Master of Science thesis Fighting Spam

{
java.security.cert.Certificate cert2 = FileHandler.importCertificate(new
File("d:\\CA\\cacert.pem"));
KeyFactory kf = KeyFactory.getInstance("RSA");
PKCS8EncodedKeySpec pkcs = new PKCS8EncodedKeySpec(FileHandler.readBytes(new
File("d:\\CA\\cakey.key")));
System.out.println(pkcs.getFormat());
PrivateKey pk = kf.generatePrivate(pkcs);
KeyStore ks = KeyStore.getInstance("JKS");
//ks.load(new FileInputStream(new File(Config.OpenSSLpath + Config.name +
".keystore")),
// "spammail".toCharArray());
ks.load(null,"spammail".toCharArray());
ks.setKeyEntry("RS", pk, "spammail".toCharArray(), new
java.security.cert.Certificate[]
{cert2});
ks.store(new FileOutputStream(new File(Config.OpenSSLpath + Config.name +
".keystore")), "spammail".toCharArray());
FileHandler.writeObject((RSAPrivateKey) pk, new File(Config.OpenSSLpath +
"RS_private.key"));
}
private static void generateCertificate(String alias, int keySize) throws Exception
{
generateKeyPair(alias, Config.OpenSSLpath + Config.name + ".keystore", "rsa",
keySize, "spammail",
alias + "_password",
new String[]
{alias, "", "", "", "", "", ""});
PrivateKey privKey = getKey(Config.OpenSSLpath + Config.name + ".keystore",
alias, "spammail",
alias + "_password");
FileHandler.writeObject(privKey, new File(Config.OpenSSLpath + alias +
"_private.key"));
byte[] data = generateCertRequest(alias, Config.OpenSSLpath + Config.name +
".keystore", "spammail",
alias + "_password");
System.out.println(data.length);
String filesep = System.getProperty("file.separator");
FileOutputStream fos = new FileOutputStream(new File(Config.OpenSSLpath + alias +
"_certificaterequest.csr"));
fos.write(data);
fos.close();
Runtime rt = Runtime.getRuntime();
String command = "openssl ca -in " + Config.OpenSSLpath + alias +
"_certificaterequest.csr -out "
+ Config.OpenSSLpath
+ alias + "_certificate.crt -notext -batch -key spammail";
Process proc = rt.exec(command);
File generatedCert = new File(Config.OpenSSLpath + alias + "_certificate.crt");
int checks = 0;
while(!generatedCert.exists() || generatedCert.length()==0 ||
!generatedCert.canRead())
{
if(checks >= 10)
throw new Exception("Error generating certificate!");
Thread.sleep(300);
Debugger.debug(Cryptotools.class, 3, "Waiting for certificate to be
generated");
checks++;
}
395