We have the great pleasure of speaking with Omer Shlomovits. Omer is a multi-party computation and cryptography expert with KZen. He speaks to us about KZen, his research on threshold signatures for building simpler and more secured wallets, key recovery schemes, and the future of multi-party computation. Fantastic episode choked full of deep knowledge!

LinksL

• https://www.kzencorp.com/
• https://github.com/KZen-networks
• https://twitter.com/KzenCorp
• https://www.youtube.com/watch?v=veIXYIZrSC8
• https://www.facebook.com/groups/800441673459620/

Managing crypto keys is difficult enough for private holders, but when managing large portfolios of cryptocurrency assets on an institutional level, the risk surface increases tremendously. Base Zero has devised a suite of tools to manage multisignature signing over an air-gapped signing device and a sharded backup system to ensure security for large organizations. This unique approach enables these institutions to mitigate risk associated with large fund transfers without any one single person being able to compromise the system and with highly secured disaster recovery.

Links

• https://medium.com/base-zero/the-state-of-security-5667048d3923
• Whitepaper
• Matt Zimmerman: https://www.linkedin.com/in/mdzin/
• Ken Sedgwick: https://www.linkedin.com/in/ken-sedgwick-83541/

We have the pleasure to present one of the more entertaining speakers at SBC19, Dan Robinson. After two talks on Hash Time Locked Contracts (HTLCs), he drops a massive bomb in with a slide deck entitled, "HTLCs (And why they suck)." Lively and entertaining, we have him step through is thoughts on HTLCs and the alternate solutions to this technique that Interleger implements. Bombastic show chocked full information and analysis!

LInks:

• Dan's Twitter
• Dan's Talk
• Dan's Slides
• Interledger Protocol Spec

Back with season 2 of Hashing It Out, and we have a doozy! This Episode features Trail of Bits and ChainSecurity to talk about their amazing last-minute catch of EIP-1283's impact on the Constantinople Ethereum hard fork. We go over how they found it, what recommendations they made, and how the hard fork was postponed to quickly. We also discuss the tooling behind analyzing such a vulnerability, the true impact had it been released, and how the processes around hard fork release candidates could be altered by this detection.

Links: - empire hacking videos - EIP-1283 Analysis - contract upgrade anti-patterns - How contract migration works - Blockchain security contacts - securify - slither - eveem.org