/// <summary>MAC値を検証</summary>
/// <param name="msg">メッセージ（文字列）</param>
/// <param name="ekha">MACアルゴリズム列挙型</param>
/// <param name="key">キー（文字列）</param>
/// <param name="mac">MAC値（base64文字列）</param>
/// <returns>検証結果( true:検証成功, false:検証失敗 )</returns>
public static bool VerifyMAC(string msg, EnumKeyedHashAlgorithm ekha, string key, string mac)
{
return(MsgAuthCode.VerifyMAC(
CustomEncode.StringToByte(msg, CustomEncode.UTF_8),
ekha, CustomEncode.StringToByte(key, CustomEncode.UTF_8),
CustomEncode.FromBase64String(mac)));
}
/// <summary>MAC値を検証</summary>
/// <param name="msg">メッセージ（バイト配列）</param>
/// <param name="ekha">MACアルゴリズム列挙型</param>
/// <param name="key">キー（バイト配列）</param>
/// <param name="mac">MAC値（バイト配列）</param>
/// <returns>検証結果( true:検証成功, false:検証失敗 )</returns>
public static bool VerifyMAC(byte[] msg, EnumKeyedHashAlgorithm ekha, byte[] key, byte[] mac)
{
// 文字列にしてから計算
string paramMac = CustomEncode.ToBase64String(mac);
string calcMac = CustomEncode.ToBase64String(MsgAuthCode.GetMAC(msg, ekha, key));
return(paramMac == calcMac);
}
/// <summary>MAC値を返す。</summary>
/// <param name="msg">メッセージ（バイト配列）</param>
/// <param name="ekha">MACアルゴリズム列挙型</param>
/// <param name="key">キー（バイト配列）</param>
/// <returns>MAC値（バイト配列）</returns>
public static byte[] GetMAC(byte[] msg, EnumKeyedHashAlgorithm ekha, byte[] key)
{
return(MsgAuthCode.GetKeyedHashBytes(msg, ekha, key));
}
/// <summary>MAC値を返す。</summary>
/// <param name="msg">メッセージ（文字列）</param>
/// <param name="ekha">MACアルゴリズム列挙型</param>
/// <param name="key">キー（文字列）</param>
/// <returns>MAC値（base64文字列）</returns>
public static string GetMAC(string msg, EnumKeyedHashAlgorithm ekha, string key)
{
return(CustomEncode.ToBase64String(MsgAuthCode.GetMAC(
CustomEncode.StringToByte(msg, CustomEncode.UTF_8),
ekha, CustomEncode.StringToByte(key, CustomEncode.UTF_8))));
}