Security Properties of One-Way Key Chains and Implications for Security Protocols like TLS 1.3

ePrint Report: Security Properties of One-Way Key Chains and Implications for Security Protocols like TLS 1.3

John Preuß Mattsson

One-way key chains or ratchets play a vital role in numerous important security protocols such as TLS 1.3, QUIC, Signal, MLS, EDHOC, and OSCORE. Despite the crucial role they play, very little is known about their security properties. This paper categorizes and examines different key chain constructions, offering a comprehensive overview of their security. Our analysis reveals notable distinctions among the …

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