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external nullifier info

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seugu
2026-01-06 14:44:11 +03:00
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1 changed files with 12 additions and 11 deletions
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vac/raw/multi-message_id-burn-rln.md
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@@ -16,7 +16,7 @@ that require a separate execution per `message_id`.
## Motivation ## Motivation
RLN is a decentralized rate-limiting mechanism designed for anonymous networks. RLN is a decentralized rate-limiting mechanism designed for anonymous networks.
In RLVv2, the latest version of the protocol, users can apply arbitrary rate limits In [RLNv2](./rln-v2.md), the latest version of the protocol, users can apply arbitrary rate limits
by defining a specific limit over the `message_id`. by defining a specific limit over the `message_id`.
However, this version does not support the simultaneous exercise However, this version does not support the simultaneous exercise
of multiple messaging rights under a single `message_id`. of multiple messaging rights under a single `message_id`.
@@ -87,7 +87,7 @@ The output `[y, internal_nullifier]` is calculated in the following way:
```js ```js
a_0 = identity_secret_hash; a_0 = identity_secret_hash;
a_1 = poseidonHash([a0, external_nullifier]); a_1 = poseidonHash([a0, external_nullifier, message_id]);
y = a_0 + x * a_1; y = a_0 + x * a_1;
@@ -135,15 +135,6 @@ Outputs
* `root` * `root`
* `internal_nullifiers []` * `internal_nullifiers []`
```js
{
identity_secret_hash: bigint,
external_nullifier: bigint,
x: bigint
}
```
The output `(root, y [], internal_nullifiers [])` is calculated in the following way: The output `(root, y [], internal_nullifiers [])` is calculated in the following way:
```js ```js
@@ -161,3 +152,13 @@ where 0 ≤ `i` ≤ `max_out`, `max_out` is a new parameter that is fixed for a
`max_out` is arranged the requirements of the application. `max_out` is arranged the requirements of the application.
To define this fixed number makes the circuit is flexiable with a single circuit that is maintable. To define this fixed number makes the circuit is flexiable with a single circuit that is maintable.
Since the user is free to burn arbitrary number of `message_id` at once up to `max_out`. Since the user is free to burn arbitrary number of `message_id` at once up to `max_out`.
Note that within a given epoch, the `external_nullifier` MUST be identical for all messages,
as it is computed deterministically from the epoch value and the `rln_identifier` as follows:
```js
external_nullifier = poseidonHash([epoch, rln_identifier]);
```