public static string ReadPass(string _decryptionKeyPlain,
string _fileDir,
string _websiteURL,
string _numOfIterations)
{
string ret;
int NumOfIterations = _numOfIterations == "" ? 0 : Convert.ToInt32(_numOfIterations); //avoid exceptions when empty
if (_decryptionKeyPlain == "")
{
return("Please fill in the encryption key first");
}
if (NumOfIterations < CandyStore.GetParameters().MinNumOfIterationsParm)
{
return("Safety: Number of iterations must exceed" + Convert.ToString(CandyStore.GetParameters().MinNumOfIterationsParm));
}
string DecryptionKey = CandyStore.PBKDF2Service(_decryptionKeyPlain, NumOfIterations);
try
{
ret = ReadPassService.ReadPass(_websiteURL, DecryptionKey, _fileDir, NumOfIterations);
}
catch
{
return("Could not read key");
}
return("Your pass: " + ret);
}
public static string CreatePass(string _encryptionKeyPlain,
string _fileDir,
string _websiteURL,
string _websitePass,
string _numOfIterations)
{
int NumOfIterations = _numOfIterations == ""? 0:Convert.ToInt32(_numOfIterations); //avoid exceptions when empty
if (NumOfIterations < CandyStore.GetParameters().MinNumOfIterationsParm)
{
return("Safety: Number of iterations must exceed" + Convert.ToString(CandyStore.GetParameters().MinNumOfIterationsParm));
}
if (_encryptionKeyPlain == "")
{
return("Please fill in the encryption key first");
}
if (_websiteURL == "")
{
return("Please fill in the website URL");
}
if (_websitePass == "")
{
return("Please fill in the website pass");
}
string EncryptionKey = CandyStore.PBKDF2Service(_encryptionKeyPlain, NumOfIterations);
try
{
if (CreatePassService.CreatePass(_websiteURL, _websitePass, EncryptionKey, _fileDir, NumOfIterations))
{
return("Pass encryption completed for website:" + _websiteURL);
}
else
{
return("Pass encryption failed (did you allow storage permissions for this app?)");
}
}
catch
{
return("Could not create key");
}
}
public static string RemoveStorageSpecific(string _fileDir, string _websiteURL)
{
string ret;
try
{
string uniqueId = CandyStore.PBKDF2Service(_websiteURL, CandyStore.GetParameters().MinNumOfIterationsParm);
uniqueId = CandyStore.ToHexString(uniqueId);
ret = StorageHelper.RemoveStorageSpecific(_fileDir, uniqueId);
}
catch
{
return("Removal failed");
}
return(ret);
}
public static string ReadPass(string _websiteString, string _decryptionKey, string _fileDir, int _numOfIterations)
{
string ret = "";
string uniqueId = CandyStore.PBKDF2Service(_websiteString, _numOfIterations);
uniqueId = CandyStore.ToHexString(uniqueId);
try
{
PassObject PassObject = StorageHelper.ReadBlobToObject(uniqueId, _fileDir);
ret = EncryptDecryptStore.Decrypt(PassObject.GetEncryptedPass(), _decryptionKey);
}
catch
{
ret = "Cannot read, does this website exist as pass?";
}
return(ret);
}