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Diffie–Hellman key exchange - Wikipedia

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Diffie–Hellman (DH) key exchange[nb 1] is a mathematical method of securely generating a symmetric cryptographic key over a public channel and was one of the first protocols as conceived by Ralph Merkle and named after Whitfield Diffie and Martin Hellman.[1] DH is one of the earliest practical examples of public key exchange implemented within the field of cryptography. Published in 1976 by Diffie and Hellman, this is the earliest publicly known work that proposed the idea of a private key and a corresponding public key.

Diffie–Hellman key exchange - Wikipedia Jump to content Checked From Wikipedia, the free encyclopedia This is the latest accepted revision , reviewed on 3 May 2026 . Method of exchanging cryptographic keys With Diffie–Hellman key exchange, two parties arrive at a common secret key, without passing the common secret key across the public channel. Diffie–Hellman ( DH ) key exchange [ nb 1 ] is a mathematical method of securely generating a symmetric cryptographic key over a public channel and was one of the first protocols as conceived by Ralph Merkle and named after Whitfield Diffie and

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