Cryptographic Key

Noun · Security & Infosec

Definitions

  1. A secret or semi-public value used by a cryptographic algorithm to encrypt, decrypt, sign, verify, or derive other secrets. Key management quality often matters more in practice than the theoretical strength of the algorithm itself.

    In plain English: A value used by encryption or signing systems to perform security-sensitive operations.

    Example: "The compromise became critical once the attacker obtained the cryptographic key protecting the signing service."

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