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/*
 * Browser-compatible JavaScript MD5
 *
 * Modification of JavaScript MD5
 * https://github.com/blueimp/JavaScript-MD5
 *
 * Copyright 2011, Sebastian Tschan
 * https://blueimp.net
 *
 * Licensed under the MIT license:
 * https://opensource.org/licenses/MIT
 *
 * Based on
 * A JavaScript implementation of the RSA Data Security, Inc. MD5 Message
 * Digest Algorithm, as defined in RFC 1321.
 * Version 2.2 Copyright (C) Paul Johnston 1999 - 2009
 * Other contributors: Greg Holt, Andrew Kepert, Ydnar, Lostinet
 * Distributed under the BSD License
 * See http://pajhome.org.uk/crypt/md5 for more info.
 */
function md5(bytes) {
  if (typeof bytes === 'string') {
    var msg = unescape(encodeURIComponent(bytes)); // UTF8 escape

bytes = new Uint8Array(msg.length);

for (var i = 0; i < msg.length; ++i) {
      bytes[i] = msg.charCodeAt(i);
    }
  }

return md5ToHexEncodedArray(wordsToMd5(bytesToWords(bytes), bytes.length * 8));
}
/*
 * Convert an array of little-endian words to an array of bytes
 */

function md5ToHexEncodedArray(input) {
  var output = [];
  var length32 = input.length * 32;
  var hexTab = '0123456789abcdef';

for (var i = 0; i < length32; i += 8) {
    var x = input[i >> 5] >>> i % 32 & 0xff;
    var hex = parseInt(hexTab.charAt(x >>> 4 & 0x0f) + hexTab.charAt(x & 0x0f), 16);
    output.push(hex);
  }

return output;
}
/**
 * Calculate output length with padding and bit length
 */

function getOutputLength(inputLength8) {
  return (inputLength8 + 64 >>> 9 << 4) + 14 + 1;
}
/*
 * Calculate the MD5 of an array of little-endian words, and a bit length.
 */

function wordsToMd5(x, len) {
  /* append padding */
  x[len >> 5] |= 0x80 << len % 32;
  x[getOutputLength(len) - 1] = len;
  var a = 1732584193;
  var b = -271733879;
  var c = -1732584194;
  var d = 271733878;

for (var i = 0; i < x.length; i += 16) {
    var olda = a;
    var oldb = b;
    var oldc = c;
    var oldd = d;
    a = md5ff(a, b, c, d, x[i], 7, -680876936);
    d = md5ff(d, a, b, c, x[i + 1], 12, -389564586);
    c = md5ff(c, d, a, b, x[i + 2], 17, 606105819);
    b = md5ff(b, c, d, a, x[i + 3], 22, -1044525330);
    a = md5ff(a, b, c, d, x[i + 4], 7, -176418897);
    d = md5ff(d, a, b, c, x[i + 5], 12, 1200080426);
    c = md5ff(c, d, a, b, x[i + 6], 17, -1473231341);
    b = md5ff(b, c, d, a, x[i + 7], 22, -45705983);
    a = md5ff(a, b, c, d, x[i + 8], 7, 1770035416);
    d = md5ff(d, a, b, c, x[i + 9], 12, -1958414417);
    c = md5ff(c, d, a, b, x[i + 10], 17, -42063);
    b = md5ff(b, c, d, a, x[i + 11], 22, -1990404162);
    a = md5ff(a, b, c, d, x[i + 12], 7, 1804603682);
    d = md5ff(d, a, b, c, x[i + 13], 12, -40341101);
    c = md5ff(c, d, a, b, x[i + 14], 17, -1502002290);
    b = md5ff(b, c, d, a, x[i + 15], 22, 1236535329);
    a = md5gg(a, b, c, d, x[i + 1], 5, -165796510);
    d = md5gg(d, a, b, c, x[i + 6], 9, -1069501632);
    c = md5gg(c, d, a, b, x[i + 11], 14, 643717713);
    b = md5gg(b, c, d, a, x[i], 20, -373897302);
    a = md5gg(a, b, c, d, x[i + 5], 5, -701558691);
    d = md5gg(d, a, b, c, x[i + 10], 9, 38016083);
    c = md5gg(c, d, a, b, x[i + 15], 14, -660478335);
    b = md5gg(b, c, d, a, x[i + 4], 20, -405537848);
    a = md5gg(a, b, c, d, x[i + 9], 5, 568446438);
    d = md5gg(d, a, b, c, x[i + 14], 9, -1019803690);
    c = md5gg(c, d, a, b, x[i + 3], 14, -187363961);
    b = md5gg(b, c, d, a, x[i + 8], 20, 1163531501);
    a = md5gg(a, b, c, d, x[i + 13], 5, -1444681467);
    d = md5gg(d, a, b, c, x[i + 2], 9, -51403784);
    c = md5gg(c, d, a, b, x[i + 7], 14, 1735328473);
    b = md5gg(b, c, d, a, x[i + 12], 20, -1926607734);
    a = md5hh(a, b, c, d, x[i + 5], 4, -378558);
    d = md5hh(d, a, b, c, x[i + 8], 11, -2022574463);
    c = md5hh(c, d, a, b, x[i + 11], 16, 1839030562);
    b = md5hh(b, c, d, a, x[i + 14], 23, -35309556);
    a = md5hh(a, b, c, d, x[i + 1], 4, -1530992060);
    d = md5hh(d, a, b, c, x[i + 4], 11, 1272893353);
    c = md5hh(c, d, a, b, x[i + 7], 16, -155497632);
    b = md5hh(b, c, d, a, x[i + 10], 23, -1094730640);
    a = md5hh(a, b, c, d, x[i + 13], 4, 681279174);
    d = md5hh(d, a, b, c, x[i], 11, -358537222);
    c = md5hh(c, d, a, b, x[i + 3], 16, -722521979);
    b = md5hh(b, c, d, a, x[i + 6], 23, 76029189);
    a = md5hh(a, b, c, d, x[i + 9], 4, -640364487);
    d = md5hh(d, a, b, c, x[i + 12], 11, -421815835);
    c = md5hh(c, d, a, b, x[i + 15], 16, 530742520);
    b = md5hh(b, c, d, a, x[i + 2], 23, -995338651);
    a = md5ii(a, b, c, d, x[i], 6, -198630844);
    d = md5ii(d, a, b, c, x[i + 7], 10, 1126891415);
    c = md5ii(c, d, a, b, x[i + 14], 15, -1416354905);
    b = md5ii(b, c, d, a, x[i + 5], 21, -57434055);
    a = md5ii(a, b, c, d, x[i + 12], 6, 1700485571);
    d = md5ii(d, a, b, c, x[i + 3], 10, -1894986606);
    c = md5ii(c, d, a, b, x[i + 10], 15, -1051523);
    b = md5ii(b, c, d, a, x[i + 1], 21, -2054922799);
    a = md5ii(a, b, c, d, x[i + 8], 6, 1873313359);
    d = md5ii(d, a, b, c, x[i + 15], 10, -30611744);
    c = md5ii(c, d, a, b, x[i + 6], 15, -1560198380);
    b = md5ii(b, c, d, a, x[i + 13], 21, 1309151649);
    a = md5ii(a, b, c, d, x[i + 4], 6, -145523070);
    d = md5ii(d, a, b, c, x[i + 11], 10, -1120210379);
    c = md5ii(c, d, a, b, x[i + 2], 15, 718787259);
    b = md5ii(b, c, d, a, x[i + 9], 21, -343485551);
    a = safeAdd(a, olda);
    b = safeAdd(b, oldb);
    c = safeAdd(c, oldc);
    d = safeAdd(d, oldd);
  }

return [a, b, c, d];
}
/*
 * Convert an array bytes to an array of little-endian words
 * Characters >255 have their high-byte silently ignored.
 */

function bytesToWords(input) {
  if (input.length === 0) {
    return [];
  }

var length8 = input.length * 8;
  var output = new Uint32Array(getOutputLength(length8));

for (var i = 0; i < length8; i += 8) {
    output[i >> 5] |= (input[i / 8] & 0xff) << i % 32;
  }

return output;
}
/*
 * Add integers, wrapping at 2^32. This uses 16-bit operations internally
 * to work around bugs in some JS interpreters.
 */

function safeAdd(x, y) {
  var lsw = (x & 0xffff) + (y & 0xffff);
  var msw = (x >> 16) + (y >> 16) + (lsw >> 16);
  return msw << 16 | lsw & 0xffff;
}
/*
 * Bitwise rotate a 32-bit number to the left.
 */

function bitRotateLeft(num, cnt) {
  return num << cnt | num >>> 32 - cnt;
}
/*
 * These functions implement the four basic operations the algorithm uses.
 */

function md5cmn(q, a, b, x, s, t) {
  return safeAdd(bitRotateLeft(safeAdd(safeAdd(a, q), safeAdd(x, t)), s), b);
}

function md5ff(a, b, c, d, x, s, t) {
  return md5cmn(b & c | ~b & d, a, b, x, s, t);
}

function md5gg(a, b, c, d, x, s, t) {
  return md5cmn(b & d | c & ~d, a, b, x, s, t);
}

function md5hh(a, b, c, d, x, s, t) {
  return md5cmn(b ^ c ^ d, a, b, x, s, t);
}

function md5ii(a, b, c, d, x, s, t) {
  return md5cmn(c ^ (b | ~d), a, b, x, s, t);
}

export default md5;

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