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Tech riderRev. 20 Sept 2026

Signo

Ch 265.6of 26 Code Signing Software
  1. 1Runs onAPI, Linux, self-hosted
  2. 2CostsNot stated by the maker
  3. 3Supported targetsFiles; Windows executables via Authenticode
  4. 4HSM key protectionYes
  5. 5CI/CD signingYes
4 lines stated Written from the maker's own pages: github.com
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Overview

Signo is ranked #26 of 26 in code signing software on Specifiction. It runs on API, Linux, Self-hosted.

Compared on code signing software

Supported targets
Files; Windows executables via Authenticodegithub.com
HSM key protection
Yesgithub.com
CI/CD signing
Yesgithub.com

Facts

Purpose
Signo is an open source, self hosted signing service with support for PKCS#11 tokens.github.com · 4 Oct 2026
File signing
It signs files through an HTTP API and supports plain signatures and Authenticode signing for Windows executables.github.com · 4 Oct 2026
Intended use
The project aims to let CI applications generate signed executables using certificates stored on hardware tokens.github.com · 4 Oct 2026
User management
Multiple users can manage tokens, signing engines, and signees.github.com · 4 Oct 2026
Token controls
A PKCS#11 token must be activated by manually entering its PIN before it can be used to sign.github.com · 4 Oct 2026
API access
API clients, called signees, can be assigned access to individual signing engines, and API requests are HMAC signed.github.com · 4 Oct 2026
Databases
The configuration supports either MySQL or SQLite.github.com · 4 Oct 2026
Security setup
The setup instructions require configuring an SSL certificate and listing PKCS#11 modules.github.com · 4 Oct 2026
Distribution
The project says Signo is available through NPM or Docker Hub, with NPM described as the simplest installation route.github.com · 4 Oct 2026
Runtime requirement
The quick start calls for a Linux machine with NodeJS 16 or 18 installed.github.com · 4 Oct 2026
License
The repository displays a GPL-3.0 license.github.com · 4 Oct 2026
Planned features
The README lists a cryptographically verifiable operations log, PDF signing, key and CSR generation, and certificate import to tokens as planned features.github.com · 4 Oct 2026

Best Signo alternatives

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Where it ranks on Specifiction

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Sources