Inconsistent CTS check results

[Sawaba]

Skycure's security app alerted me that my Samsung Note 5 failed CTS check and therefore was suspected of having been tampered with. I downloaded Safetynet Helper and Cigital's Safetynet Playground for second opinions.

Cigital's app tells me everything is fine every time I run the test.

Safetynet Helper gives me seemingly random results. So far, the first result is always negative (CTS =false), but pressing it again results in CTS = true within 1-2 retestsAs I continue to retest, it continues jumping back and forth between true and false results.

[simonbuehler]

also have a cts mismatch and PoGo is working, who's to believe?

[robsmall]

In testing, I noticed back and forth results for Android N devices when Android N was in beta FWIW.

[scottyab]

I've updated the lib and the sample app in the playstore to use the latest version of safetyNet. Once the updated .apk has perticulated to your parts of the world @Sawaba @simonbuehler I'd be interested to hear if you get the same results.