public static string Encrypt(string text)
{
System.Text.ASCIIEncoding encoding = new System.Text.ASCIIEncoding();
byte[] textBytes = encoding.GetBytes(text + HexMD5.Encode(KeyPairs.KEY_PAIR_1));
byte[] keyBytes = encoding.GetBytes(HexMD5.Encode(KeyPairs.KEY_PAIR_2));
int length = textBytes.Length > keyBytes.Length ? keyBytes.Length : textBytes.Length;
for (int i = 0; i < length; i++)
{
textBytes[i] += keyBytes[i];
}
Base64Encoder base64Encoder = new Base64Encoder(textBytes);
byte[] encodedBytes = encoding.GetBytes(base64Encoder.GetEncoded());
return(encoding.GetString(encodedBytes));
}
public static string Decrypt(string text)
{
System.Text.ASCIIEncoding encoding = new System.Text.ASCIIEncoding();
byte[] keyBytes = encoding.GetBytes(HexMD5.Encode(KeyPairs.KEY_PAIR_2));
byte[] encodedTextBytes = encoding.GetBytes(text);
Base64Decoder base64Decoder = new Base64Decoder(encoding.GetChars(encodedTextBytes));
byte[] decodedBytes = base64Decoder.GetDecoded();
int length = decodedBytes.Length > keyBytes.Length ? keyBytes.Length : decodedBytes.Length;
for (int i = 0; i < length; i++)
{
decodedBytes[i] -= keyBytes[i];
}
string decodedText = encoding.GetString(decodedBytes);
return(decodedText.Substring(0, decodedText.Length - HexMD5.Encode(KeyPairs.KEY_PAIR_1).Length));
}
