How to use buildCipherConstructor method in wpt

Best JavaScript code snippet using wpt

crypto.js

Source:crypto.js

...583    }584    var hash = calculateMD5(key, 0, i);585    return hash.subarray(0, Math.min(encryptionKey.length + 5, 16));586  }587  function buildCipherConstructor(cf, name, num, gen, key) {588    var cryptFilter = cf.get(name.name);589    var cfm;590    if (cryptFilter !== null && cryptFilter !== undefined)591      cfm = cryptFilter.get('CFM');592    if (!cfm || cfm.name == 'None') {593      return function cipherTransformFactoryBuildCipherConstructorNone() {594        return new NullCipher();595      };596    }597    if ('V2' == cfm.name) {598      return function cipherTransformFactoryBuildCipherConstructorV2() {599        return new ARCFourCipher(600          buildObjectKey(num, gen, key, false));601      };602    }603    if ('AESV2' == cfm.name) {604      return function cipherTransformFactoryBuildCipherConstructorAESV2() {605        return new AES128Cipher(606          buildObjectKey(num, gen, key, true));607      };608    }609    error('Unknown crypto method');610  }611  CipherTransformFactory.prototype = {612    createCipherTransform:613      function CipherTransformFactory_createCipherTransform(num, gen) {614      if (this.algorithm == 4) {615        return new CipherTransform(616          buildCipherConstructor(this.cf, this.stmf,617            num, gen, this.encryptionKey),618          buildCipherConstructor(this.cf, this.strf,619            num, gen, this.encryptionKey));620      }621      // algorithms 1 and 2622      var key = buildObjectKey(num, gen, this.encryptionKey, false);623      var cipherConstructor = function buildCipherCipherConstructor() {624        return new ARCFourCipher(key);625      };626      return new CipherTransform(cipherConstructor, cipherConstructor);627    }628  };629  return CipherTransformFactory;...

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