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by agwa
3996 days ago
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A rainbow table? The key space is 2^256. If you're talking about building a table containing the ciphertext of "HELO" with all possible keys, that's totally infeasible. As you correctly state, NaCl requires each nonce/key pair to be unique. If you start the nonce at 0 for a given key and increment it for each message, as is commonly done, that satisfies the requirement and is secure. |
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