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Module slsa

Module slsa 

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§SLSA (Supply-chain Levels for Software Artifacts) Implementation

This module provides functionality for generating SLSA (Supply-chain Levels for Software Artifacts) v1 build provenance attestations. SLSA is a security framework that helps protect the integrity of software artifacts throughout the development and deployment pipeline.

§Overview

SLSA provenance provides a cryptographically verifiable record of:

  • What software was built
  • How it was built (build process, tools, environment)
  • Who built it (builder identity and authentication)
  • When it was built (timestamps and metadata)

§SLSA Build Levels

This implementation supports SLSA Build provenance with varying levels of security:

  • Build L1: Basic provenance generation with minimal requirements
  • Build L2: Enhanced provenance with hosted build service requirements
  • Build L3: High-confidence provenance with additional security controls

§Key Components

§Examples

§Basic Build Provenance Generation

use atlas_cli::slsa::cli::generate_build_provenance;
use atlas_c2pa_lib::cose::HashAlgorithm;
use std::path::PathBuf;

// Generate SLSA build provenance for compiled artifacts
generate_build_provenance(
    vec![PathBuf::from("src/main.rs")],           // input files
    PathBuf::from("Makefile"),                    // build script
    vec![PathBuf::from("target/release/myapp")],  // output artifacts  
    Some(PathBuf::from("signing_key.pem")),       // signing key
    HashAlgorithm::Sha384,                        // hash algorithm
    "json".to_string(),                           // output format
    true,                                         // print to stdout
    None,                                         // storage backend
    false,                                        // TDX support
).unwrap();

Modules§

cli
Atlas CLI SLSA Build Provenance Generator
generators
SLSA Build Provenance Structure Generators

Constants§

BUILD_PROVENANCE_PREDICATE_TYPE_V1
The standard SLSA v1 build provenance in-toto predicate type URI.