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public key

noun

in cryptography, a value associated with a particular person and used to decrypt messages from that person or encrypt messages to him/her

Examples

A public key is always associated with a single private key, and can be used to verify digital signatures generated using that private key.

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Examples from the Web for public key
Historical Examples
  • The second lock -- your private key -- only comes off with your public key.

    Little Brother

    Cory Doctorow
  • Like, what if I tricked you into thinking that my public key was your boss's public key?

    Little Brother

    Cory Doctorow
  • You'd encrypt the message with your private key and my public key.

    Little Brother

    Cory Doctorow
  • I typed, then encrypted it to my public key and mailed it off.

    Little Brother

    Cory Doctorow
  • Then I came to one that was only encrypted to my public key.

    Little Brother

    Cory Doctorow
  • Because if they can decrypt it with your public key, it can only have been encrypted with your private key.

    Little Brother

    Cory Doctorow
  • I signed it and encrypted it with my private key and the public key Masha had provided.

    Little Brother

    Cory Doctorow
  • So instead of just encrypting the message with your private key, you also encrypt it with your boss's public key.

    Little Brother

    Cory Doctorow
  • The first lock -- the boss's public key -- only comes off when combined with your boss's private key.

    Little Brother

    Cory Doctorow
  • Now, the easiest way to fix this is to really widely advertise your public key.

    Little Brother

    Cory Doctorow

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