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Willowʼ25, SimpleStoreSled + Data model and Meadowcap updates

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@sgwilym sgwilym released this 09 Apr 12:04
· 102 commits to main since this release
2024-04-09
437d85c

The highlights of this release:

  • willow-store-simple-sled - a new persistent Willow data store
  • willow_25 - Ready-made parameter choices to use with Willow specs
  • Store - a new trait for implementing your own Willow data stores

We've also done a lot of work under the hood, focusing on new efficient encoding and decoding systems powered by ufotofu_codec, and laying the groundwork for the WGPS and Sideloading protocol.

willow-store-simple-sled

This is a new persistent store for Willow data implementing our new Store trait. It is simple, with a straightforward implementation without fancy data structures. It uses sled. You can start using it today to build applications which will soon be able to talk to each other via the WGPS and Sideloading protocols!

let db = sled::open("my_db").unwrap();
let namespace = willow_25::NamespaceId25::new_communal();

let store = StoreSimpleSled::new(namespace, db).unwrap();

Willowʼ25

Willowʼ25 is the name we've given to Willow-with-parameters-we-recommend-in-2025. Willow has a lot of parameters to fill in, and we'd like to make it easy to choose secure, performant ones. As a bonus, it could make more Willow instances interoperable with one another!

In 0.1.0 of the willow_25 crate, we now expose all the parameters needed for the Willow Data Model and Meadowcap: NamespaceId25, SubspaceId25, PayloadDigest25, and AuthorisationToken25.

willow-data-model 0.2.0

We have made many updates to the willow-data-model crate, including the addition of a new Store trait. Types which implement this trait will be compatible with our in-progress WGPS and Sideloading crates.

We've also refined many of the existing types, adopted the new ufotofu_codec crate for our encoding and decoding, and added some new private encodings (spec forthcoming) to encode data relative to some private knowledge.

meadowcap 0.2.0

We've refactored our encoding to use the new, more performant ufotofu_codec crate, as well as private encodings for McCapability. We've also added a new dev feature, SillySigs, a signature scheme useful for fuzz testing.

We are well into our WGPS and Sideloading protocol implementations, and hope to have more news soon!

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