Problem:

A common pattern is:

GUARD(s2n_stuffer_skip_write(stuffer, bytes_to_write));
uint8_t* ptr = suffer->blob.data + stuffer->write_cursor - bytes_to_write;

which could be simplified.

Solution:

*ptr could be an *out parameter to s2n_stuffer_skip_write

• Does this change what S2N sends over the wire? No.
• Does this change any public APIs? No.

Describe the problem you are trying to solve.
Adopting Flecs would be made easier if prebuilt binaries were available for the CI platforms.

Describe the solution you'd like
A configuration that makes binaries available for a CI that supports it.

Introduce a decode flag that produces a vertically flipped image, this would only be valid in non-progressive mode.

pDescription may be null and causes a hard-fault when observers are notified of a resource update.
https://github.com/Lobaro/lobaro-coap/blob/b6b5ced0f7d013022c848d5f3da4ddb757339b6c/src/coap_interaction.c#L279

It's set to NULL when an null or empty string is passed in as a resource description on CoAP_CreateResource:
https://github.com/Lobaro/lobaro-coap/blob/d7a4c79ad2217f744ac9757d2b4b

Reference implementation in milagro-c
apache/incubator-milagro-crypto-c#47

For readability and maintenance the new BLS implementation can be made in Lua script with a very small computational overhead in Zenroom.
Implementaiton: src/bls192.c.in
Example usage: examples/example_bls_sss_ZZZ.c.in