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How to determine when the cryptographic keys will expire and are the cryptographic key and CA certificate lifetime settings related

Question & Answer


Question

When I open the freshness file I don't see an expiration date. How do we check the expiration date for the cryptographic (symmetric) key? The gateway servers are setup with the default 365 days and the application servers are setup with 1500 days.  What I see in the freshness file is a freshness value of minus 1. What does this mean? 
We started to notice that users could not login to the application and after re-saving the configuration file that resolved the problem. The CA lifetime is set to 730 days. 
Also, how is the cryptographic (symmetric) key lifetime related to the CA certificate lifetime?

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Modified date:
13 January 2026

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ibm10876560