nss: nss (Network Security Services Libraries) nss: nss: The Network Security Services (NSS) package is a set of libraries nss: designed to support cross-platform development of security-enabled nss: client and server applications. Applications built with NSS can nss: support SSL v2 and v3, TLS, PKCS #5, PKCS #7, PKCS #11, PKCS #12, nss: S/MIME, X.509 v3 certificates, and other security standards. This is nss: useful for implementing SSL and S/MIME or other Internet security nss: standards into an application. nss: nss: