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This works well with umbrella specify byte IV length for where you have multiple OTP.
This works well with umbrella specify byte IV length for where you have multiple OTP.
Instead you could first base 64 encode the ciphertext and IV separately. Return the ID for the engine, or an empty binary if there is no id set. If you need to use a password rather than a binary key you are going to have to bring in a package that implements a strong KDF. We we'll use pattern matching to extract these components from the encrypted and encoded value we passed into decrypt :. See padding oracle And if you authenticate the crypto please make sure that you use a constant time compare when checking the authentication otherwise this can be utilized to crack the crypto.