Signer guide

The KeyLocker Signer is an account user responsible for signing with the key stored DigiCert® KeyLocker.

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If you are a KeyLocker Lead or Signer, follow this guide to get ready to sign while your private key remains securely stored in DigiCert® KeyLocker.

There are two methods you can use to set up the tools to sign:

DigiCert® KeyLocker wizard (recommended)
Follow the procedures outlined in this article

DigiCert® KeyLocker wizard

Using the DigiCert® KeyLocker wizard is recommended because it provides a wizard supported experience that validates whether you have successfully completed a step.

To access the DigiCert® KeyLocker wizard:

Sign in to DigiCert ONE.
Navigate to the Manager menu (top-right) > KeyLocker.
Select Get started.
Follow the instructions to get ready to sign.

Get ready to sign

If you are unable to use the DigiCert® KeyLocker wizard, manually complete the steps below to get ready to sign.

Download DigiCert® KeyLocker tools

Before downloading your tools, review the DigiCert® KeyLocker tools required for signing based on your operating.

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We have packaged all the tools you may require for your operating system to ensure that you have everything you need in one download. For more information, review Compatible operating system versions for client tools.

Download tools

To download DigiCert® KeyLocker client tools:

Sign in to DigiCert ONE.
Select the Manager menu icon (top-right) > KeyLocker.
Navigate to: Resources > Client tool repository.
Select your operating system.
Select the download icon next to the client you want to download.

Create your credentials

When you sign your software, your API key and client authentication certificate authenticate you to DigiCert® KeyLocker, not your DigiCert ONE username and password. The API key and client authentication certificate provide two-factor authentication (2FA).

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Service users are generally used for automated signing and therefore do not have credentials to access DigiCert ONE. However, service users can still sign and access resources like keys and certificates in DigiCert® KeyLocker when authenticated by an API token and client authentication certificate.

Create an API key

An API key is a unique identifier generated by the server to authenticate a user or calling program to an API.

Follow the procedure below based on your user classification:

例 1. User

Users can create their own API token because they have access to DigiCert ONE.

To create an API key:

Sign in to DigiCert ONE.
Navigate to the Profile icon (top right).
Select Admin Profile.
Identify the On this page section (right), select API tokens.
Select Create API Token.
Securely store your API token.
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The API token cannot be viewed again.

例 2. Service user

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The DigiCert® Account Manager permission: Manage users is required to create an API key for service users.

You can only create an API key for a new service user; you cannot create an API key for an existing user.

To create an API key for a new service user:

Sign in to DigiCert ONE.
Navigate to Manager menu icon (top right).
Select DigiCert® Account Manager > Access > Service users.
Select Create service user.
Complete the fields, and then select Next.
Define the roles and permissions for each selected manager, and then select Add user.
In the window that displays, securely copy and store the service user token ID, which is the user's API key.
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The API token cannot be viewed again.

Create a client authentication certificate

A client authentication certificate is a X.509 digital certificate with a unique password that is generated by the server to authenticate a user or calling program to an API.

例 3. User

Users can create their own client authentication certificate because they have access to DigiCert ONE.

To generate a client authentication certificate:

Sign in to .
Navigate to the Profile icon (top right).
Select Admin Profile
Identify the On this page section (right), select Authentication Certificates.
Select Create authentication certificate.
Copy the certificate password.
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The password cannot be viewed again.
Select Download client authentication certificate.

例 4. Service user

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The DigiCert® Account Manager permission: Manage users is required to create a client authentication certificate for someone else.

To create a client authentication certificate for a service user:

Sign in to DigiCert ONE.
Navigate to Manager menu icon (top right).
Select DigiCert® Account Manager > Access > Service users.
Select on the user's name.
Identify the On this page section (right), select Authentication Certificates.
Select Create authentication certificate.
Copy and securely store the certificate password.
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The password cannot be viewed again.
Select Download client authentication certificate.

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Your API key and client authentication certificate inherit your user role.

Secure your credentials

Your DigiCert ONE host environment, API key, client authentication certificate and password make up your environment variables and are required to access DigiCert® KeyLocker client tools. You may want to use one of the methods below to securely store your credentials based on your operating system.

例 5. Windows

DigiCert recommends storing your API key and client authentication certificate password in Windows Credential Manager, an encrypted vault, protected from unauthorized access.

例 6. Linux

DigiCert recommends storing your API key and client authentication certificate password in Linux Pass, a password manager that uses GnuPG for encryption and decryption of stored information.

例 7. macOS

DigiCert recommends storing your API key and client authentication certificate password in Keychain Access, a macOS application that stores your passwords and account information.

Install third-party signing tools

DigiCert® KeyLocker offers simplified signing with third-party signing tools. Refer to Files supported for signing for list of compatible tools and what they can be used to sign.

Configuration instructions:

Verify that you are ready to sign (optional)

To confirm that your credentials and signing tools were configured correctly:

Open SMCTL.

Run the command:

smctl healthcheck

Output sample:

--------- User credentials ------
Status: Connected

Username: john.doe
Accounts: Example, Inc.
Authentication: 2FA
Environment: Prod
Credentials:
        Host: https://clientauth.one.digicert.com
        API key: 01587358d5ae74e214f7dd332b_09exxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxe6 (Pulled from environment variable)
        Client certificate file path: C:\Users\John.Doe\Documents\KL\john-client-cert.p12
        Client certificate password: feoTxxxxxxf8 (Pulled from environment variable)
API keys:
        Name: john-API (expires on Fri, 31 Jul 2026 23:59:59 UTC)
Client certificates:
        Name: john-client-cert (expires on Fri, 31 Jul 2026 23:59:59 UTC)
Privileges:
        Can sign: Yes
        Can approve release window: No
        Can revoke certificate: Yes

Permissions:
Account Manager:
        VIEW_AM_ROLE
        VIEW_AM_ACCOUNT
        VIEW_AM_USER

Keypairs:
        MANAGE_SM_KEYPAIR
        VIEW_SM_KEYPAIR
        SIGN_SM_HASH

Certificates:
        VIEW_SM_CERTIFICATE
        REVOKE_SM_CERTIFICATE

Other permissions:
        VIEW_SM_LICENSE
        MANAGE_SM_CC_API_KEY

--------- Signing tools ---------
Mage:
        Mapped: Yes
        Path: C:\Program Files (x86)\Microsoft SDKs\Windows\v10.0A\bin\NETFX 4.8 Tools\mage.exe
Nuget:
        Mapped: Yes
        Path: C:\Program Files (x86)\NuGet
uget.exe
Jarsigner:
        Mapped: Yes
        Path: C:\Program Files\Java\jdk-17\bin\jarsigner.exe
Apksigner:
        Mapped: No
Signtool 32 bit:
        Mapped: Yes
        Path: C:\Program Files (x86)\Windows Kits\signtool_32.exe
Signtool:
        Mapped: Yes
        Path: C:\Program Files (x86)\Windows Kits\10\bin\10.0.22621.0\x64\signtool.exe

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If the healthcheck fails, troubleshoot the following.

Ensure that:

You provided the correct host in the environment variable.
You provided the correct API token in the environment variable.
You provided the correct client authentication certificate in the environment variable.
You provided the correct password for your client authentication certificate.
You have a stable internet connection.
If the organization's proxy is enabled, you need to add these settings to the environment variables.

View your certificates

The Certificates tab is useful to identify your certificate fingerprint, keypair alias, or keypair ID used in signing commands.

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Don't see any certificates?

As a KeyLocker Signer, you can only view certificates that you can sign with. Reach out to your account Lead, and request to be added as the designated signer for a KeyLocker certificate.

To view certificate information:

Sign in to DigiCert ONE.
Navigate to: Manager menu icon (top-right) > KeyLocker.
Select Certificates.
Select the certificate alias to view more information.

CI/CD integration (optional)

Integrate DigiCert® KeyLocker into continuous integration and continuous deployment (CI/CD) pipelines. CI/CD integrations automate and streamline the software development and deployment process. DigiCert® KeyLocker offers CI/CD plugins and script integrations which are both methods used to incorporate CI/CD functionality into your software development workflow. While plugins are easier to use, script integrations offer more flexibility.

To automate signing as part of your CI/CD workflows, refer to CI/CD integrations.

Sign

Follow the instructions in the following articles to sign while your private key remains in DigiCert® KeyLocker:

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