diff options
Diffstat (limited to 'base/util/src/netscape/security/x509/CertificateAlgorithmId.java')
-rw-r--r-- | base/util/src/netscape/security/x509/CertificateAlgorithmId.java | 189 |
1 files changed, 189 insertions, 0 deletions
diff --git a/base/util/src/netscape/security/x509/CertificateAlgorithmId.java b/base/util/src/netscape/security/x509/CertificateAlgorithmId.java new file mode 100644 index 000000000..41610844e --- /dev/null +++ b/base/util/src/netscape/security/x509/CertificateAlgorithmId.java @@ -0,0 +1,189 @@ +// --- BEGIN COPYRIGHT BLOCK --- +// This program is free software; you can redistribute it and/or modify +// it under the terms of the GNU General Public License as published by +// the Free Software Foundation; version 2 of the License. +// +// This program is distributed in the hope that it will be useful, +// but WITHOUT ANY WARRANTY; without even the implied warranty of +// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the +// GNU General Public License for more details. +// +// You should have received a copy of the GNU General Public License along +// with this program; if not, write to the Free Software Foundation, Inc., +// 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. +// +// (C) 2007 Red Hat, Inc. +// All rights reserved. +// --- END COPYRIGHT BLOCK --- +package netscape.security.x509; + +import java.io.IOException; +import java.io.InputStream; +import java.io.ObjectInputStream; +import java.io.ObjectOutputStream; +import java.io.OutputStream; +import java.io.Serializable; +import java.util.Enumeration; +import java.util.Vector; + +import netscape.security.util.DerInputStream; +import netscape.security.util.DerOutputStream; +import netscape.security.util.DerValue; + +/** + * This class defines the AlgorithmId for the Certificate. + * + * @author Amit Kapoor + * @author Hemma Prafullchandra + * @version 1.7 + */ +public class CertificateAlgorithmId implements CertAttrSet, Serializable { + /** + * + */ + private static final long serialVersionUID = 6084780721443376563L; + + private AlgorithmId algId; + + /** + * Identifier for this attribute, to be used with the + * get, set, delete methods of Certificate, x509 type. + */ + public static final String IDENT = "x509.info.algorithmID"; + /** + * Sub attributes name for this CertAttrSet. + */ + public static final String NAME = "algorithmID"; + public static final String ALGORITHM = "algorithm"; + + /** + * Default constructor for the certificate attribute. + * + * @param algId the Algorithm identifier + */ + public CertificateAlgorithmId(AlgorithmId algId) { + this.algId = algId; + } + + /** + * Create the object, decoding the values from the passed DER stream. + * + * @param in the DerInputStream to read the serial number from. + * @exception IOException on decoding errors. + */ + public CertificateAlgorithmId(DerInputStream in) throws IOException { + DerValue val = in.getDerValue(); + algId = AlgorithmId.parse(val); + } + + /** + * Create the object, decoding the values from the passed stream. + * + * @param in the InputStream to read the serial number from. + * @exception IOException on decoding errors. + */ + public CertificateAlgorithmId(InputStream in) throws IOException { + DerValue val = new DerValue(in); + algId = AlgorithmId.parse(val); + } + + /** + * Return the algorithm identifier as user readable string. + */ + public String toString() { + if (algId == null) + return ""; + return (algId.toString() + + ", OID = " + (algId.getOID()).toString() + "\n"); + } + + private synchronized void writeObject(ObjectOutputStream stream) + throws IOException { + encode(stream); + } + + private synchronized void readObject(ObjectInputStream stream) + throws IOException { + decode(stream); + } + + /** + * Encode the algorithm identifier in DER form to the stream. + * + * @param out the DerOutputStream to marshal the contents to. + * @exception IOException on errors. + */ + public void encode(OutputStream out) throws IOException { + DerOutputStream tmp = new DerOutputStream(); + algId.encode(tmp); + + out.write(tmp.toByteArray()); + } + + /** + * Decode the algorithm identifier from the passed stream. + * + * @param in the InputStream to unmarshal the contents from. + * @exception IOException on errors. + */ + public void decode(InputStream in) throws IOException { + DerValue derVal = new DerValue(in); + algId = AlgorithmId.parse(derVal); + } + + /** + * Set the attribute value. + */ + public void set(String name, Object obj) throws IOException { + if (!(obj instanceof AlgorithmId)) { + throw new IOException("Attribute must be of type AlgorithmId."); + } + if (name.equalsIgnoreCase(ALGORITHM)) { + algId = (AlgorithmId) obj; + } else { + throw new IOException("Attribute name not recognized by " + + "CertAttrSet:CertificateAlgorithmId."); + } + } + + /** + * Get the attribute value. + */ + public Object get(String name) throws IOException { + if (name.equalsIgnoreCase(ALGORITHM)) { + return (algId); + } else { + throw new IOException("Attribute name not recognized by " + + "CertAttrSet:CertificateAlgorithmId."); + } + } + + /** + * Delete the attribute value. + */ + public void delete(String name) throws IOException { + if (name.equalsIgnoreCase(ALGORITHM)) { + algId = null; + } else { + throw new IOException("Attribute name not recognized by " + + "CertAttrSet:CertificateAlgorithmId."); + } + } + + /** + * Return an enumeration of names of attributes existing within this + * attribute. + */ + public Enumeration<String> getAttributeNames() { + Vector<String> elements = new Vector<String>(); + elements.addElement(ALGORITHM); + return (elements.elements()); + } + + /** + * Return the name of this attribute. + */ + public String getName() { + return (NAME); + } +} |