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XML Security Library source code is available on GitHub.
The latest stable XML Security Library version is 1.3.13:
- Sources and signature for the latest version (Coverity report).
- WIN64 binaries for XML Security Library (as well as LibXML2, LibXSLT and OpenSSL).
- XML Security Library is included as part of Debian GNU/Linux. For more information see the coordination page.
- XML Security Library OpenBSD port.
The previous releases are also available.
The signature key
fingerprint is: 00FD D6A7 DFB8 1C88 F34B 9BF0 E63E CDEF 9E1D 829E
(how to verify tarball signature).
The XML Security Library requires LibXML2 2.9.13 or newer, and optionally LibXSLT 1.1.35 or newer. Plus one of the following cryptographic libraries:
| XML Security Library | Cryptographic library | Notes |
|---|---|---|
| xmlsec-openssl with OpenSSL | OpenSSL version 3.0.13 or newer. | OpenSSL 3.5.0 or newer is recommended (supports all REQUIRED and all RECOMMENDED XML Digital Signature 1.1 and XML Encryption 1.1 algorithms). |
| xmlsec-openssl with OpenSSL forks | AWS-LC v1.63.0 or newer; LibreSSL version 3.9.0 or newer; BoringSSL version 1.1.0 or newer. | Some of the OpenSSL forks do not have a stable API (e.g. BoringSSL) and the latest versions of the libraries might not work with XML Security Library. |
| xmlsec-nss | NSS (Mozilla cryptographic library) 3.91 or newer | Requires NSPR 4.34.1 or newer |
| xmlsec-gnutls | GnuTLS 3.8.3 or newer | Supports multiple cryptographic backends; the exact feature set for xmlsec-gnutls depends on the backend in use. |
| xmlsec-mscng | Microsoft Cryptography API: Next Generation (requires Windows 7, Windows Server 2008 R2, or newer) | xmlsec-mscng is the recommended version on the Windows platform. |
| xmlsec-mscrypto | Microsoft CryptoAPI (MSCrypto) (requires Windows Server 2003, or newer) | In maintenance mode starting from xmlsec 1.3.0, April 2023. |
| xmlsec-gcrypt | LibGCrypt 1.4.0 or newer | In maintenance mode starting from xmlsec 1.3.0, April 2023. |
The supported key formats report, XML Digital Signature Interoperability report, and XML Encryption Interoperability report provide detailed information about the features supported by each library.
The XML Security Library uses the standard Unix/Linux build steps with configure / make. For more details and other operating systems support, see the tutorial.