sigstore-java

A sigstore java client for interacting with sigstore infrastructure

⚠️ This project is not ready for general-purpose use! ⚠️

This project requires a minimum of Java 11 and is current in pre-release, apis and dependencies are likely to change

You can files issues directly on this project or if you have any questions message us on the sigstore#java slack channel

Usage

Keyless Signing And Verification

Signing

Path testArtifact = Paths.get("path/to/my/file.jar")

var signer = KeylessSigner.builder().sigstorePublicDefaults().build();
var result = signer.sign(testArtifact);

// resulting signature information
String digest = result.getDigest(); // hex encoded sha256 digest
byte[] digestBytes = Hex.decode(result.getDigest()); // converted to byte array

CertPath certs = result.getCertPath() // java representation of a certificate path
byte[] certsBytes = Certificates.toPemBytes(result.getCertPath()) // converted to PEM encoded byte array

byte[] sig = result.getSignature() // artifact signature

Verification

byte[] digest = // byte array sha256 artifact digest
byte[] certificateChain = // byte array of PEM encoded cert chain
byte[] signature = // byte array of artifact signature

try {
  var verifier = KeylessVerifier.builder().sigstorePublicDefaults().build();
  verifier.verifyOnline(digest, certificateChain, signature)
} catch (KeylessVerificationException) {
  // verification failed
}

// verification passed!

Exploring the API

We do not have a process yet for publishing javadocs, but you can checkout the code at master (or a tagged version) and run

$ ./gradlew javadoc
$ "my-favorite-browser" ./build/docs/javadoc/index.html

License

vlsi/sigstore-java

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