Examples of com.securityinnovation.jNeo.Random

com.securityinnovation.jNeo.Random

This is the PRNG for jNeo. It is based on the X9.82 DRBG algorithm "Hash Function DRBG Using Any Approved Hash Function (Hash_DRBG)" using SHA-256 as the underlying hash.
This implementation uses the following value for t:
0xcf, 0x83, 0xe1, 0x35, 0x7e, 0xef, 0xb8, 0xbd, 0xf1, 0x54,
0x28, 0x50, 0xd6, 0x6d, 0x80, 0x07, 0xd6, 0x20, 0xe4, 0x05,
0x0b, 0x57, 0x15, 0xdc, 0x83, 0xf4, 0xa9, 0x21, 0xd3, 0x6c,
0xe9, 0xce, 0x47, 0xd0, 0xd1, 0x3c, 0x5d, 0x85, 0xf2, 0xb0,
0xff, 0x83, 0x18, 0xd2, 0x87, 0x7e, 0xec, 0x2f, 0x63, 0xb9,
0x31, 0xbd, 0x47, 0x41, 0x7a, 0x81, 0xa5, 0x38, 0x32, 0x7a,
0xf9, 0x27, 0xda, 0x3e
This implementation does not enforce the seed length requirements specified in the X9.82 documentation, but in all cases the seed must be non-null.

        throws NtruException
    {
        for (OID oid : OID.values())
        {
            NtruEncryptTestVector test  = findTest(oid);
            Random prng = new Random(test.keygenSeed);
            NtruEncryptKey keys = NtruEncryptKey.genKey(oid, prng);
            assertArrayEquals(getPrivKeyBlob(test), keys.getPrivKey());
        }
    }

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    {
        NtruEncryptTestVector test = tests[0];
        // Generate a new key. The test vector key was generated with
        // test.keygenSeed, so for this new key we will seed the PRNG
        // with test.encryptSeed, which should != keygenSeed.
        Random r = new Random(test.encryptSeed);
        NtruEncryptKey k = NtruEncryptKey.genKey(test.oid, r);
        k.decrypt(test.packedE);
    }

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                               oidBytes[1] + "." +
                               oidBytes[2]);


            byte seed[] = makeSeed(oid, "keygen");
            TVDump.dumpHex("keygenSeed", seed);
            Random r = new Random(seed);
            NtruEncryptKey key = NtruEncryptKey.genKey(oid, r);


            seed = makeSeed(oid, "encrypt");
            TVDump.dumpHex("encryptSeed", seed);
            r.seed(seed);
            byte ct[] = key.encrypt(m, r);
            key.decrypt(ct);


            System.out.println("\n\n");
        }

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    static Random createSeededRandom()
    {
        byte seed[] = new byte[32];
        java.util.Random sysRand = new java.util.Random();
        sysRand.nextBytes(seed);
        Random prng = new Random(seed);
        return prng;
    }

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        if (args[0].equals("-setup"))
        {
            // Setup PRNG
            if (args.length != 2) usage();
            Random prng = createSeededRandom();
            OID oid = parseOIDName(args[1]);
            setupNtruEncryptKey(prng, oid, pubkeyFile, privkeyFile);
        }
        else if (args[0].equals("-encrypt"))
        {
            if (args.length != 3) usage();
            // Setup PRNG
            Random prng = createSeededRandom();
            NtruEncryptKey pubKey = loadKey(pubkeyFile);
            encryptFile(pubKey, prng, args[1], args[2]);
        }
        else if (args[0].equals("-decrypt"))
        {

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Related Classes of com.securityinnovation.jNeo.Random

com.securityinnovation.jNeo.inputstream.X982Drbg

com.securityinnovation.jNeo.ntruencrypt.NtruEncryptKeyBBTestCase

com.securityinnovation.testvectors.NtruEncryptTestVectorGenerator

Sample

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