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摘要

Decentralized information flow control (DIFC) is a promising model for writing programs with powerful, end-to-end security guarantees. Current DIFC systems that run on commodity hardware can be broadly categorized into two types: language-level and operating system-level DIFC. Language level solutions provide no guarantees against security violations on system resources, like files and sockets. Operating system solutions can mediate accesses to system resources, but are inefficient at monitoring the flow of information through fine-grained program data structures.