An Efficient and Secure Key Exchange Method: X25519 and Blake2b

Well, it all started in 1976, when Diffie and Hellman proposed the Diffie-Hellman key exchange method. And we are still using it today. The discrete log methods have been replaced by elliptic curve methods, and we have added in more authentication of the public key, but it’s still roughly the same method. For this Alice generates a, and Bob generates b, and they compute their…

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