Skip to main content

· 2 min read
Iñigo Querejeta Azurmendi

High level summary​

The open fronts that the crypto team is working on are:

  • cardano-base: Include final tests for BLS signature. Further adaptations for KES agent.
  • Sidechains: Implement BLS and JubJub using upstream's macros to merge these curves in halo2curves.

Low level summary​

cardano-base​

Sidechains​

  • Opened PR in halo2curves to include BLS12-381 and JubJub, #38
  • Addition constraint over JubJub merged #10

· One min read
James Chapman

The team works on applied research and consulting in formal methods that is directly applicable to evidence based engineering in Core Tech and beyond.

High level summary​

This sprint the team had two paper accepted for ICE 2023 (https://www.discotec.org/2023/ice). The event will be held in Lisbon on 19th June 2023. The papers will be published in EPTCS.

Details​

· 2 min read
Sebastian Nagel

High-level summary​

This week, the Hydra team achieved a number of milestones, including the release of the first mainnet compatible version. Besides this they also addressed inconsistencies in rollback handling, added an architecture page to the website, reducing the size of logs using event IDs. They also had productive discussions with researchers on plans for incremental commits/decommits and had a whiteboard session on DeFi and lending protocols. The goals for next week include completing the validation of the timed transactions feature, exploring stateless observation, refining the Hydra explorer ticket, writing ops instructions and troubleshooting, and implementing the first end-to-end journey for external commits.

What did the team achieve this week​

  • Released first mainnnet compatible version 0.10.0
  • Addressed inconsist handling of rollbacks #784
  • Added architecture page and fixed haddock links on our website #838
  • Opened a new hydra head on mainnet
  • Talked with researchers on initial plan for incremental commits/decommits
  • Had a Whiteboard session on DeFi and lending protocols
  • Reduced size of logs using event ids #859
  • Published the monthly report for April

What are the goals of next week​

  • Complete validation of timed transactions feature #196
  • Explored stateless observation and refined hydra explorer ticket #696
  • Write “ops” instructions and troubleshooting #569 and improve logs
  • Have a first end-to-end journey for external commits implemented #215

· 2 min read
Marcin Szamotulski

High level summary​

We started working on a new way to switch between root & ledger peers (see below). We continued to work on eclipse-evasion. We merged changes to Handshake contributed by Galois Inc. We made improvements to our tests (fixed a flaky test, added cddl specs for NodeToNodeVersionData and NodeToClientVersionData). We improved our CI and automated the process of releasing new package version to CHaP.

Detailed summary​

We continued to work on testing eclipse-evasion.

We came up with an idea to limit how full node wallets relay on root peers (currently operated by IOG, in future also CF and Emurgo). We designed a switch to use ledger peers if the node tip is close enough to the current time. For more details see #4530.

We merged changes to the handshake mini-protocol which allow one to query server's node-to-node / node-to-client parameters. We are grateful to Galois Inc. for implementing it, #4256 and #4538. We published new version of packages to CHaP chap-#253.

We added DiffusionError wrapper. Thanks to it, ouroboros-consensus will not duplicate diffusion errors messages in the log, #4537.

We fixed an issue which caused one of our tests to be flaky, #4515.

We added cddl tests for NodeToNodeVersionData and NodeToClientVersionData: #4540, #4544 (in review).

We wrote scripts which will help us release packages as well as verify that we released all the package necessary to build the newest set of packages, #4542.

We renamed the consensus startup tracer and make sure it doesn't log ExitSuccess exceptions, consensus-#71.

We reviewed PR which adds RawBearer API, #4395.

We made series of improvements to our CI:

  • #4539: we don't need to install cryptographic libraries in CI;
  • #4545: Javier Sagredo (consensus) cleaned up CI after consensus moved to a new repo;
  • #4546: we switched to use GitHub merge queues;
  • #4549: we made it possible to trigger building haddocks manually;
  • #4553: we fixed and enhanced caching of building dependencies.

· 2 min read
Jared Corduan

High level summary​

The ledger team focused mainly on the conway ledger era and node integration. For conway, we completed a large structural change that now allows for delegation certificates to be parameterized by era, and introducing new certificates for the first time since Shelley. We also continue to build out our contraint based generators that we will use to property test the conway era. In particular, we can now generate an entire ledger state and a transaction which is balanced with respect to the ledger state.

Low level summary​

Conway certificates​

Certificiates are now abstracted as a type family in the ledger codebase. Moreover, there are new certificates in the Conway era to support CIP-1694, and MIR certificates have been removed.

Constraint based testing​

Our plan for property testing in the conway era is to no longer use the trace generators, but instead generate ledger states and transactions based on constraints. We hit a milestone this week, namely the ability to generate a balanced transaction in the context of a ledger state, all based on our ever growing constaint language.

Integration work​

Technical debt​