Verifiable Key Management and TEEs with Turnkey
Update: 2025-10-01
Description
In this episode, Anna Rose and Kobi Gurkan chat with Arnaud Brousseau and Jack Kearney from Turnkey about verifiable key management using trusted execution environments (TEEs). They share how their past work on custody and validators inspired them to build more sophisticated key management tools and some of the qualities TEEs enabled.
The discussion covers a range of challenges and techniques: the role of remote attestation and reproducible builds in ensuring trust, strategies to prevent downgrade attacks, and the use of authorisation and policy layers to reduce misuse of keys while still enabling automation.
Related links:
ZK Whiteboard Sessions is an educational video series produced by ZK Hack. It is focused on the building blocks of zero knowledge technology. Find season 3 of the Whiteboard Sessions as well as previous seasons here.
**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
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**Support the show:**
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Read transcript
The discussion covers a range of challenges and techniques: the role of remote attestation and reproducible builds in ensuring trust, strategies to prevent downgrade attacks, and the use of authorisation and policy layers to reduce misuse of keys while still enabling automation.
Related links:
- Turnkey: a Verifiable Key Management Solution
- Turnkey's Architecture
- StageX
- Reflections on Trusting Trust By Ken Thompson
- How to Prove False Statements: Practical Attacks on Fiat-Shamir
- Turnkey Blog: Remote attestations are useless without reproducible builds
- Episode 339: TEEs with Andrew Miller
ZK Whiteboard Sessions is an educational video series produced by ZK Hack. It is focused on the building blocks of zero knowledge technology. Find season 3 of the Whiteboard Sessions as well as previous seasons here.
**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
**Support the show:**
* Patreon
* ETH - Donation address
* BTC - Donation address
* SOL - Donation address
Read transcript
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