noun
Computing term for the non-secret half of a key pair used in asymmetric cryptography.
公開鍵暗号方式では、パブリックキーで暗号化し、プライベートキーで復号する。
In public-key cryptography, you encrypt with the public key and decrypt with the private key.
Variant with interpunct; less common in running text.
Loanword from English 'public key', adopted as a technical computing term.