Scripts for signing using PKCS11 library on Azure pipeline

Prerequisites

Azure DevOps
Any custom agent (self-hosted) with an operating system that supports Java on Azure DevOps
JDK installed on the agent
DigiCert® KeyLocker credentials
DigiCert® KeyLocker client tools

Client tools

DigiCert® KeyLocker clients can be downloaded in a package.

Download client tools

Sign in to DigiCert ONE.
Navigate to DigiCert® KeyLocker > Resources > Client tool repository.
Select your operating system.
Click the download icon next to DigiCert® KeyLocker clients.

Create PKCS11 configuration file

To create a configuration file with the path to this shared library:

Open an integrated development environment (IDE) or plain text editor.

Copy and paste the following text into the editor:

ejemplo 1. Windows

name=signingmanager 
library="<path to smpkcs11.dll>"
slotListIndex=0

Sample

name=signingmanager 
library="C:\\Program Files\\DigiCert\\DigiCert Keylocker Tools\\smpkcs11.dll"
slotListIndex=0

ejemplo 2. Linux

name=signingmanager 
library="<path to smpkcs11.so>"
slotListIndex=0

Sample:

name=signingmanager 
library="/home/<user>/Keylockertools-linux-x64/smpkcs11.so" 
slotListIndex=0

ejemplo 3. macOS

name=signingmanager 
library=<path to smpkcs11.dylib> 
slotListIndex=0

Sample:

name=signingmanager 
library=/Users/<user>/digicert/Keylockertools-mac-x64/smpkcs11.dylib" 
slotListIndex=0

Save the file as pkcs11properties.cfg.
Move the pkcs11properties.cfg file to the same location as the PKCS11 library.

Set PATH environment variables

Operating systems use the environment variable called PATH to determine where executable files are stored on your system. Use the PATH environment variable to store the file path to your signing tools to ensure that the CLI can reference these signing tools.

ejemplo 4. Windows

You can set the PATH environment variable using command line or via the environment variables.

To set the path to your signing tools via command line:

set PATH=%path%;<path to DigiCert Keylocker Tools>

Command sample:

set PATH=%path%;C:\Program Files\DigiCert\DigiCert Keylocker Tools

To set the path to your signing tools for your system or account:

Search for environment variables in the Windows start menu.
Select Edit environment variables for your account or Edit system environment variables.
Double click on the Path variable.
Click New.
Select Browse.
Select the path to the signing tool.
Click OK to save the path.
Click on OK to close the dialog.

ejemplo 5. Linux

To set the path to your signing tools via command line:

Launch the Terminal application.
Open the file in an editor:
```
nano ~/.profile
```

Add any exports definitions you need:

export PATH=<Path to DigiCert Keylocker Tools>

Click CTRL+X to exit.
Click Y to save.
Click Enter to keep the same file name.
Execute the new .profile by restarting Terminal or using:
```
 source ~/.profile
```

ejemplo 6. macOS

To set the path to your signing tools via command line:

Launch the Terminal application.
Create a profile file:
```
touch ~/.zprofile
```
Open the file in an editor:
```
open ~/.zprofile
```

Add any exports definitions you need, such as:

export PATH=<Path to DigiCert Keylocker Tools>

To save the new .zprofile, click File > Save (CMD + S).
Close the terminal window and reopen to use new saved variables.

User authentication

DigiCert® KeyLocker enforces multifactor authentication for security. To access keypairs, certificates, and sign code, you need to set up two types of credentials: an API token and an authentication certificate.

Create an API token

The API token is an authentication method used to verify you as a user and your permissionsUsers assigned in DigiCert ONE. The API token provides the first factor authentication.

Follow these steps to generate an API token:

Sign in to DigiCert ONE.
Select the profile icon (top-right).
Select Admin Profile.
Scroll down to API Tokens.
Select  Create API token.
Nota
The API token is only shown once, securely store the API key to use it later.

Create an authentication certificate

The client authentication certificate is an authentication method used to verify you as a user and your permissionsUsers assigned in DigiCert ONE. The client authentication certificate provides the second factor authentication.

Follow these steps to create a client authentication certificate:

Sign in to DigiCert ONE.
Select the profile icon (top-right).
Select Admin Profile.
Scroll down to Authentication certificates.
Select Create authentication certificate.
Nota
The client authentication certificate password shown after creating an client authentication certificate cannot be accessed again, download the certificate and securely store the password to use it later.

DigiCert® KeyLocker environment variables

Set the following environment variables:

Variable	Description
SM_API_KEY	Provide your API token.
SM_CLIENT_CERT_FILE	Provide your client authentication certificate.
SM_CLIENT_CERT_PASSWORD	Provide your client certificate password.
SM_HOST	Provide your host environment.
PKCS11_CONFIG	Provide the path to the PKCS11 configuration file.
SM_TLS_SKIP_VERIFY	Enter true to disable or false to enable TLS verification on client side.

Integration with Azure DevOps pipeline

Environment variables setup for pipeline

The client tools need these environment variables to connect with DigiCert® KeyLocker to provide its service. They can be integrated as variables in the pipeline which Azure will automatically inject as environment variables in the agent or they can be configured at an operating system environment level.

variables:
- name: SM_CLIENT_CERT_PASSWORD
 value: <client authentication certificate password>
- name: SM_CLIENT_CERT_FILE
  value: <Path to client authentication certificate file>
- name: SM_HOST
  value: <host url>
- name: SM_API_KEY
  value: <API Token>
- name: PKCS11_CONFIG
  value: <Path to pkcs11properties.cfg>

Sign

An example for an Azure DevOps pipeline step for signing a jar is:

- task: CmdLine@2
  displayName: 'Sign Jar'
  inputs:
    script: 'jarsigner -keystore NONE -storepass NONE -storetype PKCS11 -sigalg SHA256withRSA -providerClass sun.security.pkcs11.SunPKCS11 -providerArg $PKCS11_CONFIG -signedJar <Output path for the signed jar> <Input path for jar to be signed> <certificate alias> -tsa http://timestamp.digicert.com'

The input parameters for this example are the path where the signed jar needs to be output, the path to the jar that needs to be signed and the name/alias of the certificate that needs to be used for signing.

Nota

The PKCS11 configuration file was defined in the environment of the pipeline. If it was not defined, the path to the configuration file can be used instead.

Verification

An example of an Azure DevOps step that verifies a signed jar:

- task: CmdLine@2
  displayName: 'Verify Signed Jar'
  inputs:
    script: 'jarsigner -verify <path to the signed jar>'

The only input for this step is the path to the signed jar that needs to be verified.

Sample pipeline

trigger:
- main

pool:
  name: 'default'
  demands: agent.os -equals Linux

variables:
  - name: SM_CLIENT_CERT_PASSWORD
    value: gxmiK9Oe72Pn
  - name: SM_CLIENT_CERT_FILE
    value: "/home/john.doe/smtools/local_pkcs12.p12"
  - name: SM_HOST
    value: https://clientauth.one.digicert.com
  - name: SM_API_KEY
    value: 01ff018928e385329550b6e7a1_9b38fc5fbb4ef99ceeb7d61e6984107efa4283583cb7a64f5e292582cd3ed848
  - name: PKCS11_CONFIG
    value: "/home/john.doe/smtools/pkcs11properties.cfg"
  - name: KEYPAIR_NAME
    value: "azure-keypair-$(Build.BuildId)"

steps:

- task: Gradle@2
  displayName: 'Build'
  inputs:
    workingDirectory: ''
    gradleWrapperFile: 'gradlew'
    gradleOptions: '-Xmx3072m'
    javaHomeOption: 'path'
    jdkDirectory: '/usr/lib/jvm/java-11-openjdk-amd64'
    jdkArchitectureOption: 'x64'
    publishJUnitResults: true
    testResultsFiles: '**/TEST-*.xml'
    tasks: 'build'

- task: CmdLine@2
  displayName: 'Sign Jar'
  inputs:
    script: 'jarsigner -keystore NONE -storepass NONE -storetype PKCS11 -sigalg SHA256withRSA -providerClass sun.security.pkcs11.SunPKCS11 -providerArg $PKCS11_CONFIG -signedJar $(System.DefaultWorkingDirectory)/app/build/libs/signed.jar $(System.DefaultWorkingDirectory)/app/build/libs/app.jar $KEYPAIR_NAME -tsa http://timestamp.digicert.com'

- task: PublishBuildArtifacts@1
  displayName: 'Publish Unsigned Jar'
  inputs:
    PathtoPublish: '$(System.DefaultWorkingDirectory)/app/build/libs/app.jar'
    ArtifactName: 'Unsigned Jar'
    publishLocation: 'Container'

- task: PublishBuildArtifacts@1
  displayName: 'Publish Signed Jar'
  inputs:
    PathtoPublish: '$(System.DefaultWorkingDirectory)/app/build/libs/signed.jar'
    ArtifactName: 'Signed Jar'
    publishLocation: 'Container'

- task: CmdLine@2
  displayName: 'Verify Signed Jar'
  inputs:
    script: 'jarsigner -verify $(System.DefaultWorkingDirectory)/app/build/libs/signed.jar'

En esta sección:

Scripts for signing using PKCS11 library on Azure pipeline

Prerequisites

Client tools

Download client tools

Create PKCS11 configuration file

Set PATH environment variables

User authentication

Create an API token

Nota

Create an authentication certificate

Nota

DigiCert​​®​​ KeyLocker environment variables

Integration with Azure DevOps pipeline

Sign

Nota

Verification

Sample pipeline

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DigiCert® KeyLocker environment variables