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Leveraging Linear Decryption: Rate-1 Fully-Homomorphic Encryption and Time-Lock Puzzles
Fully-Homomorphic Encryption High-Rate Time-Lock Puzzles
2019/6/19
We show how to combine a fully-homomorphic encryption scheme with linear decryption and a linearly-homomorphic encryption schemes to obtain constructions with new properties. Specifically, we present ...
Time-lock puzzles allow one to encrypt messages for the future, by efficiently generating a puzzle with a solution ss that remains hidden until time TT has elapsed. The solution is required to be conc...
Two-Round Concurrent Non-Malleable Commitment from Time-Lock Puzzles
Non-malleable Commitments Time-lock Puzzles Two-round
2017/3/27
Non-malleable commitment is a fundamental cryptographic tool for preventing man-in-the-middle attacks. Since its proposal by Dolev, Dwork, and Noar in 1991, a rich line of research has steadily reduce...
Time-Lock Puzzles from Randomized Encodings
2015/12/30
Time-lock puzzles are a mechanism for sending messages “to the future”. A sender can
quickly generate a puzzle with a solution s that remains hidden until a moderately large
amount of time t has ela...