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    Network Security Services

    Network Security Services (NSS) is a set of libraries designed to support cross-platform development of security-enabled client and server applications. Applications built with NSS can support SSL v2 and v3, TLS, PKCS #5, PKCS #7, PKCS #11, PKCS #12, S/MIME, X.509 v3 certificates, and other security standards.

    For detailed information on standards supported, see Overview of NSS. For a list of frequently asked questions, see the FAQ.

    NSS is available under the Mozilla Public License. For information on downloading NSS releases as tar files, see Download PKI Source.

    If you're a developer and would like to contribute to NSS, you might want to read the documents highlevel overview of internal details of NSS and getting started with NSS.


    Background Information

    Overview of NSS
    Provides a brief summary of NSS and its capabilities.
    Answers basic questions about NSS.
    Introduction to Public-Key Cryptography
    Explains the basic concepts of public-key cryptography that underlie NSS.
    Introduction to SSL
    Introduces the SSL protocol, including information about cryptographic ciphers supported by SSL and the steps involved in the SSL handshake.

    Getting Started

    NSS Releases
    This page contains information about the current and past releases of NSS.
    Get the source code and Build it
    Instructions on how to build NSS on the different supported platforms.
    Get Mozilla Source Code Using Mercurial
    Information about with working with Mercurial.
    Get Mozilla Source Code Using CVS (deprecated)
    Old deprecated CVS documentation.

    NSS APIs

    Introduction to Network Security Services
    Provides an overview of the NSS libraries and what you need to know to use them.
    NSS Public Functions
    Summarizes the APIs exported by the NSS shared libraries.
    NSS Reference
    API used to invoke SSL operations.
    NSS API Guidelines
    Explains how the libraries and code are organized, and guidelines for developing code (naming conventions, error handling, thread safety, etc.)
    NSS Technical Notes
    Links to NSS technical notes, which provide latest information about new NSS features and supplementary documentation for advanced topics in programming with NSS.

    Tools, testing, and other technical details

    Build Instructions for NSS
    Describe how to check out and build NSS releases.
    NSS Tools
    Tools for developing, debugging, and managing applications that use NSS.
    Sample Code
    Demonstrates how NSS can be used for cryptographic operations, certificate handling, SSL, etc.
    NSS 3.2 Test Suite
    Archived version. Describes how to run the standard NSS tests.
    NSS Performance Reports
    Archived version. Links to performance reports for NSS 3.2 and later releases.
    Encryption Technologies Available in NSS 3.11
    Archived version. Lists the cryptographic algorithms used by NSS 3.11.
    NSS 3.1 Loadable Root Certificates
    Archived version. Describes the scheme for loading root CA certificates.
    Archived version. General format of the cert7.db database.

    PKCS #11 information

    CA certificates pre-loaded into NSS

    NSS is built on top of Netscape Portable Runtime (NSPR)

    Netscape Portable Runtime
    NSPR project page.
    NSPR Reference
    NSPR API documentation.

    Additional Information



    Information on NSS planning can be found at, including:


    • View Mozilla Security forums...

    • View Mozilla Cryptography forums...


    Document Tags and Contributors

    Contributors to this page: halan
    Last updated by: halan,