CryptoKey

The CryptoKey interface represents a cryptographic key derived from a specific key algorithm.

A CryptoKey object can be obtained using SubtleCrypto.generateKey(), SubtleCrypto.deriveKey() or SubtleCrypto.importKey()

Properties

This interface doesn't inherit any property.

CryptoKey.type

Returns an enumerated value representing the type of the key, a secret key (for symmetric algorithm), a public or a private key (for an asymmetric algorithm)

CryptoKey.extractable

Returns a Boolean indicating if the raw information may be exported to the application or not.

CryptoKey.algorithm

Returns an opaque object representing a particular cipher the key has to be used with.

CryptoKey.usages

Returns an array of enumerated values indicating what the key can be used for.

Methods

This interface neither inherits, nor implements, any method.

Specifications

Specification	Status	Comment
Web Cryptography API The definition of 'CryptoKey' in that specification.	Candidate Recommendation	Initial definition.

Browser compatibility

See also

• Crypto and Crypto.subtle.