@misc{cryptoeprint:2015:482, author = {Jia Liu and Saqib A. Kakvi and Bogdan Warinschi}, title = {Extractable Witness Encryption and Timed-Release Encryption from Bitcoin}, howpublished = {Cryptology ePrint Archive, Report 2015/482}, year = {2015}, url = {https://eprint.iacr.org/2015/482}, }