The CryptoKey.type read-only property that indicates the type of the key: if it is the key for a symmetric algorithm ("secret") or for an asymmetric algorithm ("public" or "private", depending of its purpose).
result = key.type
result is an enumerated value that can be: "secret" represents the unique key used for encrypting or decrypting a message using a symmetric algorithm."public" represents a publicly shareable key used in an asymmetric algorithm."private" represents a key used in an asymmetric algorithm that must be kept private.| Specification | Status | Comment |
|---|---|---|
| Web Cryptography API The definition of 'CryptoKey.type' in that specification. | Recommendation | Initial definition. |
| Desktop | ||||||
|---|---|---|---|---|---|---|
| Chrome | Edge | Firefox | Internet Explorer | Opera | Safari | |
| Basic support | 37 | 12 | 34 | No | ? | No |
| Mobile | |||||||
|---|---|---|---|---|---|---|---|
| Android webview | Chrome for Android | Edge Mobile | Firefox for Android | Opera for Android | iOS Safari | Samsung Internet | |
| Basic support | 37 | 37 | Yes | 34 | ? | No | Yes |
Crypto and Crypto.subtle.CryptoKey, the interface it belongs to.
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https://developer.mozilla.org/en-US/docs/Web/API/CryptoKey/type