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A troca de chaves de Diffie-Hellman é um método de criptografia para trocas de chaves de maneira segura em canal público. Desenvolvido por Whitfield Diffie e Martin Hellman , [ 1 ] [ 2 ] foi um dos primeiros exemplos práticos de métodos de troca de chaves implementado dentro do campo da criptografia, tendo sido publicado em 1976 .
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.
24 de ago. de 2023 · Although it has come to be known as the Diffie-Hellman key exchange, Martin Hellman has proposed that the algorithm be named the Diffie-Hellman-Merkle key exchange instead, to reflect the work that Ralph Merkle put towards public-key cryptography.
- Josh Lake
8 de jun. de 2022 · Diffie-Hellman is an asymmetric cryptographic method used for key exchange or key agreement. It ensures that two or more communication partners agree on a common session key that everyone can use for encryption and decryption.
The Diffie-Hellman key-exchange algorithm is a secure algorithm that offers high performance, allowing two computers to publicly exchange a shared value without using data encryption. This exchanged information is protected with a hash function.
The concept of public key cryptography was introduced by Whitfield Diffie and Martin Hellman in 1976. At that time they proposed the general concept of a "trap-door one-way function", a function whose inverse is computationally infeasible to calculate without some secret "trap-door information"; but they had not yet found a practical ...
Hellman descreve sua invenção da criptografia de chave pública com os colaboradores Whitfield Diffie e Ralph Merkle na Universidade de Stanford na metade da década de 1970. Também relata seu subsequente trabalho em criptografia com Stephen Pohlig (o algoritmo de Pohlig–Hellman ) e outros.
