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From "Sergey Dmitriev (JIRA)" <j...@apache.org>
Subject [jira] Created: (HARMONY-3789) Diffie-Hellman KeyPairGenerator hangs on generating public/private keys
Date Sun, 29 Apr 2007 17:57:15 GMT
Diffie-Hellman KeyPairGenerator hangs on generating public/private keys

                 Key: HARMONY-3789
                 URL: https://issues.apache.org/jira/browse/HARMONY-3789
             Project: Harmony
          Issue Type: Bug
          Components: Classlib
         Environment: linux-ia32, win-ia32
            Reporter: Sergey Dmitriev

Diffie-Hellman KeyPairGenerator hangs on generating public/private
pair of keys (at least it takes more than 5 minutes of 100% CPU load,
I pressed Ctrl-C). On JRockit it takes about couple of seconds on same

] boy@moon ~
] time java -showversion keypair
java version "1.5.0"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-b64)
BEA WebLogic JRockit(R) (build dra-38972-20041208-2001-linux-ia32, R25.0.0-75, GC: System
optimized over throughput (initial strategy singleparpar))
kpg    : java.security.KeyPairGenerator$Delegate@80d0bd8
keypair: java.security.KeyPair@80d2c33
real    0m2.845s
user    0m1.854s
sys     0m0.178s

] boy@moon ~
] time ~/jre2/bin/java -showversion keypair
Apache Harmony Launcher : (c) Copyright 1991, 2006 The Apache Software Foundation or its licensors,
as applicable.
java version "1.5.0" 
pre-alpha : not complete or compatible
svn = r532358, (Apr 25 2007), Linux/ia32/gcc 3.3.3, release build
kpg    : org.bouncycastle.jce.provider.JDKKeyPairGenerator$DH@128
real    5m17.690s
user    5m16.204s
sys     0m0.485s

] boy@moon ~
] cat keypair.java 
import java.security.*;
public class keypair {
    public static void main(String args[]) throws Exception {
        KeyPairGenerator kpg = KeyPairGenerator.getInstance("DH");
        System.out.println("kpg    : " + kpg);
        System.out.println("keypair: " + kpg.genKeyPair());

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