Core mod_ca modules; that provide cryptographic and PKI services to other redwax modules. mod_ca_crl: Backend module that reads a Certificate Revocation List from disk and exposes it via mod_crl or mod_ocsp. mod_ca_disk: Backend module that stores and serves certificates from a directory on disk compatible with an OpenSSL CA. mod_ca_engine: Backend module that signs and issues certificates based on a key stored in an HSM provided by the OpenSSL Engine interface. mod_ca_ldap: Backend module that verifies permission to issue a certificate and to store a certificate once issued. mod_ca_simple: Backend module that signs and issues certificates base on a key stored on disk. mod_ca: Provides the API that allows the backend and frontend modules to be combined with one another. WWW: http://redwax.eu/