In [[computing]], the '''Java Secure Socket Extension''' ('''JSSE''') providesis a setJava ofAPI packagesand a provider implementation named SunJSSE that enable secure [[Internet]] communications in the [[Java Runtime Environment]]. It implements a [[Java (programming language)|Java]] technology version of the [[Secure Sockets Layer]] (SSL) and the [[Transport Layer Security]] (TLS) [[Communications protocol | protocol]]s. It includes functionality for data [[encryption]],<ref>{{cite book | last1 = Harold | first1 = Elliotte Rusty | author-link1 = Elliotte Rusty Harold | title = Java Network Programming | date = 4 October 2013 | url = https://books.google.com/books?id=cXggAQAAQBAJ | publisher = O'Reilly Media, Inc. | publication-date = 2013 | page = 327 | isbn = 9781449365967 | access-date = 2014-10-19 | quote = JSSE allows you to create sockets and server sockets that transparently handle the negotiations and encryption necessary for secure communication.
}}</ref> server [[authentication]], [[message integrity]], and optional client-authentication.
JSSE, was originally developed as an optional package for Java versions 1.2 and 1.3, becamebut integratedwas added as a standard API and implementation into versionJDK {{clarify-span|1.4|date=October 2013}}.
