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Problems using crypto library

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Hi to all,

I have checked out the following code from the Sun site:

import javax.crypto.KeyGenerator;
import javax.crypto.Mac;
import javax.crypto.SecretKey;

public class SecurityTest {
    public static void main(String[] args) throws Exception {
        String name = "HmacMD5";
        // Generate secret key for HMAC-MD5
        SecretKey sk = null;
        KeyGenerator kg = KeyGenerator.getInstance(name);
        sk = kg.generateKey();
        // Get instance of Mac object implementing HMAC-MD5, and
        // initialize it with the above secret key
        Mac mac = Mac.getInstance(name);
        mac.init(sk);
        byte[] result = mac.doFinal("Hi There".getBytes());
    }
}

It works fine using java 1.4.2.

Updating to 1.5.0_03 I get the following Exception:
Exception in thread "main" java.security.NoSuchAlgorithmException: HmacMD5 
KeyGenerator not available
at javax.crypto.KeyGenerator.<init>(Dash0A12275)
at javax.crypto.KeyGenerator.getInstance(DashoA12275)
at SecurityTest.main(SecurityTest.java:10)

What I am doing wrong

Thanks in advance

Uwe
0
Reply Uwe 5/25/2005 7:11:28 AM 

Have you installed and registered the JCE provider?

Bye
  Giovanni


Uwe Peuker wrote:
> Hi to all,
>
> I have checked out the following code from the Sun site:
>
> import javax.crypto.KeyGenerator;
> import javax.crypto.Mac;
> import javax.crypto.SecretKey;
>
> public class SecurityTest {
>     public static void main(String[] args) throws Exception {
>         String name = "HmacMD5";
>         // Generate secret key for HMAC-MD5
>         SecretKey sk = null;
>         KeyGenerator kg = KeyGenerator.getInstance(name);
>         sk = kg.generateKey();
>         // Get instance of Mac object implementing HMAC-MD5, and
>         // initialize it with the above secret key
>         Mac mac = Mac.getInstance(name);
>         mac.init(sk);
>         byte[] result = mac.doFinal("Hi There".getBytes());
>     }
> }
>
> It works fine using java 1.4.2.
>
> Updating to 1.5.0_03 I get the following Exception:
> Exception in thread "main" java.security.NoSuchAlgorithmException: HmacMD5
> KeyGenerator not available
> at javax.crypto.KeyGenerator.<init>(Dash0A12275)
> at javax.crypto.KeyGenerator.getInstance(DashoA12275)
> at SecurityTest.main(SecurityTest.java:10)
> 
> What I am doing wrong
> 
> Thanks in advance
> 
> Uwe
0
Reply marossi51 5/26/2005 9:57:06 AM 


I havn't done this on any installation. In my opinion it will be done using 
the default installation procedure for java.

In subdirectory "security" file "java.security" I found the items:

security.provider.1=sun.security.provider.Sun
security.provider.2=sun.security.rsa.SunRsaSign
security.provider.3=com.sun.net.ssl.internal.sslProvider
security.provider.4=com.sun.crypto.provider.SunJCE
security.provider.5=sun.security.jgss.SunProvider
security.provider.6=com.sun.security.sasl.Provider

In subdirectory "ext" I have at least the File:
sunjce_provider.jar

What else is to do ?

Thanks
Uwe

<marossi51@infinito.it> schrieb im Newsbeitrag 
news:1117101425.998891.77450@g44g2000cwa.googlegroups.com...
> Have you installed and registered the JCE provider?
>
> Bye
>  Giovanni
>
>
> Uwe Peuker wrote:
>> Hi to all,
>>
>> I have checked out the following code from the Sun site:
>>
>> import javax.crypto.KeyGenerator;
>> import javax.crypto.Mac;
>> import javax.crypto.SecretKey;
>>
>> public class SecurityTest {
>>     public static void main(String[] args) throws Exception {
>>         String name = "HmacMD5";
>>         // Generate secret key for HMAC-MD5
>>         SecretKey sk = null;
>>         KeyGenerator kg = KeyGenerator.getInstance(name);
>>         sk = kg.generateKey();
>>         // Get instance of Mac object implementing HMAC-MD5, and
>>         // initialize it with the above secret key
>>         Mac mac = Mac.getInstance(name);
>>         mac.init(sk);
>>         byte[] result = mac.doFinal("Hi There".getBytes());
>>     }
>> }
>>
>> It works fine using java 1.4.2.
>>
>> Updating to 1.5.0_03 I get the following Exception:
>> Exception in thread "main" java.security.NoSuchAlgorithmException: 
>> HmacMD5
>> KeyGenerator not available
>> at javax.crypto.KeyGenerator.<init>(Dash0A12275)
>> at javax.crypto.KeyGenerator.getInstance(DashoA12275)
>> at SecurityTest.main(SecurityTest.java:10)
>>
>> What I am doing wrong
>>
>> Thanks in advance
>>
>> Uwe
>
0
Reply Uwe 5/26/2005 10:20:12 AM 

I did a standard install of jdk 1.5.0_03 and I can run your example
without any problem.
I'm sorry but I don't know what's wrong.

Bye
  Giovanni


Uwe Peuker wrote:
> I havn't done this on any installation. In my opinion it will be done using
> the default installation procedure for java.
>
> In subdirectory "security" file "java.security" I found the items:
>
> security.provider.1=sun.security.provider.Sun
> security.provider.2=sun.security.rsa.SunRsaSign
> security.provider.3=com.sun.net.ssl.internal.sslProvider
> security.provider.4=com.sun.crypto.provider.SunJCE
> security.provider.5=sun.security.jgss.SunProvider
> security.provider.6=com.sun.security.sasl.Provider
>
> In subdirectory "ext" I have at least the File:
> sunjce_provider.jar
>
> What else is to do ?
>
> Thanks
> Uwe
>
> <marossi51@infinito.it> schrieb im Newsbeitrag
> news:1117101425.998891.77450@g44g2000cwa.googlegroups.com...
> > Have you installed and registered the JCE provider?
> >
> > Bye
> >  Giovanni
> >
> >
> > Uwe Peuker wrote:
> >> Hi to all,
> >>
> >> I have checked out the following code from the Sun site:
> >>
> >> import javax.crypto.KeyGenerator;
> >> import javax.crypto.Mac;
> >> import javax.crypto.SecretKey;
> >>
> >> public class SecurityTest {
> >>     public static void main(String[] args) throws Exception {
> >>         String name = "HmacMD5";
> >>         // Generate secret key for HMAC-MD5
> >>         SecretKey sk = null;
> >>         KeyGenerator kg = KeyGenerator.getInstance(name);
> >>         sk = kg.generateKey();
> >>         // Get instance of Mac object implementing HMAC-MD5, and
> >>         // initialize it with the above secret key
> >>         Mac mac = Mac.getInstance(name);
> >>         mac.init(sk);
> >>         byte[] result = mac.doFinal("Hi There".getBytes());
> >>     }
> >> }
> >>
> >> It works fine using java 1.4.2.
> >>
> >> Updating to 1.5.0_03 I get the following Exception:
> >> Exception in thread "main" java.security.NoSuchAlgorithmException:
> >> HmacMD5
> >> KeyGenerator not available
> >> at javax.crypto.KeyGenerator.<init>(Dash0A12275)
> >> at javax.crypto.KeyGenerator.getInstance(DashoA12275)
> >> at SecurityTest.main(SecurityTest.java:10)
> >>
> >> What I am doing wrong
> >>
> >> Thanks in advance
> >>
> >> Uwe
> >
0
Reply Gio 5/26/2005 3:04:11 PM 

The  problem seems to be disappeared. I thing it has been a bug in the 
milestones of the Eclipse IDE 3.1. Using the the RC1 of Eclipse 3.1 I can't 
verify the behaviour.

Thanks
Uwe

"Gio" <marossi51@infinito.it> schrieb im Newsbeitrag 
news:1117119851.469721.70460@o13g2000cwo.googlegroups.com...
>I did a standard install of jdk 1.5.0_03 and I can run your example
> without any problem.
> I'm sorry but I don't know what's wrong.
>
> Bye
>  Giovanni
>
>
> Uwe Peuker wrote:
>> I havn't done this on any installation. In my opinion it will be done 
>> using
>> the default installation procedure for java.
>>
>> In subdirectory "security" file "java.security" I found the items:
>>
>> security.provider.1=sun.security.provider.Sun
>> security.provider.2=sun.security.rsa.SunRsaSign
>> security.provider.3=com.sun.net.ssl.internal.sslProvider
>> security.provider.4=com.sun.crypto.provider.SunJCE
>> security.provider.5=sun.security.jgss.SunProvider
>> security.provider.6=com.sun.security.sasl.Provider
>>
>> In subdirectory "ext" I have at least the File:
>> sunjce_provider.jar
>>
>> What else is to do ?
>>
>> Thanks
>> Uwe
>>
>> <marossi51@infinito.it> schrieb im Newsbeitrag
>> news:1117101425.998891.77450@g44g2000cwa.googlegroups.com...
>> > Have you installed and registered the JCE provider?
>> >
>> > Bye
>> >  Giovanni
>> >
>> >
>> > Uwe Peuker wrote:
>> >> Hi to all,
>> >>
>> >> I have checked out the following code from the Sun site:
>> >>
>> >> import javax.crypto.KeyGenerator;
>> >> import javax.crypto.Mac;
>> >> import javax.crypto.SecretKey;
>> >>
>> >> public class SecurityTest {
>> >>     public static void main(String[] args) throws Exception {
>> >>         String name = "HmacMD5";
>> >>         // Generate secret key for HMAC-MD5
>> >>         SecretKey sk = null;
>> >>         KeyGenerator kg = KeyGenerator.getInstance(name);
>> >>         sk = kg.generateKey();
>> >>         // Get instance of Mac object implementing HMAC-MD5, and
>> >>         // initialize it with the above secret key
>> >>         Mac mac = Mac.getInstance(name);
>> >>         mac.init(sk);
>> >>         byte[] result = mac.doFinal("Hi There".getBytes());
>> >>     }
>> >> }
>> >>
>> >> It works fine using java 1.4.2.
>> >>
>> >> Updating to 1.5.0_03 I get the following Exception:
>> >> Exception in thread "main" java.security.NoSuchAlgorithmException:
>> >> HmacMD5
>> >> KeyGenerator not available
>> >> at javax.crypto.KeyGenerator.<init>(Dash0A12275)
>> >> at javax.crypto.KeyGenerator.getInstance(DashoA12275)
>> >> at SecurityTest.main(SecurityTest.java:10)
>> >>
>> >> What I am doing wrong
>> >>
>> >> Thanks in advance
>> >>
>> >> Uwe
>> >
>
0
Reply Uwe 5/30/2005 6:00:12 AM 

On 30-5-2005 8:00, Uwe Peuker wrote:

> The  problem seems to be disappeared. I thing it has been a bug in the 
> milestones of the Eclipse IDE 3.1. Using the the RC1 of Eclipse 3.1 I can't 
> verify the behaviour.
> 
> Thanks
> Uwe
> 
> "Gio" <marossi51@infinito.it> schrieb im Newsbeitrag 
> news:1117119851.469721.70460@o13g2000cwo.googlegroups.com...
> 
>>I did a standard install of jdk 1.5.0_03 and I can run your example
>>without any problem.
>>I'm sorry but I don't know what's wrong.
>>
>>Bye
>> Giovanni
>>
>>
>>Uwe Peuker wrote:
>>
>>>I havn't done this on any installation. In my opinion it will be done 
>>>using
>>>the default installation procedure for java.
>>>
>>>In subdirectory "security" file "java.security" I found the items:
>>>
>>>security.provider.1=sun.security.provider.Sun
>>>security.provider.2=sun.security.rsa.SunRsaSign
>>>security.provider.3=com.sun.net.ssl.internal.sslProvider
>>>security.provider.4=com.sun.crypto.provider.SunJCE
>>>security.provider.5=sun.security.jgss.SunProvider
>>>security.provider.6=com.sun.security.sasl.Provider
>>>
>>>In subdirectory "ext" I have at least the File:
>>>sunjce_provider.jar
>>>
>>>What else is to do ?
>>>
>>>Thanks
>>>Uwe
>>>
>>><marossi51@infinito.it> schrieb im Newsbeitrag
>>>news:1117101425.998891.77450@g44g2000cwa.googlegroups.com...
>>>
>>>>Have you installed and registered the JCE provider?
>>>>
>>>>Bye
>>>> Giovanni
>>>>
>>>>
>>>>Uwe Peuker wrote:
>>>>
>>>>>Hi to all,
>>>>>
>>>>>I have checked out the following code from the Sun site:
>>>>>
>>>>>import javax.crypto.KeyGenerator;
>>>>>import javax.crypto.Mac;
>>>>>import javax.crypto.SecretKey;
>>>>>
>>>>>public class SecurityTest {
>>>>>    public static void main(String[] args) throws Exception {
>>>>>        String name = "HmacMD5";
>>>>>        // Generate secret key for HMAC-MD5
>>>>>        SecretKey sk = null;
>>>>>        KeyGenerator kg = KeyGenerator.getInstance(name);
>>>>>        sk = kg.generateKey();
>>>>>        // Get instance of Mac object implementing HMAC-MD5, and
>>>>>        // initialize it with the above secret key
>>>>>        Mac mac = Mac.getInstance(name);
>>>>>        mac.init(sk);
>>>>>        byte[] result = mac.doFinal("Hi There".getBytes());
>>>>>    }
>>>>>}
>>>>>
>>>>>It works fine using java 1.4.2.
>>>>>
>>>>>Updating to 1.5.0_03 I get the following Exception:
>>>>>Exception in thread "main" java.security.NoSuchAlgorithmException:
>>>>>HmacMD5
>>>>>KeyGenerator not available
>>>>>at javax.crypto.KeyGenerator.<init>(Dash0A12275)
>>>>>at javax.crypto.KeyGenerator.getInstance(DashoA12275)
>>>>>at SecurityTest.main(SecurityTest.java:10)
>>>>>
>>>>>What I am doing wrong
>>>>>
>>>>>Thanks in advance
>>>>>
>>>>>Uwe
>>>>
> 
> 
It's probably caused by the way how/when Eclipse passes the 
-Xbootclasspath parameter to the java executable that's being launched.

Don't know for 3.1RC1, but for older releases it depends on the setting 
"Use system default libraries" in the JRE configuration (Window -> 
Preferences -> Java -> Installed JREs -> (select JRE) -> Edit)

When "Use system default libraries" is unchecked (off), Eclipse adds the 
-Xbootclasspath parameter --with all the libs in the list-- to the java 
executable. If the list doesn't include the crypto libraries, it results 
in the NoSuchAlgorithmException.
Otherwise, when "Use system default libraries" is checked, Eclipse 
doesn't add -Xbootclasspath, so it allows the java executable to 
discover its own boot classpath including the crypto libraries.
-- 
Regards,

Roland de Ruiter
   ___      ___
  /__/ w_/ /__/
/  \ /_/ /  \
0
Reply Roland 5/30/2005 12:03:40 PM 

Great, that was the problem. Checking the parameter the problem disappears 
in older eclipse versions too.

Thanks
Uwe

"Roland" <roland@phony.biz> schrieb im Newsbeitrag 
news:429b0100$0$158$e4fe514c@news.xs4all.nl...
> On 30-5-2005 8:00, Uwe Peuker wrote:
>
> It's probably caused by the way how/when Eclipse passes 
> the -Xbootclasspath parameter to the java executable that's being 
> launched.
>
> Don't know for 3.1RC1, but for older releases it depends on the setting 
> "Use system default libraries" in the JRE configuration (Window -> 
> Preferences -> Java -> Installed JREs -> (select JRE) -> Edit)
>
> When "Use system default libraries" is unchecked (off), Eclipse adds 
> the -Xbootclasspath parameter --with all the libs in the list-- to the 
> java executable. If the list doesn't include the crypto libraries, it 
> results in the NoSuchAlgorithmException.
> Otherwise, when "Use system default libraries" is checked, Eclipse doesn't 
> add -Xbootclasspath, so it allows the java executable to discover its own 
> boot classpath including the crypto libraries.
> -- 
> Regards,
>
> Roland de Ruiter
>   ___      ___
>  /__/ w_/ /__/
> /  \ /_/ /  \
0
Reply Uwe 5/31/2005 6:41:08 AM
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