The SubtleCrypto.verify() method returns a Promise of a Boolean value indicating if the signature given as parameter matches the text, algorithm and key also given as parameters.
Syntax
var result = crypto.subtle.verify(algo, key, signature, text2verify);
Parameters
signatureis aArrayBufferor anArrayBufferViewcontaining the signature to verify.text2verifyis aArrayBufferor anArrayBufferViewcontaining the data whose signature as to be verified.keyis aCryptoKeycontaining the key to be used to verify the signature. It is the secret key for a symmetric algorithm and the public key for an asymmetric algorithm.algois aDOMStringdefining the signature function to use. Supported values are:HMAC,RSASSA-PKCS1-v1_5, andECDSA.
Return value
resultis aPromisethat returns aBooleanindicating if the signature has been a success on success.
Exceptions
The promise is rejected when the following exception is encountered:
InvalidAccessErrorwhen the encryption key is not a key for the requested verifying algorithm or when trying to use an algorithm that is either unknown or isn't suitable for a verify operation.
Specifications
| Specification | Status | Comment |
|---|---|---|
| Web Cryptography API The definition of 'SubtleCrypto.verify()' 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.
| Feature | Chrome | Edge | Firefox | Internet Explorer | Opera | Safari |
|---|---|---|---|---|---|---|
| Basic support | 37 | 12 | 34 32 — 341 | 112 | 24 | 7 |
| Feature | Android webview | Chrome for Android | Edge mobile | Firefox for Android | Opera Android | iOS Safari | Samsung Internet |
|---|---|---|---|---|---|---|---|
| Basic support | 37 | 37 | 12 | 34 32 — 341 | 24 | 7 | 6.0 |
1. From version 32 until version 34 (exclusive): this feature is behind the dom.webcrypto.enabled preference (needs to be set to true). To change preferences in Firefox, visit about:config.
2. Returns CryptoOperation instead of Promise
See also
CryptoandCrypto.subtle.SubtleCrypto, the interface it belongs to.