macOS
Homebrewverified · 100%
brew install smimesignlocal Homebrew formula metadata
MacPortsverified · 94%
sudo port install smimesignMacPorts ports tree · security/smimesign/Portfile · source: api.github.com
brew / rank 6030
Install smimesign with Homebrew, MacPorts, Nix, scoop, winget
S/MIME signing utility for use with Git. Version 0.2.0 via Homebrew; verified 2026-07-26. Also installable with nix: nix profile install nixpkgs#smimesign.
install
Additional install commands
Linux
Nixverified · 92%
nix profile install nixpkgs#smimesignnixpkgs package indexes · pkgs/by-name/sm/smimesign/package.nix · source: api.github.com
Windows
Scoopverified · 92%
scoop install main/smimesignScoop official bucket manifest trees · bucket/smimesign.json · source: api.github.com
Windows Package Managerverified · 92%
winget install --id GitHub.smimesign -eWindows Package Manager source index · GitHub.smimesign · source: cdn.winget.microsoft.com
overview
Package summary
S/MIME signing utility for use with Git
Project links
Commands and aliases
- smimesign
history
Project history and usage
smimesign is GitHub's S/MIME signing utility for Git commits and tags on macOS and Windows. It matters in CLI packaging because it bridges Git's signing hooks with native X.509 certificate stores instead of requiring GnuPG keys.
Project history
The official README describes smimesign as an S/MIME signing utility compatible with Git, using X.509 certificates from public or internal certificate authorities. It also states that the tool uses keys and certificates already stored in macOS Keychain or Windows Certificate Store.
Adoption history
The README documents Homebrew installation on macOS and Scoop installation on Windows, while the supplied package metadata also lists MacPorts, Nix, and winget. This made it installable through the same package managers developers already use for Git tooling.
How it is used
Users configure Git to invoke smimesign for signing. For Git 2.19 and newer, the README shows setting `gpg.x509.program` to `smimesign` and `gpg.format` to `x509`, either locally per repository or globally for all repositories.
Why package nerds care
Package maintainers care because smimesign is security-sensitive, platform-specific, and tied to native certificate stores and smart cards. It is also a clear example of package managers distributing small developer-security helpers that integrate with a larger tool, Git.
Timeline
- 2018: First GitHub release returned by the releases API was 0.0.1.
- 2018: README documents the Git 2.19 configuration split for X.509 signing.
- 2021: Repository release list shows v0.2.0-rc1 as the latest listed release.
Related projects
- The README discusses Git, GnuPG, PKI, S/MIME, macOS Keychain, Windows Certificate Store, smart cards, OpenSC, and YubiKey PIV tooling.
Sources
- GitHub releases API for github/smimesign: first listed release 0.0.1 on 2018-09-11.
- https://github.com/github/smimesign README: purpose, platform support, certificate stores, Git configuration, package-manager installation, smart-card notes.
- input source_facts.package-manager: Homebrew, MacPorts, Nix, Scoop, and winget package names.
security posture
Risk level: green
narrow executable package without higher-risk signals.
Risk classifier
green risk · low confidence · appliance
Why
- narrow executable package without higher-risk signals
Signals
- metadata:no-higher-risk-signals
Install behavior
- No Homebrew bottle metadata was recorded.
Recommended review
Before unattended agent use, check whether the tool reads plaintext credentials, writes remote state, publishes artifacts, or shells out to plugins.
executables
Installed executables
| Command | Kind | Exposure | Note |
|---|---|---|---|
smimesign | executable | indexed executable | Discovered from the local executable index. |
freshness
Version and freshness
These signals separate page generation age, package-manager activity, and upstream release comparison. Version lag is warned only when an evidence URL and comparable versions are present.
page generated2026-08-03
manager version0.2.0
manager updated2026-07-26
local dataunknown
upstreamnot available
latest detectednot detected
- okNo freshness warnings were generated.
install metadata
Package metadata
| Package key | brew:smimesign |
|---|---|
| Version | 0.2.0 |
| Package manager | Homebrew |
| Homepage | https://github.com/github/smimesign |
| Repository | https://github.com/github/smimesign |
| Last updated | 2026-07-26T04:03:42+02:00 |
| Pulse | updated |
| Bottle | not recorded |
| Service | none declared |
source database matches
Other package-manager records
Matches are pulled from external package-manager indexes and kept separate from local Automic Vault package links.
Nix95%
smimesign
nix profile install nixpkgs#smimesign- normalized package name match
- Matched by: Smimesign
MacPorts95%
smimesign
sudo port install smimesign- normalized package name match
- Matched by: Smimesign
Scoop95%
main/smimesign
scoop install main/smimesign- normalized package name match
- Matched by: Smimesign
winget95%
GitHub.smimesign
winget install --id GitHub.smimesign -e- normalized package name match
- Matched by: Smimesign
source trail
Generated from repository data
This page is generated by av-web from the private package SQLite artifact built by scripts/generate-pkg-sqlite.py.
Combined YAML source
View the package source record on GitHub.
Used sources
- Geiger risk classifier
- cross-ecosystem install command graph
- curated package history
- external package-manager database matches
- pkg.so package database
- pkgdb category and tag curation