This article lists applications and other software implementations using the PKCS #11 standard.

Applications

• FreeOTFE – disk encryption system (PKCS #11 can either be used to encrypt critical data block, or as keyfile storage)
• Mozilla Firefox – a web browser
• Mozilla Thunderbird – an email client
• OpenDNSSEC – a DNSSEC signer
• OpenSSL – TLS/SSL library (with engine_pkcs11)
• GnuTLS – TLS/SSL library
• Network Security Services library developed by Mozilla
• OpenVPN – VPN system
• StrongSwan – VPN system
• TrueCrypt – disk encryption system (PKCS #11 only used as trivial keyfile storage)
• TrouSerS – an open-source TCG Software Stack
• OpenSC – smartcard library
• OpenSSH – a Secure Shell implementation (since OpenSSH version 5.4)^[1]
• OpenDS – an open source directory server.
• Oracle Database – uses PKCS#11 for transparent data encryption^[2]
• IBM DB2 Database – uses PKCS#11 for transparent data encryption^[3]
• PowerDNS – open source, authoritative DNS server (since version 3.4.0)
• GNOME Keyring – a password and cryptographic key manager.
• Solaris Cryptographic Framework – pluggable cryptographic system in operating system
• Safelayer – KeyOne and TrustedX product suites.
• Pkcs11Admin – GUI tool for administration of PKCS#11 enabled devices
• SoftHSM – implementation of a cryptographic store accessible through a PKCS#11 interface
• XCA – X Certificate and Key management
• SecureCRT – SSH client
• wolfSSL – an SSL/TLS library with PKCS #11 support^[4]
• XShell - SSH Client from NetSarang Computer, Inc (versions > 6.0 support PKCS#11)
• EJBCA – Certification Authority software (uses PKCS#11 for digital signatures)
• SignServer – Server side software for digitally signing and time stamping documents, files and code (uses PKCS#11 for digital signatures and key wrapping/unwrapping)
• PuTTY-CAC - A fork of PuTTY that supports smartcard authentication
• Bloombase StoreSafe – Data-at-rest encryption software appliance with PKCS#11 support for external key management

PKCS #11 wrappers

Since PKCS #11 is a complex C API many wrappers exist that let the developer use the API from various languages.

• For Perl:
  • Crypt::PKCS11
  • Crypt::NSS::PKCS11
  • Crypt::PKCS11::Easy
  • Crypt::Cryptoki
• php-pkcs11 PHP PKCS11 Extension including the support of the Oasis PKCS11 standard
• NCryptoki - .NET (C# and VB.NET), Silverlight 5 and Visual Basic 6 wrapper for PKCS #11 API
• Pkcs11Interop - Open source .NET wrapper for unmanaged PKCS#11 libraries
• python-pkcs11 - The most complete and documented PKCS#11 wrapper for Python
• PyKCS11 - Another wrapper for Python
• pkcs11 - Another wrapper for Python
• Java includes a wrapper for PKCS #11 API since version 1.5
• IAIK PKCS#11 Wrapperon GitHub - A library for the Java™ platform which makes PKCS#11 modules accessible from within Java.
• pkcs11-helper - A simple open source C interface to handle PKCS #11 tokens.
• SDeanComponents - Delphi wrapper for PKCS #11 API
• jacknji11 - Java wrapper using Java Native Access (JNA)
• rust-cryptoki - High-level, Rust idiomatic wrapper crate for PKCS #11.
• rust-pkcs11 - Crate for Rust
• ruby-pkcs11 - Ruby binding for PKCS #11 API
• tclPKCS11 = Tcl binding for PKCS#11 API
• pkcs11.net - .NET wrapper for PKCS #11 API
• Oracle Solaris Cryptographic Framework
• pkcs11 - Go wrapper for PKCS #11 API
• node.js
  • graphene - high level OOP wrapper for pkcs#11
  • pkcs11js - low level wrapper for pkcs#11