| S. M. Inc., "Java Security Architecture (JDK 1.2) Document Version 1.0 ," Sun M. Inc., Oct. 1998. |
....to code mobility and frequently is considered the main limitation for the broad use of these paradigms [3] Java language popularized the notion of mobile code through its applets. The security model implemented for the Java platform, in its initial proposal, is centered in the sandbox concept [4]. The essence of the sandbox model is that the local code is trustworthy and has full access to the resources of the system (such as the file system) while the remote code (an applet) is not trustworthy and can have access only to limited resources, provided inside sandbox. This sandbox concept is ....
....a Security Manager class, that restricts the actions of a non trustworthy code to the minimum possible. This mechanism implements the access control (dynamic) in the code execution, materializing the sandbox concept. Two phases of development can be cited from the original sandbox security model [4]. The first one involves kit JDK 1.1.x that introduced the signed applet concept. In this model, a digitally signed applet is treated as if it was a correct local code, since the signature s key is recognized as trustworthy for the system that received the applet for execution. Besides the signed ....
S. M. Inc., "Java Security Architecture (JDK 1.2) Document Version 1.0," Sun M. Inc., Oct. 1998.
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S. M. Inc., "Java Security Architecture (JDK 1.2) Document Version 1.0 ," Sun M. Inc., Oct. 1998.
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