Bug ID 433664: Performance degrades when using client certificates signed by 4k CA key/certs

Last Modified: Oct 06, 2020

Bug Tracker

Affected Product:  See more info
BIG-IP LTM(all modules)

Known Affected Versions:
10.0.0, 10.1.0, 10.2.0, 10.2.1, 10.2.2, 10.2.3, 10.2.4, 11.0.0, 11.1.0, 11.2.0, 11.2.1, 11.3.0, 11.4.0, 11.4.1

Fixed In:

Opened: Oct 11, 2013
Severity: 3-Major


The SSL/TLS performance could be degraded when certificates signed by 4 KB CA keys/certs.


Using client certificate authentication and using 4k CA key/cert would have performance degrades.


SSL/TLS profile, client certificate authentication enabled and the client certificates or the intermediate CA certificates are signed by 4k CA keys/certs.



Fix Information

Performance has been improved when using client certificates signed by 4 KB CA key/certs.

Behavior Change