Is it possible to use a global lock in the OpenSSL engine on each mod_ssl call?

Dr Paul Dale pauli at
Wed Nov 10 22:26:03 UTC 2021

OpenSSL doesn't have a global lock.
You could implement a single lock in the engine.  Grab it immediately on 
entry and release just before exit.


On 11/11/21 8:24 am, Shariful Alam wrote:
> Hello,
> I understand this is a weird question. I have an OpenSSL engine only 
> for RSA. And I have apache installed that uses this OpenSSL engine for 
> the HTTPS connection.
> I was wondering if it is possible to use a global lock with the 
> OpenSSL on mod_ssl call? So that, only one mod_ssl thread cal call the 
> engine at a time?
> Thanks,
> Shariful

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