X Certificate and Key management

X Certificate and Key Management

XCA 2.4.0 on Windows 10
Developer(s)	Christian Hohnstädt (github/chris2511) [1]
Initial release	July 3, 2002; 23 years ago (2002-07-03)
Stable release	2.4.0 / May 7, 2021; 4 years ago (2021-05-07)
Written in	C++
Operating system	Windows Mac OS Linux
Platform	x86-64
Type	Public Key Infrastructure
Website	hohnstaedt.de/xca/

X Certificate and Key management (XCA) is a free and open-source multi-platform GUI application intended for creating and/or managing X.509 certificates, certificate signing requests, private/public keys (RSA, DSA, and EC), smart cards (via PKCS #11), and certificate revocation lists (CRLs).^[2][3]

XCA has the following major features:^[4]

• Generate and manage asymmetric private/public keys (RSA, DSA, and EC)
• Generate and manage X.509 certificates (including root and intermediate CA certificates) hierarchically
• Generate and process X.509 certificate signing requests (CSRs)
• Revoke previously issued certificates and generate certificate revocation lists (CRLs)
• Read, write, and delete certificates and keys from/to hardware tokens (e.g. smart cards or HSMs) using a PKCS #11 dynamically linked library provided by a third party.
• Sets of certificate hierarchies and keys are stored as a workspace in a database. Keys in the database are protected with password-based encryption.
• Can be controlled entirely via a graphical user interface that is generally considered easier to use than equivalent functionality provided by command-line applications such as OpenSSL.^[5]
• Some operations are accessible over a command-line interface

XCA is written mostly in C++. It relies on OpenSSL to handle cryptographic operations and data structures, and its user interface is implemented using the Qt framework.^[6]

XCA has been endorsed (among others) by SUSE Linux,^[3] Synopsys,^[5] and Barracuda Networks.^[7]

• Official website
• XCA on GitHub

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