[FEATURE] Samsung TV Plus support

[ggkameleon]

Phone : Samsung Galaxy S23 SM S911B Android 14 OneUi 6.1

Magisk Canary R6687BB53 knoxpatch 0.7.5

The mistake when I want to use the App Samsung TV Plus have a message your device is Root can't use the App.

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[ggkameleon]

I send log on xda thread. I don't know how do it here. Thanks

[salvogiangri]

Looks like Samsung did put some effort in this app security checks. The app uses key attestation to verify the device integrity, and is able to check whether or not to use Google or Samsung attestation by checking if it's supported via the ro.security.keystore.keytype prop:

The issue is the attest key is not verified by the app itself, but instead it gets sent via a POST request to a remote API specific for this app:

By disabling SAK support and using TrickyStore to generate a valid spoofed attest key I was able to bypass the security checks in the app, but of course we need a way to add a working hook in the module.

[ggkameleon]

Hi ! Ok I understand and thanks for response.
If you can great but if to hard work for make it it's not a mistake I watch another tv.
Have a good day thank you

[ggkameleon]

Looks like Samsung did put some effort in this app security checks. The app uses key attestation to verify the device integrity, and is able to check whether or not to use Google or Samsung attestation by checking if it's supported via the ro.security.keystore.keytype prop:

The issue is the attest key is not verified by the app itself, but instead it gets sent via a POST request to a remote API specific for this app:

By disabling SAK support and using TrickyStore to generate a valid spoofed attest key I was able to bypass the security checks in the app, but of course we need a way to add a working hook in the module.

Hello, I am not a professional but I am interested and curious.

Do you have any links or tuto to help me for make same as you ?
I Have installed "TrickyStore" and I would look on Xda & Google how to generate a valid key.
But I didn't find anything about "disabling SAK support" ?

I have installed the latest firmware and updated all mods, but same for Samsung Tv plus.

Otherwise I found a solution :

Activate airplane mode Next Open the App and Wait for the message "try again or network settings" Then Disable airplane mode and click on "try again" it works 👍.

Have a good day