/// <summary>
///
/// </summary>
/// <param name="encryText"></param>
/// <param name="secretKey"></param>
/// <param name="isPadding"></param>
/// <returns></returns>
public static String SM4DecryptECBFromBase64(string encryText, string secretKey, bool isPadding = true)
{
var keyBytes = System.Text.Encoding.UTF8.GetBytes((secretKey + "0000000000000000").Substring(0, 16));
var encryBytes = Helper.Decode(encryText);
var sm4 = new SM4();
var plainBytes = sm4.DecryptECB(encryBytes, keyBytes, isPadding);
return(System.Text.Encoding.UTF8.GetString(plainBytes));
}
/// <summary>
///
/// </summary>
/// <param name="plainText"></param>
/// <param name="secretKey"></param>
/// <param name="isPadding"></param>
/// <returns></returns>
public static String SM4EncryptECBToBase64(string plainText, string secretKey, bool isPadding = true)
{
var keyBytes = System.Text.Encoding.UTF8.GetBytes((secretKey + "0000000000000000").Substring(0, 16));
var plainBytes = System.Text.Encoding.UTF8.GetBytes(plainText);
var sm4 = new SM4();
var encryBytes = sm4.EncryptECB(plainBytes, keyBytes, isPadding);
return(System.Convert.ToBase64String(encryBytes));
}
/// <summary>
///
/// </summary>
/// <param name="plainText"></param>
/// <param name="secretKey"></param>
/// <param name="iv"></param>
/// <param name="isPadding"></param>
/// <returns></returns>
public static String SM4EncryptCBCToHex(string plainText, string secretKey, string iv, bool isPadding = true)
{
var ivBytes = System.Text.Encoding.UTF8.GetBytes((iv + "0000000000000000").Substring(0, 16));
var keyBytes = System.Text.Encoding.UTF8.GetBytes((secretKey + "0000000000000000").Substring(0, 16));
var plainBytes = System.Text.Encoding.UTF8.GetBytes(plainText);
var sm4 = new SM4();
var encryBytes = sm4.EncryptCBC(plainBytes, keyBytes, ivBytes, isPadding);
return(cvt.BytesToHexString(encryBytes));
}
