Load and unload of engines at runtime

[Mahendra SP]

Hi All,

We have crypto engines for offloading operations like RSA, digests and
ciphers, hmac etc. We are looking at a way to load and unload engines at
run time. This is needed as we need to use the engine when needed for
crypto operations. Else we plan to use openssl for the same.

We tried,
-> unregister calls like ENGINE_unregister_XXX calls to force redirection
to openssl
-> Again, ENGINE_register_XXX to redirect to engine.

However, the above methods are not helping. Please suggest a way to achieve
the above requirement.

Thanks
Mahendra
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