Crypto Client's clientssl profile config issue(External Crypto )

Hi Everyone

Who has configured external crypto function ? Crypto Client's clientssl profile cert&key and Crypto Server's crypto-server-default-clientssl profile cert&key is the same?

This guide “https://support.f5.com/kb/en-us/products/big-ip_ltm/manuals/product/bigip-ssl-administration-12-0-0/18.html” is not very clear about the certificate requirements.

Many thanks

D.Luo