The Diffie-Hellman algorithm was a stunning breakthrough in cryptography that showed cryptographic keys could be securely exchanged in plain sight. Here’s how it works.

At the core of Diffie-Hellman is the discrete logarithm problem, which makes it computationally difficult for attackers to intercept and decode the shared secret key exchanged between two parties.

Men behind Diffie-Hellman key exchange receive top computer science prize Pioneering work 40 years ago lead to PGP, TLS, and all your fav crypto protocols.

The researchers focus on Diffie-Hellman key exchange, a method for two parties to securely share a cryptographic key that was first published in 1976 and is widely used.