Table of Contents
Key Encapsulation: A New Paradigm for Public-Key Encryption
Summary
Original Approach
Limitations
Traditional Remedies
New Remedy: Two Layers
Addressing the Limitations
Don’t We Do This Already?
Two-Layer Approach
Public-Key Layer: Key Encapsulation
Two Layers with Key Encapsulation
Encapsulation Using RSA
Encapsulation Using DH
Symmetric-Key Layer
Key Transport in Two Layers (similar for message encryption)
Symmetric-Key Key Transport
Key Agreement in Two Layers (one key-pair case)
Symmetric-Key Key Agreement
More on SSL/TLS Handshake
Standardization
Key Encapsulation in Standards
Related Research
S/MIME WG Proposals
Conclusions
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Author: Burt Kaliski & Russ Housley
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