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Questions - devicecheck

Understanding Firebase App Check rejection

My project use Firebase App check on iOS using DeviceCheck & App Test, cloud functions have enforcement checking wether auth context.app is undefined or not, simply like: if (appCheckEnabled == tr...
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ffdev

firebase

integrity

firebase-app-check

safetynet

devicecheck

Votes: 0

Answers: 0

Not able to verify the validity of X509Certificate using Apples App attest root certificate

All I am able to do is validate the generated X509Certificate using its method checkValidity(), but as per the steps mentioned in https://developer.apple.com/documentation/devicecheck/validating_apps_...
test-img

Sandip Nepal

ssl

ssl-certificate

x509certificate

x509

devicecheck

Votes: 0

Answers: 1

Latest Answer

This app attest step is to verify the certificate chain. You will get 2 certificates in attestation request i.e. under x5c[0], x5c[1]. These are leaf and intermediate certificates. To verify the certi...
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devilKing

I am trying to decode and extract octet string from the extension of X509Certificate, but I did not get any valid string

I have been trying to decode the octet string as per steps mentioned in https://developer.apple.com/documentation/devicecheck/validating_apps_that_connect_to_your_server?language=objc Here is what I h...
test-img

Sandip Nepal

x509certificate

x509

der

asn.1

devicecheck

Votes: 0

Answers: 2

Latest Answer

"Octet string" is just a spec phrase that modern languages call "byte array". You've extracted the value as of octs, and should compare that value to whatever nonce you're suppose...
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bartonjs

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