XMLSec library provides C based implementation for major XML Security
standards:
    * XML Signature Syntax and Processing
      http://www.w3.org/TR/xmldsig-core
    * XML Encryption Syntax and Processing
      http://www.w3.org/TR/xmlenc-core/
XMLSec is based on well known LibXML (http://xmlsoft.org), LibXSLT
(http://xmlsoft.org/XSLT) and OpenSSL (http://www.openssl.org) libraries.

Homepage:
https://www.aleksey.com/xmlsec/
