private void EncryptDictionary(BlockingCollection <string> collection,
BlockingCollection <Tuple <string, byte[]> > encryptedCollectionInBytes)
{
while (!collection.IsCompleted)
{
string str;
try
{
str = collection.Take();
}
catch (Exception e)
{
Console.WriteLine("Cannot take from already completed collection!");
Console.WriteLine("----------------");
Console.WriteLine();
Console.WriteLine("----------------");
break;
}
char[] charArray = str.ToCharArray();
byte[] passwordAsBytes = Array.ConvertAll(charArray, PasswordFileHandler.GetConverter());
byte[] encryptedPassword = _messageDigest.ComputeHash(passwordAsBytes);
try
{
encryptedCollectionInBytes.Add(new Tuple <string, byte[]>(str, encryptedPassword));
}
catch (InvalidOperationException e)
{
Console.WriteLine("All items are already Encrypted! Finishing this thread!");
break;
}
}
encryptedCollectionInBytes.CompleteAdding();
}
/// <summary>
/// Checks a single word (or rather a variation of a word): Encrypts and compares to an entry in the password file
/// </summary>
/// <param name="userInfo">Username, encrypted password from the password file</param>
/// <param name="possiblePassword">Username, encrypted password pair from the password file</param>
private void CheckSingleWord(UserInfo userInfo, String possiblePassword)
{
char[] charArray = possiblePassword.ToCharArray();
byte[] passwordAsBytes = Array.ConvertAll(charArray, PasswordFileHandler.GetConverter());
byte[] encryptedPassword = _messageDigest.ComputeHash(passwordAsBytes);
if (CompareBytes(userInfo.EntryptedPassword, encryptedPassword)) //compares byte arrays
{
_result = new UserInfoClearText(userInfo.Username, possiblePassword);
//Console.WriteLine(userInfo.Username + " " + possiblePassword);
}
}
/// <summary>
/// Checks a single word (or rather a variation of a word): Encrypts and compares to all entries in the password file
/// </summary>
/// <param name="userInfos"></param>
/// <param name="possiblePassword">List of (username, encrypted password) pairs from the password file</param>
/// <returns>A list of (username, readable password) pairs. The list might be empty</returns>
private IEnumerable <UserInfoClearText> CheckSingleWord(IEnumerable <UserInfo> userInfos, String possiblePassword)
{
char[] charArray = possiblePassword.ToCharArray();
byte[] passwordAsBytes = Array.ConvertAll(charArray, PasswordFileHandler.GetConverter());
byte[] encryptedPassword = _messageDigest.ComputeHash(passwordAsBytes);
//string encryptedPasswordBase64 = System.Convert.ToBase64String(encryptedPassword);
List <UserInfoClearText> results = new List <UserInfoClearText>();
foreach (UserInfo userInfo in userInfos)
{
if (CompareBytes(userInfo.EntryptedPassword, encryptedPassword))
{
results.Add(new UserInfoClearText(userInfo.Username, possiblePassword));
Console.WriteLine(userInfo.Username + " " + possiblePassword);
}
}
return(results);
}
/// <summary>
/// Checks a single word (or rather a variation of a word): Encrypts and compares to all entries in the password file
/// </summary>
/// <param name="userInfos"></param>
/// <param name="possiblePassword">List of (username, encrypted password) pairs from the password file</param>
/// <param name="hashes">Passed by ref to change the value</param>
/// <returns>A list of (username, readable password) pairs. The list might be empty</returns>
private IList <FullUser> CheckSingleWord(IList <UserInfo> userInfos, string possiblePassword, ref int hashes)
{
char[] charArray = possiblePassword.ToCharArray();
byte[] passwordAsBytes = Array.ConvertAll(charArray, PasswordFileHandler.GetConverter());
byte[] encryptedPassword = HashAlgorithm.ComputeHash(passwordAsBytes);
hashes++;
//string encryptedPasswordBase64 = System.Convert.ToBase64String(encryptedPassword);
List <FullUser> results = new List <FullUser>();
foreach (UserInfo userInfo in userInfos)
{
if (CompareBytes(userInfo.EntryptedPassword, encryptedPassword))
{
results.Add(new FullUser(userInfo, possiblePassword));
Console.WriteLine(userInfo.Username + " " + possiblePassword);
}
}
FilterWhatsDone(userInfos, results);
return(results);
}
