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Add cosign keyless signing for release artifacts #734

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3 changes: 3 additions & 0 deletions .github/workflows/release.yml
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Original file line number Diff line number Diff line change
Expand Up @@ -8,6 +8,7 @@ on:

permissions:
contents: write
id-token: write # cosign keyless signing via Sigstore OIDC

Comment on lines 9 to 12
jobs:
release:
Expand All @@ -17,6 +18,8 @@ jobs:
with:
fetch-depth: 0

- uses: sigstore/cosign-installer@v4

- uses: jdx/mise-action@v4

- name: Generate Homebrew Tap token
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11 changes: 11 additions & 0 deletions .goreleaser.yaml
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Expand Up @@ -61,6 +61,17 @@ archives:
checksum:
name_template: "checksums.txt"

signs:
- cmd: cosign
certificate: "${artifact}.pem"
args:
- sign-blob
- "--output-certificate=${certificate}"
- "--output-signature=${signature}"
- "${artifact}"
- "--yes" # keyless signing (Sigstore/Fulcio OIDC)
artifacts: checksum


homebrew_casks:
- name: entire
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34 changes: 34 additions & 0 deletions README.md
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Expand Up @@ -57,6 +57,40 @@ cd your-project && entire enable
entire status
```

### Download & Verify (manual install)

Pre-built binaries are available from the [GitHub Releases](https://github.com/entireio/cli/releases) page. All release checksums are signed with [cosign](https://docs.sigstore.dev/cosign/overview/) using keyless (ephemeral) signing via Sigstore, so you can verify that artifacts haven't been tampered with.

Comment on lines +60 to +63
```bash
# 1. Set the version and platform
VERSION="0.5.0" # replace with desired version
OS="linux" # linux or darwin
ARCH="amd64" # amd64 or arm64

# 2. Download the archive, checksums, signature and certificate
BASE_URL="https://github.com/entireio/cli/releases/download/v${VERSION}"
curl -fsSLO "${BASE_URL}/entire_${OS}_${ARCH}.tar.gz"
curl -fsSLO "${BASE_URL}/checksums.txt"
curl -fsSLO "${BASE_URL}/checksums.txt.sig"
curl -fsSLO "${BASE_URL}/checksums.txt.pem"

# 3. Verify the signature on the checksums file
cosign verify-blob checksums.txt \
--certificate checksums.txt.pem \
--signature checksums.txt.sig \
--certificate-oidc-issuer https://token.actions.githubusercontent.com \
--certificate-identity-regexp 'github\.com/entireio/cli'
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@cursor cursor bot Mar 19, 2026

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Verification regexp matches unintended repositories in same org

Low Severity

The --certificate-identity-regexp 'github\.com/entireio/cli' pattern is an unanchored substring match, so it matches any Fulcio certificate SAN containing that string — including repos like entireio/client or entireio/cli-tools, since client starts with cli. The Sigstore best practice (per cosign issue #2804) is to use an anchored, path-specific pattern like 'https://github\.com/entireio/cli/\.github/workflows/release\.yml@refs/tags/v' to prevent unintended matches from other workflows or repositories.

Fix in Cursor Fix in Web


# 4. Verify the archive against the signed checksums
sha256sum --check --ignore-missing checksums.txt

# 5. Extract and install
tar xzf "entire_${OS}_${ARCH}.tar.gz"
sudo install -m 755 entire /usr/local/bin/entire
```

> **Note:** On macOS, use `shasum -a 256 --check --ignore-missing checksums.txt` instead of `sha256sum`.

## Typical Workflow

### 1. Enable Entire in Your Repository
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