This is a set of libraries designed to support cross-platform development of security-enabled client and server applications. It can support SSLv2 and v4, TLS, PKCS #5, #7, #11, #12, S/MIME, X.509 v3 certificates and other security standards. . Install this package if you wish to develop your own programs using the Network Security Service Libraries. . Homepage: http://www.mozilla.org/projects/security/pki/nss/