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Zebra 1.0.0-beta.2

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@github-actions github-actions released this 02 Dec 20:55
· 2194 commits to main since this release
v1.0.0-beta.2
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Learn about vigilant mode.

Zebra's latest beta continues implementing zero-knowledge proof and note commitment tree validation. In this release, we have finished implementing transaction header, transaction amount, and Zebra-specific NU5 validation. (NU5 mainnet validation is waiting on an orchard crate update, and some consensus parameter updates.)

We also fix a number of security issues that could pose a local denial of service risk, or make it easier for an attacker to make a node follow a false chain.

As of this release, Zebra will automatically download and cache the Sprout and Sapling Groth16 circuit parameters. The cache uses around 1 GB of disk space. These cached parameters are shared across all Zebra and zcashd instances run by the same user.

Added

Network Upgrade 5

  • Validate orchard anchors (#3084)

Groth16 Circuit Parameters

  • Automatically download and cache Zcash Sapling and Sprout parameters (#3057, #3085)
  • Stop linking the Sapling parameters into the zebrad and Zebra test executables (#3057)

Proof & Anchor Verification

  • Use prepared verifying key for non-batch Sapling Groth16 verification (#3092)
  • Validate sapling anchors⚓ (#3084)
  • Add Sprout anchors to zebra-state (#3100)

Transaction Amount & Header Validation

  • Validate miner transaction fees (#3067, #3093)
  • Validate transaction lock times (#3060)
  • Validate transaction expiry height (#3082, #3103)

Dashboards

  • Add transaction-verification.json Grafana dashboard (#3122)

Fixed

  • Shut down channels and tasks on PeerSet Drop (#3078)
  • Re-order Zebra startup, so slow services are launched last (#3091)
  • Fix slow Zebra startup times, to reduce CI failures (#3104)
  • Speed up CI, and split unrelated and conflicting CI jobs (#3077)

Security

  • Stop closing connections on unexpected messages, Credit: Equilibrium (#3120, #3131)
  • Stop routing inventory requests by peer address (#3090)
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