pub fn encrypt_data(
plaintext: &[u8],
group_secret: &GroupSecret,
nonce: XAeadNonce,
) -> Result<Vec<u8>, XAeadError>pub fn encrypt_data(
plaintext: &[u8],
group_secret: &GroupSecret,
nonce: XAeadNonce,
) -> Result<Vec<u8>, XAeadError>