public static bool LoadSignKey(string desiredKeyName, byte[] keyData, out bool isNewKey, out string keyName)
{
isNewKey = false;
byte[] sha256Hash = HashUtils.ComputeSha256(keyData);
bool hashMatches = KnowsSignKeySHA256(sha256Hash, out keyName);
if (hashMatches && SignkeyStorage[keyName].HasKeyData)
{
// Duplicate key, already loaded
Console.WriteLine($"SignKey {keyName} is already loaded");
return(false);
}
if (hashMatches)
{
SignkeyStorage[keyName].SetKey(keyData);
return(true);
}
// New key, using user-set keyname
isNewKey = true;
SignkeyStorage[desiredKeyName] = new DurangoKeyEntry(KeyType.Odk, keyData);
return(true);
}
public static int LoadCikKeys(byte[] keyData, out Guid[] loadedKeys)
{
int foundCount = 0;
if (keyData.Length < 0x30 || keyData.Length % 0x30 != 0)
{
throw new Exception("Misaligned CIK, expecting array of 0x30 bytes: 0x10 bytes: GUID, 0x20 bytes: Key");
}
int cikKeyCount = keyData.Length / 0x30;
loadedKeys = new Guid[cikKeyCount];
using (BinaryReader br = new BinaryReader(new MemoryStream(keyData)))
{
for (int keyIndex = 0; keyIndex < cikKeyCount; keyIndex++)
{
var guid = new Guid(br.ReadBytes(0x10));
var cikKeyData = br.ReadBytes(0x20);
var sha256Hash = HashUtils.ComputeSha256(cikKeyData);
bool hashMatches = KnowsCikSHA256(sha256Hash, out Guid verifyGuid);
var hashString = sha256Hash.ToHexString("");
if (hashMatches && verifyGuid != guid)
{
Console.WriteLine($"CIK {guid} with hash {hashString} is known as {verifyGuid}");
continue;
}
if (hashMatches && CikStorage[guid].HasKeyData)
{
// Duplicate key, already loaded
Console.WriteLine($"CIK {guid} is already loaded");
continue;
}
CikStorage[guid] = new DurangoKeyEntry(KeyType.Cik, cikKeyData);
foundCount++;
}
}
return(foundCount);
}
public static bool LoadOdkKey(OdkIndex keyId, byte[] keyData, out bool isNewKey)
{
isNewKey = false;
byte[] sha256Hash = HashUtils.ComputeSha256(keyData);
DurangoKeyEntry existingKey = GetOdkById(keyId);
if (existingKey != null)
{
bool hashMatches = KnowsOdkSHA256(sha256Hash, out OdkIndex verifyKeyId);
if (hashMatches && verifyKeyId != keyId)
{
var hashString = sha256Hash.ToHexString("");
Console.WriteLine($"ODK {keyId} with hash {hashString} is known as ODK {verifyKeyId}");
return(false);
}
if (hashMatches && OdkStorage[keyId].HasKeyData)
{
// Duplicate key, already loaded
Console.WriteLine($"ODK {keyId} is already loaded");
return(false);
}
if (!hashMatches)
{
Console.WriteLine($"ODK {keyId} does not match expected hash");
return(false);
}
OdkStorage[keyId].SetKey(keyData);
return(true);
}
isNewKey = true;
OdkStorage[keyId] = new DurangoKeyEntry(KeyType.Odk, keyData);
return(true);
}
