chaCha20Poly1305Decrypt static method

List<int> chaCha20Poly1305Decrypt({
  1. required List<int> key,
  2. required List<int> nonce,
  3. required List<int> cipherText,
  4. List<int>? assocData,
})

Decrypt data using the ChaCha20-Poly1305 authenticated encryption algorithm. Requires a key, nonce, ciphertext, and optional associated data.

Implementation

static List<int> chaCha20Poly1305Decrypt({
  required List<int> key,
  required List<int> nonce,
  required List<int> cipherText,
  List<int>? assocData,
}) {
  final chacha = ChaCha20Poly1305(key);
  final decrypt =
      chacha.decrypt(nonce, cipherText, associatedData: assocData);

  if (decrypt != null) {
    return decrypt;
  }
  throw const MessageException("ChaCha20-Poly1305 decryption fail");
}