Examples of java.security.KeyFactory.generatePublic()

java.security.KeyFactory.generatePublic()
Generates a public key object from the provided key specification (key material). @param keySpec the specification (key material) of the public key. @return the public key. @exception InvalidKeySpecException if the given key specificationis inappropriate for this key factory to produce a public key.

                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) {

View Full Code Here

                BigInteger q = getMPInt();
                BigInteger p = getMPInt();
                BigInteger dP = d.remainder(p.subtract(BigInteger.valueOf(1)));
                BigInteger dQ = d.remainder(q.subtract(BigInteger.valueOf(1)));
                KeyFactory keyFactory = SecurityUtils.getKeyFactory("RSA");
                pub = keyFactory.generatePublic(new RSAPublicKeySpec(n, e));
                prv = keyFactory.generatePrivate(new RSAPrivateCrtKeySpec(n, e, d, p, q, dP, dQ, qInv));
            } else if (KeyPairProvider.SSH_DSS.equals(keyAlg)) {
                BigInteger p = getMPInt();
                BigInteger q = getMPInt();
                BigInteger g = getMPInt();

View Full Code Here

                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);

View Full Code Here


    @Override
    protected byte[] calculateK() throws Exception {
        KeyFactory myKeyFac = SecurityUtils.getKeyFactory("EC");
        ECPublicKeySpec keySpec = new ECPublicKeySpec(f, params);
        PublicKey yourPubKey = myKeyFac.generatePublic(keySpec);
        myKeyAgree.doPhase(yourPubKey, true);
        return stripLeadingZeroes(myKeyAgree.generateSecret());
    }


    public void setCurveParameters(ECParameterSpec params) {

View Full Code Here

    }


    protected byte[] calculateK() throws Exception {
        KeyFactory myKeyFac = SecurityUtils.getKeyFactory("DH");
        DHPublicKeySpec keySpec = new DHPublicKeySpec(f, p, g);
        PublicKey yourPubKey = myKeyFac.generatePublic(keySpec);
        myKeyAgree.doPhase(yourPubKey, true);
        return stripLeadingZeroes(myKeyAgree.generateSecret());
    }


    public void setP(byte[] p) {

View Full Code Here

            String keyAlg = getString();
            if (KeyPairProvider.SSH_RSA.equals(keyAlg)) {
                BigInteger e = getMPInt();
                BigInteger n = getMPInt();
                KeyFactory keyFactory = SecurityUtils.getKeyFactory("RSA");
                key = keyFactory.generatePublic(new RSAPublicKeySpec(n, e));
            } else if (KeyPairProvider.SSH_DSS.equals(keyAlg)) {
                BigInteger p = getMPInt();
                BigInteger q = getMPInt();
                BigInteger g = getMPInt();
                BigInteger y = getMPInt();

View Full Code Here

                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)) {

View Full Code Here

            throw new InvalidKeySpecException("Curve name does not match expected: " + curveName + " vs "
                    + expectedCurve);
        }
        ECPoint w = ECCurves.decodeECPoint(getStringAsBytes(), spec.getCurve());
        KeyFactory keyFactory = SecurityUtils.getKeyFactory("EC");
        return keyFactory.generatePublic(new ECPublicKeySpec(w, spec));
    }


    public KeyPair getKeyPair() throws SshException {
        try {
            PublicKey pub;

View Full Code Here

                BigInteger q = getMPInt();
                BigInteger p = getMPInt();
                BigInteger dP = d.remainder(p.subtract(BigInteger.valueOf(1)));
                BigInteger dQ = d.remainder(q.subtract(BigInteger.valueOf(1)));
                KeyFactory keyFactory = SecurityUtils.getKeyFactory("RSA");
                pub = keyFactory.generatePublic(new RSAPublicKeySpec(n, e));
                prv = keyFactory.generatePrivate(new RSAPrivateCrtKeySpec(n, e, d, p, q, dP, dQ, qInv));
            } else if (KeyPairProvider.SSH_DSS.equals(keyAlg)) {
                BigInteger p = getMPInt();
                BigInteger q = getMPInt();
                BigInteger g = getMPInt();

View Full Code Here

                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);

View Full Code Here

0 1 2 3 4 5 6 7 8 9

TOP

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.