public void Add(string session, string hash, string text, HashingMethod method)
{
using (var reader = ExecReader (SELECT_COLLISION_ID, hash.ToSQLiteParam ("@hash"))) {
if (!reader.HasRows) {
ExecNonQuery (
INSERT_COLLISION,
hash.ToSQLiteParam ("@hash"),
text.ToSQLiteParam ("@text"),
session.ToSQLiteParam ("@session"),
method.Algorithm.ToString ().ToSQLiteParam ("@type")
);
}
else {
using (var reader2 = ExecReader (SELECT_SESSION_ID, session.ToSQLiteParam ("@session"))) {
if (!reader2.HasRows) {
ExecNonQuery (
INSERT_COLLISION_FROM_SESSION,
session.ToSQLiteParam ("@session"),
hash.ToSQLiteParam ("@hash")
);
}
}
}
}
}
public void Add(string session, string hash, string text, HashingMethod method)
{
using (var reader = ExecReader(SELECT_COLLISION_ID, hash.ToSQLiteParam("@hash"))) {
if (!reader.HasRows)
{
ExecNonQuery(
INSERT_COLLISION,
hash.ToSQLiteParam("@hash"),
text.ToSQLiteParam("@text"),
session.ToSQLiteParam("@session"),
method.Algorithm.ToString().ToSQLiteParam("@type")
);
}
else
{
using (var reader2 = ExecReader(SELECT_SESSION_ID, session.ToSQLiteParam("@session"))) {
if (!reader2.HasRows)
{
ExecNonQuery(
INSERT_COLLISION_FROM_SESSION,
session.ToSQLiteParam("@session"),
hash.ToSQLiteParam("@hash")
);
}
}
}
}
}
public static void Run(string[] hashes, HashingMethod method, string alphabet, int length = 6)
{
#if LIBNOTIFYNET
Notification.Send ("Hashlecter", "Started bruteforce attack.", 5000);
#endif
// Stopwatch for measuring time
var watch = Stopwatch.StartNew ();
if (!MainClass.options.silent) {
// Update_Screen task
var update = Task.Factory.StartNew (() => Update_Screen (watch));
// Update_Stats task
var update_avg = Task.Factory.StartNew (Update_Stats);
}
string output;
var alphabet_first = alphabet.First ();
var alphabet_last = alphabet.Last ();
for (var ihash = 0; ihash < hashes.Length; ihash++) {
// Skip comments
if (hashes [ihash].StartsWith ("#"))
continue;
current_hash = hashes [ihash];
// Incremental bruteforce
if (MainClass.options.incremental) {
// Calculate maximum
for (var i = 1; i <= length; i++)
bruteforce_max += Math.Pow (i, alphabet.Length);
for (var curlen = 1; curlen <= length; ++curlen) {
// Initialize buffer
var accum = new StringBuilder (new String (alphabet_first, curlen));
while (true) {
++generated;
++avg_tmp;
var value = accum.ToString ();
current_str = value;
var success = method.CheckHash (current_hash, value, out output);
if (success) {
++cracked;
MainClass.db.Add (MainClass.session, current_hash, value, method);
#if LIBNOTIFYNET
var _libnotifynet_format = string.Format ("Successfully cracked {0} hash:\n{1}\nValue was: {2}", method.Name, current_hash, output);
Notification.Send ("Hashlecter", _libnotifynet_format, 7500, 250, 100);
#endif
done = true;
goto end;
}
if (value.All (val => val == alphabet_last))
break;
// TODO: Parallelize this
for (var i = curlen - 1; i >= 0; --i) {
if (accum [i] != alphabet_last) {
accum [i] = alphabet [alphabet.IndexOf (accum [i]) + 1];
break;
} else
accum [i] = alphabet_first;
}
}
}
}
// Fixed-length bruteforce
else {
// Calculated maximum
bruteforce_max = Math.Pow (length, alphabet.Length);
// Initialize buffer
var accum = new StringBuilder (new String (alphabet_first, length));
while (true) {
++generated;
++avg_tmp;
var value = accum.ToString ();
current_str = value;
var success = method.CheckHash (current_hash, value, out output);
if (success) {
++cracked;
MainClass.db.Add (MainClass.session, current_hash, value, method);
#if LIBNOTIFYNET
var _libnotifynet_format = string.Format ("Successfully cracked {0} hash:\n{1}\nValue was: {2}", method.Name, current_hash, output);
Notification.Send ("Hashlecter", _libnotifynet_format, 7500, 250, 100);
#endif
done = true;
goto end;
}
if (value.All (val => val == alphabet_last))
break;
// TODO: Parallelize this
for (var i = length - 1; i >= 0; --i) {
if (accum [i] != alphabet_last) {
accum [i] = alphabet [alphabet.IndexOf (accum [i]) + 1];
break;
} else
accum [i] = alphabet_first;
}
}
}
end: {}
}
watch.Stop ();
// Display the correct stats after exiting
if (!MainClass.options.silent) {
Update_Screen (watch, force: true);
}
}
public static void Run(string[] hashes, HashingMethod method, string dictionary_path)
{
#if LIBNOTIFYNET
Notification.Send("Hashlecter", "Started dictionary attack.", 5000);
#endif
// Dictionary buffer
string[] dict = new string[BUFFER_SZ];
// Stopwatch for measuring time
var watch = Stopwatch.StartNew();
if (!MainClass.options.silent)
{
// Update_Screen task
var update = Task.Factory.StartNew(() => Update_Screen(watch));
// Update_Stats task
var update_avg = Task.Factory.StartNew(Update_Stats);
}
// Open dictionary file for reading
using (var fdict = File.OpenRead(dictionary_path))
using (var reader = new StreamReader(fdict)) {
// Iterate over all hashes in the array
for (var i = 0; i < hashes.Length; i++)
{
// Skip comments
if (hashes[i].StartsWith("#"))
{
continue;
}
current_hash = hashes[i];
// Check if there is still something in the dictionary to read
while (reader.BaseStream.Position < reader.BaseStream.Length)
{
// Iterate over all values in [0..BUFFER_SZ]
for (var j = 0; j < BUFFER_SZ; j++)
{
// Add the next line from the dictionary to the buffer
dict[j] = reader.ReadLine();
// Increment the loaded variable if the line is valid
if (dict[j] != null)
{
dict[j] = dict[j].Replace("\r", "");
loaded++;
}
}
var breakout = false;
// Use parallel processing to iterate over all entries in the dictionary buffer
Parallel.ForEach <string> (dict, (dict_entry, loopstate_inner) => {
// Get the current hash
var hash = hashes[i];
// Create a variable for storing the output (if valid)
string output;
// Get the current dictionary entry
// (for the Update_Screen task)
dict_current = dict_entry;
// Try to collide the hashes
var success = method.CheckHash(hash, dict_entry, out output);
// Increment the statistically relevant variables
++processed;
++avg_tmp;
// Check if the collision succeeded
if (success)
{
// Increment the amount of successfully collided hashes
// (for the Update_Screen task)
++cracked;
// Add the collision to the database
MainClass.db.Add(MainClass.session, hash, output, method);
#if LIBNOTIFYNET
var _libnotifynet_format = string.Format("Successfully cracked {0} hash:\n{1}\nValue was: {2}", method.Name, hash, output);
Notification.Send("Hashlecter", _libnotifynet_format, 7500, 250, 100);
#endif
if (!MainClass.options.exp_single_cont)
{
// Break out of the loop
breakout = true;
loopstate_inner.Stop();
}
}
});
if (breakout)
{
break;
}
}
// Reset the dictionary position to 0
// for processing the next hash
reader.BaseStream.Position = 0;
// Reset the
loaded = 0;
}
// We're done!
// Tell all tasks to stop
done = true;
watch.Stop();
}
// Display the correct stats after exiting
if (!MainClass.options.silent)
{
Update_Screen(watch, force: true);
}
}
//
// This is an experimental method.
// Enable using the --exp-lazy-eval switch
//
public static void RunLazy(string[] hashes, HashingMethod method, string dictionary_path)
{
// Dictionary buffer
IEnumerable <string> dict;
// Stopwatch for measuring time
var watch = Stopwatch.StartNew();
if (!MainClass.options.silent)
{
// Update_Screen task
var update = Task.Factory.StartNew(() => Update_Screen(watch));
// Update_Stats task
var update_avg = Task.Factory.StartNew(Update_Stats);
}
// Lazy approach
var dictionary = File.ReadLines(dictionary_path);
var dictionary_pos = 0;
var dictionary_count = dictionary.Count();
// Iterate over all hashes in the array
for (var i = 0; i < hashes.Length; i++)
{
// Skip comments
if (hashes[i].StartsWith("#"))
{
continue;
}
current_hash = hashes[i];
//while (dictionary_pos <= dictionary_count) {
while (dictionary_pos < dictionary_count)
{
dict = dictionary.Skip(dictionary_pos).Take(BUFFER_SZ);
dictionary_pos += BUFFER_SZ;
loaded = dictionary_pos;
var breakout = false;
// Use parallel processing to iterate over all entries in the dictionary buffer
Parallel.ForEach <string> (dict, (dict_entry, loopstate_inner) => {
// Get the current hash
var hash = hashes[i];
// Create a variable for storing the output (if valid)
string output;
// Get the current dictionary entry
// (for the Update_Screen task)
dict_current = dict_entry;
// Try to collide the hashes
var success = method.CheckHash(hash, dict_entry, out output);
// Increment the statistically relevant variables
++processed;
++avg_tmp;
// Check if the collision succeeded
if (success)
{
// Increment the amount of successfully collided hashes
// (for the Update_Screen task)
++cracked;
// Add the collision to the database
MainClass.db.Add(MainClass.session, hash, output, method);
// Break out of the loop
breakout = true;
loopstate_inner.Stop();
}
});
if (breakout)
{
break;
}
}
dictionary_pos = 0;
}
done = true;
watch.Stop();
// Display the correct stats after exiting
if (!MainClass.options.silent)
{
Update_Screen(watch, force: true);
}
}
/// <summary>
/// The entry point of the program, where the program control starts and ends.
/// </summary>
/// <param name="args">The command-line arguments.</param>
public static void Main(string[] args)
{
foreach (var x in args)
{
Console.WriteLine(x);
}
// Create a hashset for storing the hashing methods
methods = new HashSet <HashingMethod> {
#if MD5
HashingMethod.New <hMD5> (),
HashingMethod.New <hMD5_Double> (),
HashingMethod.New <hMD5_Salted> (),
HashingMethod.New <hMD5_Salted2> (),
HashingMethod.New <hMD5_MyBB> (),
#endif
#if SHA1
HashingMethod.New <hSHA1> (),
HashingMethod.New <hSHA1_Double> (),
#endif
#if SHA256
HashingMethod.New <hSHA256> (),
HashingMethod.New <hSHA256_Double> (),
#endif
#if SHA384
HashingMethod.New <hSHA384> (),
#endif
#if SHA512
HashingMethod.New <hSHA512> (),
#endif
#if RIPEMD160
HashingMethod.New <hRIPEMD160> (),
#endif
#if WHIRLPOOL
HashingMethod.New <hWhirlpool> (),
#endif
#if JHASH
HashingMethod.New <hJHash> (),
#endif
};
// Parse command-line arguments using libArgument
options = ArgumentParser.Parse <Options> (args);
// Use wizard if lecter was started directly
options.wizard |= args.Length == 0;
// Get or create a session identifier
session = string.IsNullOrEmpty(options.session) ? GenerateSession() : options.session;
// Connect to the SQLite database
db = Database.Factory.CreateSQLite(SQLITE_DB);
// Return if the user just wanted to make
// sure that the db got created
if (options.create_db)
{
Environment.Exit(0);
}
// Display help
else if (options.help)
{
PreHelp();
ArgumentParser.Help();
Help();
Environment.Exit(0);
}
// Show all the cracked hashes
else if (options.show)
{
db.Show(string.IsNullOrEmpty(options.session) ? string.Empty : session);
Environment.Exit(0);
}
// Call the magician
else if (options.wizard)
{
Wizard();
}
// Null-check the method
if (string.IsNullOrEmpty(options.method))
{
// Fall back to MD5
options.method = "md5";
}
// Get the method used for cracking the hashes
var method = methods.FirstOrDefault(m => m.Name == options.method.ToLowerInvariant());
// Check if the cracking method is valid
if (method == null || method == default(HashingMethod))
{
Console.Error.WriteLine("Please specify a valid hashing method.");
Console.Error.WriteLine("Run lecter --help to get a list of valid hashing methods.");
Environment.Exit(0);
}
// Check if we need to generate a hash
if (options.gen)
{
// Read input string from -i/--input argument
if (!string.IsNullOrEmpty(options.input_file))
{
Console.WriteLine(method.Hash(options.input_file));
}
// Hash an empty string if no string is given
else
{
Console.WriteLine(method.Hash(string.Empty));
}
// Exit
Environment.Exit(0);
}
string[] input_hashes = null;
// Grab input from stdin
if (options.input_stdin)
{
input_hashes = FromStdin();
}
// Grab input from file
else if (!string.IsNullOrEmpty(options.input_file))
{
input_hashes = FromFile(options.input_file);
}
// Perform dictionary attack
if (!string.IsNullOrEmpty(options.input_dict))
{
// Null-check the input file
if (input_hashes == null)
{
Console.Error.WriteLine("No input was specified.");
Environment.Exit(0);
}
// Experimental lazy evaluation
if (options.exp_lazy_eval)
{
DictionaryAttack.RunLazy(input_hashes, method, options.input_dict);
}
// Stable evaluation
else
{
DictionaryAttack.Run(input_hashes, method, options.input_dict);
}
}
// Perform bruteforce attack
else
{
// Null-check the input file
if (input_hashes == null)
{
Console.Error.WriteLine("No input was specified.");
Environment.Exit(0);
}
string default_alphabet =
BruteforceAttack.NUMERIC +
BruteforceAttack.LOWER_ALPHANUMERIC;
if (options.len == 0)
{
options.len = 6;
}
if (!string.IsNullOrEmpty(options.alphabet))
{
// Build alphabet
var alphabet = options.alphabet
.Replace("$$", "\0")
.Replace("$n", BruteforceAttack.NUMERIC)
.Replace("$l", BruteforceAttack.LOWER_ALPHANUMERIC)
.Replace("$u", BruteforceAttack.UPPER_ALPHANUMERIC)
.Replace("$s+", BruteforceAttack.SPECIAL_ADVANCED)
.Replace("$s", BruteforceAttack.SPECIAL_BASIC)
.Replace("\0", "$")
.ToList();
options.alphabet = new string (alphabet.ToArray());
}
else
{
options.alphabet = default_alphabet;
}
BruteforceAttack.Run(input_hashes, method, options.alphabet, options.len);
}
if (!options.silent)
{
db.Show(session);
if (options.wizard)
{
Console.Read();
}
}
#if LIBNOTIFYNET
Task.Factory.StartNew(() => {
NotificationManager.Instance.ShutdownWait();
}).Wait(7500);
#endif
}
public static void Run(string[] hashes, HashingMethod method, string dictionary_path)
{
#if LIBNOTIFYNET
Notification.Send ("Hashlecter", "Started dictionary attack.", 5000);
#endif
// Dictionary buffer
string[] dict = new string[BUFFER_SZ];
// Stopwatch for measuring time
var watch = Stopwatch.StartNew ();
if (!MainClass.options.silent) {
// Update_Screen task
var update = Task.Factory.StartNew (() => Update_Screen (watch));
// Update_Stats task
var update_avg = Task.Factory.StartNew (Update_Stats);
}
// Open dictionary file for reading
using (var fdict = File.OpenRead (dictionary_path))
using (var reader = new StreamReader (fdict)) {
// Iterate over all hashes in the array
for (var i = 0; i < hashes.Length; i++) {
// Skip comments
if (hashes[i].StartsWith ("#"))
continue;
current_hash = hashes[i];
// Check if there is still something in the dictionary to read
while (reader.BaseStream.Position < reader.BaseStream.Length) {
// Iterate over all values in [0..BUFFER_SZ]
for (var j = 0; j < BUFFER_SZ; j++) {
// Add the next line from the dictionary to the buffer
dict[j] = reader.ReadLine ();
// Increment the loaded variable if the line is valid
if (dict[j] != null) {
dict[j] = dict[j].Replace ("\r", "");
loaded++;
}
}
var breakout = false;
// Use parallel processing to iterate over all entries in the dictionary buffer
Parallel.ForEach<string> (dict, (dict_entry, loopstate_inner) => {
// Get the current hash
var hash = hashes[i];
// Create a variable for storing the output (if valid)
string output;
// Get the current dictionary entry
// (for the Update_Screen task)
dict_current = dict_entry;
// Try to collide the hashes
var success = method.CheckHash (hash, dict_entry, out output);
// Increment the statistically relevant variables
++processed;
++avg_tmp;
// Check if the collision succeeded
if (success) {
// Increment the amount of successfully collided hashes
// (for the Update_Screen task)
++cracked;
// Add the collision to the database
MainClass.db.Add (MainClass.session, hash, output, method);
#if LIBNOTIFYNET
var _libnotifynet_format = string.Format ("Successfully cracked {0} hash:\n{1}\nValue was: {2}", method.Name, hash, output);
Notification.Send ("Hashlecter", _libnotifynet_format, 7500, 250, 100);
#endif
if (!MainClass.options.exp_single_cont) {
// Break out of the loop
breakout = true;
loopstate_inner.Stop ();
}
}
});
if (breakout)
break;
}
// Reset the dictionary position to 0
// for processing the next hash
reader.BaseStream.Position = 0;
// Reset the
loaded = 0;
}
// We're done!
// Tell all tasks to stop
done = true;
watch.Stop ();
}
// Display the correct stats after exiting
if (!MainClass.options.silent) {
Update_Screen (watch, force: true);
}
}
//
// This is an experimental method.
// Enable using the --exp-lazy-eval switch
//
public static void RunLazy(string[] hashes, HashingMethod method, string dictionary_path)
{
// Dictionary buffer
IEnumerable<string> dict;
// Stopwatch for measuring time
var watch = Stopwatch.StartNew ();
if (!MainClass.options.silent) {
// Update_Screen task
var update = Task.Factory.StartNew (() => Update_Screen (watch));
// Update_Stats task
var update_avg = Task.Factory.StartNew (Update_Stats);
}
// Lazy approach
var dictionary = File.ReadLines (dictionary_path);
var dictionary_pos = 0;
var dictionary_count = dictionary.Count ();
// Iterate over all hashes in the array
for (var i = 0; i < hashes.Length; i++) {
// Skip comments
if (hashes[i].StartsWith ("#"))
continue;
current_hash = hashes[i];
//while (dictionary_pos <= dictionary_count) {
while (dictionary_pos < dictionary_count) {
dict = dictionary.Skip (dictionary_pos).Take (BUFFER_SZ);
dictionary_pos += BUFFER_SZ;
loaded = dictionary_pos;
var breakout = false;
// Use parallel processing to iterate over all entries in the dictionary buffer
Parallel.ForEach<string> (dict, (dict_entry, loopstate_inner) => {
// Get the current hash
var hash = hashes[i];
// Create a variable for storing the output (if valid)
string output;
// Get the current dictionary entry
// (for the Update_Screen task)
dict_current = dict_entry;
// Try to collide the hashes
var success = method.CheckHash (hash, dict_entry, out output);
// Increment the statistically relevant variables
++processed;
++avg_tmp;
// Check if the collision succeeded
if (success) {
// Increment the amount of successfully collided hashes
// (for the Update_Screen task)
++cracked;
// Add the collision to the database
MainClass.db.Add (MainClass.session, hash, output, method);
// Break out of the loop
breakout = true;
loopstate_inner.Stop ();
}
});
if (breakout)
break;
}
dictionary_pos = 0;
}
done = true;
watch.Stop ();
// Display the correct stats after exiting
if (!MainClass.options.silent) {
Update_Screen (watch, force: true);
}
}
public static void Run(string[] hashes, HashingMethod method, string alphabet, int length = 6)
{
#if LIBNOTIFYNET
Notification.Send("Hashlecter", "Started bruteforce attack.", 5000);
#endif
// Stopwatch for measuring time
var watch = Stopwatch.StartNew();
if (!MainClass.options.silent)
{
// Update_Screen task
var update = Task.Factory.StartNew(() => Update_Screen(watch));
// Update_Stats task
var update_avg = Task.Factory.StartNew(Update_Stats);
}
string output;
var alphabet_first = alphabet.First();
var alphabet_last = alphabet.Last();
for (var ihash = 0; ihash < hashes.Length; ihash++)
{
// Skip comments
if (hashes [ihash].StartsWith("#"))
{
continue;
}
current_hash = hashes [ihash];
// Incremental bruteforce
if (MainClass.options.incremental)
{
// Calculate maximum
for (var i = 1; i <= length; i++)
{
bruteforce_max += Math.Pow(i, alphabet.Length);
}
for (var curlen = 1; curlen <= length; ++curlen)
{
// Initialize buffer
var accum = new StringBuilder(new String(alphabet_first, curlen));
while (true)
{
++generated;
++avg_tmp;
var value = accum.ToString();
current_str = value;
var success = method.CheckHash(current_hash, value, out output);
if (success)
{
++cracked;
MainClass.db.Add(MainClass.session, current_hash, value, method);
#if LIBNOTIFYNET
var _libnotifynet_format = string.Format("Successfully cracked {0} hash:\n{1}\nValue was: {2}", method.Name, current_hash, output);
Notification.Send("Hashlecter", _libnotifynet_format, 7500, 250, 100);
#endif
done = true;
goto end;
}
if (value.All(val => val == alphabet_last))
{
break;
}
// TODO: Parallelize this
for (var i = curlen - 1; i >= 0; --i)
{
if (accum [i] != alphabet_last)
{
accum [i] = alphabet [alphabet.IndexOf(accum [i]) + 1];
break;
}
else
{
accum [i] = alphabet_first;
}
}
}
}
}
// Fixed-length bruteforce
else
{
// Calculated maximum
bruteforce_max = Math.Pow(length, alphabet.Length);
// Initialize buffer
var accum = new StringBuilder(new String(alphabet_first, length));
while (true)
{
++generated;
++avg_tmp;
var value = accum.ToString();
current_str = value;
var success = method.CheckHash(current_hash, value, out output);
if (success)
{
++cracked;
MainClass.db.Add(MainClass.session, current_hash, value, method);
#if LIBNOTIFYNET
var _libnotifynet_format = string.Format("Successfully cracked {0} hash:\n{1}\nValue was: {2}", method.Name, current_hash, output);
Notification.Send("Hashlecter", _libnotifynet_format, 7500, 250, 100);
#endif
done = true;
goto end;
}
if (value.All(val => val == alphabet_last))
{
break;
}
// TODO: Parallelize this
for (var i = length - 1; i >= 0; --i)
{
if (accum [i] != alphabet_last)
{
accum [i] = alphabet [alphabet.IndexOf(accum [i]) + 1];
break;
}
else
{
accum [i] = alphabet_first;
}
}
}
}
end : {}
}
watch.Stop();
// Display the correct stats after exiting
if (!MainClass.options.silent)
{
Update_Screen(watch, force: true);
}
}
