public static KeyPair loadKey(String pemString, String passwd) throws IOException, GeneralSecurityException { Object key = PEMDecoder.decode(pemString.toCharArray(), passwd); if (key instanceof com.trilead.ssh2.signature.RSAPrivateKey) { com.trilead.ssh2.signature.RSAPrivateKey x = (com.trilead.ssh2.signature.RSAPrivateKey)key; return x.toJCEKeyPair(); } if (key instanceof com.trilead.ssh2.signature.DSAPrivateKey) { com.trilead.ssh2.signature.DSAPrivateKey x = (com.trilead.ssh2.signature.DSAPrivateKey)key; KeyFactory kf = KeyFactory.getInstance("DSA"); return new KeyPair( kf.generatePublic(new DSAPublicKeySpec(x.getY(), x.getP(), x.getQ(), x.getG())), kf.generatePrivate(new DSAPrivateKeySpec(x.getX(), x.getP(), x.getQ(), x.getG()))); } throw new UnsupportedOperationException("Unrecognizable key format: " + key); }
/** Creates a DSA private key. */ public static PrivateKey newDSAPrivateKey(String x, String p, String q, String g) throws GeneralSecurityException { return SecurityUtils.getKeyFactory("DSA").generatePrivate(new DSAPrivateKeySpec(new BigInteger(x, 16), new BigInteger(p, 16), new BigInteger(q, 16), new BigInteger(g, 16)) ); }
BigInteger prv = asn.readNext(); PublicKey pubKey = factory.generatePublic(new DSAPublicKeySpec(pub, p, q, g)); PrivateKey prvKey = factory.generatePrivate(new DSAPrivateKeySpec(prv, p, q, g)); return new KeyPair(pubKey, prvKey);
return new KeyPair( factory.generatePublic(new DSAPublicKeySpec(y, p, q, g)), factory.generatePrivate(new DSAPrivateKeySpec(x, p, q, g)) ); } catch (InvalidKeySpecException e) {
g = params.getG(); return (T) (new DSAPrivateKeySpec(x, p, q, g));
@Test public void testSignAndVerify() throws Exception { BigInteger x = new BigInteger(new byte[] { 58, 19, -71, -30, 89, -111, 75, 98, 110, 38, -56, -23, 68, 74, -40, 17, -30, 37, 50, 35 }); BigInteger y = new BigInteger(new byte[] { 32, -91, -39, 54, 19, 14, 26, 113, -109, -92, -45, 83, -86, 23, -103, 108, 102, 86, 110, 78, -45, -41, -37, 38, -94, -92, -124, -36, -93, 92, 127, 113, 97, -119, -10, -73, -41, -45, 98, -104, -54, -9, -92, 66, 15, 31, 68, -32, 32, -121, -51, 68, 29, 100, 59, 60, 109, 111, -81, 80, 7, 127, 116, -107, 88, -114, -114, -69, 41, -15, 59, 81, 70, 9, -113, 36, 119, 28, 16, -127, -65, 32, -19, 109, -27, 24, -48, -80, 84, 47, 119, 25, 57, -118, -66, -22, -105, -11, 112, 16, -91, -127, 62, 23, 89, -17, -43, -105, -4, -43, 60, 42, -81, -95, -27, -8, 98, -37, 120, 80, -76, 93, -24, -104, -117, 38, -56, -68 }); BigInteger p = new BigInteger(new byte[] { 0, -3, 127, 83, -127, 29, 117, 18, 41, 82, -33, 74, -100, 46, -20, -28, -25, -10, 17, -73, 82, 60, -17, 68, 0, -61, 30, 63, -128, -74, 81, 38, 105, 69, 93, 64, 34, 81, -5, 89, 61, -115, 88, -6, -65, -59, -11, -70, 48, -10, -53, -101, 85, 108, -41, -127, 59, -128, 29, 52, 111, -14, 102, 96, -73, 107, -103, 80, -91, -92, -97, -97, -24, 4, 123, 16, 34, -62, 79, -69, -87, -41, -2, -73, -58, 27, -8, 59, 87, -25, -58, -88, -90, 21, 15, 4, -5, -125, -10, -45, -59, 30, -61, 2, 53, 84, 19, 90, 22, -111, 50, -10, 117, -13, -82, 43, 97, -41, 42, -17, -14, 34, 3, 25, -99, -47, 72, 1, -57 }); BigInteger q = new BigInteger(new byte[] { 0, -105, 96, 80, -113, 21, 35, 11, -52, -78, -110, -71, -126, -94, -21, -124, 11, -16, 88, 28, -11 }); BigInteger g = new BigInteger(new byte[] { 0, -9, -31, -96, -123, -42, -101, 61, -34, -53, -68, -85, 92, 54, -72, 87, -71, 121, -108, -81, -69, -6, 58, -22, -126, -7, 87, 76, 11, 61, 7, -126, 103, 81, 89, 87, -114, -70, -44, 89, 79, -26, 113, 7, 16, -127, -128, -76, 73, 22, 113, 35, -24, 76, 40, 22, 19, -73, -49, 9, 50, -116, -56, -90, -31, 60, 22, 122, -117, 84, 124, -115, 40, -32, -93, -82, 30, 43, -77, -90, 117, -111, 110, -93, 127, 11, -6, 33, 53, 98, -15, -5, 98, 122, 1, 36, 59, -52, -92, -15, -66, -88, 81, -112, -119, -88, -125, -33, -31, 90, -27, -97, 6, -110, -117, 102, 94, -128, 123, 85, 37, 100, 1, 76, 59, -2, -49, 73, 42 }); byte[] data = "The Magic Words are Squeamish Ossifrage".getBytes(IOUtils.UTF8); // A previously signed and verified signature using the data and DSA key parameters above. byte[] dataSig = new byte[] { 0, 0, 0, 7, 115, 115, 104, 45, 100, 115, 115, 0, 0, 0, 40, 40, -71, 33, 105, -89, -107, 8, 26, -13, -90, 73, -103, 105, 112, 7, -59, -66, 46, 85, -27, 20, 82, 22, -113, -75, -86, -121, -42, -73, 78, 66, 93, -34, 39, -50, -93, 27, -5, 37, -92 }; SignatureDSA signatureForSigning = new SignatureDSA(); signatureForSigning.initSign(keyFactory.generatePrivate(new DSAPrivateKeySpec(x, p, q, g))); signatureForSigning.update(data); byte[] sigBlob = signatureForSigning.encode(signatureForSigning.sign()); byte[] sigFull = new Buffer.PlainBuffer().putString("ssh-dss").putBytes(sigBlob).getCompactData(); SignatureDSA signatureForVerifying = new SignatureDSA(); signatureForVerifying.initVerify(keyFactory.generatePublic(new DSAPublicKeySpec(y, p, q, g))); signatureForVerifying.update(data); Assert.assertTrue("Failed to verify signature: " + Arrays.toString(sigFull), signatureForVerifying.verify(sigFull)); signatureForVerifying.update(data); Assert.assertTrue("Failed to verify signature: " + Arrays.toString(dataSig), signatureForVerifying.verify(dataSig)); }
return engineGeneratePrivate(new DSAPrivateKeySpec( privateKey.getX(), params.getP(), params.getQ(), params.getG()));
public static DSAPrivateKey toJavaDSAKey(SigningPrivateKey pk) throws GeneralSecurityException { KeyFactory kf = KeyFactory.getInstance("DSA"); // x p q g KeySpec ks = new DSAPrivateKeySpec(new NativeBigInteger(1, pk.getData()), CryptoConstants.dsap, CryptoConstants.dsaq, CryptoConstants.dsag); return (DSAPrivateKey) kf.generatePrivate(ks); }
@Override public void setPrvKey(byte[] x, byte[] p, byte[] q, byte[] g) throws Exception { DSAPrivateKeySpec dsaPrivKeySpec = new DSAPrivateKeySpec(new BigInteger(x), new BigInteger(p), new BigInteger(q), new BigInteger(g)); PrivateKey prvKey = _keyFactory.generatePrivate(dsaPrivKeySpec); _signature.initSign(prvKey); }
public void setPrvKey(byte[] x, byte[] p, byte[] q, byte[] g) throws Exception{ DSAPrivateKeySpec dsaPrivKeySpec = new DSAPrivateKeySpec(new BigInteger(x), new BigInteger(p), new BigInteger(q), new BigInteger(g)); PrivateKey prvKey = keyFactory.generatePrivate(dsaPrivKeySpec); signature.initSign(prvKey); } public byte[] sign() throws Exception{
public void setPrvKey(final byte[] x, final byte[] p, final byte[] q, final byte[] g) throws Exception { final DSAPrivateKeySpec dsaPrivKeySpec = new DSAPrivateKeySpec(new BigInteger(x), new BigInteger(p), new BigInteger(q), new BigInteger(g)); final PrivateKey prvKey = keyFactory.generatePrivate(dsaPrivKeySpec); signature.initSign(prvKey); }
public void setPrvKey(byte[] x, byte[] p, byte[] q, byte[] g) throws Exception { DSAPrivateKeySpec dsaPrivKeySpec = new DSAPrivateKeySpec(new BigInteger(x), new BigInteger(p), new BigInteger(q), new BigInteger(g)); PrivateKey prvKey = keyFactory.generatePrivate(dsaPrivKeySpec); signature.initSign(prvKey); }
public void setPrvKey(byte[] x, byte[] p, byte[] q, byte[] g) throws Exception{ DSAPrivateKeySpec dsaPrivKeySpec = new DSAPrivateKeySpec(new BigInteger(x), new BigInteger(p), new BigInteger(q), new BigInteger(g)); PrivateKey prvKey = keyFactory.generatePrivate(dsaPrivKeySpec); signature.initSign(prvKey); } public byte[] sign() throws Exception{
public void setPrvKey(byte[] x, byte[] p, byte[] q, byte[] g) throws Exception{ DSAPrivateKeySpec dsaPrivKeySpec = new DSAPrivateKeySpec(new BigInteger(x), new BigInteger(p), new BigInteger(q), new BigInteger(g)); PrivateKey prvKey = keyFactory.generatePrivate(dsaPrivKeySpec); signature.initSign(prvKey); } public byte[] sign() throws Exception{
@Override public DSAPrivateKey clonePrivateKey(DSAPrivateKey key) throws GeneralSecurityException { if (key == null) { return null; } DSAParams params = key.getParams(); if (params == null) { throw new InvalidKeyException("Missing parameters in key"); } return generatePrivateKey(new DSAPrivateKeySpec(key.getX(), params.getP(), params.getQ(), params.getG())); }
@Override public DSAPrivateKey clonePrivateKey(DSAPrivateKey key) throws GeneralSecurityException { if (key == null) { return null; } DSAParams params = key.getParams(); if (params == null) { throw new InvalidKeyException("Missing parameters in key"); } return generatePrivateKey(new DSAPrivateKeySpec(key.getX(), params.getP(), params.getQ(), params.getG())); }
@Override public DSAPrivateKey clonePrivateKey(DSAPrivateKey key) throws GeneralSecurityException { if (key == null) { return null; } DSAParams params = key.getParams(); if (params == null) { throw new InvalidKeyException("Missing parameters in key"); } return generatePrivateKey(new DSAPrivateKeySpec(key.getX(), params.getP(), params.getQ(), params.getG())); }
@Override public DSAPrivateKey clonePrivateKey(DSAPrivateKey key) throws GeneralSecurityException { if (key == null) { return null; } DSAParams params = key.getParams(); if (params == null) { throw new InvalidKeyException("Missing parameters in key"); } return generatePrivateKey(new DSAPrivateKeySpec(key.getX(), params.getP(), params.getQ(), params.getG())); }
@Override public DSAPrivateKey clonePrivateKey(DSAPrivateKey key) throws GeneralSecurityException { if (key == null) { return null; } DSAParams params = key.getParams(); if (params == null) { throw new InvalidKeyException("Missing parameters in key"); } return generatePrivateKey(new DSAPrivateKeySpec(key.getX(), params.getP(), params.getQ(), params.getG())); }
@Override public DSAPrivateKey clonePrivateKey(DSAPrivateKey key) throws GeneralSecurityException { if (key == null) { return null; } DSAParams params = key.getParams(); if (params == null) { throw new InvalidKeyException("Missing parameters in key"); } return generatePrivateKey(new DSAPrivateKeySpec(key.getX(), params.getP(), params.getQ(), params.getG())); }