public static void V_Test_RSA_PublicKeyFromPrivate()
{
Console.WriteLine("Testing RSA_PublicKeyFromPrivate ...");
string strPriKeyFile = null;
StringBuilder sbPrivateKey = null;
string strPublicKey = null;
int nCode = 0;
int nRet = 0;
// Read private key from encrypted private key file into internal string form
strPriKeyFile = "myuser.epk";
sbPrivateKey = Rsa.ReadEncPrivateKey(strPriKeyFile, "password");
if (sbPrivateKey.Length == 0)
{
return;
}
//Catch error here
// Display some info about it
Console.WriteLine("Private key length = {0} bits", Rsa.KeyBits(sbPrivateKey.ToString()));
nCode = Rsa.KeyHashCode(sbPrivateKey.ToString());
Console.WriteLine("KeyHashCode={0,8:X}", nCode);
nRet = Rsa.CheckKey(sbPrivateKey);
Console.WriteLine("Rsa.CheckKey returns " + nRet + ": (PKI_VALID_PRIVATEKEY=" + 0 + ")");
// Convert to public key string
strPublicKey = Rsa.PublicKeyFromPrivate(sbPrivateKey).ToString();
if (strPublicKey.Length == 0)
{
return;
}
// Catch error here
// Display some info about it
Console.WriteLine("Public key length = " + Rsa.KeyBits(strPublicKey) + " bits");
nCode = Rsa.KeyHashCode(strPublicKey);
Console.WriteLine("KeyHashCode={0,8:X}", nCode);
nRet = Rsa.CheckKey(strPublicKey);
Console.WriteLine("Rsa.CheckKey returns " + nRet + ": (PKI_VALID_PUBLICKEY=" + 1 + ")");
// Clean up
Wipe.String(sbPrivateKey);
}