ISO/IEC 24824-4:2021
ISO/IEC 24824-4:2021

The electronic version of this International Standard can be downloaded from the ISO/IEC Information Technology Task Force (ITTF) web site.



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.

General information 

  •  :  Published
     : 2021-03
  •  : 1
     : 98
  •  : ISO/IEC JTC 1/SC 6 Telecommunications and information exchange between systems
  •  :
    35.100.60 Presentation layer

Buy this standard

Format Language
std 1 208 PDF
std 2 208 Paper
  • CHF208

Got a question?

Check out our FAQs

Customer care
+41 22 749 08 88

Opening hours:
Monday to Friday - 09:00-12:00, 14:00-17:00 (UTC+1)

Keep up to date with ISO

Sign up to our newsletter for the latest news, views and product information.