Acrobat is not validating digital signature

Hi Everybody...
I have generated a pdf file which includes digital signatures.
But the acrobat is not validating the digital signature. But if
we open this file in PDF-xchange viewer, it shows that the
signatures are valid. Acrobat generates the following error...
Error during signature verification.
Signature contains incorrect, unrecognized, corrupted or
suspicious data.
Support Information: SigDict /Contents illegal data
What may be the problem?

Thank you Bernd for your kind and simple reply
I am uploading my file with my certificate which i am using for my digital
signatures. Please have a deep look at contents entry. Use ASNVIEWER or
decoder etc......
Thanks again and Best Regards

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Acrobat is not validating digital signature

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