Here’s a sample of talks and lectures captured on video:

• “Cryptography in the Proof-of-Work Era,” Cyber Week Tel Aviv 2021 (Academic Session), Tel Aviv University, Israel, July 19-22, 2021
• “Cryptography in the Proof-of-Work Era,” AtheCrypt 2021, January 23, 2021 (password: CryptoFun2021Athens)
• “Foundational Aspects of Blockchain Protocols,” Tata Institute for Foundational Research, Bangalore, India, January 15-17, 2020
  • Lecture 1
  • Lecture 2
• “Probabilistic Termination and Composition of Cryptographic Protocols,” Secure Multiparty Computation, Theory and Practice, Indian Institute of Science, Bangalore, India, January 19-22, 2020
• “Signatures of Work, or How to Bypass the Consensus Impossibility Result,” BICI — Lower Bounds in Cryptography workshop, Bertinoro, Italy, July 7-12, 2019
• “A Consensus Taxonomy in the Blockchain Era,” CRYPTO 2018 rump session
• “IACR 2018 Fellows Ceremony,” CRYPTO 2018 rump session
• “Proofs of Work for Blockchain Protocols,” CRYPTO 2017 rump session
• “Broadcast and Consensus in Cryptography,” IISc-IACR School on Cryptography, IISc, Bangalore, India, January 4-8, 2017
  • Lecture 1
  • Lecture 2
• “Constant-Round Asynchronous Multiparty Computation Based on One-Way Functions,” ASIACRYPT 2016, Hanoi, Vietnam, December 2016
• “Bootstrapping the Blockchain,” DIMACS Workshop on Cryptography and its Interactions: Learning Theory, Coding Theory, and Data Structures, July 11-13, 2016
• “Blockchain-based Consensus,” Keynote Talk, International Conference On Principle of DIstributed Systems — OPODIS 2015, Renne, France, December 14-17, 2015
• “Broadcast- (and Round-) Efficient Secure Multiparty Computation,” Microsoft Research, February 2014
• “A Framework for the Sound Specification of Cryptographic Tasks,” Microsoft Research, August 2010