Examples with DSAPublicKeySpec java.security.spec.DSAPublicKeySpec used on opensource projects

Example 56 with DSAPublicKeySpec

use of java.security.spec.DSAPublicKeySpec in project jruby-openssl by jruby.

the class PKCS10Request method generatePublicKey.

public PublicKey generatePublicKey() throws NoSuchAlgorithmException, InvalidKeySpecException, IOException {
    AsymmetricKeyParameter keyParams = PublicKeyFactory.createKey(publicKeyInfo);
    final KeySpec keySpec;
    final KeyFactory keyFactory;
    if (keyParams instanceof RSAKeyParameters) {
        RSAKeyParameters rsa = (RSAKeyParameters) keyParams;
        keySpec = new RSAPublicKeySpec(rsa.getModulus(), rsa.getExponent());
        keyFactory = SecurityHelper.getKeyFactory("RSA");
        return keyFactory.generatePublic(keySpec);
    } else if (keyParams instanceof DSAPublicKeyParameters) {
        DSAPublicKeyParameters dsa = (DSAPublicKeyParameters) keyParams;
        DSAParameters params = dsa.getParameters();
        keySpec = new DSAPublicKeySpec(dsa.getY(), params.getP(), params.getQ(), params.getG());
        keyFactory = SecurityHelper.getKeyFactory("DSA");
        return keyFactory.generatePublic(keySpec);
    } else if (keyParams instanceof ECPublicKeyParameters) {
        ECPublicKeyParameters ec = (ECPublicKeyParameters) keyParams;
        ECDomainParameters ecParams = ec.getParameters();
        ECParameterSpec params = new ECParameterSpec(ecParams.getCurve(), ecParams.getG(), ecParams.getN(), ecParams.getH(), ecParams.getSeed());
        // NOTE: likely to fail if non BC factory picked up :
        keySpec = new ECPublicKeySpec(ec.getQ(), params);
        keyFactory = SecurityHelper.getKeyFactory("EC");
        return keyFactory.generatePublic(keySpec);
    } else {
        throw new IllegalStateException("could not generate public key for request, params type: " + keyParams);
    }
}

Example 57 with DSAPublicKeySpec

use of java.security.spec.DSAPublicKeySpec in project jruby-openssl by jruby.

the class PKey method readDSAPrivateKey.

public static KeyPair readDSAPrivateKey(final KeyFactory dsaFactory, final byte[] input) throws IOException, InvalidKeySpecException {
    ASN1Sequence seq = (ASN1Sequence) new ASN1InputStream(input).readObject();
    if (seq.size() == 6) {
        BigInteger p = ((ASN1Integer) seq.getObjectAt(1)).getValue();
        BigInteger q = ((ASN1Integer) seq.getObjectAt(2)).getValue();
        BigInteger g = ((ASN1Integer) seq.getObjectAt(3)).getValue();
        BigInteger y = ((ASN1Integer) seq.getObjectAt(4)).getValue();
        BigInteger x = ((ASN1Integer) seq.getObjectAt(5)).getValue();
        PrivateKey priv = dsaFactory.generatePrivate(new DSAPrivateKeySpec(x, p, q, g));
        PublicKey pub = dsaFactory.generatePublic(new DSAPublicKeySpec(y, p, q, g));
        return new KeyPair(pub, priv);
    }
    return null;
}

Example 58 with DSAPublicKeySpec

use of java.security.spec.DSAPublicKeySpec in project jruby-openssl by jruby.

the class PKey method readDSAPublicKey.

public static PublicKey readDSAPublicKey(final KeyFactory dsaFactory, final byte[] input) throws IOException, InvalidKeySpecException {
    ASN1Sequence seq = (ASN1Sequence) new ASN1InputStream(input).readObject();
    if (seq.size() == 4) {
        BigInteger y = ((ASN1Integer) seq.getObjectAt(0)).getValue();
        BigInteger p = ((ASN1Integer) seq.getObjectAt(1)).getValue();
        BigInteger q = ((ASN1Integer) seq.getObjectAt(2)).getValue();
        BigInteger g = ((ASN1Integer) seq.getObjectAt(3)).getValue();
        return dsaFactory.generatePublic(new DSAPublicKeySpec(y, p, q, g));
    }
    return null;
}

Example 59 with DSAPublicKeySpec

use of java.security.spec.DSAPublicKeySpec in project keycloak by keycloak.

the class DSAKeyValueType method convertToPublicKey.

/**
 * Convert to the JDK representation of a DSA Public Key
 *
 * @return
 *
 * @throws org.keycloak.saml.common.exceptions.ProcessingException
 */
public DSAPublicKey convertToPublicKey() throws ProcessingException {
    try {
        BigInteger BigY = new BigInteger(1, massage(Base64.decode(new String(y))));
        BigInteger BigP = new BigInteger(1, massage(Base64.decode(new String(p))));
        BigInteger BigQ = new BigInteger(1, massage(Base64.decode(new String(q))));
        BigInteger BigG = new BigInteger(1, massage(Base64.decode(new String(g))));
        KeyFactory dsaKeyFactory = KeyFactory.getInstance("dsa");
        DSAPublicKeySpec kspec = new DSAPublicKeySpec(BigY, BigP, BigQ, BigG);
        return (DSAPublicKey) dsaKeyFactory.generatePublic(kspec);
    } catch (Exception e) {
        throw new ProcessingException(e);
    }
}

Example 60 with DSAPublicKeySpec

use of java.security.spec.DSAPublicKeySpec in project karaf by apache.

the class PublicKeyEncodingTest method testDSA.

@Test
public void testDSA() throws FailedLoginException, NoSuchAlgorithmException, InvalidKeySpecException {
    // Generated using: ssh-keygen -t dsa
    String storedKey = "AAAAB3NzaC1kc3MAAACBAJlAn/bPWpugKCLyoQpe8AbSZiIxdEJhl+VV8YEH6jfb9lLPA9JkQAf/lnG1Jx01UM65RRyKtnMAiB" + "pkhrPy3DbqJ4FgYBmc1Sdiufomilq6zSbE0esJEMyxEvSNDQLqIiUcSwVyJJj1vpV6ZPA6ihipTIaiSV+rmfKcS05i27UlAAAAFQCg3ZtIytPmG" + "ILQ7OEifIJvCSlS5QAAAIBUbgpjk7vSWVNICgKG6OrXeK0kJYRG6AaUZSiB2neoABMyGIHQ8dBCk+jtYqRMYyoc+OPi5q43VcDMxgzR/cHGjZi6" + "0w/I3M83072dAdaoi0cleL/V8NaH+SOvkkYkAG57OIa3ly9PVpPfeXRnbbjkz1EsrvXIelqb5enLhlIgXgAAAIA11rUkN/J3K7nw/BiolhpZR3M" + "VhWWIJFjJyU7ZC0yO8a+3AExuhTI6YQvsyvlY69KCwAwZsZvx9DryDE5xTfhzYa5kV4mM4AJSrE8/GtxLUVPZLwV6eoZLv1RIqP543ihZtoFyVm" + "MaTQFj45Qo8uAuVDjx5mpk/Rk1pYPUd0lc1Q==";
    String p = "1076175237625726563105954460741409330556298182412863930703571469202992312952487088821612089126846931217220" + "139938550642040962241586994856559462488140821681403960733982209827487135132210000913512532065787125116985685638" + "40437219296134522589816052156357553531846010339651017908589163855315552516201352809575855397";
    String q = "918380515194943729419256231914804453973955269349";
    String g = "5928865413019314795162062081939159959737363875586187627523617102819491716184351195073908492559564825805562" + "104476892066919492044841627907376461274343797017375757242038772707578284292374846844427026690399002493750530347" + "2378225083646830569532678306021077676137269211638266431262139218141967811197461432032698462";
    String y = "3780682190459260799543888842390974417268312111951424991203659597814001671832656608276823896973755971735795" + "130565245682634187551545737028902938478313465290457154458005480679650487421678748598551351730312164280338152996" + "0448119336850459047721615478019482431582683540283279032651976075781966545889409150149549269";
    // Generate a PublicKey using the known values
    KeyFactory keyFactory = KeyFactory.getInstance("DSA");
    KeySpec publicKeySpec = new DSAPublicKeySpec(new BigInteger(y), new BigInteger(p), new BigInteger(q), new BigInteger(g));
    PublicKey publicKey = keyFactory.generatePublic(publicKeySpec);
    assertTrue(PublickeyLoginModule.equals(publicKey, storedKey));
    // Make sure a different stored key does not work
    String differentKey = "AAAAB3NzaC1kc3MAAACBALE+qmsDN5lJYqQUmtrM7RI4vFcAQnla7Jp8Qy5ZUf63IFEA+tDzareKZOadwYbHOrIq3bDFCMH" + "HIVvFWJNhcJUBH8ZZnk7942Sxg6P5B3OQlCC6O4ADpe6NmwsxCpjpkyJizWTwvTspE6vV32VMa70UJlL1OtymgsWDef8ZQKqBAAAAFQCwiMFuOv" + "t6AZ1PgOwytbS1ra/FswAAAIAvf9b+K6eF6Mx3CnUVMHVldK4VybXjn/GwARH7BG8HJ8aGmMLvhk2qKGN5NatxgAc6IzRcwFbKvtniTTh06seuY" + "CwIvHs+7nldZ255D23as90jAqstkBGt5NmX5R/TgHQPwQILJpydaYUEf6f/KU6MZPANo8cbEi2hxgljWCQcwAAAAIEAh2S+0V+64AZy8+T03eMX" + "yBmt4xn8JPJzIHizF4VeUpTVwyA2EsiG9/YEWEGATj7mAcfAmLKl5rV1tQdXgUl2uxCDXw91c9PrYbfrHJjD1Oj6xHOjExDZI31Z8S6OKwo7df7" + "0GumGSDsg0nibs5rEwkkcT64AOMn1o4JvabsP200=";
    assertFalse(PublickeyLoginModule.equals(publicKey, differentKey));
}