Bug#1006579:
FWIW upstream just made a release that claims to fix this bug.
Bug#1006579: yapet: FTBFS with OpenSSL 3.0
Source: yapet Version: 2.5-1 Severity: important Tags: bookworm sid User: pkg-openssl-de...@lists.alioth.debian.org Usertags: ftbfs-3.0 Your package is failing to build using OpenSSL 3.0 with the following error: | make[5]: Entering directory '/<>/tests/crypt' | FAIL: key448 | PASS: key256 | FAIL