public void SaveKeyPair(KeyPair keyPair, string fileName)
{
XmlSerializer xmls = new XmlSerializer(typeof(KeyPair));
using (FileStream fs = File.Create(fileName))
{
xmls.Serialize(fs, keyPair);
}
}
public KeyPair CreateEmptyKeyPair()
{
KeyPair keyPair = new KeyPair();
keyPair.PrivateKey = new byte[PrivateKeySize];
keyPair.PublicKey = new byte[PublicKeySize];
for (int i = 0; i < PrivateKeySize; i++)
{
keyPair.PrivateKey[i] = 0xFF;
}
for (int i = 0; i < PublicKeySize; i++)
{
keyPair.PublicKey[i] = 0xFF;
}
return keyPair;
}
public KeyPair CreateKeyPair()
{
byte[] seed = new byte[RandomSeedSize + 2*sizeof(UInt16)];
byte[] keyPrivate = new byte[PrivateKeySize];
byte[] keyPublic = new byte[PublicKeySize];
ushort delta1, delta2;
Random random = new Random();
for (int i = 0; i < 100; i++)
{
random.NextBytes(seed);
//I'm not sure what this does, it was ported from MetaDataProcessor
if (CryptoWrapper.Crypto_CreateZenithKey(seed, out delta1, out delta2) != (int)dotNetMFCrypto.CryptoWrapper.CRYPTO_RESULT.SUCCESS)
continue;
byte []d0 = BitConverter.GetBytes(delta1);
byte []d1 = BitConverter.GetBytes(delta2);
seed[RandomSeedSize ] = d0[0];
seed[RandomSeedSize + 1] = d0[1];
seed[RandomSeedSize + 2] = d1[0];
seed[RandomSeedSize + 3] = d1[1];
if (CryptoWrapper.Crypto_GeneratePrivateKey(seed, keyPrivate) != (int)dotNetMFCrypto.CryptoWrapper.CRYPTO_RESULT.SUCCESS)
continue;
if (CryptoWrapper.Crypto_PublicKeyFromPrivate(keyPrivate, keyPublic) != (int)dotNetMFCrypto.CryptoWrapper.CRYPTO_RESULT.SUCCESS)
continue;
KeyPair keyPair = new KeyPair();
keyPair.PrivateKey = keyPrivate;
keyPair.PublicKey = keyPublic;
return keyPair;
}
throw new ApplicationException("Could not generate key pair");
}
public string FormatPublicKey(KeyPair keyPair)
{
string retVal;
int i = 0;
int j = 0;
retVal = "// exponent length\r\n";
foreach (byte b in keyPair.PublicKey)
{
if (i == 4) { retVal += "\r\n\r\n// module\r\n"; j = 0; }
if (j != 0 && (0 == (j % 10))) retVal += "\r\n";
if (i == 132) { retVal += "\r\n\r\n// exponent\r\n"; j = 0; }
retVal += string.Format("0x{0:x02}, ", b);
j++;
i++;
}
return retVal;
}
