Diffie-Hellman key exchange -LRB- D-H -RRB- is a cryptographic protocol that allows two parties that have no prior knowledge of each other to jointly establish a shared secret key over an insecure communications channel .

Diffie-Hellman key exchange -LRB- D-H -RRB- is a cryptographic protocol that allows two parties that have no prior knowledge of each other to establish together a shared secret key over an insecure communications channel .
