Crypto-shredding is the deletion of encrypted data by deletion of the encryption key.

Crypto-shredding is the practice of 'deleting' data by deliberately deleting or overwriting the encryption keys. This requires that the data have been encrypted. Data comes in these three states: data at rest, data in transit and data in use. In the CIA triad of confidentiality, integrity, and availability all three states must be adequately protected.

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