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Security Cryptography Whatever
Signal's Post-Quantum PQXDH, Same-Origin Policy, E2EE in the Browser Revisted
Nov 7, 2023
Signal rolled out post-quantum resilient protocol; Intercepting Jabber TLS; Same-origin policy debate; Secure message formats; E2EE challenges in browsers.
01:19:05
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Quick takeaways
- Signal enhances protocol with Kyber pre keys for post-quantum resilience.
- Same-origin policy limitations challenge web security design logic.
Deep dives
Introducing Kyber pre keys to mitigate quantum attacks on Signal's protocol
Signal recently updated their protocol by adding Kyber pre keys to their triple Diffie-Hellman key exchange to address potential quantum attacks. This enhancement aims to prevent adversaries with sufficient quantum computing power from compromising the security of Signal's encrypted messages. The update was rigorously reviewed and analyzed using Proverif and crypto vera to ensure its effectiveness in mitigating store into Crip Later attacks.
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Discover
highlights
Listen to the best highlights from the podcasts you love and dive into the full episode