What Application Developers Need To Know About TLS Early Data (0RTT)
Summary
TLS 1.3's 0-RTT early data enables replay attacks on apps lacking anti-replay defenses—upgrading TLS alone can introduce vulnerabilities. It covers mitigations at CDN, proxy, and application layers.
- Published
- Collected
--- id: 1978 title: "What Application Developers Need To Know About TLS Early Data (0RTT)" source_domain: blog.trailofbits.com source_url: "https://blog.trailofbits.com/2019/03/25/what-application-developers-need-to-know-about-tls-early-data-0rtt/" published_at: "2019-03-25T13:00:23Z" tags: ["web-security", "tls", "tls13", "0rtt", "replay-attacks"] phying_url: "https://phying.com/item/1978" lang: en --- # What Application Developers Need To Know About TLS Early Data (0RTT) ## Summary TLS 1.3's 0-RTT early data enables replay attacks on apps lacking anti-replay defenses—upgrading TLS alone can introduce vulnerabilities. It covers mitigations at CDN, proxy, and application layers. ## Intelligence Metadata - **Sources:** blog.trailofbits.com - **Published:** 2019-03-25T13:00:23Z - **Original:** https://blog.trailofbits.com/2019/03/25/what-application-developers-need-to-know-about-tls-early-data-0rtt/ - **Phying News:** https://phying.com/item/1978