![Client Assertion Contains Invalid Signature Client Assertion Contains Invalid Signature](https://present5.com/presentation/c5742dc0d2a9c76a3ccb742a2aa11cd7/image-73.jpg)
- Client Assertion Contains Invalid Signature how to#
- Client Assertion Contains Invalid Signature android#
- Client Assertion Contains Invalid Signature verification#
- Client Assertion Contains Invalid Signature code#
Replace the "AuthKey_123ABC456.p8" with your private key file name, and replace "AuthKey_123ABC456_public" with the file name you want to use for the exported public key. p8 private key.Īnd run this command : openssl ec -in AuthKey_123ABC456.p8 -pubout -out AuthKey_123ABC456_public.p8 p8 private key, open Terminal app, and navigate (cd) to the directory containing your.
Client Assertion Contains Invalid Signature verification#
p8 private key, and decrypt the signature using the public key, and check if the decrypted SHA-256 hash matches the SHA-256 hash generated from hashing the header and payload.įortunately has built in signature verification function, we can just paste the public key in and it will verify it for us, so we only need to generate the public key. To check if the signature generated is correct, we can generate a public key from the. Here's a simplified diagram on how the signature is generated : Your JWT signature is the last part of the JWT string : (Ruby, PHP, Python and NodeJS)ĭownload Practical Sign in with Apple sample chapter (pdf) Is your JWT signature correct?
Client Assertion Contains Invalid Signature code#
Get sample chapters of Practical Sign in with Apple.įollow a complete step by step guide with code samples on implementing Sign in with Apple.
Client Assertion Contains Invalid Signature how to#
If you are using authorization code or access token gotten from Apple's auth website redirect, this field should equal to your Services ID's identifier.ĭon't have a clear picture on how to implement Sign in with Apple? If you are using authorization code or access token gotten from iOS app, this field should equal to your iOS app bundle ID. This should equal to the client_id value you used in the HTTP POST request. " aud" means the intended audience for this JWT, as we are sending this JWT to Apple's AppleID server, the value of this should always equal to " " This should be in number value, not enclosed in String, (ie: exp: 1587204602, instead of exp: "1587204602") The maximum acceptable value for this field is current time's timestamp + 15777000 seconds (6 months in the future), usually I set it to 10 minutes from current time's timestamp ( eg: _i + 600 seconds ). You should set a future time in UNIX timestamp in seconds (not milliseconds) for this field. " exp" means the expiry time for this JWT, which the JWT will become invalid after this time. If you are using Java, remember to convert this to seconds (instead of using milliseconds).
![Client Assertion Contains Invalid Signature Client Assertion Contains Invalid Signature](http://i.stack.imgur.com/fCGbj.png)
" iat" means the time when this JWT was issued (created), this value should equal to the UNIX timestamp in seconds (not milliseconds) when your server generated the JWT.
![Client Assertion Contains Invalid Signature Client Assertion Contains Invalid Signature](https://www.itsfullofstars.de/wp-content/uploads/2020/04/word-image-79-1536x645.png)
" iss" means issuer of this JWT, which is you or your company, this value should equal to your Team ID as shown in the Apple developer portal membership section : Your JWT payload should only contain " iss", " iat", " exp", " aud" and " sub" field. Does your JWT payload contains all the required parameters, correctly? The " alg" value should equal to " ES256", as Apple's server expect your JWT to be signed using Elliptive Curve Digital Signature Algorithm using P-256 and SHA-256. p8 key file should have the filename like "AuthKey_ ABCDEF.p8", the ABCDEF part is your Key ID. If you don't have access to Apple developer portal, your. p8 key file generated in the Apple developer portal, with Sign in with Apple capability. The " kid" value should equal to your key ID, which is the. Your JWT header should contain " kid" and " alg" field. Paste in your JWT string into the "encoded" section of this JWT debugger ( ) Does your JWT header contains all the required parameters?
Client Assertion Contains Invalid Signature android#
If the authorization codes comes from your website / Android app (Apple redirect URI), the client_id should be your Services ID identifier. If the authorization code comes from your iOS app, the client_id should be your iOS app bundle identifier. Are you using the correct client_id in your HTTP request? We will be using this online JWT debugger ( ) to debug and verify JWT. If you are confident that your JWT payloads and HTTP request are correct, you can jump to section 4 directly. We will walk through each of these below and how to fix them.