OpenSignX is a document and form signing Java applet for PKI X.509 certificates. It is based on www.openOCES.org and provides generation XAdES enveloping signature of one or multiple documents supporting PKCS#11 Java keystores.
The PKI Framework (PKIF) is a cross-platform library for performing PKIX-compliant certificate processing. It includes support for SCVP, OCSP, CMS and Timestamps. It uses Windows CAPI, NSS or Crypto++ for cryptographic services and hardware support.