The CryptoKey.algorithm read-only property is an opaque value containing all the information about the algorithm related to the key.

Different implementations have different kind of opaque value for these: such an object can't be shared.


result = key.algorithm

Return value

  • result is an opaque object describing the algorithm the key relates to.


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

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidEdge MobileFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
Basic supportChrome Full support 37Edge Full support 12Firefox Full support 34IE No support NoOpera ? Safari No support NoWebView Android Full support 37Chrome Android Full support 37Edge Mobile Full support YesFirefox Android Full support 34Opera Android ? Safari iOS No support NoSamsung Internet Android Full support Yes


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See also

Document Tags and Contributors

Contributors to this page: fscholz, erikadoyle, teoli
Last updated by: fscholz,