Hi all,

I am trying to sign X509 certificates, however not with the default
signature algorithm RSA_WITH_SHA256 with the oid "1.2.840.113549.1.1.11"
but with the RSASSA_PSS one with oid  "1.2.840.113549.1.1.10" for which as
far as I know there is not really a possibility currently. I saw the
related issue: https://github.com/pyca/cryptography/issues/2850 is still
open. I am doing this for backwards compatibility reasons but I have not
really found a way yet to circumvent the problem. Is it possible to use the
low level OpenSSL API functions directly? I succeeded in calling some
functions with "default_backend()._lib.xxx" but I have not found everything
I need.

Can somebody suggest a solution?

Many thanks,
Bence
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