[Home](./index.md) > [@digitalpersona/enrollment](./enrollment.md) > [TimeOtpEnroll](./enrollment.timeotpenroll.md) > [createKeyUri](./enrollment.timeotpenroll.createkeyuri.md) ## TimeOtpEnroll.createKeyUri() method Converts a secret key to a Key URI, which will be encode as a QR Code image to scan. Signature: ```typescript createKeyUri(key: Uint8Array): Promise; ``` ## Parameters | Parameter | Type | Description | | --- | --- | --- | | key | Uint8Array | a secret key to convert to a Key URI string. | Returns: `Promise` - a promise to return a Key URI string ## Remarks For Push Notifications fo AD users, make sure the user's token has an `ad_guid` claim. You may need to use `ClaimsService.GetClaims()` method to append this claim to an existing token.