Key Master

    Overview

    Signing keys and certificates are managed in FusionAuth using Key Master. After creating or importing a key, use it with other FusionAuth functionality, such as signing JSON Web Tokens or SAML Requests. This page describes the Admin UI for creating and managing signing keys.

    You can also manage keys via the Keys API. You may also be interested in rotating your keys.

    Create or Manage Keys

    Navigate to Settings → Key Master. Here you will see a list of keys and certificates.

    The default Key Master listing.

    From this page, you can add and import keys and certificates as well as view and remove keys. There are certain default keys that you cannot remove. See the FusionAuth limitations for more.

    Select the operation from the menu on the listing page.

    Importing vs Generating

    You can import keys and certificates. This is useful if you are integrating with an external system. For instance, you may be migrating from another auth system and want to import keys generated by that auth system to ensure anything signed with those keys will continue to work.

    You can generate keys as well. This is useful when FusionAuth is your system of record for such keys.

    Import RSA Key Pair

    Import a RSA key pair.

    Form Fields

    Id Optional

    When this value is omitted, a unique Id will be generated automatically.

    Name Required

    The name of the Key. This must be unique.

    Key Identifier Optional

    The Key identifier. This is used in JWT metadata and, if applicable, the JWKS endpoint, as the kid value. When this value is omitted, one will be generated.

    Algorithm Required

    The particular RSA algorithm used to generate the Key.

    Public key Required

    The PEM encoded public key to import.

    Private key Optional

    The PEM encoded private key to import. If the key is to be used for token validation only, this field may be omitted as only a public key is necessary.

    Import RSA Private Key

    Import a RSA private key.

    Form Fields

    Id Optional

    When this value is omitted, a unique Id will be generated automatically.

    Name Required

    The name of the Key. This must be unique.

    Key Identifier Optional

    The Key identifier. This is used in JWT metadata and, if applicable, the JWKS endpoint, as the kid value. When this value is omitted, one will be generated.

    Algorithm Required

    The particular RSA algorithm used to generate the Key.

    Private key Required

    The PEM encoded private key to import.

    Import Elliptic Curve Key Pair

    Import an ECC key pair.

    Form Fields

    Id Optional

    When this value is omitted, a unique Id will be generated automatically.

    Name Required

    The name of the Key. This must be unique.

    Key Identifier Optional

    The Key identifier. This is used in JWT metadata and, if applicable, the JWKS endpoint, as the kid value. When this value is omitted, one will be generated.

    Public key Required

    The PEM encoded public key to import.

    Private key Optional

    The PEM encoded private key to import. If the key is to be used for token validation only, this field may be omitted as only a public key is necessary.

    Import Elliptic Curve Private Key

    Import an ECC private key.

    Form Fields

    Id Optional

    When this value is omitted, a unique Id will be generated automatically.

    Name Required

    The name of the Key. This must be unique.

    Key Identifier Optional

    The Key identifier. This is used in JWT metadata and, if applicable, the JWKS endpoint, as the kid value. When this value is omitted, one will be generated.

    Private key Required

    The PEM encoded private key to import.

    Import HMAC Secret

    Import an HMAC secret.

    Form Fields

    Id Optional

    When this value is omitted, a unique Id will be generated automatically.

    Name Required

    The name of the Key. This must be unique.

    Key Identifier Optional

    The Key identifier. This is used in JWT metadata and, if applicable, the JWKS endpoint, as the kid value. When this value is omitted, one will be generated.

    Algorithm Required

    The particular HMAC algorithm used to generate the Key.

    Secret Required

    The HMAC secret to import.

    Import Public Key

    Import a public key.

    The type of the Key will be inferred from the PEM encoded value.

    Form Fields

    Id Optional

    When this value is omitted, a unique Id will be generated automatically.

    Name Required

    The name of the Key. This must be unique.

    Key Identifier Optional

    The Key identifier. This is used in JWT metadata and, if applicable, the JWKS endpoint, as the kid value. When this value is omitted, one will be generated.

    Public key Required

    The PEM encoded public key to import.

    Import Certificate

    Import a certificate.

    The public key will be extracted from the certificate.

    Form Fields

    Id Optional

    When this value is omitted, a unique Id will be generated automatically.

    Name Required

    The name of the Key. This must be unique.

    Key Identifier Optional

    The Key identifier. This is used in JWT metadata and, if applicable, the JWKS endpoint, as the kid value. When this value is omitted, one will be generated.

    Certificate Required

    The PEM encoded certificate to import.

    Generate RSA Key Pair

    Generate a RSA key pair.

    Form Fields

    Id Optional

    When this value is omitted, a unique Id will be generated automatically.

    Name Required

    The name of the Key. This must be unique.

    Issuer Optional

    This name will be used as the CN issuer and subject of the certificate and it cannot be modified once created. This is an optional parameter and if omitted a default issuer will be used.

    Algorithm Required

    The particular RSA algorithm used to generate the Key.

    Key length Required

    The length of the Key.

    Generate Elliptic Key Pair

    Generate an ECC key pair.

    Form Fields

    Id Optional

    When this value is omitted, a unique Id will be generated automatically.

    Name Required

    The name of the Key. This must be unique.

    Issuer Optional

    This name will be used as the CN issuer and subject of the certificate and it cannot be modified once created. This is an optional parameter and if omitted a default issuer will be used.

    Algorithm Required

    The particular ECC algorithm used to generate the Key.

    Generate HMAC Secret

    Generate an HMAC Secret.

    Form Fields

    Id Optional

    When this value is omitted, a unique Id will be generated automatically.

    Name Required

    The name of the Key. This must be unique.

    Algorithm Required

    The particular HMAC algorithm used to generate the Key.

    Limits On Updating Keys

    Only the name of the Key may be changed; all other fields will remain the same. If you need to update a Key with a new certificate, algorithm or other attributes, please Import a Key.

    For example, if you have a Key with an associated expiring certificate, you’ll need to follow the steps similar to those outlined in the JWT signing key rotation documentation:

    • Import this key, keypair or certificate into FusionAuth. This will create a new Key entity in FusionAuth.

    • Update the appropriate configuration with this new Key (JWT signing configuration, SAML validation configuration, etc).

    • Once the new Key is configured for use, remove the expired, previous Key.

    Note that validation rules will prevent you from removing an in-use key.

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