CommCSL: Proving Information Flow Security for Concurrent Programs using Abstract Commutativity. (arXiv:2211.08459v1 [cs.CR])

Information flow security ensures that the secret data manipulated by a
program does not influence its observable output. Proving information flow
security is especially challenging for concurrent programs, where operations on
secret data may influence the execution time of a thread and, thereby, the
interleaving between different threads. Such internal timing channels may
affect the observable outcome of a program even if an attacker does not observe
execution times. Existing verification techniques for information flow security
in concurrent programs attempt …

flow flow security information security