Deprecated OpenSSL functions

[hdu-sdlzx]

Problem:

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 | ^~~~~~~~~~~~~

Need By Date:

N/A

Solution:

Update OpenSSL APIs, no visible change to s2n users.

Requirements / Acceptance Criteria:

What must a solution address in order to solve the problem? How do we know the solution is complete?

• RFC links: Links to relevant RFC(s)
• Related Issues: Link any relevant issues
• Will the Usage Guide or other documentation need to be updated?
• No
• Testing: How will this change be tested? Call out new integration tests, functional tests, or particularly interesting/important unit tests.
• Existing test cases should be enough to test this change.
  • Will this change trigger SAW changes? Changes to the state machine, the s2n_handshake_io code that controls state transitions, the DRBG, or the corking/uncorking logic could trigger SAW failures.
  • No
  • Should this change be fuzz tested? Will it handle untrusted input? Create a separate issue to track the fuzzing work.
  • No

Out of scope:

Is there anything the solution will intentionally NOT address?
No