1 files changed, 159 insertions, 0 deletions
diff --git a/base/util/src/com/netscape/cmsutil/ocsp/Signature.java b/base/util/src/com/netscape/cmsutil/ocsp/Signature.java
new file mode 100644
index 000000000..b9b192aee
--- /dev/null
+++ b/base/util/src/com/netscape/cmsutil/ocsp/Signature.java
@@ -0,0 +1,159 @@
+// --- 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 com.netscape.cmsutil.ocsp;
+
+import java.io.IOException;
+import java.io.InputStream;
+import java.io.OutputStream;
+
+import org.mozilla.jss.asn1.ASN1Template;
+import org.mozilla.jss.asn1.ASN1Value;
+import org.mozilla.jss.asn1.BIT_STRING;
+import org.mozilla.jss.asn1.EXPLICIT;
+import org.mozilla.jss.asn1.InvalidBERException;
+import org.mozilla.jss.asn1.SEQUENCE;
+import org.mozilla.jss.asn1.Tag;
+import org.mozilla.jss.pkix.cert.Certificate;
+import org.mozilla.jss.pkix.primitive.AlgorithmIdentifier;
+
+/**
+ * RFC 2560:
+ * 
+ * <pre>
+ * Signature       ::=     SEQUENCE {
+ *  signatureAlgorithm   AlgorithmIdentifier,
+ *  signature            BIT STRING,
+ *  certs                [0] EXPLICIT SEQUENCE OF Certificate OPTIONAL }
+ * </pre>
+ * 
+ * @version $Revision$ $Date$
+ */
+
+public class Signature implements ASN1Value {
+    ///////////////////////////////////////////////////////////////////////
+    // Members and member access
+    ///////////////////////////////////////////////////////////////////////
+    private AlgorithmIdentifier signatureAlgorithm;
+    private BIT_STRING signature;
+    private SEQUENCE certs;
+    private SEQUENCE sequence;
+
+    public AlgorithmIdentifier getSignatureAlgorithm() {
+        return signatureAlgorithm;
+    }
+
+    public BIT_STRING getSignature() {
+        return signature;
+    }
+
+    public int getCertificateCount() {
+        if (certs == null) {
+            return 0;
+        } else {
+            return certs.size();
+        }
+    }
+
+    public Certificate getCertificateAt(int index) {
+        if (certs == null) {
+            throw new ArrayIndexOutOfBoundsException();
+        }
+        return (Certificate) certs.elementAt(index);
+    }
+
+    public Signature(AlgorithmIdentifier signatureAlgorithm,
+            BIT_STRING signature, SEQUENCE certs) {
+        sequence = new SEQUENCE();
+
+        this.signatureAlgorithm = signatureAlgorithm;
+        sequence.addElement(signatureAlgorithm);
+
+        this.signature = signature;
+        sequence.addElement(signature);
+
+        this.certs = certs;
+        sequence.addElement(certs);
+    }
+
+    ///////////////////////////////////////////////////////////////////////
+    // encode / decode
+    ///////////////////////////////////////////////////////////////////////
+    private static final Tag TAG = SEQUENCE.TAG;
+
+    public Tag getTag() {
+        return TAG;
+    }
+
+    public void encode(OutputStream ostream) throws IOException {
+        encode(TAG, ostream);
+    }
+
+    public void encode(Tag implicitTag, OutputStream ostream)
+            throws IOException {
+        sequence.encode(implicitTag, ostream);
+    }
+
+    private static final Template templateInstance = new Template();
+
+    public static Template getTemplate() {
+        return templateInstance;
+    }
+
+    /**
+     * A Template for decoding Request.
+     */
+    public static class Template implements ASN1Template {
+
+        private SEQUENCE.Template seqt;
+
+        public Template() {
+            seqt = new SEQUENCE.Template();
+            seqt.addElement(AlgorithmIdentifier.getTemplate());
+            seqt.addElement(BIT_STRING.getTemplate());
+            seqt.addOptionalElement(
+                    new EXPLICIT.Template(
+                            new Tag(0),
+                            new SEQUENCE.OF_Template(new Certificate.Template())
+                    )
+                    );
+        }
+
+        public boolean tagMatch(Tag tag) {
+            return TAG.equals(tag);
+        }
+
+        public ASN1Value decode(InputStream istream)
+                throws InvalidBERException, IOException {
+            return decode(TAG, istream);
+        }
+
+        public ASN1Value decode(Tag implicitTag, InputStream istream)
+                throws InvalidBERException, IOException {
+            SEQUENCE seq = (SEQUENCE) seqt.decode(implicitTag, istream);
+            SEQUENCE certs = null;
+            if (seq.elementAt(2) != null) {
+                certs = (SEQUENCE) ((EXPLICIT) seq.elementAt(2)).getContent();
+            }
+
+            return new Signature(
+                    (AlgorithmIdentifier) seq.elementAt(0),
+                    (BIT_STRING) seq.elementAt(1),
+                    certs);
+        }
+    }
+}