Files
nym/contracts/mixnet
Jędrzej Stuczyński d8c84cc4d6 feat: key rotation (#5777)
* wip

* wip: wrap node's sphinx key with a manager

* wip: choosing correct key for packet processing

* further propagation of key rotation information

* attaching key rotation information to reply surbs

* added basic key rotation information to mixnet contract

* wip: introducing cached queries for key rotation info from nym api

* unified nym-api contract cache refreshing

* finish packet decoding

* multi api client + retrieving rotation id

* rotating sphinx key files

* logic for migrating config file

* wip: putting new sphinx keys to self described endpoints

* processing loop of KeyRotationController

* fixed sphinx key loading

* rotating bloomfilters

* wired up KeyRotationController

* flushing bloomfilters to disk and loading

* most of nym-node changes

* post rebase fixes

* fixes due to backwards compatible hostkeys

* split http state.rs file

* dont use deprecated fields

* fixed backwards compatible deserialisation of host information

* split up node describe cache

* added a dedicated CacheRefresher listener to perform full refresh outside the set interval

* controlling announced sphinx keys within nym-api

* retrieving rotation id when pulling topology

* split nym-nodes http handlers

* v2 nym-api endpoints to retrieve nodes with additional metadata information

* bug fixes...

* additional bugfixes and guards against stuck epoch

* testnet manager: set first nym-api as the rewarder

* fixed host information deserialisation

* fixed panic during first key rotation

* post rebase fixes

* clippy

* more guards against stuck epochs

* added helper method to reset node's sphinx key

* instantiate mixnet contract with custom key rotation validity

* additional bugfixes and debugging nym-api deadlock

* passing shutdown to nym apis client

* remove dead test

* post rebasing fixes

* missing MixnetQueryClient variants

* remove usage of deprecated methods in sdk example

* fix: incorrect method signature

* post rebasing fixes

* attempt to retrieve key rotation id before doing any config migration work

* ignore tests relying on networking behaviour

* allow networking failures in certain tests
2025-06-03 11:22:51 +01:00
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Nym Mixnet Contract

This is the cosmwasm smart contract which runs the Nym mixnet.

Compiling in development

RUSTFLAGS='-C link-arg=-s' cargo wasm

Production build

Install wasm-opt:

npm i wasm-opt -g

Run make mixnet-opt from the top level Nym directory

CI Support

We have template configurations for both GitHub Actions and Circle CI in the generated project, so you can get up and running with CI right away.

One note is that the CI runs all cargo commands with --locked to ensure it uses the exact same versions as you have locally. This also means you must have an up-to-date Cargo.lock file, which is not auto-generated. The first time you set up the project (or after adding any dep), you should ensure the Cargo.lock file is updated, so the CI will test properly. This can be done simply by running cargo check or cargo unit-test.

Using your project

Once you have your custom repo, you should check out Developing to explain more on how to run tests and develop code. Or go through the online tutorial to get a better feel of how to develop.

Publishing contains useful information on how to publish your contract to the world, once you are ready to deploy it on a running blockchain. And Importing contains information about pulling in other contracts or crates that have been published.

Please replace this README file with information about your specific project. You can keep the Developing.md and Publishing.md files as useful referenced, but please set some proper description in the README.