lib/verifier.js
function Verifier(givenMasterKey) {
  var masterKey = givenMasterKey || MASTER_KEY;
  if (!masterKey) {
    throw new errors.ValidationFailed('invalid master key');
  }
  this.masterKey = base64url.toBuffer(masterKey);
}
function Verifier(givenMasterKey) {
  var masterKey = givenMasterKey || MASTER_KEY;
  if (!masterKey) {
    throw new errors.ValidationFailed('invalid master key');
  }
  this.masterKey = base64url.toBuffer(masterKey);
}
function Verifier ( givenMasterKey ) { var masterKey = givenMasterKey || MASTER_KEY ; if ( ! masterKey ) { throw new errors . ValidationFailed ( 'invalid master key' ) ; } this . masterKey = base64url . toBuffer ( masterKey ) ; }
Create a new verifier instance for the given master key

@constructor
@param {string} masterKey - Master key base64url string
Create a new verifier instance for the given master key