Wiktionary
key exchange
n. (context cryptography English) An exchange of peers' keys at initialization phase of connection.
Wikipedia
Key Exchange
Key Exchange is a 1985 American romantic comedy film starring Brooke Adams. The film is based on a play by Kevin Wade.
Usage examples of "key exchange".
At Potsdamer Platz, the key exchange point, the first school of mackerel, an Action Squad, was bagged.
Rachel extended a hand, wrapped her fingers around the probe and waited for it to bleep, signifying successful quantum key exchange.