working along to decode the DEROctetString

build.xml

@@ -18,7 +18,12 @@
   <target name="compile" depends="init"
         description="compile the source " >
     <!-- Compile the java code from ${src.dir} into ${build.dir} -->
-    <javac srcdir="${src.dir}" destdir="${build.dir}"/>
+    <javac includeantruntime="false" srcdir="${src.dir}" destdir="${build.dir}">
+        <classpath>
+            <pathelement path="${classpath}"/>
+            <pathelement location="lib/bcprov-jdk16-1.46.jar"/>
+        </classpath>
+    </javac>
   </target>
 
   <target name="dist" depends="compile"

data/test-certv3.pem

@@ -0,0 +1,70 @@
+-----BEGIN CERTIFICATE-----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+-----END CERTIFICATE-----
+-----BEGIN ENTITLEMENT DATA-----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+-----END ENTITLEMENT DATA-----
+-----BEGIN RSA SIGNATURE-----
+cN+DtEyAEoB6VRj3JQUiF++Yn/jDEAXpEkU5jtILZmWVBCTm/IgBSoEh8+idrZSF
+nkAyrw5JB7YbKwmcfhyDU4/tE/x4WLZhd7e4Fs3IndY/S/YzYL8mafOK2PbVGxeA
+ZyAnDZPe/CYX/FzNEgk4z62EbvYAtMMx4I3aif5qce8=
+-----END RSA SIGNATURE-----
+-----BEGIN RSA PRIVATE KEY-----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+-----END RSA PRIVATE KEY-----

run.sh

@@ -0,0 +1,4 @@
+#!/bin/sh
+
+java -cp ./lib/bcprov-jdk16-1.46.jar:$(ls -rt ./dist/*jar | tail -1) com.hashbangbash.trie.App ./data/test-certv3.pem
+

src/main/java/com/hashbangbash/trie/App.java

@@ -4,10 +4,13 @@ import java.util.List;
 import java.util.ArrayList;
 import java.util.Arrays;
 
+import java.io.InputStream;
 import java.io.DataInputStream;
 import java.io.FileInputStream;
 import java.io.InputStreamReader;
 import java.io.BufferedReader;
+import java.io.BufferedInputStream;
+import java.io.File;
 
 import java.io.FileNotFoundException;
 import java.io.IOException;
@@ -15,46 +18,224 @@ import java.io.IOException;
 import com.redhat.trie.PathNode;
 import com.redhat.trie.Util;
 
+import java.util.zip.Inflater;
+import java.util.zip.InflaterOutputStream;
+import java.util.zip.Deflater;
+import java.util.zip.DeflaterOutputStream;
+import java.util.zip.DataFormatException;
+import java.security.cert.Certificate;
+import java.security.cert.CertificateException;
+import java.security.cert.X509Certificate;
+import java.security.cert.CertificateFactory;
+import java.io.ByteArrayInputStream;
+import java.io.ByteArrayOutputStream;
+
+import org.bouncycastle.asn1.*;
+//import org.bouncycastle.asn1.ASN1Encodable;
+//import org.bouncycastle.asn1.ASN1InputStream;
+import org.bouncycastle.x509.extension.X509ExtensionUtil;
+
+
 public class App {
-    public static void main(String[] args) {
+    public static ASN1InputStream toASN1Stream(byte[] b) {
+        return new ASN1InputStream(new ByteArrayInputStream(b));
+    }
+
+    public final static byte[] decompress(byte[] input) {
+        Inflater inflator = new Inflater();
+        inflator.setInput(input);
+        ByteArrayOutputStream bos = new ByteArrayOutputStream(input.length);
+        byte[] buf = new byte[1024];
+        try {
+            while (true) {
+                int count = inflator.inflate(buf);
+                if (count > 0) {
+                    bos.write(buf, 0, count);
+                } else if (count == 0 && inflator.finished()) {
+                    break;
+                } else {
+                    throw new RuntimeException("bad zip data, size:"
+                            + input.length);
+                }
+            }
+        } catch (DataFormatException t) {
+            throw new RuntimeException(t);
+        } finally {
+            inflator.end();
+        }
+        return bos.toByteArray();
+    }
+
+    public static byte[] getBytesFromFile(File file) throws IOException {
+        InputStream is = new FileInputStream(file);
+
+        // Get the size of the file
+        long length = file.length();
+
+        // You cannot create an array using a long type.
+        // It needs to be an int type.
+        // Before converting to an int type, check
+        // to ensure that file is not larger than Integer.MAX_VALUE.
+        if (length > Integer.MAX_VALUE) {
+            // File is too large
+        }
+
+        // Create the byte array to hold the data
+        byte[] bytes = new byte[(int)length];
+
+        // Read in the bytes
+        int offset = 0;
+        int numRead = 0;
+        while (offset < bytes.length
+            && (numRead=is.read(bytes, offset, bytes.length-offset)) >= 0) {
+            offset += numRead;
+        }
+
+        // Ensure all the bytes have been read in
+        if (offset < bytes.length) {
+            throw new IOException("Could not completely read file "+file.getName());
+        }
+
+        // Close the input stream and return bytes
+        is.close();
+        return bytes;
+    }
+
+
+    public static List<String> hydrateFromBytes(byte[] derblob) {
         Util util = new Util();
+
+        try {
+            return util.hydrateContentPackage(derblob);
+        } catch (IOException ex) {
+            System.out.println(ex);
+        }
+        return null;
+    }
+
+    public static List<String> hydrateFromFile(String filename) {
+        try {
+            return hydrateFromBytes(getBytesFromFile(new File(filename)));
+        } catch (IOException ex) {
+            System.out.println(ex);
+        }
+        return null;
+    }
+
+    public static void showTreeFromCSFIle(String filename) {
         FileInputStream fis;
         DataInputStream in;
         BufferedReader br;
 
         String content;
         List<String> contentList;
+        Util util = new Util();
 
+        try {
+            fis = new FileInputStream(filename);
+        } catch (FileNotFoundException ex) {
+            System.out.printf("ERROR: failed to find file %s\n", filename);
+            return;
+        } catch (Throwable t) {
+            System.out.printf("ERROR: [%s] %s\n", filename, t);
+            return;
+        }
+
+        in = new DataInputStream(fis);
+        br = new BufferedReader(new InputStreamReader(in));
+        contentList = new ArrayList<String>();
+
+        try {
+        while ((content = br.readLine()) != null) {
+            contentList.add(content);
+        }
+        } catch (IOException ex) {
+            System.out.printf("ERROR: [%s] - %s\n", filename, ex);
+            return;
+        }
+
+        //System.out.println(contentList.toString());
+        PathNode root = new PathNode();
+        util.makePathTree(contentList, root);
+        Util.printTree(root, 0);
+    }
+
+    public static ASN1Encodable objectFromCertOid(String certFilename, String oid) {
+        X509Certificate cert;
+        cert = certFromFile(certFilename);
+        if (cert == null) { return null; }
+
+        try {
+            for (String thisOid : cert.getNonCriticalExtensionOIDs()) {
+                if (thisOid.equals(oid)) {
+                    return X509ExtensionUtil.fromExtensionValue(cert.getExtensionValue(oid));
+                }
+            }
+        } catch (IOException ex) { }
+        return null;
+    }
+
+    public static X509Certificate certFromFile(String certFilename) {
+        FileInputStream fis;
+        BufferedInputStream bis;
+        CertificateFactory cf;
+        X509Certificate cert;
+
+        try {
+            fis = new FileInputStream(certFilename);
+        } catch (FileNotFoundException ex) {
+            return null;
+        }
+
+        bis = new BufferedInputStream(fis);
+
+        try {
+            cf = CertificateFactory.getInstance("X.509");
+        } catch (CertificateException ex) {
+            return null;
+        }
+
+        try {
+            while (bis.available() > 0) {
+                cert = (X509Certificate) cf.generateCertificate(bis);
+                return cert;
+            }
+        } catch (IOException ex) {
+        } catch (CertificateException cex) {
+        }
+        return null;
+    }
+
+    public static void main(String[] args) {
         for (String arg : args) {
-            try {
-                fis = new FileInputStream(arg);
-            } catch (FileNotFoundException ex) {
-                System.out.printf("ERROR: failed to find file %s\n", arg);
-                continue;
-            } catch (Throwable t) {
-                System.out.printf("ERROR: [%s] %s\n", arg, t);
-                continue;
-            }
+            //showTreeFromCSFIle(arg);
+            //showTreeFromCSFIle(arg);
+            //bytesFromCertOid(arg, "1.3.6.1.4.1.2312.9.7");
+            //System.out.println(objectFromCertOid(arg, "1.3.6.1.4.1.2312.9.7").toString());
 
-            in = new DataInputStream(fis);
-            br = new BufferedReader(new InputStreamReader(in));
-            contentList = new ArrayList<String>();
+            //System.out.println(objectFromCertOid(arg, "1.3.6.1.4.1.2312.9.7").getClass().getName());
+            DEROctetString dos;
+            byte[] bytes;
+            ByteArrayOutputStream baos = new ByteArrayOutputStream();
+            List<String> contents;
 
+            dos = (DEROctetString)objectFromCertOid(arg, "1.3.6.1.4.1.2312.9.7");
             try {
-            while ((content = br.readLine()) != null) {
-                contentList.add(content);
-            }
+                baos.write(dos.getOctets());
             } catch (IOException ex) {
-                System.out.printf("ERROR: [%s] - %s\n", arg, ex);
-                continue;
+                System.out.println(ex);
+            }
+            bytes = decompress(baos.toByteArray());
+            contents = hydrateFromBytes(bytes);
+            if (contents != null) {
+                for (String content : contents) {
+                 System.out.println(content);
+                }
             }
 
-            //System.out.println(contentList.toString());
 
-            PathNode root = new PathNode();
-            util.makePathTree(contentList, root);
-
-            Util.printTree(root, 0);
+            //X509Certificate cert = certFromFile(arg);
+            //System.out.println(cert.toString());
         }
     }
 }

src/main/java/com/redhat/trie/Util.java

@@ -521,6 +521,7 @@ public class Util {
         pathDictionary.add(new HuffNode(HuffNode.END_NODE, weight));
         HuffNode pathTrie = makeTrie(pathDictionary);
 
+        // setup input stream, offset by the dictionary, to the end
         StringBuffer nodeBits = new StringBuffer();
         ByteArrayInputStream bais = new ByteArrayInputStream(payload,
             (new Long(read)).intValue(), (new Long(payload.length - read).intValue()));