/// <summary>
/// 可选择使用 DES/RSA 双向加密函数
/// </summary>
/// <param name="str">待加密的字符串</param>
/// <param name="keyValue">对称加密密钥(密钥长度能且只能是8个字母) </param>
/// <param name="privateKeyFilePath">非对称加密的私钥文件地址</param>
/// <returns>string</returns>
public static string EncryptString(string str, string keyValue, string privateKeyFilePath)
{
string strResult = str;
if (!StringsFunction.CheckValiable(str))
{
return(strResult);
}
// 判断是否指定了对称加密的密钥， 指定则采用 DES 对称加密算法进行加密
if (StringsFunction.CheckValiable(keyValue))
{
DESCrypto dc = new DESCrypto();
strResult = dc.EncryptString(strResult, keyValue, keyValue);
}
// 判断非对称加密的私钥文件是否指定，指定则使用非对称加密算法（RSA）对其进行二次加密
if (StringsFunction.CheckValiable(privateKeyFilePath))
{
string privateKey = FileOP.ReadFile(GetRealFile(privateKeyFilePath));
Regex r = new Regex(@"<Modulus>(.*?)</Exponent>", RegexOptions.IgnoreCase | RegexOptions.Compiled);
MatchCollection mc = r.Matches(privateKey);
string publicKey = "<RSAKeyValue><Modulus>" + mc[0].Groups[1].Value + "</Exponent></RSAKeyValue>";
RSACrypto rc = new RSACrypto();
strResult = rc.RSAEncrypt(publicKey, strResult);
}
return(strResult);
}
/// <summary>
/// 可选择使用 DES/RSA 双向解密函数
/// </summary>
/// <param name="str">待解密的字符串</param>
/// <param name="privateKeyFilePath">非对称加密的私钥文件地址</param>
/// <param name="keyValue">对称加密密钥(密钥长度能且只能是8个字母)</param>
/// <returns>string</returns>
public static string DecryptString(string str, string privateKeyFilePath, string keyValue)
{
string strResult = str;
if (!StringsFunction.CheckValiable(str))
{
return(strResult);
}
// 判断非对称加密的私钥文件是否指定，指定则使用非对称加密算法（RSA）对其进行解密
if (StringsFunction.CheckValiable(privateKeyFilePath))
{
string privateKey = FileOP.ReadFile(GetRealFile(privateKeyFilePath));
RSACrypto rc = new RSACrypto();
strResult = rc.RSADecrypt(privateKey, strResult);
}
// 判断是否指定了对称加密的密钥， 指定则采用 DES 对称加密算法进行解密
if (StringsFunction.CheckValiable(keyValue))
{
DESCrypto dc = new DESCrypto();
strResult = dc.DecryptString(strResult, keyValue);
}
return(strResult);
}
public void ReadFileTest()
{
// Arrange
FileOP.LoadFile(ReadFileTestFile);
DataTable expected = CreateDataTable();
// Act
DataTable actual = FileOP.ReadFile();
// Assert
Assert.IsTrue(AreDataTablesEqual(actual, expected));
}