Deprecated OpenSSL functions

[hdu-sdlzx]

Describe the feature

OpenSSL 3.0 deprecates some APIs used by aws-sdk-cpp, e.g. EVP_MD_CTX_md.
As a result, aws-sdk-cpp failed to build with OpenSSL configured with "no-deprecated".

build log:
09:22:02 /hdd/jenkins/workspace/aws/crt/aws-crt-cpp/crt/s2n/crypto/s2n_hash.c:205:22: error: implicit declaration of function ‘EVP_MD_CTX_md’; did you mean ‘EVP_MD_CTX_dup’? [-Wimplicit-function-declaration]
09:22:02 205 | POSIX_ENSURE_REF(EVP_MD_CTX_md(state->digest.high_level.evp.ctx));
09:22:02 | ^~~~~~~~~~~~~

Use Case

We have a program built with latest OpenSSL LTS version configured with "no-deprecated", and we want to integrate aws-sdk-cpp into it.

Proposed Solution

Update OpenSSL APIs

Other Information

No response

Acknowledgements

• I may be able to implement this feature request
• This feature might incur a breaking change

[sbiscigl]

That is actually coming from the s2n project, which we rely on a submodule. I see you have already opened a issue with them

aws/s2n-tls#5562

If the make any updates, we'll be happy to pick it up in a updated version

[DmitriyMusatkin]

aws-c-cal is unlikely to compile with no-deprecated either. https://github.com/awslabs/aws-c-cal/blob/main/source/unix/opensslcrypto_ecc.c#L10