Dear customers,
Due to the public holiday on May 14, 2026, and the following bridge day, we are currently not available in person.
Registrations and manually processed orders cannot be handled during this period. However, our webshop remains available for orders and downloads at any time.
From Monday onward, we will be happy to assist you again as usual.
You can also find many helpful answers and resources in our FAQ section at any time.
Your DIN Media GmbH
Standard [CURRENT]
Product information on this site:
Quick delivery via download or delivery service
All transactions are encrypted
This document defines the application authentication mechanism (A-profile) specifying messages, procedures and algorithms for securing the operation of all protocols based on or derived from IEC 60870-5: Telecontrol Equipment and Systems – Transmission Protocols. This document contains requirements for a secure communication mechanism for all protocols based on IEC 60870-5 and describes security protocol procedures. It is expected that the organization's response to the events and fault conditions described in this standard will be defined by the organization's security policies, which are beyond the scope of this standard. This standard is intended for product developers who implement and apply the IEC 60870-5 protocols. Parts of this standard may also be useful for managers and executives to understand the purpose and requirements.