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Definition: key management

In cryptography, it is the creation, distribution and maintenance of a secret key. It determines how secret keys are generated and made available to both parties; for example, public key systems are widely used for such an exchange. If session keys are used, key management is responsible for generating them and determining when they should be renewed. See QKD, elliptic curve cryptography, Diffie-Hellman, cryptography, session key and security protocol.