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Re: [cross-project-issues-dev] To be able to install newly signed plug-in on Helios and Indigo

If you really cannot move up to at least the Juno release then the 2 following options area available:

1) remove the signatures from the jars and place them on your own update sight to install from ... or
2) patch equinox (org.eclipse.osgi) with


From:        Grégoire Dupé <gdupe@xxxxxxxxxxxxxxxx>
To:        "'Cross project issues'" <cross-project-issues-dev@xxxxxxxxxxx>
Date:        04/20/2015 05:04 AM
Subject:        [cross-project-issues-dev] To be able to install newly signed        plug-in on Helios and Indigo
Sent by:        cross-project-issues-dev-bounces@xxxxxxxxxxx

We are not able to install newly signed plug-ins on Helios, and Indigo. We get the following error (during the installation of a signed plug-in):
Caused by: No algorithm found for 2.16.840.
                at org.eclipse.osgi.internal.signedcontent.PKCS7Processor.findDigest(
                at org.eclipse.osgi.internal.signedcontent.PKCS7Processor.processSignerInfos(
                at org.eclipse.osgi.internal.signedcontent.PKCS7Processor.<init>(
                at org.eclipse.osgi.internal.signedcontent.SignatureBlockProcessor.processSigner(
                at org.eclipse.osgi.internal.signedcontent.SignatureBlockProcessor.process(
                at org.eclipse.osgi.internal.signedcontent.SignedBundleFile.setBundleFile(
                at org.eclipse.osgi.internal.signedcontent.SignedBundleHook.getSignedContent(
This error happens because the class ‘PKCS7Processor’ embedded in Helios and Indigo isn’t able to deal with SHA-256. SHA-256 is used since Java-1.7 to sign [1]. I assume that the signing service has been updated to Java-1.7.
From the release train point of view this seems to be a good thing. But my company integrates EMF Facet and MoDisco into its own product and some of our clients are still using Helios and Java-1.5!
Does anybody have any advice to be able to install newly signed plug-in on Helios and Indigo?
Grégoire Dupé_______________________________________________
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