# SSL Implementation on IBM EBCDIC Systems

On z/OS and IBM i systems, secure connections are created using IBM System SSL. To implement IBM System SSL for TIBCO Enterprise Message Service, you must set the necessary environment variables, and use the API documented in the sections below.

Additionally, the EMS client application must run within the context of a user ID which has the necessary privileges to access the IBM System SSL facility. For details about these requirements, see the section on SSL requirements in the TIBCO EMS Client for z/OS (MVS) Installation and Reference, or the TIBCO EMS Client for IBM i Installation and Reference.

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