ASN.1的编码资料虽然较多，但是说的清楚的太少了。上面三个资料我觉得还不错，其中前两个是ASN.1的官方推荐书籍，很详细，但是太多。最后一个适合了解。个人推荐第二本：ASN1dubuisson.pdf，讲的确实很细。有兴趣的朋友可以和我一起探讨。bigstupidpig@126.com.

介绍ASN.1语法的一本好书，由by Olivier Dubuisson编写。

Abstract Syntax Notation One (ASN.1) is a notation that is used in describingmessages to be exchanged between communicating applicationprograms. It provides a high level descr iption of messages that freesprotocol designers from having to focus on t