verifying detached signature with BC

Question

How can I verify a detached signature (CMS/pkcs #7 signature) using the BouncyCastle provider in Java?

Currently, my code below throws an exception with the message

Answer 1

You can find the answer to this post here. This happening because how bouncy castle/open ssl treats the S/MIME message when S/MIME headers are not present.Solution is to add S/MIME headers to the message before signimg