AES-GCM-SIV
Imperial Violet
MAY 13, 2017
AEADs combine encryption and authentication in a way that provides the properties that people generally expect when they “encrypt” something. This is great because, historically, handing people a block cipher and a hash function has resulted in a lot of bad and broken constructions. Standardising AEADs avoids this. Common AEADs have a sharp edge though: you must never encrypt two different messages with the same key and nonce.
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