Definition ∞ Shared secret derivation is a cryptographic process where two or more parties compute an identical secret key based on mutually exchanged public information, without ever directly transmitting the secret itself. This process ensures that only the intended parties can arrive at the shared key, even if their communication channel is observed by others. It forms the basis for establishing secure communication sessions. This mechanism is fundamental for secure data exchange.
Context ∞ Shared secret derivation is a core concept in cybersecurity news, particularly when discussing secure communication protocols like TLS/SSL and the security of digital transactions. Advances in quantum-resistant cryptography, such as Key Encapsulation Mechanisms, directly relate to new methods for shared secret derivation. Understanding this process is vital for appreciating how digital systems maintain data confidentiality.
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