xca(1) on Linux
The text d487a0a70af5, as Debian 6.0 (Squeeze) shipped it.
A GUI for handling X509 certificates, RSA keys, PKCS#10 Requests and CRLs.
Flags it lists
-
-7 -
-b -
-c -
-d -
-k -
-l -
-p -
-r -
-t -
-v -
-x