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Sandbox (computer science) (view source)
Revision as of 21:02, March 21, 2010
, 21:02, March 21, 2010Created page with 'In computer science, a '''sandbox''' refers to a environment where software and potentially dangerous operations can be tested in isolation, thus reducing the chance of colla…'
In [[computer science]], a '''sandbox''' refers to a environment where software and potentially dangerous operations can be tested in isolation, thus reducing the chance of collateral damage to the primary system environment resulting from a poorly designed and/or malicious program.
==Examples==
===[[Java]]===
The [[Java|Java runtime environment]] runs all compiled programs in a sandbox to prevent security breaches. The sandboxed environment creates very strict limitations on what resources a Java applet or program can access to prevent malicious programs from running successfully. [[Java]] does this using three key strategies:
*'''security manager''' - The security manager is a program that [[Java]] consults every time it runs a program or applet. The security manager has the option to stop any potentially dangerous operation by generating a security exception and passing it to the operating system.
*'''bytecode verifier''' - Before the [[Java|Java runtime environment]] runs a compiled program, it verifies the compiled bytecode and flags any suspicious pieces of the code. This normally prevents malicious segments of code from completely executing.
*'''applet class loader''' - Because all pieces of [[Java]] code are loaded from classes from within the environment, the [[Java]] class loader checks to ensure that no vital pieces of the runtime environment are replaced by other (possibly malicious) versions generated by outside applets.<ref> {{cite web|url=http://www.webopedia.com/TERM/s/sandbox.html |title=sandbox |publisher=Webopedia }}</ref>
==See Also==
[[Java]]
[[Category:Computer Programming]]
[[Category:Computer Science]]
==References==
<references>
==Examples==
===[[Java]]===
The [[Java|Java runtime environment]] runs all compiled programs in a sandbox to prevent security breaches. The sandboxed environment creates very strict limitations on what resources a Java applet or program can access to prevent malicious programs from running successfully. [[Java]] does this using three key strategies:
*'''security manager''' - The security manager is a program that [[Java]] consults every time it runs a program or applet. The security manager has the option to stop any potentially dangerous operation by generating a security exception and passing it to the operating system.
*'''bytecode verifier''' - Before the [[Java|Java runtime environment]] runs a compiled program, it verifies the compiled bytecode and flags any suspicious pieces of the code. This normally prevents malicious segments of code from completely executing.
*'''applet class loader''' - Because all pieces of [[Java]] code are loaded from classes from within the environment, the [[Java]] class loader checks to ensure that no vital pieces of the runtime environment are replaced by other (possibly malicious) versions generated by outside applets.<ref> {{cite web|url=http://www.webopedia.com/TERM/s/sandbox.html |title=sandbox |publisher=Webopedia }}</ref>
==See Also==
[[Java]]
[[Category:Computer Programming]]
[[Category:Computer Science]]
==References==
<references>