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Small stability fixes

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git-svn-id: http://svn.code.sf.net/p/greenshot/code/trunk@1811 7dccd23d-a4a3-4e1f-8c07-b4c1b4018ab4
This commit is contained in:
RKrom 2012-04-21 14:12:03 +00:00
parent 9017331dc5
commit 9b7c7a9b7e
4 changed files with 86 additions and 55 deletions
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63
GreenshotPlugin/Core/EncryptionHelper.cs
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@ -6,6 +6,7 @@ using System.IO;
namespace GreenshotPlugin.Core {
public static class EncryptionHelper {
private static readonly log4net.ILog LOG = log4net.LogManager.GetLogger("EncryptionHelper");
private const string RGBIV = "dlgjowejgogkklwj";
private const string KEY = "lsjvkwhvwujkagfauguwcsjgu2wueuff";
@ -15,19 +16,23 @@ namespace GreenshotPlugin.Core {
/// <param name="ClearText">the string to call upon</param>
/// <returns>an encryped string in base64 form</returns>
public static string Encrypt(this string ClearText) {
byte[] clearTextBytes = Encoding.ASCII.GetBytes(ClearText);
string returnValue = null;
SymmetricAlgorithm rijn = SymmetricAlgorithm.Create();
using (MemoryStream ms = new MemoryStream()) {
byte[] rgbIV = Encoding.ASCII.GetBytes(RGBIV);
byte[] key = Encoding.ASCII.GetBytes(KEY);
CryptoStream cs = new CryptoStream(ms, rijn.CreateEncryptor(key, rgbIV), CryptoStreamMode.Write);
cs.Write(clearTextBytes, 0, clearTextBytes.Length);
cs.Close();
returnValue = Convert.ToBase64String(ms.ToArray());
try {
byte[] clearTextBytes = Encoding.ASCII.GetBytes(ClearText);
SymmetricAlgorithm rijn = SymmetricAlgorithm.Create();
using (MemoryStream ms = new MemoryStream()) {
byte[] rgbIV = Encoding.ASCII.GetBytes(RGBIV);
byte[] key = Encoding.ASCII.GetBytes(KEY);
CryptoStream cs = new CryptoStream(ms, rijn.CreateEncryptor(key, rgbIV), CryptoStreamMode.Write);
cs.Write(clearTextBytes, 0, clearTextBytes.Length);
cs.Close();
returnValue = Convert.ToBase64String(ms.ToArray());
}
} catch (Exception ex) {
LOG.ErrorFormat("Error encrypting, error: ", ex.Message);
}
return returnValue;
}
@ -38,22 +43,26 @@ namespace GreenshotPlugin.Core {
/// <param name="EncryptedText">a base64 encoded rijndael encrypted string</param>
/// <returns>Decrypeted text</returns>
public static string Decrypt(this string EncryptedText) {
byte[] encryptedTextBytes = Convert.FromBase64String(EncryptedText);
string returnValue = null;
using (MemoryStream ms = new MemoryStream()) {
SymmetricAlgorithm rijn = SymmetricAlgorithm.Create();
byte[] rgbIV = Encoding.ASCII.GetBytes(RGBIV);
byte[] key = Encoding.ASCII.GetBytes(KEY);
CryptoStream cs = new CryptoStream(ms, rijn.CreateDecryptor(key, rgbIV),
CryptoStreamMode.Write);
cs.Write(encryptedTextBytes, 0, encryptedTextBytes.Length);
cs.Close();
returnValue = Encoding.ASCII.GetString(ms.ToArray());
try {
byte[] encryptedTextBytes = Convert.FromBase64String(EncryptedText);
using (MemoryStream ms = new MemoryStream()) {
SymmetricAlgorithm rijn = SymmetricAlgorithm.Create();
byte[] rgbIV = Encoding.ASCII.GetBytes(RGBIV);
byte[] key = Encoding.ASCII.GetBytes(KEY);
CryptoStream cs = new CryptoStream(ms, rijn.CreateDecryptor(key, rgbIV),
CryptoStreamMode.Write);
cs.Write(encryptedTextBytes, 0, encryptedTextBytes.Length);
cs.Close();
returnValue = Encoding.ASCII.GetString(ms.ToArray());
}
} catch (Exception ex) {
LOG.ErrorFormat("Error decrypting {0}, error: ", EncryptedText, ex.Message);
}
return returnValue;