SHA256_NO_WINDOW) {
	WINDOW = false;
	}
	var WEB_WORKER = !WINDOW && typeof self === 'object';
	var NODE_JS = !root.JS_SHA256_NO_NODE_JS && typeof process === 'object' && process.versions && process.versions.node;
	if (NODE_JS) {
	root = global;
	} else if (WEB_WORKER) {
	root = self;
	}
	var COMMON_JS = !root.JS_SHA256_NO_COMMON_JS && typeof module === 'object' && module.exports;
	var AMD = typeof define === 'function' && define.amd;
	var ARRAY_BUFFER = !root.JS_SHA256_NO_ARRAY_BUFFER && typeof ArrayBuffer !== 'undefined';
	var HEX_CHARS = '0123456789abcdef'.split('');
	var EXTRA = [-2147483648, 8388608, 32768, 128];
	var SHIFT = [24, 16, 8, 0];
	var K = [
	0x428a2f98, 0x71374491, 0xb5c0fbcf, 0xe9b5dba5, 0x3956c25b, 0x59f111f1, 0x923f82a4, 0xab1c5ed5,
	0xd807aa98, 0x12835b01, 0x243185be, 0x550c7dc3, 0x72be5d74, 0x80deb1fe, 0x9bdc06a7, 0xc19bf174,
	0xe49b69c1, 0xefbe4786, 0x0fc19dc6, 0x240ca1cc, 0x2de92c6f, 0x4a7484aa, 0x5cb0a9dc, 0x76f988da,
	0x983e5152, 0xa831c66d, 0xb00327c8, 0xbf597fc7, 0xc6e00bf3, 0xd5a79147, 0x06ca6351, 0x14292967,
	0x27b70a85, 0x2e1b2138, 0x4d2c6dfc, 0x53380d13, 0x650a7354, 0x766a0abb, 0x81c2c92e, 0x92722c85,
	0xa2bfe8a1, 0xa81a664b, 0xc24b8b70, 0xc76c51a3, 0xd192e819, 0xd6990624, 0xf40e3585, 0x106aa070,
	0x19a4c116, 0x1e376c08, 0x2748774c, 0x34b0bcb5, 0x391c0cb3, 0x4ed8aa4a, 0x5b9cca4f, 0x682e6ff3,
	0x748f82ee, 0x78a5636f, 0x84c87814, 0x8cc70208, 0x90befffa, 0xa4506ceb, 0xbef9a3f7, 0xc67178f2
	];
	var OUTPUT_TYPES = ['hex', 'array', 'digest', 'arrayBuffer'];

	var blocks = [];

	if (root.JS_SHA256_NO_NODE_JS \|\| !Array.isArray) {
	Array.isArray = function (obj) {
	return Object.prototype.toString.call(obj) === '[object Array]';
	};
	}

	if (ARRAY_BUFFER && (root.JS_SHA256_NO_ARRAY_BUFFER_IS_VIEW \|\| !ArrayBuffer.isView)) {
	ArrayBuffer.isView = function (obj) {
	return typeof obj === 'object' && obj.buffer && obj.buffer.constructor === ArrayBuffer;
	};
	}

	var createOutputMethod = function (outputType, is224) {
	return function (message) {
	return new Sha256(is224, true).update(message)[outputType]();
	};
	};

	var createMethod = function (is224) {
	var method = createOutputMethod('hex', is224);
	if (NODE_JS) {
	method = nodeWrap(method, is224);
	}
	method.create = function () {
	return new Sha256(is224);
	};
	method.update = function (message) {
	return method.create().update(message);
	};
	for (var i = 0; i < OUTPUT_TYPES.length; ++i) {
	var type = OUTPUT_TYPES[i];
	method[type] = createOutputMethod(type, is224);
	}
	return method;
	};

	var nodeWrap = function (method, is224) {
	var crypto = eval("require('crypto')");
	var Buffer = eval("require('buffer').Buffer");
	var algorithm = is224 ? 'sha224' : 'sha256';
	var nodeMethod = function (message) {
	if (typeof message === 'string') {
	return crypto.createHash(algorithm).update(message, 'utf8').digest('hex');
	} else {
	if (message === null \|\| message === undefined) {
	throw new Error(ERROR);
	} else if (message.constructor === ArrayBuffer) {
	message = new Uint8Array(message);
	}
	}
	if (Array.isArray(message) \|\| ArrayBuffer.isView(message) \|\|
	message.constructor === Buffer) {
	return crypto.createHash(algorithm).update(new Buffer(message)).digest('hex');
	} else {
	return method(message);
	}
	};
	return nodeMethod;
	};

	var createHmacOutputMethod = function (outputType, is224) {
	return function (key, message) {
	return new HmacSha256(key, is224, true).update(message)[outputType]();
	};
	};

	var createHmacMethod = function (is224) {
	var method = createHmacOutputMethod('hex', is224);
	method.create = function (key) {
	return new HmacSha256(key, is224);
	};
	method.update = function (key, message) {
	return method.create(key).update(message);
	};
	for (var i = 0; i < OUTPUT_TYPES.length; ++i) {
	var type = OUTPUT_TYPES[i];
	method[type] = createHmacOutputMethod(type, is224);
	}
	return method;
	};

	function Sha256(is224, sharedMemory) {
	if (sharedMemory) {
	blocks[0] = blocks[16] = blocks[1] = blocks[2] = blocks[3] =
	blocks[4] = blocks[5] = blocks[6] = blocks[7] =
	blocks[8] = blocks[9] = blocks[10] = blocks[11] =
	blocks[12] = blocks[13] = blocks[14] = blocks[15] = 0;
	this.blocks = blocks;
	} else {
	this.blocks = [0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0];
	}

	if (is224) {
	this.h0 = 0xc1059ed8;
	this.h1 = 0x367cd507;
	this.h2 = 0x3070dd17;
	this.h3 = 0xf70e5939;
	this.h4 = 0xffc00b31;
	this.h5 = 0x68581511;
	this.h6 = 0x64f98fa7;
	this.h7 = 0xbefa4fa4;
	} else { // 256
	this.h0 = 0x6a09e667;
	this.h1 = 0xbb67ae85;
	this.h2 = 0x3c6ef372;
	this.h3 = 0xa54ff53a;
	this.h4 = 0x510e527f;
	this.h5 = 0x9b05688c;
	this.h6 = 0x1f83d9ab;
	this.h7 = 0x5be0cd19;
	}

	this.block = this.start = this.bytes = this.hBytes = 0;
	this.finalized = this.hashed = false;
	this.first = true;
	this.is224 = is224;
	}

	Sha256.prototype.update = function (message) {
	if (this.finalized) {
	return;
	}
	var notString, type = typeof message;
	if (type !== 'string') {
	if (type === 'object') {
	if (message === null) {
	throw new Error(ERROR);
	} else if (ARRAY_BUFFER && message.constructor === ArrayBuffer) {
	message = new Uint8Array(message);
	} else if (!Array.isArray(message)) {
	if (!ARRAY_BUFFER \|\| !ArrayBuffer.isView(message)) {
	throw new Error(ERROR);
	}
	}
	} else {
	throw new Error(ERROR);
	}
	notString = true;
	}
	var code, index = 0, i, length = message.length, blocks = this.blocks;

	while (index < length) {
	if (this.hashed) {
	this.hashed = false;
	blocks[0] = this.block;
	blocks[16] = blocks[1] = blocks[2] = blocks[3] =
	blocks[4] = blocks[5] = blocks[6] = blocks[7] =
	blocks[8] = blocks[9] = blocks[10] = blocks[11] =
	blocks[12] = blocks[13] = blocks[14] = blocks[15] = 0;
	}

	if (notString) {
	for (i = this.start; index < length && i < 64; ++index) {
	blocks[i >> 2] \|= message[index] << SHIFT[i++ & 3];
	}
	} else {
	for (i = this.start; index < length && i < 64; ++index) {
	code = message.charCodeAt(index);
	if (code < 0x80) {
	blocks[i >> 2] \|= code << SHIFT[i++ & 3];
	} else if (code < 0x800) {
	blocks[i >> 2] \|= (0xc0 \| (code >> 6)) << SHIFT[i++ & 3];
	blocks[i >> 2] \|= (0x80 \| (code & 0x3f)) << SHIFT[i++ & 3];
	} else if (code < 0xd800 \|\| code >= 0xe000) {
	blocks[i >> 2] \|= (0xe0 \| (code >> 12)) << SHIFT[i++ & 3];
	blocks[i >> 2] \|= (0x80 \| ((code >> 6) & 0x3f)) << SHIFT[i++ & 3];
	blocks[i >> 2] \|= (0x80 \| (code & 0x3f)) << SHIFT[i++ & 3];
	} else {
	code = 0x10000 + (((code & 0x3ff) << 10) \| (message.charCodeAt(++index) & 0x3ff));
	blocks[i >> 2] \|= (0xf0 \| (code >> 18)) << SHIFT[i++ & 3];
	blocks[i >> 2] \|= (0x80 \| ((code >> 12) & 0x3f)) << SHIFT[i++ & 3];
	blocks[i >> 2] \|= (0x80 \| ((code >> 6) & 0x3f)) << SHIFT[i++ & 3];
	blocks[i >> 2] \|= (0x80 \| (code & 0x3f)) << SHIFT[i++ & 3];
	}
	}
	}

	this.lastByteIndex = i;
	this.bytes += i - this.start;
	if (i >= 64) {
	this.block = blocks[16];
	this.start = i - 64;
	this.hash();
	this.hashed = true;
	} else {
	this.start = i;
	}
	}
	if (this.bytes > 4294967295) {
	this.hBytes += this.bytes / 4294967296 << 0;
	this.bytes = this.bytes % 4294967296;
	}
	return this;
	};

	Sha256.prototype.finalize = function () {
	if (this.finalized) {
	return;
	}
	this.finalized = true;
	var blocks = this.blocks, i = this.lastByteIndex;
	blocks[16] = this.block;
	blocks[i >> 2] \|= EXTRA[i & 3];
	this.block = blocks[16];
	if (i >= 56) {
	if (!this.hashed) {
	this.hash();
	}
	blocks[0] = this.block;
	blocks[16] = blocks[1] = blocks[2] = blocks[3] =
	blocks[4] = blocks[5] = blocks[6] = blocks[7] =
	blocks[8] = blocks[9] = blocks[10] = blocks[11] =
	blocks[12] = blocks[13] = blocks[14] = blocks[15] = 0;
	}
	blocks[14] = this.hBytes << 3 \| this.bytes >>> 29;
	blocks[15] = this.bytes << 3;
	this.hash();
	};

	Sha256.prototype.hash = function () {
	var a = this.h0, b = this.h1, c = this.h2, d = this.h3, e = this.h4, f = this.h5, g = this.h6,
	h = this.h7, blocks = this.blocks, j, s0, s1, maj, t1, t2, ch, ab, da, cd, bc;

	for (j = 16; j < 64; ++j) {
	// rightrotate
	t1 = blocks[j - 15];
	s0 = ((t1 >>> 7) \| (t1 << 25)) ^ ((t1 >>> 18) \| (t1 << 14)) ^ (t1 >>> 3);
	t1 = blocks[j - 2];
	s1 = ((t1 >>> 17) \| (t1 << 15)) ^ ((t1 >>> 19) \| (t1 << 13)) ^ (t1 >>> 10);
	blocks[j] = blocks[j - 16] + s0 + blocks[j - 7] + s1 << 0;
	}

	bc = b & c;
	for (j = 0; j < 64; j += 4) {
	if (this.first) {
	if (this.is224) {
	ab = 300032;
	t1 = blocks[0] - 1413257819;
	h = t1 - 150054599 << 0;
	d = t1 + 24177077 << 0;
	} else {
	ab = 704751109;
	t1 = blocks[0] - 210244248;
	h = t1 - 1521486534 << 0;
	d = t1 + 143694565 << 0;
	}
	this.first = false;
	} else {
	s0 = ((a >>> 2) \| (a << 30)) ^ ((a >>> 13) \| (a << 19)) ^ ((a >>> 22) \| (a << 10));
	s1 = ((e >>> 6) \| (e << 26)) ^ ((e >>> 11) \| (e << 21)) ^ ((e >>> 25) \| (e << 7));
	ab = a & b;
	maj = ab ^ (a & c) ^ bc;
	ch = (e & f) ^ (~e & g);
	t1 = h + s1 + ch + K[j] + blocks[j];
	t2 = s0 + maj;
	h = d + t1 << 0;
	d = t1 + t2 << 0;
	}
	s0 = ((d >>> 2) \| (d << 30)) ^ ((d >>> 13) \| (d << 19)) ^ ((d >>> 22) \| (d << 10));
	s1 = ((h >>> 6) \| (h << 26)) ^ ((h >>> 11) \| (h << 21)) ^ ((h >>> 25) \| (h << 7));
	da = d & a;
	maj = da ^ (d & b) ^ ab;
	ch = (h & e) ^ (~h & f);
	t1 = g + s1 + ch + K[j + 1] + blocks[j + 1];
	t2 = s0 + maj;
	g = c + t1 << 0;
	c = t1 + t2 << 0;
	s0 = ((c >>> 2) \| (c << 30)) ^ ((c >>> 13) \| (c << 19)) ^ ((c >>> 22) \| (c << 10));
	s1 = ((g >>> 6) \| (g << 26)) ^ ((g >>> 11) \| (g << 21)) ^ ((g >>> 25) \| (g << 7));
	cd = c & d;
	maj = cd ^ (c & a) ^ da;
	ch = (g & h) ^ (~g & e);
	t1 = f + s1 + ch + K[j + 2] + blocks[j + 2];
	t2 = s0 + maj;
	f = b + t1 << 0;
	b = t1 + t2 << 0;
	s0 = ((b >>> 2) \| (b << 30)) ^ ((b >>> 13) \| (b << 19)) ^ ((b >>> 22) \| (b << 10));
	s1 = ((f >>> 6) \| (f << 26)) ^ ((f >>> 11) \| (f << 21)) ^ ((f >>> 25) \| (f << 7));
	bc = b & c;
	maj = bc ^ (b & d) ^ cd;
	ch = (f & g) ^ (~f & h);
	t1 = e + s1 + ch + K[j + 3] + blocks[j + 3];
	t2 = s0 + maj;
	e = a + t1 << 0;
	a = t1 + t2 << 0;
	}

	this.h0 = this.h0 + a << 0;
	this.h1 = this.h1 + b << 0;
	this.h2 = this.h2 + c << 0;
	this.h3 = this.h3 + d << 0;
	this.h4 = this.h4 + e << 0;
	this.h5 = this.h5 + f << 0;
	this.h6 = this.h6 + g << 0;
	this.h7 = this.h7 + h << 0;
	};

	Sha256.prototype.hex = function () {
	this.finalize();

	var h0 = this.h0, h1 = this.h1, h2 = this.h2, h3 = this.h3, h4 = this.h4, h5 = this.h5,
	h6 = this.h6, h7 = this.h7;

	var hex = HEX_CHARS[(h0 >> 28) & 0x0F] + HEX_CHARS[(h0 >> 24) & 0x0F] +
	HEX_CHARS[(h0 >> 20) & 0x0F] + HEX_CHARS[(h0 >> 16) & 0x0F] +
	HEX_CHARS[(h0 >> 12) & 0x0F] + HEX_CHARS[(h0 >> 8) & 0x0F] +
	HEX_CHARS[(h0 >> 4) & 0x0F] + HEX_CHARS[h0 & 0x0F] +
	HEX_CHARS[(h1 >> 28) & 0x0F] + HEX_CHARS[(h1 >> 24) & 0x0F] +
	HEX_CHARS[(h1 >> 20) & 0x0F] + HEX_CHARS[(h1 >> 16) & 0x0F] +
	HEX_CHARS[(h1 >> 12) & 0x0F] + HEX_CHARS[(h1 >> 8) & 0x0F] +
	HEX_CHARS[(h1 >> 4) & 0x0F] + HEX_CHARS[h1 & 0x0F] +
	HEX_CHARS[(h2 >> 28) & 0x0F] + HEX_CHARS[(h2 >> 24) & 0x0F] +
	HEX_CHARS[(h2 >> 20) & 0x0F] + HEX_CHARS[(h2 >> 16) & 0x0F] +
	HEX_CHARS[(h2 >> 12) & 0x0F] + HEX_CHARS[(h2 >> 8) & 0x0F] +
	HEX_CHARS[(h2 >> 4) & 0x0F] + HEX_CHARS[h2 & 0x0F] +
	HEX_CHARS[(h3 >> 28) & 0x0F] + HEX_CHARS[(h3 >> 24) & 0x0F] +
	HEX_CHARS[(h3 >> 20) & 0x0F] + HEX_CHARS[(h3 >> 16) & 0x0F] +
	HEX_CHARS[(h3 >> 12) & 0x0F] + HEX_CHARS[(h3 >> 8) & 0x0F] +
	HEX_CHARS[(h3 >> 4) & 0x0F] + HEX_CHARS[h3 & 0x0F] +
	HEX_CHARS[(h4 >> 28) & 0x0F] + HEX_CHARS[(h4 >> 24) & 0x0F] +
	HEX_CHARS[(h4 >> 20) & 0x0F] + HEX_CHARS[(h4 >> 16) & 0x0F] +
	HEX_CHARS[(h4 >> 12) & 0x0F] + HEX_CHARS[(h4 >> 8) & 0x0F] +
	HEX_CHARS[(h4 >> 4) & 0x0F] + HEX_CHARS[h4 & 0x0F] +
	HEX_CHARS[(h5 >> 28) & 0x0F] + HEX_CHARS[(h5 >> 24) & 0x0F] +
	HEX_CHARS[(h5 >> 20) & 0x0F] + HEX_CHARS[(h5 >> 16) & 0x0F] +
	HEX_CHARS[(h5 >> 12) & 0x0F] + HEX_CHARS[(h5 >> 8) & 0x0F] +
	HEX_CHARS[(h5 >> 4) & 0x0F] + HEX_CHARS[h5 & 0x0F] +
	HEX_CHARS[(h6 >> 28) & 0x0F] + HEX_CHARS[(h6 >> 24) & 0x0F] +
	HEX_CHARS[(h6 >> 20) & 0x0F] + HEX_CHARS[(h6 >> 16) & 0x0F] +
	HEX_CHARS[(h6 >> 12) & 0x0F] + HEX_CHARS[(h6 >> 8) & 0x0F] +
	HEX_CHARS[(h6 >> 4) & 0x0F] + HEX_CHARS[h6 & 0x0F];
	if (!this.is224) {
	hex += HEX_CHARS[(h7 >> 28) & 0x0F] + HEX_CHARS[(h7 >> 24) & 0x0F] +
	HEX_CHARS[(h7 >> 20) & 0x0F] + HEX_CHARS[(h7 >> 16) & 0x0F] +
	HEX_CHARS[(h7 >> 12) & 0x0F] + HEX_CHARS[(h7 >> 8) & 0x0F] +
	HEX_CHARS[(h7 >> 4) & 0x0F] + HEX_CHARS[h7 & 0x0F];
	}
	return hex;
	};

	Sha256.prototype.toString = Sha256.prototype.hex;

	Sha256.prototype.digest = function () {
	this.finalize();

	var h0 = this.h0, h1 = this.h1, h2 = this.h2, h3 = this.h3, h4 = this.h4, h5 = this.h5,
	h6 = this.h6, h7 = this.h7;

	var arr = [
	(h0 >> 24) & 0xFF, (h0 >> 16) & 0xFF, (h0 >> 8) & 0xFF, h0 & 0xFF,
	(h1 >> 24) & 0xFF, (h1 >> 16) & 0xFF, (h1 >> 8) & 0xFF, h1 & 0xFF,
	(h2 >> 24) & 0xFF, (h2 >> 16) & 0xFF, (h2 >> 8) & 0xFF, h2 & 0xFF,
	(h3 >> 24) & 0xFF, (h3 >> 16) & 0xFF, (h3 >> 8) & 0xFF, h3 & 0xFF,
	(h4 >> 24) & 0xFF, (h4 >> 16) & 0xFF, (h4 >> 8) & 0xFF, h4 & 0xFF,
	(h5 >> 24) & 0xFF, (h5 >> 16) & 0xFF, (h5 >> 8) & 0xFF, h5 & 0xFF,
	(h6 >> 24) & 0xFF, (h6 >> 16) & 0xFF, (h6 >> 8) & 0xFF, h6 & 0xFF
	];
	if (!this.is224) {
	arr.push((h7 >> 24) & 0xFF, (h7 >> 16) & 0xFF, (h7 >> 8) & 0xFF, h7 & 0xFF);
	}
	return arr;
	};

	Sha256.prototype.array = Sha256.prototype.digest;

	Sha256.prototype.arrayBuffer = function () {
	this.finalize();

	var buffer = new ArrayBuffer(this.is224 ? 28 : 32);
	var dataView = new DataView(buffer);
	dataView.setUint32(0, this.h0);
	dataView.setUint32(4, this.h1);
	dataView.setUint32(8, this.h2);
	dataView.setUint32(12, this.h3);
	dataView.setUint32(16, this.h4);
	dataView.setUint32(20, this.h5);
	dataView.setUint32(24, this.h6);
	if (!this.is224) {
	dataView.setUint32(28, this.h7);
	}
	return buffer;
	};

	function HmacSha256(key, is224, sharedMemory) {
	var i, type = typeof key;
	if (type === 'string') {
	var bytes = [], length = key.length, index = 0, code;
	for (i = 0; i < length; ++i) {
	code = key.charCodeAt(i);
	if (code < 0x80) {
	bytes[index++] = code;
	} else if (code < 0x800) {
	bytes[index++] = (0xc0 \| (code >> 6));
	bytes[index++] = (0x80 \| (code & 0x3f));
	} else if (code < 0xd800 \|\| code >= 0xe000) {
	bytes[index++] = (0xe0 \| (code >> 12));
	bytes[index++] = (0x80 \| ((code >> 6) & 0x3f));
	bytes[index++] = (0x80 \| (code & 0x3f));
	} else {
	code = 0x10000 + (((code & 0x3ff) << 10) \| (key.charCodeAt(++i) & 0x3ff));
	bytes[index++] = (0xf0 \| (code >> 18));
	bytes[index++] = (0x80 \| ((code >> 12) & 0x3f));
	bytes[index++] = (0x80 \| ((code >> 6) & 0x3f));
	bytes[index++] = (0x80 \| (code & 0x3f));
	}
	}
	key = bytes;
	} else {
	if (type === 'object') {
	if (key === null) {
	throw new Error(ERROR);
	} else if (ARRAY_BUFFER && key.constructor === ArrayBuffer) {
	key = new Uint8Array(key);
	} else if (!Array.isArray(key)) {
	if (!ARRAY_BUFFER \|\| !ArrayBuffer.isView(key)) {
	throw new Error(ERROR);
	}
	}
	} else {
	throw new Error(ERROR);
	}
	}

	if (key.length > 64) {
	key = (new Sha256(is224, true)).update(key).array();
	}

	var oKeyPad = [], iKeyPad = [];
	for (i = 0; i < 64; ++i) {
	var b = key[i] \|\| 0;
	oKeyPad[i] = 0x5c ^ b;
	iKeyPad[i] = 0x36 ^ b;
	}

	Sha256.call(this, is224, sharedMemory);

	this.update(iKeyPad);
	this.oKeyPad = oKeyPad;
	this.inner = true;
	this.sharedMemory = sharedMemory;
	}
	HmacSha256.prototype = new Sha256();

	HmacSha256.prototype.finalize = function () {
	Sha256.prototype.finalize.call(this);
	if (this.inner) {
	this.inner = false;
	var innerHash = this.array();
	Sha256.call(this, this.is224, this.sharedMemory);
	this.update(this.oKeyPad);
	this.update(innerHash);
	Sha256.prototype.finalize.call(this);
	}
	};

	var exports = createMethod();
	exports.sha256 = exports;
	exports.sha224 = createMethod(true);
	exports.sha256.hmac = createHmacMethod();
	exports.sha224.hmac = createHmacMethod(true);

	if (COMMON_JS) {
	module.exports = exports;
	} else {
	root.sha256 = exports.sha256;
	root.sha224 = exports.sha224;
	if (AMD) {
	define(function () {
	return exports;
	});
	}
	}
	})()

	// Crypto getRandomValues supported in modern browsers https://developer.mozilla.org/en-US/docs/Web/API/Crypto/getRandomValues
	function uuidv4() {
	return ([1e7] + -1e3 + -4e3 + -8e3 + -1e11).replace(/[018]/g, c =>
	(c ^ crypto.getRandomValues(new Uint8Array(1))[0] & 15 >> c / 4).toString(16)
	)
	}

	const getBrowserFingerPrint = () => {
	const canvas = document.createElement('canvas');
	canvas.width = 256;
	canvas.height = 24;
	const context = canvas.getContext('2d');
	const textContent = 'Maybe a <Less Evil> fingerprint?';
	if (!context) {
	return uuidv4();
	}
	context.textBaseline = 'middle';
	context.font = '14px "Arial"';
	context.textBaseline = 'alphabetic';
	context.fillStyle = 'rgb(255, 102, 0)';
	context.fillRect(canvas.width / 4, 0, canvas.width / 2, canvas.height);
	context.fillStyle = 'rgb(0, 102, 153)';
	context.fillText(textContent, 2, 15);
	context.fillStyle = 'rgb(102, 204, 0)';
	context.fillText(textContent, 4, 17);
	const contextBuffer = context.getImageData(0, 0, canvas.width, canvas.height)
	.data.buffer;
	return sha256.create().update(
	String.fromCharCode.apply(null, Array.from(new Uint16Array(contextBuffer))),
	).toString();
	};

	// Make the fingerprint accessible
	window.FINGERPRINT=getBrowserFingerPrint();