Using javamail 1.4
Jdk 1.5
BouncyCastle 1.35
=================


Hi
I am following the combining sign with encryption code:

MimeMessage msg = (MimeMessage)cGenerator.submitTask(lineByteArray);
The msg object is not null, as I can see some part of it
-----------------------------------------------------------
===> msg.writeTo(System.out);
From: ctg@cme.epiphany.com
To: aodrisco01@epiphany.com
Message-ID: 20070110032519.1148042987.0.-1.1522@@cme.epiphany.com
Subject: French content
MIME-Version: 1.0
Content-Type: application/pkcs7-mime; name="smime.p7m"; smime-type=enveloped-data
Content-Transfer-Encoding: 7bit
---------------------------------------------------------------
when I do the following, I get the null pointer.
Could you pl guide me how to debug this part.


SMIMEEnveloped enveloped = new SMIMEEnveloped(msg);


Time: 5.516
There was 1 error:
1) testSmime(com.infor.jobfile.TestCTGSecurity)java.l ang.NullPointerException
    at org.bouncycastle.asn1.cms.ContentInfo.getInstance( Unknown Source)
    at org.bouncycastle.cms.CMSUtils.readContentInfo(Unkn own Source)
    at org.bouncycastle.cms.CMSUtils.readContentInfo(Unkn own Source)
    at org.bouncycastle.cms.CMSEnvelopedData.<init>(Unkno wn Source)
    at org.bouncycastle.mail.smime.SMIMEEnveloped.<init>( Unknown Source)
    at com.infor.jobfile.TestCTGSecurity.testSmime(TestCT GSecurity.java:155)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Nativ e Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(Native MethodAccessorImpl.java:39)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(De legatingMethodAccessorImpl.java:25)
    at com.infor.jobfile.TestCTGSecurity.main(TestCTGSecu rity.java:207)

Some more info:

                  System.out.println("mbp.getContent()=" + mbp.getContent());
                  msg.setContent(mbp.getContent(), mbp.getContentType());
                  msg.saveChanges();
                  System.out.println("msg.getContent()=" + msg.getContent());
                  System.out.println("msg.getContentType()=" + msg.getContentType());


=====
OUTPUT
mbp.getContent()=org.bouncycastle.mail.smime.SMIME EnvelopedGenerator$ContentEncryptor@1938039
msg.getContent()=org.bouncycastle.mail.smime.SMIME EnvelopedGenerator$ContentEncryptor@1938039
msg.getContentType()=application/pkcs7-mime; name="smime.p7m"; smime-type=enveloped-data

But when I inspect the msg object, the content and contentstream attributes are always null.
E

An enveloped message will normally have a content transfer encoding of either base64 or binary. It is not possible to transfer one correctly with an encoding of 7bit (the data is binary).

I'm guessing that the data is really base64 but that the message has the wrong content-transfer-encoding. Try correcting the encoding to base64 and see if things behave differently.

Regards,

David

Hi David:
Changing Content-Transfer-Encoding to "base64" or "binary" didn't work.

In the first run, I printed the message just to make sure that the
encoding is binary/base64
----------------------------

     [java] From: "Eric H. Echidna" <eric@bouncycastle.org>
     [java] at javax.mail.internet.MimeMessage.writeTo(MimeMessag e.java:1659
)
     [java] To: example@bouncycastle.org
     [java] at chapter9.EnvelopedSignedMailExample.main(Unknown Source)
     [java] Message-ID: <16316379.31168886611156.JavaMail.rkaushik@catorka ushik>

     [java] Subject: example signed and enveloped message
     [java] MIME-Version: 1.0
     [java] Content-Type: application/pkcs7-mime; name="smime.p7m"; smime-type=e
nveloped-data
     [java] Content-Transfer-Encoding: base64

     [java] Java Result: 1

BUILD SUCCESSFUL
Total time: 7 seconds

Second Run: you still get the NullPointerException


C:\project1\beg-crypto-examples>ant run
Buildfile: build.xml

build:
    [javac] Compiling 1 source file to C:\project1\beg-crypto-examples\bin

run:
     [java] Exception in thread "main" java.lang.NullPointerException
     [java] at org.bouncycastle.asn1.cms.ContentInfo.getInstance( Unknown Sou
rce)
     [java] at org.bouncycastle.cms.CMSUtils.readContentInfo(Unkn own Source)

     [java] at org.bouncycastle.cms.CMSUtils.readContentInfo(Unkn own Source)

     [java] at org.bouncycastle.cms.CMSEnvelopedData.<init>(Unkno wn Source)
     [java] at org.bouncycastle.mail.smime.SMIMEEnveloped.<init>( Unknown Sou
rce)
     [java] at chapter9.EnvelopedSignedMailExample.main(Unknown Source)
     [java] Java Result: 1

If you can send me the message I'll take a look at it.

It really does sound like the message body is invalid though.

Regards,

David dgh@bund.com.au