Secure context
This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.
The Crypto.subtle read-only property returns a SubtleCrypto which can then be used to perform low-level cryptographic operations.
Syntax
var crypto = crypto.subtle;
Value
A SubtleCrypto object you can use to interact with the Web Crypto API's low-level cryptography features.
Specifications
| Specification | Status | Comment |
|---|---|---|
| Web Cryptography API The definition of 'Crypto.subtle' in that specification. |
Recommendation | Initial definition. |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
| Desktop | Mobile | |||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
subtle | Chrome Full support 37 | Edge Full support 12 | Firefox
Full support
34
| IE Partial support 11 | Opera Full support 24 | Safari
Full support
10.1
| WebView Android Full support 37 | Chrome Android Full support 37 | Firefox Android
Full support
34
| Opera Android Full support 24 | Safari iOS
Full support
10.3
| Samsung Internet Android Full support 3.0 |
| Secure context required | Chrome Full support 60 | Edge Full support 79 | Firefox Full support 75 | IE No support No | Opera Full support 47 | Safari No support No | WebView Android Full support 60 | Chrome Android Full support 60 | Firefox Android No support No | Opera Android Full support 47 | Safari iOS No support No | Samsung Internet Android No support No |
Legend
- Full support
- Full support
- Partial support
- Partial support
- No support
- No support
- Experimental. Expect behavior to change in the future.
- Experimental. Expect behavior to change in the future.
- User must explicitly enable this feature.
- User must explicitly enable this feature.
- Requires a vendor prefix or different name for use.
- Requires a vendor prefix or different name for use.