本建议|国际标准通过添加签密技术和提供符合最新版ASN的新抽象语法符号1（ASN.1）模块，增强了现有的加密消息语法（CMS）协议。1个标准，可与ASN的所有标准化编码规则一起使用。1.购买本文件时提供的所有当前修订均包含在购买本文件中。

This Recommendation | International Standard enhances the existing cryptographic message syntax (CMS) protocol by adding signcryption techniques and providing a new Abstract Syntax Notation One (ASN.1) module which conforms to the latest edition of the ASN.1 standard which can be used with all standardized encoding rules of ASN.1.All current amendments available at time of purchase are included with the purchase of this document.