/// <summary>
/// 解密
/// </summary>
/// <param name="msg">加密内容</param>
/// <param name="cryptInfo">解密信息(key,iv)</param>
/// <returns></returns>
public static string Decryption(string msg, CryptInfo cryptInfo)
{
var orgInfo = DecryptCryptInfo(cryptInfo);
return(Decryption(msg, orgInfo.KeyStr, orgInfo.IvStr));
}