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Formal Development Of Secure Email, Dan Zhou, Joncheng C. Kuo, Susan Older, Shiu-Kai Chin
Formal Development Of Secure Email, Dan Zhou, Joncheng C. Kuo, Susan Older, Shiu-Kai Chin
Electrical Engineering and Computer Science - All Scholarship
Developing systems that are assured to be secure requires precise and accurate descriptions of specifications, designs, implementations, and security properties. Formal specification and verification have long been recognized as giving the highest degree of assurance. In this paper, we describe a software development process that integrates formal verification and synthesis. We demonstrate this process by developing assured sender and receiver C++ code for a secure electronic mail system, Privacy Enhanced Mail. We use higher-order logic for system-requirements specification, design specifications and design verification. We use a combination of higher-order logic and category theory and tools supporting these formalisms to refine …