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Today's applications are highly mobile; we download software from the Internet, machine executable code arrives attached to electronic mail, and Java applets increase the functionality and appearance of Web pages. This movement has stirred a great deal of research in the area of mobile code security. The fact remains that a newly arrived program to a local host has the potential to inflict significant damage to the local host and local resources. Perhaps the new program originated from a charlatan host masquerading as a trusted server, or has been modified by a malicious party during transit from the trusted server to the local host. In light of this risk, security models that address mobile code are in high demand. We have developed a framework named SECRYT, which enables users of a mobile application to validate the application with integrity and authentication data while simplifying the management and distribution of the authentication data.