Release Version 3.0.0

[pabuhler]

Note: This is task definition is a work in progress

This is a high level issue to track architectural and coding effort to create and release the next major version of libSRTP.

Goal

Provide a cross platform C99 conformant SRTP library with a safe and flexible API.
Fix and close all issues that have been postponed due to ABI and behavioral restrictions.
Update build system and tools to be inline with current conventions.

Plan

Each PR should only change a single piece of functionality to help simplify reviews and traceability. Where possible test should not be refactored in the same commit as major code changes.

Tasks

• Create 2.x branch then prepare main for 3.x development
• Look into CI test between version
• Consider library name, currently libsrtp2.x, maybe libsrtp3.x? Check "so" name has correct version
• Clean out unused files from repo, there are a few old scripts that probably do not belong
• Use consistent types through out code base #671
• Refresh and simplify config API
• Review public API #672
• No consistency when use some srtp_* functions. #220
• provide an new version of protect function that does not corrupt memory #322
• Please add a "non inplace" protect and unprotect API #569
• Handling Master Key Lifetime #588
• Consider setting openssl as default crypto backend #579
• Remove srtp_crypto_policy_set_aes_gcm_128_8_XXXX functions from API #441
• srtp_create fails if setting up RTP encryption with AES-128-GCM and not specifying RTCP encryption #642
• Update fuzzer with new api

[paulej]

Another item to consider is removing the legacy srtp_kdf() calls and types / definitions that do not exist in OpenSSL.

[fquiers]

Could we also consider any improvement related to this ticket please:
#642
Thank you

[pabuhler]

Could we also consider any improvement related to this ticket please: #642 Thank you

Will try to close all issues before 3.0, and this should go away by it's self when cleaning up config api but will make sure of it!