Name: rmT116609 Date: 04/14/2004


FULL PRODUCT VERSION :
java version "1.5.0-beta"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-beta-b32c)
Java HotSpot(TM) Client VM (build 1.5.0-beta-b32c, mixed mode)


ADDITIONAL OS VERSION INFORMATION :
Suse Linux 9.0

A DESCRIPTION OF THE PROBLEM :
In the sdk 1.5-beta the function "SecureRandom.nextBytes" doesn't produce equal results when initializing "SecureRandom" with equal byte-arrays.

This problem does only exist in the jre 1.5 (beta). It works correctly in all other previous jre-versions (1.1.8 - 1.4.2) .

Reproducible on Solaris 5.9, Linux Redhat 8.0 using 1.5.0 Beta 1.
Works fine on Windows XP using 1.5.0 Beta 1.

STEPS TO FOLLOW TO REPRODUCE THE PROBLEM :
compile and run the sample-code in this bugreport

EXPECTED VERSUS ACTUAL BEHAVIOR :
EXPECTED -
equal bytearray-contents when initializing "SecureRandom" with equal values
ACTUAL -
wrong result (different bytearray-content)


REPRODUCIBILITY :
This bug can be reproduced always.

---------- BEGIN SOURCE ----------
public class Test1 {
    
    public Test1() {
    }
    
    public static void main(String[] args) {
        Test1 me = new Test1();
        me.testMe();
    }
    
    public void testMe() {
        
        int i = 0;
        boolean b = false;
        byte bak[] = {99, -68, 123, 12, -46, -7, 37, 18, 93, -73};

        byte[] newKey1 = new byte[1024];
        java.security.SecureRandom sr1 = new java.security.SecureRandom(bak);
        sr1.nextBytes(newKey1);

        byte[] newKey2 = new byte[1024];
        java.security.SecureRandom sr2 = new java.security.SecureRandom(bak);
        sr2.nextBytes(newKey2);

        //*** compare key-content ***
        for (i = 0; i < newKey1.length; i++){
            if (newKey1[i] != newKey2[i]){
                b = true;
                break;
            }
        }
        
        if (b){
            //*** error only in jre 1.5-beta !!! ***
            System.out.println("Error: Keys are not equal!");
        }else{
            //*** works correctly in jre 1.1.8 - 1.4.2 ***
            System.out.println("Keys are equal and ok.");
        }
    }
}

---------- END SOURCE ----------

Release Regression From : 1.4.2
The above release value was the last known release where this
bug was known to work. Since then there has been a regression.
(Incident Review ID: 249774)
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