PatchSet 6769
Date: 2005/07/27 22:47:07
Author: kaz
Branch: HEAD
Tag: (none)
Log:
2005-07-28 Ito Kazumitsu <[EMAIL PROTECTED]>
* test/regression/SecureRandomTest.java:
Use kaffe's security provider explicitly.
Members:
ChangeLog:1.4294->1.4295
test/regression/SecureRandomTest.java:INITIAL->1.3
Index: kaffe/ChangeLog
diff -u kaffe/ChangeLog:1.4294 kaffe/ChangeLog:1.4295
--- kaffe/ChangeLog:1.4294 Tue Jul 26 16:21:58 2005
+++ kaffe/ChangeLog Wed Jul 27 22:47:07 2005
@@ -1,3 +1,8 @@
+2005-07-28 Ito Kazumitsu <[EMAIL PROTECTED]>
+
+ * test/regression/SecureRandomTest.java:
+ Use kaffe's security provider explicitly.
+
2005-07-26 Dalibor Topic <[EMAIL PROTECTED]>
Resynced with GNU Classpath.
===================================================================
Checking out kaffe/test/regression/SecureRandomTest.java
RCS: /home/cvs/kaffe/kaffe/test/regression/SecureRandomTest.java,v
VERS: 1.3
***************
--- /dev/null Sun Aug 4 19:57:58 2002
+++ kaffe/test/regression/SecureRandomTest.java Wed Jul 27 22:52:12 2005
@@ -0,0 +1,101 @@
+
+import java.security.*;
+
+class SecureRandomTest
+{
+ private static final int HISTORY_SIZE = 20;
+ private static final int ITERATIONS = 10;
+
+ public static final String toPlainString(byte bytes[], int maxBytes)
+ {
+ String retval = "";
+
+ if( bytes != null )
+ {
+ int lpc;
+
+ if( maxBytes > bytes.length )
+ maxBytes = bytes.length;
+ for( lpc = 0; lpc < maxBytes; lpc++ )
+ {
+ if( (bytes[lpc] & 0xf0) == 0 )
+ retval += "0" + Integer.toHexString(bytes[lpc] & 0xff);
+ else
+ retval += Integer.toHexString(bytes[lpc] & 0xff);
+ }
+ }
+ else
+ {
+ retval = "(null)";
+ }
+ return retval;
+ }
+
+ private static void checkHistory(byte history[][], byte data[])
+ {
+ int lpc;
+
+ for( lpc = 0; lpc < history.length; lpc++ )
+ {
+ boolean match = true;
+ int lpc2;
+
+ if( history[lpc] == null )
+ continue;
+ for( lpc2 = 0; lpc2 < data.length; lpc2++ )
+ {
+ match = match && (history[lpc][lpc2] == data[lpc2]);
+ }
+ if( match )
+ {
+ throw new Error("The \"secure\" random isn't! : lpc= " + lpc
+ + " lpc2 = " + lpc2
+ + " data = " + toPlainString(data,
Integer.MAX_VALUE));
+ }
+ }
+ }
+
+ public static void main(String args[])
+ throws Throwable
+ {
+ byte history[][];
+ SecureRandom sr;
+ int lpc, hist;
+ byte data[];
+
+ Security.addProvider(new kaffe.security.provider.Kaffe());
+
+ /*
+ * Make sure the SecureRandom's produce different sequences after
+ * initialization.
+ */
+ history = new byte[HISTORY_SIZE][];
+ /*
+ * Now that we have added new kaffe.security.provider.Kaffe()
+ * to the list of security providers, we may well explicitly
+ * request Kaffe's SHA1PRNG to be used.
+ * Otherwise, in some poor environment, GNU classpath's default
+ * provider may be used, which, at the moment of this writing,
+ * is not strong enough to pass this test. (Thu Jul 28, 2005)
+ */
+ sr = SecureRandom.getInstance("SHA1PRNG", "KAFFE");
+ for( lpc = 0, hist = 0; lpc < ITERATIONS; lpc++, hist++ )
+ {
+ data = new byte[20];
+ sr.nextBytes(data);
+ history[hist % HISTORY_SIZE] = data;
+ }
+ sr = SecureRandom.getInstance("SHA1PRNG", "KAFFE");
+ for( lpc = 0, hist = 0; lpc < ITERATIONS; lpc++, hist++ )
+ {
+ data = new byte[20];
+ sr.nextBytes(data);
+ checkHistory(history, data);
+ }
+ System.out.println("Two SecureRandoms produce different output.");
+ }
+}
+
+/* Expected Output:
+Two SecureRandoms produce different output.
+*/
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