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Mithril Team Update

· 3 min read
Jean-Philippe Raynaud
Jean-Philippe Raynaud
Mithril Tech Lead

High level overview​

This week, the Mithril team completed the implementation of the Relation trait for the IVC circuit and the removal of the HTTP client and TLS features from STM. They continued implementing the circuit verification key whitelist/revoke mechanism, supporting an IVC follower aggregator joining the network at any time, and adding a Proof of Bound Possession for the SNARK verification keys. They also started activating the dual genesis keys and the future_snark feature by default, testing the scaling of the SNARK infrastructure to full security parameters, and finalizing the Mithril SNARK Book.

The team completed the certificate chain cache committed after chain verification in the client library and started leveraging it with the EarlyStopVerification mode.

Finally, they released the new 2630.1-hotfix distribution which fixes a stack overflow in the aggregator and signer on the release-preprod network when decoding a block, kept upgrading to Cardano node 11.1, and kept investigating the blocks and transactions verification failure on the testing-preview network.

Low level overview​

Features​

  • Completed the issue Implement Relation trait for the IVC circuit #3428
  • Completed the issue Remove the HTTP client and TLS features from STM #3558
  • Completed the issue Add a certificate chain cache committed after chain verification in the client library #3520
  • Worked on the issue Implement circuit verification key whitelist/revoke mechanism #3148
  • Worked on the issue Support an IVC follower aggregator joining the network at any time #3446
  • Worked on the issue Add a SNARK verification key Proof of Bound Possession #3537
  • Worked on the issue Activate dual genesis keys #3388
  • Worked on the issue Activate future_snark feature by default #2814
  • Worked on the issue Test scaling SNARK infrastructure to full security parameters #3153
  • Worked on the issue Finalize the Mithril SNARK Book #3383
  • Worked on the issue Leverage the certificate chain cache with the EarlyStopVerification mode #3521

Protocol maintenance​

  • Released the new distribution 2630.1-hotfix
  • Published a dev blog post Distribution 2630.1 hotfix is now available
  • Completed the issue Stack overflow in aggregator and signer on release-preprod when decoding a block #3549
  • Worked on the issue Upgrade to Cardano 11.1 #3346
  • Worked on the issue Blocks and transaction verification fails on testing-preview #3526

Mithril Team Update

· 3 min read
Jean-Philippe Raynaud
Jean-Philippe Raynaud
Mithril Tech Lead

High level overview​

This week, the Mithril team completed the missing IVC off-circuit checks, the property-based tests for the IVC pure helpers, the caching of the circuit keys with the reuse of the SNARK prover setups, and the enhancements of the end-to-end tests for the IVC SNARK. They continued implementing the circuit verification key whitelist/revoke mechanism and supporting an IVC follower aggregator joining the network at any time. They also started implementing the Relation trait for the IVC circuit and adding a Proof of Bound Possession for the SNARK verification keys.

The team completed the IPFS support in the end-to-end tests, the test infrastructure for IPFS nodes, and the summary of the IPFS PoC. They also started adding a certificate chain cache committed after chain verification in the client library.

Finally, they kept upgrading to Cardano node 11.1, reduced the aggregator compile time, and kept investigating the blocks and transactions verification failure on the testing-preview network.

Low level overview​

Features​

  • Completed the issue Add missing IVC off-circuit checks #3381
  • Completed the issue Add property-based tests for the IVC pure helpers #3469
  • Completed the issue Cache the circuit keys and reuse the SNARK prover setups #3424
  • Completed the issue Enhance end-to-end tests for IVC SNARK #3390
  • Completed the issue Implement IPFS in the end to end tests #3460
  • Completed the issue Prepare summary for IPFS PoC #3519
  • Worked on the issue Implement circuit verification key whitelist/revoke mechanism #3148
  • Worked on the issue Support an IVC follower aggregator joining the network at any time #3446
  • Worked on the issue Implement Relation trait for the IVC circuit #3428
  • Worked on the issue Add a SNARK verification key Proof of Bound Possession #3537
  • Worked on the issue Add a certificate chain cache committed after chain verification in the client library #3520

Protocol maintenance​

  • Completed the issue Implement test infrastructure for IPFS nodes #3461
  • Completed the issue Reduce the aggregator compile time #3538
  • Completed the issue Publication to doc.rs failed for distribution 2630 #3507
  • Worked on the issue Upgrade to Cardano 11.1 #3346
  • Worked on the issue Blocks and transaction verification fails on testing-preview #3526

Mithril Team Update

· 2 min read
Jean-Philippe Raynaud
Jean-Philippe Raynaud
Mithril Tech Lead

High level overview​

This week, the Mithril team completed the behavior tests for the IVC wiring, the harmonization of the recursive and non-recursive SNARK implementations in STM, and the STM README with recursive and non-recursive examples. They continued adding the missing IVC off-circuit checks, implementing the circuit verification key whitelist/revoke mechanism, and supporting an IVC follower aggregator joining the network at any time. They also started adding property-based tests for the IVC pure helpers.

The team completed the adaptation of the documentation for the on-chain configuration parameters. They also completed the IPFS file downloader of the client and started implementing the IPFS support in the end-to-end tests.

Finally, they kept upgrading to Cardano node 11.1, started fixing the failed publication of the distribution 2630 to docs.rs, and started investigating the blocks and transactions verification failure on the testing-preview network.

Low level overview​

Features​

  • Completed the issue Add behavior tests for the IVC wiring #3465
  • Completed the issue Harmonize the recursive and non-recursive SNARK implementations in STM #3421
  • Completed the issue Adapt documentation for on-chain configuration parameters #3398
  • Completed the issue Implement an IpfsFileDownloader in the client #3459
  • Completed the issue Update STM README with recursive/non-recursive examples #3385
  • Worked on the issue Add missing IVC off-circuit checks #3381
  • Worked on the issue Implement circuit verification key whitelist/revoke mechanism #3148
  • Worked on the issue Support an IVC follower aggregator joining the network at any time #3446
  • Worked on the issue Add property-based tests for the IVC pure helpers #3469
  • Worked on the issue Implement IPFS in the end to end tests #3460

Protocol maintenance​

  • Worked on the issue Upgrade to Cardano 11.1 #3346
  • Worked on the issue Publication to doc.rs failed for distribution 2630 #3507
  • Worked on the issue Blocks and transaction verification fails on testing-preview #3526

Mithril Team Update

· 4 min read
Jean-Philippe Raynaud
Jean-Philippe Raynaud
Mithril Tech Lead

High level overview​

This week, the Mithril team completed the documentation of the recursive and non-recursive SNARK aggregation as well as the concatenation aggregation on the documentation website. They also completed the recovery of the ignored IVC prover input preparation tests and the split of the prove_all_scenarios monolith into separated tests. They continued adding the missing IVC off-circuit checks and the behavior tests for the IVC wiring, harmonizing the recursive and non-recursive SNARK implementations in STM, and started supporting an IVC follower aggregator joining the network at any time as well as the circuit verification key whitelist/revoke mechanism.

The team completed the new chain adapter that reads the on-chain configuration parameters, the adaptation of the legacy diffusion in the aggregator, the removal of these parameters from the aggregator configuration, the enhancements of the protocol configuration markers, and the infrastructure adaptation. They also completed the deterministic immutable compressed archives and the IPFS file uploader of the aggregator, continued implementing the IPFS file downloader of the client, fixed the deployment of the Cardano blocks and transactions signing configuration.

Finally, they kept upgrading to Cardano node 11.1 and updating the ed25519-dalek dependency.

Low level overview​

Features​

  • Completed the issue Add documentation for recursive SNARK #3144
  • Completed the issue Add documentation for non recursive SNARK #3155
  • Completed the issue Add documentation for concatenation aggregation #3487
  • Completed the issue Recover the ignored IVC prover input preparation tests #3466
  • Completed the issue Replace prove_all_scenarios monolith with separated tests #3468
  • Completed the issue Create new chain adapter to read on-chain configuration parameters #3393
  • Completed the issue Adapt legacy diffusion in aggregator with on-chain configuration parameters #3394
  • Completed the issue Remove the protocol configuration parameters in aggregator configuration #3395
  • Completed the issue Enhancements protocol configuration markers #3503
  • Completed the issue Create deterministic immutable compressed archives #3435
  • Completed the issue Implement an IpfsFileUploader in the aggregator #3457
  • Worked on the issue Add missing IVC off-circuit checks #3381
  • Worked on the issue Add behavior tests for the IVC wiring #3465
  • Worked on the issue Harmonize the recursive and non-recursive SNARK implementations in STM #3421
  • Worked on the issue Support an IVC follower aggregator joining the network at any time #3446
  • Worked on the issue Implement circuit verification key whitelist/revoke mechanism #3148
  • Worked on the issue Implement an IpfsFileDownloader in the client #3459
  • Worked on the issue Adapt documentation for on-chain configuration parameters #3398

Protocol maintenance​

  • Completed the issue Adapt infrastructure for on-chain configuration parameters - Phase 1 #3397
  • Completed on the issue Adapt infrastructure for on-chain configuration parameters - Phase 2 #3497
  • Completed the issue Cardano blocks and transactions signing configuration is not deployed #3499
  • Worked on the issue Upgrade to Cardano 11.1 #3346
  • Worked on the issue Update ed25519-dalek dependency #3471

Mithril Team Update

· 3 min read
Jean-Philippe Raynaud
Jean-Philippe Raynaud
Mithril Tech Lead

High level overview​

This week, the Mithril team completed the optimization of the SNARK test suite by extending the on-disk test cache to the recursive circuit test fixtures, consolidating the halo2_snark slow proof tests around shared and golden proofs, and consolidating the recursive circuit MockProver tests. They continued adding the missing IVC off-circuit checks and started recovering the ignored IVC prover input preparation tests, and started documenting the recursive and non-recursive SNARK aggregation as well as the concatenation aggregation on the documentation website.

The team also completed the adaptation of the end-to-end test for the on-chain configuration parameters and the runbook documenting them, and continued implementing the new chain adapter that reads these parameters and adapting the infrastructure. They continued working on the deterministic immutable compressed archives and on the IPFS file uploader of the aggregator.

Finally, the team continued upgrading to Cardano node v.11.1 and updating the ed25519-dalek dependency.

Low level overview​

Features​

  • Completed the issue Extend the on-disk test cache to the recursive circuit test fixtures #3462
  • Completed the issue Consolidate the halo2_snark slow proof tests around shared and golden proofs #3463
  • Completed the issue Consolidate the recursive circuit MockProver tests #3464
  • Completed the issue Adapt end-to-end test for on-chain configuration parameters #3396
  • Worked on the issue Add missing IVC off-circuit checks #3381
  • Worked on the issue Recover the ignored IVC prover input preparation tests #3466
  • Worked on the issue Create new chain adapter to read on-chain configuration parameters #3393
  • Worked on the issue Create deterministic immutable compressed archives #3435
  • Worked on the issue Implement an IpfsFileUploader in the aggregator #3457
  • Worked on the issue Add documentation for recursive SNARK #3144
  • Worked on the issue Add documentation for non recursive SNARK #3155
  • Worked on the issue Add documentation for concatenation aggregation #3487

Protocol maintenance​

  • Completed the issue Create runbook for on-chain configuration parameters #3399
  • Completed the issue Fix admonitions in website and update Footer Discord info #3491
  • Worked on the issue Upgrade to Cardano 11.1 #3346
  • Worked on the issue Adapt infrastructure for on-chain configuration parameters #3397
  • Worked on the issue Update ed25519-dalek dependency #3471