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add note about timing analysis

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pablof7z 2024-10-20 01:04:11 +01:00
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@ -45,7 +45,7 @@ A sender publishes a series of `kind:2444` or `kind:20444` where the `payload` i
Event `kind:2444` has the exact same format as the `kind:20444`, the only difference being that it's not ephemeral, so it can be used to route events that are expected to take longer to route. `kind:2444` events SHOULD include an [[NIP-40]] `expiration` tag. Event `kind:2444` has the exact same format as the `kind:20444`, the only difference being that it's not ephemeral, so it can be used to route events that are expected to take longer to route. `kind:2444` events SHOULD include an [[NIP-40]] `expiration` tag.
Routing pubkeys MUST look at the `created_at` of the event they need to publish and wait until at least that time before publishing. Routing pubkeys MUST look at the `created_at` of the event they need to publish and wait until at least that time before publishing. Using future `created_at`s allows the sender to increase their privacy by preventing timing analysis by mixing different time delays at each hop.
When a routing pubkey receives a routing request event it should decrypt the content, redeem the cashu and publish the event in the `event` field. If the cashu cannot be redeemed the routing pubkey MUST NOT publish the event. This is useful as a way to **cancel** a routing event where the sender uses a future `created_at` timestamps and chooses to cancel the publication. When a routing pubkey receives a routing request event it should decrypt the content, redeem the cashu and publish the event in the `event` field. If the cashu cannot be redeemed the routing pubkey MUST NOT publish the event. This is useful as a way to **cancel** a routing event where the sender uses a future `created_at` timestamps and chooses to cancel the publication.
@ -139,3 +139,4 @@ function assemble_onion_route(final_event, path) {
} }
} }
``` ```