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removed wrong information - the cited sources don't mention the widespread use, or any at all, in sim cards. This is very misleading. Tag: references removed |
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'''Java Card''' refers to a software technology that allows [[Java platform|Java]]-based applications ([[applet]]s) to be run securely on [[smart card]]s and similar small memory footprint devices.<ref name="Chen 2000">{{cite book | last=Chen | first=Z. | title=Java Card Technology for Smart Cards: Architecture and Programmer's Guide | publisher=Addison-Wesley | series=Addison-Wesley Java Series | year=2000 | isbn=978-0-201-70329-0 | url=https://archive.org/details/javacardtmtechno00zhiq | url-access=registration | access-date=9 April 2019 | page=}}</ref> Java Card is the tiniest of Java platforms targeted for embedded devices. Java Card gives the user the ability to program the devices and make them application specific. It is widely used in [[Automated teller machine|ATM]] cards.<ref>{{Citation|last=Oracle Learning Library|title=Developing Java Card Applications|date=2013-01-30|url=https://www.youtube.com/watch?v=khgT5dwKvOo|access-date=2019-04-18}}</ref> The first Java Card was introduced in 1996 by [[Schlumberger Limited|Schlumberger]]'s card division which later merged with [[Gemplus]] to form [[Gemalto]]. Java Card products are based on the Java Card Platform specifications developed by [[Sun Microsystems]] (later a [[subsidiary]] of [[Oracle Corporation]]). Many Java card products also rely on the GlobalPlatform specifications for the secure management of applications on the card (download, installation, personalization, deletion).
The main design goals of the Java Card technology are portability and security.<ref>{{cite journal |author1=Ahmed Patel |author2=Kenan Kalajdzic |author3=Laleh Golafshan |author4=Mona Taghavi | year = 2011 | title = Design and Implementation of a
== Portability ==
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== Java Card 3.0 ==
The version 3.0 of the Java Card specification (draft released in March 2008) is separated in two editions: the ''Classic Edition'' and the ''Connected Edition''.<ref name="Samoylov 2018 p. 13">{{cite book | last=Samoylov | first=N. | title=Introduction to Programming: Learn to program in Java with data structures, algorithms, and logic | publisher=Packt Publishing | year=2018 | isbn=978-1-78883-416-2 | url=https://books.google.
* The ''Classic Edition'' (currently at version 3.0.5 released in June 2015) is an evolution of the Java Card Platform version 2 (which last version 2.2.2 was released in March 2006), which supports traditional card applets on resource-constrained devices such as Smart Cards. Older applets are generally compatible with newer Classic Edition devices, and applets for these newer devices can be compatible with older devices if not referring to new library functions. Smart Cards implementing Java Card Classic Edition have been security-certified by multiple vendors, and are commercially available.
* The ''Connected Edition'' (currently at version 3.0.2 released in December 2009) aims to provide a new virtual machine and an enhanced execution environment with network-oriented features. Applications can be developed as classic card applets requested by [[smart card application protocol data unit|APDU]] commands or as servlets using [[HTTP]] to support web-based schemes of communication ([[HTML]], [[REST]], [[SOAP]] ...) with the card. The runtime uses a subset of the Java (1.)6 bytecode, without Floating Point; it supports volatile objects ([[Garbage collection (computer science)|garbage collection]]), [[Thread (computer science)|multithreading]], inter-application communications facilities, [[Persistence (computer science)|persistence]], [[Transaction processing|transactions]], card management facilities ... As of 2017 there has been little adoption in commercially available Smart Cards, so much that reference to Java Card (including in the present Wikipedia page) often implicitly excludes the ''Connected Edition''.
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