Key Exchange
N/A
密钥交换
Key Exchange · N/A · 密钥交换 · kee eks-CHAYNJ · key agreement · Diffie-Hellman · Cryptography · crypto · tls · handshakeCryptographykey agreement Diffie-Hellman/kee eks-CHAYNJ/
Also known as: key agreement, Diffie-Hellman
Last updated August 8, 2026
Definition
Key exchange is how two parties agree on a shared secret key over an insecure channel, often using public-key math, so they can encrypt further messages symmetrically.
Real-World Example
During a TLS handshake, your browser and a website perform a key exchange so subsequent page data can be encrypted quickly with a shared session key.
References
Related terms
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