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How Do We Protect An Encryption Key? Meet Key Wrapping

The protection of encryption keys is important, and where they often have to be protected. This is especially important for a symmetric key or for a private key of a public key pair. For this, we can use key wrapping and make sure the key cannot be used, unless we have a secret master key. One standard for this is RFC 5649 [here] and which defines the Advanced Encryption Standard (AES) Key Wrap…