022808d028
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. See CHANGELOG.md for the full list of changes in this release. |
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| .. | ||
| src | ||
| Cargo.toml | ||
| README.md | ||
| coverage | ||
| zebrad-hash-lookup | ||
| zebrad-log-filter | ||
README.md
Zebra Utilities
This crate contains tools for zebra maintainers.
Programs
Binaries are easier to use if they are located in your system execution path.
zebra-checkpoints
This software will output a list of zcash block hashes that are used as zebra checkpoints. To create checkpoints a synchronized instance of zcashd is needed and a zcash-cli wallet connected to it must be available locally. For more information about how to create a checkpoint list please check here
This is a standalone rust binary, can be compiled as:
cargo build --release --bin zebra-checkpoints
After built check the program help with:
./target/release/zebra-checkpoints --help
zebrad-hash-lookup
Given a block hash the script will get additional information using zcash-cli.
$ echo "00000001f53a5e284393dfecf2a2405f62c07e2503047a28e2d1b6e76b25f863" | zebrad-hash-lookup
high: 3299
time: 2016-11-02T13:24:26Z
hash: 00000001f53a5e284393dfecf2a2405f62c07e2503047a28e2d1b6e76b25f863
prev: 00000001dbbb8b26eb92003086c5bd854e16d9f16e2e5b4fcc007b6b0ae57be3
next: 00000001ff3ac2b4ccb57d9fd2d1187475156489ae22337ca866bbafe62991a2
$
This program is commonly used as part of zebrad-log-filter where hashes will be captured from zebrad output.
zebrad-log-filter
The program is designed to filter the output from the zebra terminal or log file. Each time a hash is seen the script will capture it and get the additional information using zebrad-hash-lookup.
Assuming zebrad, zclash-cli, zebrad-hash-lookup and zebrad-log-filter are in your path the program can used as:
$ zebrad -v start | zebrad-log-filter
...
block::Hash("
high: 2800
time: 2016-11-01T16:17:16Z
hash: 00000001ecd754790237618cb79c4cd302e52571ecda7a80e6113c5e423c0e55
prev: 00000003ed8623d9499f4bf80f8bc410066194bf6813762b31560f9319205bf8
next: 00000001436277884eef900772f0fcec9566becccebaab4713fd665b60fab309
"))) max_checkpoint_height=Height(419581)
...