Examples of codec.x509.AlgorithmIdentifier

org.bouncycastle.asn1.x509.AlgorithmIdentifier
This class represents the ASN.1/DER value of the AlgorithmIdentifier defined in Annex D to Recommendation X.509. This structure is extensively used for instance in the PKCS standards of RSA Inc. The ASN.1 definition of this structure is as given below:
```
 AlgorithmIdentifier  ::= SEQUENCE{ algorithm  OBJECT IDENTIFIER, parameters ANY DEFINED BY algorithm OPTIONAL } 
```
For this class to work properly, providers need to define the following algorithm aliases for the {@link java.security.AlgorithmParameters AlgorithmParameters} implementations they provide:
1. AlgorithmParameters.MyAlg = class
2. Alg.Alias.AlgorithmParameters.1.2.3.4 = MyAlg
3. Alg.Alias.AlgorithmParameters.OID.1.2.3.4 = MyAlg
The first property defined the mapping of the JCE compliant standard name of the algorithm to the implementing class. The second provider entry allows mapping OID to those algorithm names while the third allows mapping those names on corresponding OID.
The alias definitions are used by this class in order to find an AlgorithmParameters implementation for the OID embedded in the X.509 AlgorithmIdentifier structure, and to create the OID for a given AlgorithmParameters instances. This is done by means of the {@link JCA JCA}class, which operates on the engine and alias definitions of the installed providers.
@author Volker Roth @version "$Id: AlgorithmIdentifier.java,v 1.3 2004/08/13 11:37:03 pebingerExp $" @see JCA

    public DSAPrivateKeyImpl(PKCS8EncodedKeySpec keySpec)
            throws InvalidKeySpecException {


        super("DSA"); //$NON-NLS-1$


        AlgorithmIdentifier ai;
        ThreeIntegerSequence threeInts = null;


        String alg, algName;


        byte encoding[] = keySpec.getEncoded();


        PrivateKeyInfo privateKeyInfo = null;


        try {
            privateKeyInfo = (PrivateKeyInfo) PrivateKeyInfo.ASN1
                    .decode(encoding);
        } catch (IOException e) {
            throw new InvalidKeySpecException(Messages.getString(
                    "security.19A", e)); //$NON-NLS-1$
        }


        try {
            x = new BigInteger((byte[]) ASN1Integer.getInstance().decode(
                    privateKeyInfo.getPrivateKey()));
        } catch (IOException e) {
            throw new InvalidKeySpecException(Messages.getString(
                    "security.19B", e)); //$NON-NLS-1$
        }


        ai = privateKeyInfo.getAlgorithmIdentifier();
        try {
            threeInts = (ThreeIntegerSequence) ThreeIntegerSequence.ASN1
                    .decode(ai.getParameters());
        } catch (IOException e) {
            throw new InvalidKeySpecException(Messages.getString(
                    "security.19B", e)); //$NON-NLS-1$
        }
        params = new DSAParameterSpec(new BigInteger(threeInts.p),
                new BigInteger(threeInts.q), new BigInteger(threeInts.g));


        setEncoding(encoding);


        /* 
         * the following code implements RI behavior
         */
        alg = ai.getAlgorithm();
        algName = AlgNameMapper.map2AlgName(alg);
        setAlgorithm(algName == null ? alg : algName);
    }

View Full Code Here

        BigInteger g = keySpec.getG();


        ThreeIntegerSequence threeInts = new ThreeIntegerSequence(p
                .toByteArray(), q.toByteArray(), g.toByteArray());


        AlgorithmIdentifier ai = new AlgorithmIdentifier(AlgNameMapper
                .map2OID("DSA"), //$NON-NLS-1$
                threeInts.getEncoded());


        y = keySpec.getY();

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    public DSAPublicKeyImpl(X509EncodedKeySpec keySpec)
            throws InvalidKeySpecException {


        super("DSA"); //$NON-NLS-1$


        AlgorithmIdentifier ai;
        ThreeIntegerSequence threeInts = null;


        SubjectPublicKeyInfo subjectPublicKeyInfo = null;


        byte encoding[] = keySpec.getEncoded();


        String alg, algName;


        try {
            subjectPublicKeyInfo = (SubjectPublicKeyInfo) SubjectPublicKeyInfo.ASN1
                    .decode(encoding);
        } catch (IOException e) {
            throw new InvalidKeySpecException(Messages.getString(
                    "security.19A", e)); //$NON-NLS-1$
        }


        try {
            y = new BigInteger((byte[]) ASN1Integer.getInstance().decode(
                    subjectPublicKeyInfo.getSubjectPublicKey()));
        } catch (IOException e) {
            throw new InvalidKeySpecException(Messages.getString(
                    "security.19B", e)); //$NON-NLS-1$
        }


        ai = subjectPublicKeyInfo.getAlgorithmIdentifier();


        try {
            threeInts = (ThreeIntegerSequence) ThreeIntegerSequence.ASN1
                    .decode(ai.getParameters());
        } catch (IOException e) {
            throw new InvalidKeySpecException(Messages.getString(
                    "security.19B", e)); //$NON-NLS-1$
        }
        params = (DSAParams) (new DSAParameterSpec(new BigInteger(threeInts.p),
                new BigInteger(threeInts.q), new BigInteger(threeInts.g)));


        setEncoding(encoding);


        /* 
         * the following code implements RI behavior
         */
        alg = ai.getAlgorithm();
        algName = AlgNameMapper.map2AlgName(alg);
        setAlgorithm(algName == null ? alg : algName);
    }

View Full Code Here

     * all functionality will be tested.
     * @return
     * @throws java.lang.Exception 
     */
    protected void setUp() throws java.lang.Exception {
        AlgorithmIdentifier signature = 
            new AlgorithmIdentifier(algOID, algParams);
        Name issuer = new Name(issuerName);
        Name subject = new Name(subjectName);
        Validity validity = 
            new Validity(new Date(notBefore), new Date(notAfter));

View Full Code Here

     */
    public void testCertificate() throws Exception {
        // make the TBSCertificate for Certificate
        int version = 2; //v3
        BigInteger serialNumber = BigInteger.valueOf(555L); 
        AlgorithmIdentifier signature = new AlgorithmIdentifier("1.2.3.44.555"); // random value
        Name issuer = new Name("O=Certificate Issuer");
        Validity validity = new Validity(new Date(100000000), new Date(200000000));
        Name subject = new Name("O=Subject Organization"); 
        SubjectPublicKeyInfo subjectPublicKeyInfo = 
            new SubjectPublicKeyInfo(new AlgorithmIdentifier("1.2.840.113549.1.1.2"), 
                    new byte[10]);
        boolean[]   issuerUniqueID  = new boolean[] 
                    {true, false, true, false, true, false, true, false}; // random value
        boolean[]   subjectUniqueID = new boolean[]
                    {false, true, false, true, false, true, false, true}; // random value

View Full Code Here

     * CertificateList(TBSCertList tbsCertList, AlgorithmIdentifier
     * signatureAlgorithm, byte[] signatureValue) method testing.
     */
    public void testCertificateList() {
        try {
            AlgorithmIdentifier signature = 
                new AlgorithmIdentifier(algOID, algParams);
            Name issuer = new Name(issuerName);
            TBSCertList tbscl = 
                new TBSCertList(signature, issuer, thisUpdate);
            CertificateList cl = 
                new CertificateList(tbscl, signature, new byte[] {0});

View Full Code Here

    private byte[] getCertEncoding(Name subject, GeneralNames subjectAltNames)
                                                        throws IOException {
        // make the TBSCertificate for Certificate
        int version = 2; //v3
        BigInteger serialNumber = BigInteger.valueOf(555L); 
        AlgorithmIdentifier signature = new AlgorithmIdentifier("1.2.3.44.555");
        Name issuer = new Name("O=Certificate Issuer");
        Validity validity = new Validity(new Date(100000000), 
                                         new Date(200000000));
        SubjectPublicKeyInfo subjectPublicKeyInfo = 
            new SubjectPublicKeyInfo(
                    new AlgorithmIdentifier("1.2.840.113549.1.1.2"), 
                                            new byte[10]);
        boolean[] issuerUniqueID  = new boolean[] 
                    {true, false, true, false, true, false, true, false};
        boolean[] subjectUniqueID = new boolean[]
                    {false, true, false, true, false, true, false, true};

View Full Code Here

                    + " is not found in the environment.");
        }
        sigAlgName = sigAlgNameAndOID[0];
        String sigAlgOID = sigAlgNameAndOID[1];


        AlgorithmIdentifier algId = new AlgorithmIdentifier(sigAlgOID);


        // generate a distinguished name using the string
        Name subjectDName = null;
        Name issuerDName = null;
        try {

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            params = new X962Parameters(ecP);
        }


        ASN1OctetString    p = (ASN1OctetString)(new X9ECPoint(this.getQ()).getDERObject());


        SubjectPublicKeyInfo info = new SubjectPublicKeyInfo(new AlgorithmIdentifier(X9ObjectIdentifiers.id_ecPublicKey, params.getDERObject()), p.getOctets());


        try
        {
            dOut.writeObject(info);
            dOut.close();

View Full Code Here

        if (sigOID == null)
        {
            throw new IllegalArgumentException("Unknown signature type requested");
        }


        sigAlgId = new AlgorithmIdentifier(this.sigOID, new DERNull());


        tbsGen.setSignature(sigAlgId);
    }

View Full Code Here

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