XCOM is an AT-TLS aware application

Products

• XCOM Data Transport - z/OS
• XCOM Data Transport

Issue/Introduction

Why is XCOM an AT-TLS aware application and not an AT-TLS controlling application?

Environment

Release : 12.0

Resolution

An AT-TLS controlling application issues commands to start and stop the encryption over an existing connection.

An AT-TLS aware application allows AT-TLS to establish the encryption on a plain TCP/IP connection.
The awareness comes from the applicaton (XCOM etc) calling functions to verify that the connection is indeed encrypted and to extract specifics about the type of encryption being used.
That is how XCOM is coded for use with AT-TLS. 

Additional Information

z/OS > 2.4.0 > z/OS Communications Server: IP Programmer's Guide and Reference > Application Transparent Transport Layer Security (AT-TLS)