/// <summary>
/// Encrypts or decrypts data based upon encryption password
/// </summary>
/// <param name="inputData">string data to be encrypted or decrypted</param>
/// <param name="password">Password used for encryption</param>
/// <returns>string containing encrypted or decrypted data</returns>
public static string Encrypt(string inputData, string password)
{
string ReturnValue = "";
string InputData = inputData;
int PasswordLength = password.Length;
char ReadChar, EncryptChar;
int StartPosition, Position, KeyStream;
for (int i = 0; i < InputData.Length; i++)
{
//Get the read position from the given password
Position = i + 1;
int PositionMod = Position % PasswordLength;
if (PositionMod == 0)
{
StartPosition = PositionMod + PasswordLength;
}
else
{
StartPosition = PositionMod;
}
//Get a char from password based upon the read position
ReadChar = Convert.ToChar(password.Substring(StartPosition - 1, 1));
//Convert char to ascii value
KeyStream = Convert.ToInt32(ReadChar);
//Get the char from the input data base upon the loop index
ReadChar = Convert.ToChar(InputData.Substring(i, 1));
//And XORed it with Keystream to encrypt/decrypt the char
if (ReadChar.ToString().Contains("\t"))
{
ReadChar = Convert.ToChar("\0");
}
EncryptChar = Convert.ToChar(Convert.ToInt32(ReadChar) ^ KeyStream);
if (EncryptChar.ToString().Contains("\0"))
{
EncryptChar = Convert.ToChar("\t");
}
ReturnValue += EncryptChar;
}
return(ReturnValue);
}
/// <summary>
/// 读取下一串指定类型的字符放到bufSentence中.
/// </summary>
/// <param name="buff"></param>
/// <param name="readChar"></param>
/// <returns></returns>
int ReadChars(StringBuilder buff, ReadChar readChar)
{
int num = 0;
int data = -1;
while ((data = ReadNext()) != -1)
{
int d = readChar.Transform(data);
if (readChar.IsRead(d))
{
buff.Append((char)d);
num++;
}
else
{
//不是数字回压,要下一步操作
PushBack(data);
break;
}
}
return(num);
}
public static void Main(string[] args)
{
ReadChar objTest = new ReadChar();
AppDomain.CurrentDomain.UnhandledException += new UnhandledExceptionEventHandler(objTest.AppDomainUnhandledException_EventHandler);
Console.WriteLine(s_strTFPath + " " + s_strTFName + " , for " + s_strClassMethod + " , Source ver : " + s_strDtTmVer);
try
{
objTest.RunTest();
}
catch (Exception e)
{
Console.WriteLine(s_strTFAbbrev + " : FAIL The following exception was thorwn in RunTest(): \n" + e.ToString());
objTest._numErrors++;
objTest._exitValue = TCSupport.FailExitCode;
}
//// Finish Diagnostics
if (objTest._numErrors == 0)
{
Console.WriteLine("PASS. "+ s_strTFPath + " " + s_strTFName + " ,numTestcases==" + objTest._numTestcases);
}
else
{
Console.WriteLine("FAIL! "+ s_strTFPath + " " + s_strTFName + " ,numErrors==" + objTest._numErrors);
if (TCSupport.PassExitCode == objTest._exitValue)
{
objTest._exitValue = TCSupport.FailExitCode;
}
}
Environment.ExitCode = objTest._exitValue;
}
/// <summary>
/// 读取下一串指定类型的字符放到bufSentence中.
/// </summary>
/// <param name="buff"></param>
/// <param name="readChar"></param>
/// <returns></returns>
int ReadChars(StringBuilder buff, ReadChar readChar)
{
int num = 0;
int data = -1;
while ((data = ReadNext()) != -1)
{
int d = readChar.Transform(data);
if (readChar.IsRead(d))
{
buff.Append((char)d);
num++;
}
else
{
//不是数字回压,要下一步操作
PushBack(data);
break;
}
}
return num;
}
