Hello Jean-Francois! Thanks for the help with the debugging. As can be seen by https://gitlab.torproject.org/tpo/core/tor/-/issues/40210#note_2717474 we suspect that something is wrong with the way that Tor computes onion service checksums or with the way that your OpenSSL computes SHA3 hashes.
I have made a small debug branch that prints some useful debugging info: https://gitlab.torproject.org/asn/tor/-/commits/40210-debug Please try reproducing with that branch and check your tor logs for lines that look like this and post them to this ticket: """ Dec 02 14:06:21.429 [warn] checksum data: 2E6F6E696F6E20636865636B73756DD75A980182B10AB7D54BFED3C964073A0EE172F3DAA62325AF021A68F707511A03 Dec 02 14:06:21.429 [warn] debug sha3: 42538602949F370AA331D2C07A1EE7FF26CAAC9CC676288F94B82EB2188B8465 """ Depending on the results we will probably need to do some more debugging to find the real issue. Thanks a lot! :)
