/// <summary>認証付き暗号（AEAD）による本文 暗号化</summary>
/// <param name="cekBytes">コンテンツ暗号化キー（CEK）</param>
/// <param name="ivBytes">初期化ベクトル</param>
/// <param name="aadBytes">追加認証データ（AAD）</param>
/// <param name="payloadBytes">ペイロード</param>
/// <returns>AeadResult</returns>
protected override AeadResult CreateBody(byte[] cekBytes, byte[] ivBytes, byte[] aadBytes, byte[] payloadBytes)
{
AeadA256Gcm aesGcm = new AeadA256Gcm(cekBytes, ivBytes, aadBytes);
aesGcm.Encrypt(payloadBytes);
return(aesGcm.Result);
}
/// <summary>認証付き暗号（AEAD）による本文 復号化</summary>
/// <param name="cekBytes">コンテンツ暗号化キー（CEK）</param>
/// <param name="ivBytes">初期化ベクトル</param>
/// <param name="aadBytes">追加認証データ（AAD）</param>
/// <param name="aeadResult">AeadResult</param>
/// <returns>byte[] </returns>
protected override byte[] DecryptBody(byte[] cekBytes, byte[] ivBytes, byte[] aadBytes, AeadResult aeadResult)
{
AeadA256Gcm aesGcm = new AeadA256Gcm(cekBytes, ivBytes, aadBytes);
return(aesGcm.Decrypt(aeadResult));
}
