We can use any other option, this is just an example but I change them all the same way and it works!! M圜ameraControl.addCaptureRequestOptions(requestOptionsBuilder) I am using camera2 in my application and my friend is developing the same app for ios, the requires changing the request options for the camera like changing the lens position using: val requestOptionsBuilder = CaptureRequestOptions.Builder() I'm not familar with this part of code and realy don't understand.

If it is, for example, signature - than what is signedData ? I can retrive data which is signed as base45 encrypted JSON but can't understand what is that GeneratePublic(new X509EncodedKeySpec(DatatypeConverter.parseBase64Binary(publicKeyString))) PublicKey publicKey = KeyFactory.getInstance('RSA'). Code below i used to transform it to PublicKey String publicKeyString = 'base64PublicKey' SignatureInstance.update(signedData.getBytes('UTF-8')) īoolean result = signatureInstance.verify(signatureBytes) Signature signatureInstance = Signature.getInstance('SHA256withRSA', 'BC')

I found some code and can't understand some paramaters (maybe i wrong in all) byte signatureBytes = code(signature, Base64.DEFAULT) Main goal - verify data which i retrive from server. I am trying to verify signature which is signed base45 encrypted JSON passport data.

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