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

Example 61 with DSAParams

use of java.security.interfaces.DSAParams in project keystore-explorer by kaikramer.

the class MsPvkUtil method dsaPrivateKeyToBlob.

private static byte[] dsaPrivateKeyToBlob(DSAPrivateKey dsaPrivKey) throws CryptoException {
    try {
        DSAParams dsaParams = dsaPrivKey.getParams();
        // 328 sufficient for a 1024 bit DSA key
        ByteBuffer bb = ByteBuffer.wrap(new byte[512]);
        bb.order(ByteOrder.LITTLE_ENDIAN);
        // Write out the blob fields
        // dsspubkey.magic
        UnsignedUtil.putInt(bb, DSS_PRIV_MAGIC);
        BigInteger prime = dsaParams.getP();
        int bitLength = prime.toString(2).length();
        // dsspubkey.bitlen
        UnsignedUtil.putInt(bb, bitLength);
        /*
			 * Unlike RSA there are no bit length remainders (ie DSA bit length
			 * always divisible by 8 as they are multiples of 64)
			 */
        // modulus
        writeBigInteger(bb, dsaParams.getP(), (bitLength / 8));
        // prime
        writeBigInteger(bb, dsaParams.getQ(), 20);
        // generator
        writeBigInteger(bb, dsaParams.getG(), (bitLength / 8));
        // secret exponent
        writeBigInteger(bb, dsaPrivKey.getX(), 20);
        // dssseed.counter - none, fill 0xff
        UnsignedUtil.putInt(bb, 0xffffffff);
        for (// dssseed.seed - none, fill 0xff
        int i = 0; // dssseed.seed - none, fill 0xff
        i < 20; // dssseed.seed - none, fill 0xff
        i++) {
            bb.put((byte) 0xff);
        }
        return getBufferBytes(bb);
    } catch (IOException ex) {
        throw new CryptoException(res.getString("NoConvertKeyToBlob.exception.message"), ex);
    }
}

Example 62 with DSAParams

use of java.security.interfaces.DSAParams in project keystore-explorer by kaikramer.

the class Spkac method createPublicKeyAndChallenge.

private ASN1Sequence createPublicKeyAndChallenge() throws SpkacException {
    ASN1EncodableVector publicKeyAlgorithm = new ASN1EncodableVector();
    publicKeyAlgorithm.add(new ASN1ObjectIdentifier(getPublicKeyAlg().oid()));
    if (getPublicKey() instanceof RSAPublicKey) {
        publicKeyAlgorithm.add(DERNull.INSTANCE);
    } else {
        DSAParams dsaParams = ((DSAPublicKey) getPublicKey()).getParams();
        ASN1EncodableVector dssParams = new ASN1EncodableVector();
        dssParams.add(new ASN1Integer(dsaParams.getP()));
        dssParams.add(new ASN1Integer(dsaParams.getQ()));
        dssParams.add(new ASN1Integer(dsaParams.getG()));
        publicKeyAlgorithm.add(new DERSequence(dssParams));
    }
    ASN1EncodableVector spki = new ASN1EncodableVector();
    spki.add(new DERSequence(publicKeyAlgorithm));
    spki.add(encodePublicKeyAsBitString(getPublicKey()));
    ASN1EncodableVector publicKeyAndChallenge = new ASN1EncodableVector();
    publicKeyAndChallenge.add(new DERSequence(spki));
    publicKeyAndChallenge.add(new DERIA5String(getChallenge()));
    return new DERSequence(publicKeyAndChallenge);
}

Example 63 with DSAParams

use of java.security.interfaces.DSAParams in project keystore-explorer by kaikramer.

the class DProperties method createPrivateKeyNodes.

private void createPrivateKeyNodes(DefaultMutableTreeNode parentNode, PrivateKey privateKey) throws CryptoException {
    DefaultMutableTreeNode privateKeyNode = new DefaultMutableTreeNode(res.getString("DProperties.properties.PrivateKey"));
    parentNode.add(privateKeyNode);
    currentState.getKeyStore();
    KeyInfo keyInfo = KeyPairUtil.getKeyInfo(privateKey);
    String keyAlg = keyInfo.getAlgorithm();
    privateKeyNode.add(new DefaultMutableTreeNode(MessageFormat.format(res.getString("DProperties.properties.Algorithm"), keyAlg)));
    Integer keySize = keyInfo.getSize();
    if (keySize != null) {
        privateKeyNode.add(new DefaultMutableTreeNode(MessageFormat.format(res.getString("DProperties.properties.KeySize"), "" + keyInfo.getSize())));
    } else {
        privateKeyNode.add(new DefaultMutableTreeNode(MessageFormat.format(res.getString("DProperties.properties.KeySize"), "?")));
    }
    String keyFormat = privateKey.getFormat();
    privateKeyNode.add(new DefaultMutableTreeNode(MessageFormat.format(res.getString("DProperties.properties.Format"), keyFormat)));
    String keyEncoded;
    byte[] encodedKey = privateKey.getEncoded();
    if (encodedKey != null) {
        keyEncoded = "0x" + new BigInteger(1, privateKey.getEncoded()).toString(16).toUpperCase();
    } else {
        keyEncoded = "*****";
    }
    privateKeyNode.add(new DefaultMutableTreeNode(MessageFormat.format(res.getString("DProperties.properties.Encoded"), keyEncoded)));
    if (privateKey instanceof RSAPrivateCrtKey) {
        RSAPrivateCrtKey rsaPrivateKey = (RSAPrivateCrtKey) privateKey;
        String publicExponent = MessageFormat.format(res.getString("DProperties.properties.private.rsa.PublicExponent"), "0x" + rsaPrivateKey.getPublicExponent().toString(16).toUpperCase());
        privateKeyNode.add(new DefaultMutableTreeNode(publicExponent));
        String modulus = MessageFormat.format(res.getString("DProperties.properties.private.rsa.Modulus"), "0x" + rsaPrivateKey.getModulus().toString(16).toUpperCase());
        privateKeyNode.add(new DefaultMutableTreeNode(modulus));
        String primeP = MessageFormat.format(res.getString("DProperties.properties.private.rsa.PrimeP"), "0x" + rsaPrivateKey.getPrimeP().toString(16).toUpperCase());
        privateKeyNode.add(new DefaultMutableTreeNode(primeP));
        String primeQ = MessageFormat.format(res.getString("DProperties.properties.private.rsa.PrimeQ"), "0x" + rsaPrivateKey.getPrimeQ().toString(16).toUpperCase());
        privateKeyNode.add(new DefaultMutableTreeNode(primeQ));
        String primeExponentP = MessageFormat.format(res.getString("DProperties.properties.private.rsa.PrimeExponentP"), "0x" + rsaPrivateKey.getPrimeExponentP().toString(16).toUpperCase());
        privateKeyNode.add(new DefaultMutableTreeNode(primeExponentP));
        String primeExponentQ = MessageFormat.format(res.getString("DProperties.properties.private.rsa.PrimeExponentQ"), "0x" + rsaPrivateKey.getPrimeExponentQ().toString(16).toUpperCase());
        privateKeyNode.add(new DefaultMutableTreeNode(primeExponentQ));
        String crtCoefficient = MessageFormat.format(res.getString("DProperties.properties.private.rsa.CrtCoefficient"), "0x" + rsaPrivateKey.getCrtCoefficient().toString(16).toUpperCase());
        privateKeyNode.add(new DefaultMutableTreeNode(crtCoefficient));
        String privateExponent = MessageFormat.format(res.getString("DProperties.properties.private.rsa.PrivateExponent"), "0x" + rsaPrivateKey.getPrivateExponent().toString(16).toUpperCase());
        privateKeyNode.add(new DefaultMutableTreeNode(privateExponent));
    } else if (privateKey instanceof DSAPrivateKey) {
        DSAPrivateKey dsaPrivateKey = (DSAPrivateKey) privateKey;
        DSAParams dsaParams = dsaPrivateKey.getParams();
        String primeModulusP = MessageFormat.format(res.getString("DProperties.properties.private.dsa.PrimeModulusP"), "0x" + dsaParams.getP().toString(16).toUpperCase());
        privateKeyNode.add(new DefaultMutableTreeNode(primeModulusP));
        String primeQ = MessageFormat.format(res.getString("DProperties.properties.private.dsa.PrimeQ"), "0x" + dsaParams.getQ().toString(16).toUpperCase());
        privateKeyNode.add(new DefaultMutableTreeNode(primeQ));
        String generatorG = MessageFormat.format(res.getString("DProperties.properties.private.dsa.GeneratorG"), "0x" + dsaParams.getG().toString(16).toUpperCase());
        privateKeyNode.add(new DefaultMutableTreeNode(generatorG));
        String secretExponentX = MessageFormat.format(res.getString("DProperties.properties.private.dsa.SecretExponentX"), "0x" + dsaPrivateKey.getX().toString(16).toUpperCase());
        privateKeyNode.add(new DefaultMutableTreeNode(secretExponentX));
    }
}

Example 64 with DSAParams

use of java.security.interfaces.DSAParams in project j2objc by google.

the class DSAParamsTest method test_getP.

/**
 * java.security.interfaces.DSAParams
 * #getP()
 */
public void test_getP() {
    DSAParams params = new DSAParameterSpec(p, q, g);
    assertEquals("Invalid P", p, params.getP());
}

Example 65 with DSAParams

use of java.security.interfaces.DSAParams in project jruby-openssl by jruby.

the class PKey method toDerDSAKey.

public static byte[] toDerDSAKey(DSAPublicKey pubKey, DSAPrivateKey privKey) throws IOException {
    if (pubKey != null && privKey == null) {
        return pubKey.getEncoded();
    }
    if (privKey != null && pubKey != null) {
        ASN1EncodableVector vec = new ASN1EncodableVector();
        final DSAParams params = privKey.getParams();
        vec.add(new ASN1Integer(BigInteger.ZERO));
        vec.add(new ASN1Integer(params.getP()));
        vec.add(new ASN1Integer(params.getQ()));
        vec.add(new ASN1Integer(params.getG()));
        vec.add(new ASN1Integer(pubKey.getY()));
        vec.add(new ASN1Integer(privKey.getX()));
        return new DLSequence(vec).getEncoded();
    }
    if (privKey == null) {
        throw new IllegalArgumentException("private key as well as public key are null");
    }
    return privKey.getEncoded();
}