XCA is a graphical user interface for creating RSA/DSA public keys, certificates, signing requests and revokation lists. It allows you to create and manage X.509 certificates. This application is intended as Certificate- and key-store and as signing application issuing certificates.
A certificate can be created by self signing it, by signing it by an other (usually CA) certificate, by signing a PKCS#10 request or a Netscape SPKAC.

The validity dates and x509.v3 extensions can be adjusted to fit ones needs. The use of multiple certificates in CA chains is supported and a tree view of the certificates reflects the dependencies.

Certificate Templates can be used to preset the input dialog with reasonable values and to simplify the process of creating certificates and requests.

Issued certificates can be revoked and the revokation list can be created and exported. External revokation lists can be imported and examined.

The most usual certificate extensions can be set by easy to use input widgets. Other extensions can be defined by using the OpenSSL config file format.

XCA Supported file types:
* PEM
* DER
* PKCS#7
* PKCS#10
* PKCS#12 (aka *.pfx)

The license of this software is Freeware, you can free download and free use this email encryption software.