Examples of com.securityinnovation.jNeo.ntruencrypt.KeyParams

Package com.securityinnovation.jNeo.ntruencrypt

Examples of com.securityinnovation.jNeo.ntruencrypt.KeyParams

com.securityinnovation.jNeo.ntruencrypt.KeyParams

A class to collect information on an encryption parameter set. An instance of this class holds the data for a single parameter set in its public members.
The static function getKeyParams() can be used to retrieve the KeyParams object associated with a particular parameter set (using the OID as an identifier). The returned object is static and should be treated as read-only.

        
        // Do the setup inside a try statement so we don't accidentally
        // trigger a false positive.
        try {
            int t = 0;
            KeyParams keyParams = KeyParams.getKeyParams(tests[t].oid);


            // Build a blob and make a short copy of it
            byte blob[] = buildPrivBlob(
                keyParams, tests[0].packedH, tests[0].packedListedF);
            blob2 = new byte[blob.length-2];

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        // Do the setup inside a try statement so we don't accidentally
        // trigger a false positive.
        try {
            int t = 0;
            KeyParams keyParams = KeyParams.getKeyParams(tests[t].oid);


            // Build a blob and make a long copy of it
            byte blob[] = buildPrivBlob(
                keyParams, tests[0].packedH, tests[0].packedListedF);
            blob2 = new byte[blob.length+2];

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        throws ParamSetNotSupportedException
    {
        // Parse the header, recover the key parameters.
        if (keyBlob[0] != tag)
          throw new IllegalArgumentException("key blob tag not recognized");
        KeyParams keyParams = KeyFormatterUtil.parseOID(keyBlob, 1, 3);


        // Make sure the input will be fully consumed
        int headerLen = KeyFormatterUtil.getHeaderEndOffset(keyBlob);
        int packedHLen = BitPack.unpack(keyParams.N, keyParams.q);
        if (headerLen + packedHLen != keyBlob.length)

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        throws ParamSetNotSupportedException
    {
        NtruEncryptTestVector tests[] = NtruEncryptTestVector.getTestVectors();
        for (int t=0; t<tests.length; t++)
        {
            KeyParams keyParams = KeyParams.getKeyParams(tests[t].oid);
            FullPolynomial expected = new FullPolynomial(tests[t].r);
            IGF2 igf = new IGF2(
                keyParams.N, keyParams.c, keyParams.igfHash, 1,
                tests[t].sData, 0, tests[t].sData.length);
            FullPolynomial out = BPGM3.genTrinomial(

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    {
        byte inData[] = new byte[10];
        java.util.Arrays.fill(inData, (byte)0);
        byte oidBytes[] = OIDMap.getOIDBytes(oid);
        System.arraycopy(oidBytes, 0, inData, 2, oidBytes.length);
        KeyParams p = KeyFormatterUtil.parseOID(inData, 2, oidBytes.length);
        return (p == KeyParams.getKeyParams(oid));
    }

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    @Test public void test_recoverF()
        throws NtruException
    {
        for (int t=0; t<tests.length; t++)
        {
            KeyParams keyParams = KeyParams.getKeyParams(tests[t].oid);
            FullPolynomial f = new FullPolynomial(tests[t].f);
            // get f into the expected form:
            // The test vectors have coefficients of f in [0..q-1]
            // recoverF expects them in the range [-q/2..q/2)
            for (int i=0; i<f.p.length; i++)

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    @Test public void test_encodePrivKey()
        throws NtruException
    {
        for (int t=0; t<tests.length; t++)
        {
            KeyParams keyParams = KeyParams.getKeyParams(tests[t].oid);
            FullPolynomial h = new FullPolynomial(tests[t].h);
            FullPolynomial f = recoverf(tests[t].f, keyParams.q);


            // Build the test blob
            PrivKeyFormatter encoder = new PrivKeyFormatter_PrivateKeyPackedFv1();

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    public void test_decodePubKey()
        throws NtruException
    {
        for (int t=0; t<tests.length; t++)
        {
            KeyParams keyParams = KeyParams.getKeyParams(tests[t].oid);


            // Build a blob
            byte blob[] = buildPrivBlob(
                keyParams, tests[t].packedH, tests[t].packedF);

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        throws ParamSetNotSupportedException
    {
        NtruEncryptTestVector tests[] = NtruEncryptTestVector.getTestVectors();
        for (int t=0; t<tests.length; t++)
        {
            KeyParams keyParams = KeyParams.getKeyParams(tests[t].oid);
            FullPolynomial r = new FullPolynomial(tests[t].r);
            FullPolynomial h = new FullPolynomial(tests[t].h);
            FullPolynomial R = new FullPolynomial(tests[t].R);


            FullPolynomial out = FullPolynomial.convolution(r, h, keyParams.q);

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    {
        byte             blob[] = null;
        PrivKeyFormatter encoder = null;
        try {
            int t = 0;
            KeyParams keyParams = KeyParams.getKeyParams(tests[t].oid);


            // Build a blob
            blob = buildPrivBlob(
                keyParams, tests[t].packedH, tests[t].packedF);
            // Change the oid

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Related Classes of com.securityinnovation.jNeo.ntruencrypt.KeyParams

com.securityinnovation.jNeo.math.BPGM3TestCase

com.securityinnovation.jNeo.math.FullPolynomialTestCase

com.securityinnovation.jNeo.ntruencrypt.encoder.KeyFormatterUtilTestCase

com.securityinnovation.jNeo.ntruencrypt.encoder.PrivKeyFormatter_PrivateKeyListedFv1

com.securityinnovation.jNeo.ntruencrypt.encoder.PrivKeyFormatter_PrivateKeyListedFv1TestCase

com.securityinnovation.jNeo.ntruencrypt.encoder.PrivKeyFormatter_PrivateKeyPackedFv1

com.securityinnovation.jNeo.ntruencrypt.encoder.PrivKeyFormatter_PrivateKeyPackedFv1TestCase

com.securityinnovation.jNeo.ntruencrypt.encoder.PubKeyFormatter_PUBLIC_KEY_v1

com.securityinnovation.jNeo.ntruencrypt.encoder.PubKeyFormatter_PUBLIC_KEY_v1TestCase

com.securityinnovation.jNeo.ParamSetNotSupportedException

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