Examples with RSAPrivateCrtKey java.security.interfaces.RSAPrivateCrtKey used on opensource projects

Example 21 with RSAPrivateCrtKey

use of java.security.interfaces.RSAPrivateCrtKey in project jdk8u_jdk by JetBrains.

the class SmallPrimeExponentP method main.

public static void main(String[] argv) throws Exception {
    String osName = System.getProperty("os.name");
    if (!osName.startsWith("Windows")) {
        System.out.println("Not windows");
        return;
    }
    KeyStore ks = KeyStore.getInstance("Windows-MY");
    ks.load(null, null);
    CertAndKeyGen ckg = new CertAndKeyGen("RSA", "SHA1withRSA");
    ckg.setRandom(new SecureRandom());
    boolean see63 = false, see65 = false;
    while (!see63 || !see65) {
        ckg.generate(1024);
        RSAPrivateCrtKey k = (RSAPrivateCrtKey) ckg.getPrivateKey();
        int len = k.getPrimeExponentP().toByteArray().length;
        if (len == 63 || len == 65) {
            if (len == 63) {
                if (see63)
                    continue;
                else
                    see63 = true;
            }
            if (len == 65) {
                if (see65)
                    continue;
                else
                    see65 = true;
            }
            System.err.print(len);
            ks.setKeyEntry("anything", k, null, new X509Certificate[] { ckg.getSelfCertificate(new X500Name("CN=Me"), 1000) });
        }
        System.err.print('.');
    }
    ks.store(null, null);
}