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web api instance method

AuthenticatorAttestationResponse: getPublicKey() method

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Secure context

The getPublicKey() method of the AuthenticatorAttestationResponse interface returns an ArrayBuffer containing the DER SubjectPublicKeyInfo of the new credential (see Subject Public Key Info), or null if this is not available.

This is a convenience function, created to allow easy access to the public key. This key will need to be stored in order to verify future authentication operations (i.e., using navigator.credentials.get()).

Syntax

getPublicKey()

Parameters

None.

Return value

An ArrayBuffer containing the DER SubjectPublicKeyInfo of the new credential (see Subject Public Key Info), or null if this is not available.

Examples

See Creating a public key credential for a detailed example.

Specifications

SpecificationsStandards references are available on the canonical MDN page.

Browser compatibility

Browser compatibilityCompatibility data is available on the canonical MDN page.