Examples of DSAPublicKeySpec

Examples of java.security.spec.DSAPublicKeySpec

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                BigInteger p = getMPInt();
                BigInteger q = getMPInt();
                BigInteger g = getMPInt();
                BigInteger y = getMPInt();
                KeyFactory keyFactory = SecurityUtils.getKeyFactory("DSA");
                key = keyFactory.generatePublic(new DSAPublicKeySpec(y, p, q, g));
            } else {
                throw new IllegalStateException("Unsupported algorithm: " + keyAlg);
            }
            return key;
        } catch (InvalidKeySpecException e) {
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Examples of java.security.spec.DSAPublicKeySpec

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                BigInteger q = getMPInt();
                BigInteger g = getMPInt();
                BigInteger y = getMPInt();
                BigInteger x = getMPInt();
                KeyFactory keyFactory = SecurityUtils.getKeyFactory("DSA");
                pub = keyFactory.generatePublic(new DSAPublicKeySpec(y, p, q, g));
                prv = keyFactory.generatePrivate(new DSAPrivateKeySpec(x, p, q, g));
            } else {
                throw new IllegalStateException("Unsupported algorithm: " + keyAlg);
            }
            return new KeyPair(pub, prv);
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Examples of java.security.spec.DSAPublicKeySpec

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                BigInteger p = getMPInt();
                BigInteger q = getMPInt();
                BigInteger g = getMPInt();
                BigInteger y = getMPInt();
                KeyFactory keyFactory = SecurityUtils.getKeyFactory("DSA");
                key = keyFactory.generatePublic(new DSAPublicKeySpec(y, p, q, g));
            } else if (KeyPairProvider.ECDSA_SHA2_NISTP256.equals(keyAlg)) {
                key = getRawECKey("nistp256", ECCurves.EllipticCurves.nistp256);
            } else if (KeyPairProvider.ECDSA_SHA2_NISTP384.equals(keyAlg)) {
                key = getRawECKey("nistp384", ECCurves.EllipticCurves.nistp384);
            } else if (KeyPairProvider.ECDSA_SHA2_NISTP521.equals(keyAlg)) {
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Examples of java.security.spec.DSAPublicKeySpec

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                BigInteger q = getMPInt();
                BigInteger g = getMPInt();
                BigInteger y = getMPInt();
                BigInteger x = getMPInt();
                KeyFactory keyFactory = SecurityUtils.getKeyFactory("DSA");
                pub = keyFactory.generatePublic(new DSAPublicKeySpec(y, p, q, g));
                prv = keyFactory.generatePrivate(new DSAPrivateKeySpec(x, p, q, g));
            } else if (KeyPairProvider.ECDSA_SHA2_NISTP256.equals(keyAlg)) {
                return extractEC("nistp256", ECCurves.EllipticCurves.nistp256);
            } else if (KeyPairProvider.ECDSA_SHA2_NISTP384.equals(keyAlg)) {
                return extractEC("nistp384", ECCurves.EllipticCurves.nistp384);
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Examples of java.security.spec.DSAPublicKeySpec

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            if (prevDSAPubKey.getParams() == null)
            {
                continue;
            }
            DSAParams dsaParams = prevDSAPubKey.getParams();
            DSAPublicKeySpec dsaPubKeySpec = new DSAPublicKeySpec(
                dsaPubKey.getY(), dsaParams.getP(), dsaParams.getQ(), dsaParams.getG());
            try
            {
                KeyFactory keyFactory = KeyFactory.getInstance("DSA", "BC");
                return keyFactory.generatePublic(dsaPubKeySpec);
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Examples of java.security.spec.DSAPublicKeySpec

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                BigInteger p = getMPInt();
                BigInteger q = getMPInt();
                BigInteger g = getMPInt();
                BigInteger y = getMPInt();
                KeyFactory keyFactory = SecurityUtils.getKeyFactory("DSA");
                key = keyFactory.generatePublic(new DSAPublicKeySpec(y, p, q, g));
            } else if (KeyPairProvider.ECDSA_SHA2_NISTP256.equals(keyAlg)) {
                key = getRawECKey("nistp256", ECCurves.EllipticCurves.nistp256);
            } else if (KeyPairProvider.ECDSA_SHA2_NISTP384.equals(keyAlg)) {
                key = getRawECKey("nistp384", ECCurves.EllipticCurves.nistp384);
            } else if (KeyPairProvider.ECDSA_SHA2_NISTP521.equals(keyAlg)) {
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Examples of java.security.spec.DSAPublicKeySpec

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                BigInteger q = getMPInt();
                BigInteger g = getMPInt();
                BigInteger y = getMPInt();
                BigInteger x = getMPInt();
                KeyFactory keyFactory = SecurityUtils.getKeyFactory("DSA");
                pub = keyFactory.generatePublic(new DSAPublicKeySpec(y, p, q, g));
                prv = keyFactory.generatePrivate(new DSAPrivateKeySpec(x, p, q, g));
            } else if (KeyPairProvider.ECDSA_SHA2_NISTP256.equals(keyAlg)) {
                return extractEC("nistp256", ECCurves.EllipticCurves.nistp256);
            } else if (KeyPairProvider.ECDSA_SHA2_NISTP384.equals(keyAlg)) {
                return extractEC("nistp384", ECCurves.EllipticCurves.nistp384);
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Examples of java.security.spec.DSAPublicKeySpec

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    }
   
    private static PublicKey getPublicKey()
            throws InvalidKeySpecException, NoSuchAlgorithmException {
        KeyFactory kf = KeyFactory.getInstance("DSA");
        KeySpec kspec = new DSAPublicKeySpec(new BigInteger(DSA_Y),
                        new BigInteger(DSA_P),
                        new BigInteger(DSA_Q),
                        new BigInteger(DSA_G));
        return kf.generatePublic(kspec);
    }
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Examples of java.security.spec.DSAPublicKeySpec

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     *             contain valid information
     */
    public static PublicKey getDSAKey(DSAKeyValue keyDescriptor, DSAParams dsaParams) throws KeyException {
        BigInteger yComponent = keyDescriptor.getY().getValueBigInt();

        DSAPublicKeySpec keySpec =
            new DSAPublicKeySpec(yComponent, dsaParams.getP(), dsaParams.getQ(), dsaParams.getG());
        return buildKey(keySpec, "DSA");
    }
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Examples of java.security.spec.DSAPublicKeySpec

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        KeyFactory factory;
        if (key instanceof DSAPrivateKey) {
            DSAPrivateKey dsaKey = (DSAPrivateKey) key;
            DSAParams keyParams = dsaKey.getParams();
            BigInteger y = keyParams.getQ().modPow(dsaKey.getX(), keyParams.getP());
            DSAPublicKeySpec pubKeySpec = new DSAPublicKeySpec(y, keyParams.getP(), keyParams.getQ(), keyParams.getG());

            try {
                factory = KeyFactory.getInstance("DSA");
                return factory.generatePublic(pubKeySpec);
            } catch (GeneralSecurityException e) {
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