OpenSSL Upgrade to 1.1.1c from very old version

[Dmitry Belyavsky]

Hello,

On Thu, Jul 11, 2019 at 12:58 PM Umamaheswari Nagarajan <
numamaheswari at pulsesecure.net> wrote:

> Hi,
>
>
>
> In couple of modules in our product, we use very older version of OpenSSL
> (0.97e) which are statically linked.
>
>
>
> We wanted to upgrade it to the latest version (1.1.1c) and also remove the
> static linking.
>
>
>
> Query- Can we upgrade from OpenSSL 0.97e to OpenSSL 1.1.1c directly or we
> have to move to some other lower version first and then proceed with 1.1.1c
>
>
>
> Please advise us.
>
>
>
99,9% you'll have to fix your openssl calls. Most of data structures became
opaque and you'll need to fix access to separate fields if any.
If you used algorithm-specific methods instead of EVP, you probably have to
rewrite this calls.
It's only a part of the changes happened since 0.9.7.

-- 
SY, Dmitry Belyavsky
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