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gossip: deprecate Tor v2 onion services (#940)

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Advise to not include/ignore them in announcements
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Antoine Poinsot 2021-12-06 09:18:58 +01:00 committed by GitHub
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07-routing-gossip.md
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@ -276,10 +276,7 @@ The following `address descriptor` types are defined:
* `1`: ipv4; data = `[4:ipv4_addr][2:port]` (length 6)
* `2`: ipv6; data = `[16:ipv6_addr][2:port]` (length 18)
* `3`: Tor v2 onion service; data = `[10:onion_addr][2:port]` (length 12)
* version 2 onion service addresses; Encodes an 80-bit, truncated `SHA-1`
hash of a 1024-bit `RSA` public key for the onion service (a.k.a. Tor
hidden service).
* `3`: Deprecated (length 12). Used to contain Tor v2 onion services.
* `4`: Tor v3 onion service; data = `[35:onion_addr][2:port]` (length 37)
* version 3 ([prop224](https://gitweb.torproject.org/torspec.git/tree/proposals/224-rend-spec-ng.txt))
onion service addresses; Encodes:
@ -312,6 +309,7 @@ The origin node:
- MUST set `features` according to [BOLT #9](09-features.md#assigned-features-flags)
- SHOULD set `flen` to the minimum length required to hold the `features`
bits it sets.
- SHOULD not announce a Tor v2 onion service.
The receiving node:
- if `node_id` is NOT a valid compressed public key:
@ -345,6 +343,7 @@ any future fields appended to the end):
- MAY choose NOT to queue messages longer than the minimum expected length.
- MAY use `rgb_color` AND `alias` to reference nodes in interfaces.
- SHOULD insinuate their self-signed origins.
- SHOULD ignore Tor v2 onion services.
### Rationale