Signing Project Packages

UiPath CLI 25.10 introduces the ability to digitally sign automation project packages during the pack operation. Package signing provides authenticity verification and ensures that packages have not been tampered with after creation, enhancing security in your CI/CD pipeline.

When you sign a project package, the CLI:

1. Creates the .nupkg package file
2. Applies a digital signature using your certificate
3. Optionally timestamps the signature for long-term validity

Supported certificate types

The CLI supports PKCS#12 (.pfx) certificate format.

Important:

The certificate must:

• Include a private key for signing
• Be valid (not expired)
• Have code signing capabilities

Parameters

The package pack command supports the following signing parameters:

Parameter	Description	Required
--certificatePath	Path to the certificate file (.pfx)	Yes (if signing)
--certificatePassword	Password for the certificate file	No
--timestampServerUrl	URL of the RFC 3161 timestamp server	No

Usage examples

Basic signing with certificate

# Windowsuipcli package pack "C:\Projects\MyRobot\project.json" `  -o "C:\Packages" `  --certificatePath "C:\Certificates\codesign.pfx" `  --certificatePassword "YourPassword123"# Linux/macOSuipcli package pack "./MyRobot/project.json" \  -o "./packages" \  --certificatePath "./certificates/codesign.pfx" \  --certificatePassword "YourPassword123"

Signing with timestamp server

Adding a timestamp ensures the signature remains valid even after the certificate expires.

uipcli package pack "./MyRobot/project.json" \  -o "./packages" \  --certificatePath "./certificates/codesign.pfx" \  --certificatePassword "YourPassword123" \  --timestampServerUrl "http://timestamp.digicert.com"

Signing with version and output type

uipcli package pack "./MyRobot/project.json" \  -o "./packages" \  -v "1.0.5" \  --outputType "Process" \  --certificatePath "./certificates/codesign.pfx" \  --certificatePassword "YourPassword123" \  --timestampServerUrl "http://timestamp.digicert.com"

Signing with passwordless certificate

uipcli package pack "./MyRobot/project.json" \  -o "./packages" \  --certificatePath "./certificates/codesign.pfx"

Signing with Orchestrator library dependencies

uipcli package pack "./MyRobot/project.json" \  -o "./packages" \  --libraryOrchestratorUrl "https://cloud.uipath.com/" \  --libraryOrchestratorTenant "Default" \  -A "myorg" \  -I "becc663c-8f1e-409a-a75f-c00330d80bc8" \  -S "********" \  --libraryOrchestratorApplicationScope "OR.Folders OR.Execution" \  --certificatePath "./certificates/codesign.pfx" \  --certificatePassword "YourPassword123" \  --timestampServerUrl "http://timestamp.digicert.com"

Recommended timestamp servers

Using a timestamp server is recommended to ensure signatures remain valid after certificate expiration:

• http://timestamp.digicert.com - DigiCert
• http://timestamp.comodoca.com - Sectigo (Comodo)
• http://timestamp.globalsign.com - GlobalSign
• http://timestamp.sectigo.com - Sectigo

Best practices

Secure certificate storage

• Never commit certificates to version control
• Use secure storage solutions:
  • Azure Key Vault
  • AWS Secrets Manager
  • HashiCorp Vault
  • GitHub Secrets / Azure DevOps Secure Files
  • CI/CD platform secret management

Environment variables

• Use environment variables or secrets management for passwords
• Avoid hardcoding sensitive information in scripts

Timestamp usage

• Always use a timestamp server in production environments
• Timestamps ensure signature validity beyond certificate expiration

Certificate management

• Use dedicated code signing certificates
• Rotate certificates before expiration
• Maintain certificate backups securely