gnoMint is a tool for easily creating and managing
certification authorities. It provides fancy
visualization of all the pieces of information
that pertain to a CA, such as x509 certificates,
CSRs, and CRLs. gnoMint is currently capable of
managing a CA that emits certificates that are
able to authenticate people or machines in VPNs
(IPSec or other protocols), secure HTTP
communications with SSL/TLS, authenticate and
cipher HTTP communications through Web-client
certificates, and sign or crypt email messages.