diffie hellman

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A public-key cryptography protocol, first published in the 1970s It allows two parties to establish a shared secret over an insecure communications channel and is used within IKE to establish session keys
Diffie and Hellman were the first to describe viable public-key distribution and signature cryptograms in a paper in 1976 Their method, which is based on discrete logarithms, is still used in some systems, but RSA is more widely used in smart card schemes
A public-key method (over an insecure medium) for establishing an ephemeral shared secret between parties It is a component of IKE that establishes Perfect Forward Secrecy
Public Key algorithm
A key-agreement algorithm used to create a random number that can be used as a key over an insecure channel
Public key crypto algorithm that generates a shared secret between two entities after they publicly share some randomly generated data
The first public key algorithm, invented in 1976, using discrete logarithms in a finite field
The first public-key algorithm ever invented It gets its security from the difficulty of calculating discrete logarithms in a finite field Can be used for key distribution
A public-key cryptography protocol that allows two parties to establish a shared secret over an unsecure communications channel IKE uses Diffie-Hellman to establish session keys
A public key algorithm which can be used for deriving and distributing private keys over insecure networks Diffie-Hellman itself cannot be used to encrypt or decrypt messages The patent on the algorithm expired on April 29, 1997 (See public key cryptography and private key cryptography in the hard copy dictionary )
the first workable public key cryptographic system still widely used in Internet browsers such as Secure Socket Layer (SSL) and Internet Protocol Security (IPsec) Diffie-Hellman confidants use public (insecure) communication lines to agree on a shared secret key