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Diffie–Hellman (DH) key exchange is a mathematical method of securely exchanging cryptographic keys over a public channel and was one of the first public-key protocols as conceived by Ralph Merkle and named after Whitfield Diffie and Martin Hellman.
- Troca de chaves de Diffie–Hellman
O método da troca de chaves de Diffie-Hellman permite que...
- Curva elíptica Diffie-Hellman
Diffie-Hellman de curva elíptica ( ECDH) é um protocolo para...
- Elliptic-curve Diffie–Hellman
Elliptic-curve Diffie–Hellman (ECDH) is a key agreement...
- Troca de chaves de Diffie–Hellman
Introdução Matemática. As curvas elípticas usadas em Criptografia são definidas tipicamente em dois tipos de campos finitos: campos de característica impar p ( ,, onde p > 3 é um número principal grande) e campos da característica par ( ).Quando a distinção não é importante nós denotamos ambos eles como ,onde q = p ou q = 2m.
Bailey Whitfield 'Whit' Diffie ForMemRS (born June 5, 1944) is an American cryptographer and mathematician and one of the pioneers of public-key cryptography along with Martin Hellman and Ralph Merkle. Diffie and Hellman's 1976 paper New Directions in Cryptography introduced a radically new method of distributing cryptographic keys ...
The ephemeral Diffie–Hellman key exchange is often signed by the server using a static signing key. If an adversary can steal (or obtain through a court order) this static (long term) signing key, the adversary can masquerade as the server to the client and as the client to the server and implement a classic man-in-the-middle attack. [1] History.
