e5a0bece6e doc: add OpenSSL removal to release-notes.md (fanquake)
397dbae070 ci: remove OpenSSL installation (fanquake)
a4eb839619 doc: remove OpenSSL from build instructions and licensing info (fanquake)
648b2e3c32 depends: remove OpenSSL package (fanquake)
8983ee3e6d build: remove OpenSSL detection and libs (fanquake)
b49b6b0f70 random: Remove remaining OpenSSL calls and locking infrastructure (fanquake)
4fcfcc294e random: stop retrieving random bytes from OpenSSL (fanquake)
5624ab0b4f random: stop feeding RNG output back into OpenSSL (fanquake)
Pull request description:
Now that #17165 has been merged, removing our remaining OpenSSL usage is possible.
That remaining usage was a call to [`RAND_bytes`](https://www.openssl.org/docs/manmaster/man3/RAND_bytes.html) during the ::SLOW path of [ProcRand](https://github.com/bitcoin/bitcoin/blob/master/src/random.cpp#L616). As well as feeding output from our RNG back into OpenSSL via [`RAND_add`](https://www.openssl.org/docs/manmaster/man3/RAND_add.html) during the ::SLOW and ::SLEEP paths.
Optimistically tagged for `0.20.0`. Needs discussion, potentially in an upcoming weekly meeting?
Closes#12530.
ACKs for top commit:
MarcoFalke:
ACK e5a0bece6e
laanwj:
ACK e5a0bece6e
Tree-SHA512: 02fce08ec91d20e0da51e9314eec53dcf8699cded02f0a005417d627520c20b826332cb42bdae132af283d4903aa3088a9f613f3aea915d655a51532a4d4796c