| Gong L., Signing, Sealing and Guarding Java Objects, Lecture Notes in Computer Science (LNCS), Vol.1419, Springer-Verlag, June 1998 |
....for programs. Operating systems traditionally implement domains using hardware enforced address spaces. The trend towards portable programs and mobile code has led nonetheless to virtual machines that enforce protection in software. One example in the object oriented context is a guarded object [10]. In this approach, a guard object maintains a reference to a guarded object; a request to gain access to the guarded object is mediated upon by the guard. Another example of software enforced protection is found in Java [2] where each protection domain possesses its own name space (set of ....
....G Obj (c) user Root Client Server client1 client2 Server user packet Figure 2 Examples with spaces. 2.3.2 Guarded Objects A common example of a mechanism for controlled sharing is guarded objects. We consider two different versions of the guarded object notion here: a Java 2 version [10] and a second more traditional version [23] In Java, a guard object contains a guarded object. On application startup, only the guard object possesses a reference to the guarded object. This object contains a method getObject( which executes a checkAccess method that encapsulates a security ....
L. Gong and R. Schemers. Signing, Sealing, and Guarding Java Objects. Lecture Notes in Computer Science, 1419:206-- 218, 1998.
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Gong L., Signing, Sealing and Guarding Java Objects, Lecture Notes in Computer Science (LNCS), Vol.1419, Springer-Verlag, June 1998
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Gong, J., Bchler, R., Sati, M., and Nolte, L.P. Restricted surface matching, a new approach to registration in computer assisted surgery Proc of CVRMed - MRCAS, Lecture Notes in Computer Science , Springer pp 597--605, 1997
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