decrypt abstract method
Decrypts the provided ciphertext along with a nonce, and optional associated data.
Returns the plaintext and may write the result into the dst if provided.
Returns null if decryption fails due to authentication failure.
Implementation
List<int>? decrypt(
List<int> nonce,
List<int> ciphertext, {
List<int>? associatedData,
List<int>? dst,
});