Update of /cvsroot/freenet/freenet/src/freenet
In directory sc8-pr-cvs1:/tmp/cvs-serv22801/src/freenet
Modified Files:
Key.java
Log Message:
Added capability for Key to convert itself to a BigInteger.
Index: Key.java
===================================================================
RCS file: /cvsroot/freenet/freenet/src/freenet/Key.java,v
retrieving revision 1.7
retrieving revision 1.8
diff -u -w -r1.7 -r1.8
--- Key.java 30 Oct 2003 01:34:01 -0000 1.7
+++ Key.java 2 Nov 2003 15:35:29 -0000 1.8
@@ -3,6 +3,7 @@
import java.io.InputStream;
import java.lang.reflect.Constructor;
import java.lang.reflect.InvocationTargetException;
+import java.math.BigInteger;
import java.util.Hashtable;
import freenet.crypt.ProgressiveHashInputStream;
@@ -34,6 +35,8 @@
public static final int LOG2_MAXSIZE = 62,
LOG2_MINSIZE = 10;
+ public static final int KEYBYTES = 23;
+
private static final Hashtable keytypes = new Hashtable();
/**
@@ -172,6 +175,22 @@
public Key(byte[] val) {
this.val = val;
}
+
+ // Interpret key as value between 0 and 2^183.
+ public BigInteger toBigInteger() {
+ byte[] b = getVal();
+ if (b.length < KEYBYTES) {
+ byte[] ob = new byte[KEYBYTES];
+ System.arraycopy(b, 0, ob, 0, b.length);
+ b = ob;
+ }
+ if (b.length > KEYBYTES) {
+ Core.logger.log(this, "Very long key detected!: " + this, new
Exception("debug"), Logger.NORMAL);
+ byte[] ob = new byte[KEYBYTES];
+ System.arraycopy(b, 0, ob, 0, KEYBYTES);
+ }
+ return new BigInteger(1, b);
+ }
/**
* Makes a copy of the byte array and adds the end bytes
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