Examples of codec.x509.AlgorithmIdentifier

org.apache.harmony.security.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

   * places as well, which is easily forgotten).
   * 
   * --volker roth
   */
  if ((aReason < 0) || (aReason == 7) || (aReason > 8)) {
      throw new X509Exception("Reasoncode unknown");
  }
  theReason = new ASN1Enumerated(aReason);
  super.setValue(theReason);
    }

View Full Code Here

        if (key == null)
        {
            throw new IllegalArgumentException("public key must not be null");
        }


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


        byte[]                  bytes = key.getEncoded();
        ByteArrayInputStream    bIn = new ByteArrayInputStream(bytes);
        ASN1InputStream         dIn = new ASN1InputStream(bIn);

View Full Code Here

        SubjectPublicKeyInfo    subjectPKInfo = reqInfo.getSubjectPublicKeyInfo();


        try
        {
            X509EncodedKeySpec      xspec = new X509EncodedKeySpec(new DERBitString(subjectPKInfo).getBytes());
            AlgorithmIdentifier     keyAlg = subjectPKInfo.getAlgorithmId ();
            try {


                if (provider == null) {
                    return KeyFactory.getInstance(keyAlg.getObjectId().getId ()).generatePublic(xspec);
                }
                else {
                    return KeyFactory.getInstance(keyAlg.getObjectId().getId (), provider).generatePublic(xspec);
                }


            } catch (NoSuchAlgorithmException e) {
                // if we can't resolve this via the OID, just as for the RSA algorithm.  This is all
                // Geronimo requires anyway.

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

        if (version.intValue() != 0)
        {
            throw new IllegalArgumentException("wrong version for private key info");
        }


        algId = new AlgorithmIdentifier((ASN1Sequence)e.nextElement());


        try
        {
            ByteArrayInputStream    bIn = new ByteArrayInputStream(((ASN1OctetString)e.nextElement()).getOctets());
            ASN1InputStream         aIn = new ASN1InputStream(bIn);

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

    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

            }
        }
        if (subjectPublicKeyAlgID  != null) {
            try {
                byte[] encoding = cert.getPublicKey().getEncoded();
                AlgorithmIdentifier ai = ((SubjectPublicKeyInfo) 
                        SubjectPublicKeyInfo.ASN1.decode(encoding))
                        .getAlgorithmIdentifier();
                if (!subjectPublicKeyAlgID.equals(ai.getAlgorithm())) {
                    return false;
                }
            } catch (IOException e) {
                e.printStackTrace();
                return false;

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();

View Full Code Here

    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

0 1 2 3 4 5 6 7 8 9

TOP

Related Classes of codec.x509.AlgorithmIdentifier

br.net.woodstock.rockframework.security.sign.impl.BouncyCastleSignerHelper

codec.asn1.ASN1BitString

codec.asn1.ASN1Boolean

codec.asn1.ASN1Choice

codec.asn1.ASN1GeneralizedTime

codec.asn1.ASN1IA5String

codec.asn1.ASN1Integer

codec.asn1.ASN1ObjectIdentifier

codec.asn1.ASN1OctetString

codec.asn1.ASN1Opaque

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.