Podknife - Episode 257: Proof of Solvency with Kostas Chalkias by Zero Knowledge

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Episode 257: Proof of Solvency with Kostas Chalkias

Podcast |: Zero Knowledge
Publisher |: Zero Knowledge Podcast
Media Type |: audio
Podknife tags |: Education,; Interview,; Mathematics,; Technology
Categories Via RSS |: Education,; Mathematics,; Science,; Technology
Publication Date |: Dec 07, 2022
Episode Duration |: 01:12:34

Description
iTunes Summary

This week, Anna (https://twitter.com/annarrose) explores the topic of proof of solvency with Kostas Chalkias (https://twitter.com/kostascrypto), co-founder and chief of Cryptography at MystenLabs (https://github.com/MystenLabs). They cover Kostas’ background in Cryptography and explore his work on Proof of Reserves, otherwise known as Proof of Solvency. They review past Proof of Solvency models using ZKPs and look at the protocols that major centralized exchanges are currently using. Then they dive into the security vulnerabilities, privacy issues, and general bugs that Kostas and his collaborators have identified in these protocols and their recommendations on how to better build Proof of Solvency systems. Here are some additional links for this episode: * Episode 227: Move & Sui with Sam Blackshear from Mysten Labs (https://zeroknowledge.fm/228-2/) * Hard Questions: Update on Cambridge Analytica (https://about.fb.com/news/2018/03/hard-questions-cambridge-analytica/) * Provisions: Privacy-preserving proofs of solvency for Bitcoin exchanges By Dagher, Bünz, Bonneau, Clark and Boneh (CCS-provisions.pdf">https://jbonneau.com/doc/DBBCB15-CCS-provisions.pdf) * Broken Proofs of Solvency in Blockchain Custodial Wallets and Exchanges By Chalkias, Chatzigiannis and Ji (https://eprint.iacr.org/2022/043.pdf) * Groth16 still lives: exploring tradeoffs of modern ZKProof systems - François Garillot Mysten Labs (https://www.youtube.com/watch?v=gQCCdJvszDA&list=PLOEty2U8Y69ULDD8YxqQ8kWg8Qn7N8XHZ&index=6) Join the ZK HACK III - final sessions here (https://zkhack.dev/zkhackIII/) Join the ZK HACK Discord (https://discord.com/invite/tHXyEbEqVN) Today’s episode is sponsored by Aleo (https://www.aleo.org) Aleo is a new Layer-1 blockchain that achieves the programmability of Ethereum, the privacy of Zcash, and the scalability of a rollup. If you’re interested in building private applications then check out Aleo’s programming language called Leo. Visit leo-lang.org (lang.org/">https://leo-lang.org/) to start building. You can also join Aleo’s incentivized testnet3 by downloading and running a snarkOS node. No sign-up is necessary to participate. For questions, join their Discord at aleo.org/discord (https://www.aleo.org/discord). If you like what we do: * Find all our links here! @ZeroKnowledge | Linktree (https://linktr.ee/zeroknowledge) * Subscribe to our podcast newsletter (https://zeroknowledge.substack.com) * Follow us on Twitter @zeroknowledgefm (https://twitter.com/zeroknowledgefm) * Join us on Telegram (https://zeroknowledge.fm/telegram) * Catch us on Youtube (https://zeroknowledge.fm/) * Head to the ZK Community Forum (https://community.zeroknowledge.fm/) * Support our Gitcoin Grant (https://zeroknowledge.fm/gitcoin-grant-329-zkp-2)

This week, Anna explores the topic of proof of solvency with Kostas Chalkias, co-founder and chief of Cryptography at MystenLabs. They cover Kostas’ background in Cryptography and explore his work on Proof of Reserves, otherwise known as Proof of Solvency. They review past Proof of Solvency models using ZKPs and look at the protocols that major centralized exchanges are currently using. Then they dive into the security vulnerabilities, privacy issues, and general bugs that Kostas and his collaborators have identified in these protocols and their recommendations on how to better build Proof of Solvency systems.

Here are some additional links for this episode:

Episode 227: Move & Sui with Sam Blackshear from Mysten Labs
Hard Questions: Update on Cambridge Analytica
CCS-provisions.pdf">Provisions: Privacy-preserving proofs of solvency for Bitcoin exchanges By Dagher, Bünz, Bonneau, Clark and Boneh
Broken Proofs of Solvency in Blockchain Custodial Wallets and Exchanges By Chalkias, Chatzigiannis and Ji
Groth16 still lives: exploring tradeoffs of modern ZKProof systems - François Garillot Mysten Labs

Join the ZK HACK III - final sessions here
Join the ZK HACK Discord

Today’s episode is sponsored by Aleo

Aleo is a new Layer-1 blockchain that achieves the programmability of Ethereum, the privacy of Zcash, and the scalability of a rollup.

If you’re interested in building private applications then check out Aleo’s programming language called Leo. Visit lang.org/">leo-lang.org to start building.

You can also join Aleo’s incentivized testnet3 by downloading and running a snarkOS node. No sign-up is necessary to participate. For questions, join their Discord at aleo.org/discord.

If you like what we do:

Find all our links here! @ZeroKnowledge | Linktree
Subscribe to our podcast newsletter
Follow us on Twitter @zeroknowledgefm
Join us on Telegram
Catch us on Youtube
Head to the ZK Community Forum
Support our Gitcoin Grant