OSRTLP is platform-independent tool for offline submission written in C++. It is based on non-parallelizable RSA time-lock puzzles. OSRTLP enables an author being currently offline to commit to his document before the deadline by continuously solving an RSA puzzle based on that document. When regaining Internet connectivity, he submits his document along with the puzzle solution which is a proof for the timely completion of the document. On the other side the institution receiving the document runs OSRTLP to quickly verify the puzzle solution.

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Yves Jerschow

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jerschow(at)cs.uni-duesseldorf.de

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Publications

Yves Igor Jerschow, Martin Mauve
Offline Submission with RSA Time-Lock Puzzles. TSP 2010: Proceedings of the Third IEEE International Symposium on Trust, Security and Privacy for Emerging Applications, Bradford, UK, June 2010.

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