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initial implementation
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‎.gitignore

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/target
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Cargo.lock

‎Cargo.toml

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[package]
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name = "sigstore"
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description = "An experimental crate to interact with sigstore"
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version = "0.0.1"
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edition = "2018"
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authors = [
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"Flavio Castelli <fcastelli@suse.com>",
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]
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[dependencies]
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anyhow = "1.0.44"
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base64 = "0.13.0"
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ecdsa = { version = "0.12.4", features = ["verify", "pem", "der", "pkcs8"] }
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oci-distribution = "0.7.0"
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p256 = {version = "0.9.0", features = ["ecdsa-core"]}
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tokio = { version = "1.12.0", features = ["full"]}
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tracing = "0.1.28"
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serde = {version = "1.0.130", features = ["derive"]}
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serde_json = "1.0.68"
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[dev-dependencies]
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clap = "2.33.3"

‎LICENSE

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Apache License
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Version 2.0, January 2004
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‎README.md

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This is an experimental crate to interact with [sigstore](https://sigstore.dev/).
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This is under high development, many features and probably checks are still missing.
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## Examples
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### Verification
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Create a keypair using the official cosign client:
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```console
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cosign generate-key-pair
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```
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Sign a container image:
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```console
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cosign sign -key cosign.key registry-testing.svc.lan/busybox
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```
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Verify the image signature using the example program defined under
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`examples/verify`:
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```console
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cargo run --example verify -- -k cosign.pub registry-testing.svc.lan/busybox
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```

‎examples/verify/main.rs

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extern crate sigstore;
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extern crate anyhow;
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use anyhow::Result;
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extern crate oci_distribution;
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use oci_distribution::{secrets::RegistryAuth, Reference};
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use std::fs::File;
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use std::io::prelude::*;
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extern crate clap;
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use clap::{App, Arg};
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fn cli() -> App<'static, 'static> {
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App::new("verify")
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.about("verify a container image")
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.arg(
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Arg::with_name("key")
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.short("k")
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.long("key")
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.value_name("KEY")
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.help("Verification Key")
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.required(true)
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.takes_value(true),
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)
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.arg(
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Arg::with_name("IMAGE")
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.help("Name of the image to use")
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.required(true)
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.index(1),
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)
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}
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async fn run_app() -> Result<()> {
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let matches = cli().get_matches();
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let auth = &RegistryAuth::Anonymous;
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let mut client = oci_distribution::Client::default();
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let image: Reference = String::from(matches.value_of("IMAGE").unwrap()).parse()?;
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let (cosign_signature_image, source_image_digest) =
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sigstore::triangulate(&mut client, image, auth).await?;
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let mut pub_key_file = File::open(matches.value_of("key").unwrap())?;
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let mut pub_key = String::new();
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pub_key_file.read_to_string(&mut pub_key)?;
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sigstore::verify(
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&mut client,
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auth,
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source_image_digest,
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cosign_signature_image,
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pub_key,
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)
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.await
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}
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#[tokio::main]
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pub async fn main() {
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std::process::exit(match run_app().await {
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Ok(_) => {
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println!("Image successfully verified");
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0
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}
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Err(err) => {
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eprintln!("Image verification failed: {:?}", err);
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1
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}
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});
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}

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