logos-messaging/nim-chat-poc
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feat(chat): consume RLN membership spec wire format on chat-side gifter

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Updates the chat-side gifter caller in waku_client.nim to the new
MembershipAllocationRequest / MembershipAllocationSuccess types:
* identity commitment is sent as bytes (not hex string)
* authentication_type='eth-allowlist' is set explicitly when signing
* rate limit is passed as proto3 optional
* configAccountId is read off success.configAccountId (the LEZ extension)

Bumps vendor/nwaku and vendor/logos-lez-rln to pull in the spec-aligned
wire format on both the gifter server and the auto-registering mix-node
client paths.
This commit is contained in:
Arseniy Klempner 2026-05-13 16:10:56 -06:00
parent 34d570e3ff
commit ce127b566a
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GPG Key ID: 51653F18863BD24B
3 changed files with 24 additions and 15 deletions
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35
src/chat/delivery/waku_client.nim
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@ -372,39 +372,48 @@ proc start*(client: WakuClient) {.async.} =
mix_rln_interface.membershipKeyGen().valueOr:
error "Failed to generate RLN identity", error = $error
quit(QuitFailure)
var idCommitmentHex = ""
for b in idCred.idCommitment:
idCommitmentHex.add(toHex(int(b), 2))
let idCommitmentBytes = @(idCred.idCommitment)
info "Registering via RLN gifter",
gifterPeer = client.cfg.gifterNodeAddr,
idCommitment = idCommitmentHex[0 .. 15] & "..."
identityCommitmentLen = idCommitmentBytes.len
var authPayload = none(seq[byte])
var authType: seq[byte]
var authPayload: seq[byte]
if client.cfg.gifterAuthKey.len > 0:
let seckey = eth_keys.PrivateKey.fromHex(client.cfg.gifterAuthKey).valueOr:
error "Failed to parse gifter auth key", error = $error
quit(QuitFailure)
let sig = seckey.sign(rln_gifter_protocol.eip191Message(idCommitmentHex))
authPayload = some(@(sig.toRaw()))
let sig = seckey.sign(rln_gifter_protocol.eip191Message(idCommitmentBytes))
authPayload = @(sig.toRaw())
for c in rln_gifter_protocol.EthAllowlistAuthType:
authType.add(byte(c))
info "Signing gifter request with EIP-191 auth key",
signer = seckey.toPublicKey().to(eth_addresses.Address).to0xHex()
let regRes = await gifterClient.requestMembership(
idCommitmentHex, uint64(lezGm.userMessageLimit), gifterPeer, authPayload
idCommitmentBytes,
some(uint64(lezGm.userMessageLimit)),
gifterPeer,
authType,
authPayload,
)
if regRes.isErr:
error "Failed to register via gifter", error = regRes.error
quit(QuitFailure)
let regResult = regRes.get()
let success = regRes.get()
let configAccountId = success.configAccountId.valueOr:
error "Gifter response missing configAccountId extension"
quit(QuitFailure)
lezGm.credentials = some(idCred)
lezGm.membershipIndex = some(onchain_group_manager.MembershipIndex(regResult.leafIndex))
mix_lez_client.setRlnConfig(regResult.configAccountId, regResult.leafIndex.int)
lezGm.membershipIndex = some(onchain_group_manager.MembershipIndex(success.leafIndex))
mix_lez_client.setRlnConfig(configAccountId, success.leafIndex.int)
info "Registered via RLN gifter",
leafIndex = regResult.leafIndex,
configAccount = regResult.configAccountId
leafIndex = success.leafIndex,
configAccount = configAccountId
asyncSpawn taskKeepAlive(client)

2
vendor/logos-lez-rln vendored

@ -1 +1 @@
Subproject commit 5f893fd4b99411ee880b99f3953b0ea32b765a9d
Subproject commit 99ecf6b6a355e13bd857501009f98f5842057249

2
vendor/nwaku vendored

@ -1 +1 @@
Subproject commit 41d73f92eb4e7810f830d18e8634d72759472936
Subproject commit ba1ce0280fc9dc3e84fc630d4680302e942942d0