ASN.1是一种 ISO/ITU-T 标准，描述了一种对数据进行表示、编码、传输和解码的数据格式。它提供了一整套正规的格式用于描述对象的结构，而不管语言上如何执行及这些数据的具体指代，也不用去管到底是什么样的应用程序。-　　ASN.1 is an ISO/ITU-T standard, describes the kind of data that the encoding, transmission and decoding of data formats. It provides a set of formal format for describing the structure of the object, regardless of language and how to refer to these specific data, do not take up tube in the end what kind of applications.