whole_func_string: function verify (input, algorithm, secret, signature) {
    const alg = algorithmMap[algorithm]
  
    if (!alg) {
      errorMap['006'].message = 'Algorithm not recognized, signature verification failed'
      errorMap['006'].message = new Error(errorMap['006'].message)
      return false
    }
  
    const type = typeMap[algorithm]
  
    switch (type) {
      case 'hmac':
        return hmacVerify(input, alg, secret, signature)
      case 'sign':
        return rsaVerify(input, alg, secret, signature)
      default:
        return hmacVerify(input, alg, secret, signature)
    }
  }
func_code_string: function verify (input, algorithm, secret, signature) {
    const alg = algorithmMap[algorithm]
  
    if (!alg) {
      errorMap['006'].message = 'Algorithm not recognized, signature verification failed'
      errorMap['006'].message = new Error(errorMap['006'].message)
      return false
    }
  
    const type = typeMap[algorithm]
  
    switch (type) {
      case 'hmac':
        return hmacVerify(input, alg, secret, signature)
      case 'sign':
        return rsaVerify(input, alg, secret, signature)
      default:
        return hmacVerify(input, alg, secret, signature)
    }
  }
func_documentation_string: abstract verify signature method
  @param  {String} input      verify input
  @param  {String} algorithm  verify algorithm
  @param  {String} secret     verify secret
  @param  {String} signature  verify signature
  @return {Object}            verify result