private void UpdateGrid(string filter = "")
{
DataTable dt = new DataTable();
dt.Columns.Add("Index");
dt.Columns.Add("Name");
dt.Columns.Add("Origin");
dt.Columns.Add("Level");
dt.Columns.Add("Seed Size");
dt.Columns.Add("Key Size");
dt.Columns.Add("Security Provider");
List <SecurityProvider> providers = SecurityProvider.GetSecurityProviders();
for (int i = 0; i < Definitions.Count; i++)
{
Definition definition = Definitions[i];
if (providers.Find(x => x.GetProviderName() == definition.Provider) is null)
{
continue;
}
if (!definition.Origin.ToLower().Contains(filter.ToLower()))
{
continue;
}
dt.Rows.Add(new string[] {
i.ToString(),
definition.EcuName,
definition.Origin,
definition.AccessLevel.ToString(),
definition.SeedLength.ToString(),
definition.KeyLength.ToString(),
definition.Provider
});
}
dgvMain.DataSource = dt;
dgvMain.Columns[0].Visible = false;
dgvMain.Columns[1].AutoSizeMode = DataGridViewAutoSizeColumnMode.AllCells;
dgvMain.Columns[2].AutoSizeMode = DataGridViewAutoSizeColumnMode.AllCells;
dgvMain.Columns[3].AutoSizeMode = DataGridViewAutoSizeColumnMode.DisplayedCells;
dgvMain.Columns[4].AutoSizeMode = DataGridViewAutoSizeColumnMode.DisplayedCells;
dgvMain.Columns[5].AutoSizeMode = DataGridViewAutoSizeColumnMode.DisplayedCells;
dgvMain.Columns[6].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
}
public void VerifyOutputWithOfficialDLLs()
{
string dbPath = $"{GetLibraryFolder()}db.json";
string definitionJson = File.ReadAllText(dbPath);
List <Definition> definitions = System.Text.Json.JsonSerializer.Deserialize <List <Definition> >(definitionJson);
List <SecurityProvider> providers = SecurityProvider.GetSecurityProviders();
QuickTest(definitions.Find(x => (x.EcuName == "CRD3S2SEC9A") && (x.AccessLevel == 9) && (x.Provider == "DaimlerStandardSecurityAlgo")), providers);
QuickTest(definitions.Find(x => (x.EcuName == "RBS222") && (x.AccessLevel == 11) && (x.Provider == "DaimlerStandardSecurityAlgoMod")), providers);
QuickTest(definitions.Find(x => (x.EcuName == "IC177") && (x.AccessLevel == 11) && (x.Provider == "DaimlerStandardSecurityAlgoRefG")), providers);
QuickTest(definitions.Find(x => (x.EcuName == "MED40") && (x.AccessLevel == 5) && (x.Provider == "PowertrainSecurityAlgo")), providers);
QuickTest(definitions.Find(x => (x.EcuName == "CR6NFZ") && (x.AccessLevel == 1) && (x.Provider == "PowertrainSecurityAlgo2")), providers);
QuickTest(definitions.Find(x => (x.EcuName == "DCDC223") && (x.AccessLevel == 17) && (x.Provider == "EsLibEd25519")), providers);
VWTest(definitions, providers);
Assert.Pass();
}
public void TryGenerateKey(byte[] inByte)
{
if (dgvMain.SelectedRows.Count != 1)
{
txtKeyValue.Text = "Please select a definition first";
return;
}
int selectedIndex = int.Parse(dgvMain.SelectedRows[0].Cells[0].Value.ToString());
Definition definition = Definitions[selectedIndex];
groupBox2.Text = $"Key Generation ({definition})";
if (definition.SeedLength != inByte.Length)
{
txtKeyValue.Text = $"Expecting a {definition.SeedLength}-byte seed. Current length is {inByte.Length}";
return;
}
SecurityProvider provider = SecurityProvider.GetSecurityProviders().Find(x => x.GetProviderName() == definition.Provider);
if (provider is null)
{
txtKeyValue.Text = $"Could not load security provider for {definition.Provider}";
return;
}
byte[] outKey = new byte[definition.KeyLength];
if (provider.GenerateKey(inByte, outKey, definition.AccessLevel, definition.Parameters))
{
txtKeyValue.Text = BitUtility.BytesToHex(outKey, true);
}
else
{
txtKeyValue.Text = $"Key generation was unsuccessful ({definition.Provider})";
return;
}
}
static void Main(string[] args)
{
bool showHelp = false;
bool showDefinitions = false;
int accessLevel = 1;
string databasePath = "db.json";
string seedText = "";
string ecuName = "";
string prefix = "";
OptionSet options = new OptionSet()
{
{
"d|database=", "Path to the JSON definition database",
(string v) => databasePath = v
},
{
"s|seed=", "Seed value as received from ECU",
(string v) => seedText = v
},
{
"n|name=", "Target ECU name",
(string v) => ecuName = v
},
{
"l|level=", "Access level",
(int v) => accessLevel = v
},
{
"h|help", "Show this message and exit",
v => showHelp = v != null
},
{
"e|list", "Show a list of ECU definitions, then exit",
v => showDefinitions = v != null
},
{
"p|prefix=", "Prefix this string on successful key generation",
(string v) => prefix = v
},
};
List <string> extraArgs;
try
{
extraArgs = options.Parse(args);
}
catch (OptionException ex)
{
Console.WriteLine($"UnlockECU exception: {ex.Message}");
Console.WriteLine("Try `consoleunlockecu --help' for more information.");
return;
}
if (showHelp)
{
ShowHelp(options);
return;
}
// check params if they are valid first
if (!File.Exists(databasePath))
{
Console.WriteLine($"Could not open definition database file. Please check if the database exists at \"{databasePath}\"");
return;
}
string definitionJson = "";
try
{
definitionJson = File.ReadAllText(databasePath);
}
catch (Exception ex)
{
Console.WriteLine($"UnlockECU exception while reading database : {ex.Message}");
return;
}
List <Definition> definitions = new List <Definition>();
try
{
definitions = System.Text.Json.JsonSerializer.Deserialize <List <Definition> >(definitionJson);
}
catch (Exception ex)
{
Console.WriteLine($"UnlockECU exception while parsing database : {ex.Message}. Please check if the JSON database file is valid.");
return;
}
if (showDefinitions)
{
Console.WriteLine($"UnlockECU: {definitions.Count} definitions available in {databasePath}");
foreach (Definition d in definitions)
{
Console.Write($"{d.EcuName} ({d.Origin}): Level {d.AccessLevel}, Seed Length: {d.SeedLength}, Key Length: {d.KeyLength}, Provider: {d.Provider}\n");
}
return;
}
if (ecuName.Length == 0)
{
Console.WriteLine($"UnlockECU: ECU name cannot be empty.");
ShowHelp(options);
return;
}
Definition matchingDefinition = Definition.FindDefinition(definitions, ecuName, accessLevel);
if (matchingDefinition is null)
{
Console.WriteLine($"UnlockECU exception: Could not find a definition that matches {ecuName} (level {accessLevel})");
return;
}
// clean up user's seed input
bool validHex = true;
string cleanedText = seedText.Replace(" ", "").Replace("\r", "").Replace("\n", "").Replace("\t", "").Replace("-", "").ToUpper();
if (cleanedText.Length % 2 != 0)
{
validHex = false;
}
if (!System.Text.RegularExpressions.Regex.IsMatch(cleanedText, @"\A\b[0-9a-fA-F]+\b\Z"))
{
validHex = false;
}
byte[] seed = new byte[] { };
if (validHex)
{
seed = BitUtility.BytesFromHex(cleanedText);
}
else if (matchingDefinition.SeedLength == 0)
{
// do nothing, array is already empty
}
else
{
Console.WriteLine($"UnlockECU exception: ECU {matchingDefinition.EcuName} requires a valid {matchingDefinition.SeedLength}-byte seed");
return;
}
// attempt to generate the key
SecurityProvider provider = SecurityProvider.GetSecurityProviders().Find(x => x.GetProviderName() == matchingDefinition.Provider);
if (provider is null)
{
Console.WriteLine($"UnlockECU exception: Could not load security provider for {matchingDefinition.EcuName} ({matchingDefinition.Provider})");
return;
}
byte[] outKey = new byte[matchingDefinition.KeyLength];
if (provider.GenerateKey(seed, outKey, matchingDefinition.AccessLevel, matchingDefinition.Parameters))
{
Console.Write($"{prefix}{BitUtility.BytesToHex(outKey)}");
return;
}
else
{
Console.WriteLine($"UnlockECU exception: Key generation was unsuccessful for {matchingDefinition.EcuName} ({matchingDefinition.Provider})");
return;
}
}