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public key

Line breaks: pub¦lic key

Definition of public key in English:

noun

Computing
A cryptographic key that can be obtained and used by anyone to encrypt messages intended for a particular recipient, such that the encrypted messages can be deciphered only by using a second key that is known only to the recipient (the private key): [as modifier]: public key cryptography
More example sentences
  • Now anyone can use your public key to encrypt email messages to you, but only you alone can use your private key for decryption.
  • Click ‘encrypt’ and the message is automatically encrypted with the public key of the recipient.
  • When users want to send a secure message to another user, they use the recipient's public key to encrypt the message.

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