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Android's hardware attestation API provides a much stronger form of attestation than the Play Integrity API with the ability to whitelist the keys of alternate operating systems. It also avoids an unnecessary dependency on Google Play services and Google's Play Integrity servers.

Remote attestation is a method by which a host (client) authenticates it's hardware and software configuration to a remote host (server). The goal of remote attestation is to enable a remote system (challenger) to determine the level of trust in the integrity of platform of another system (attestator).

Definitions: The process of providing a digital signature for a set of measurements securely stored in hardware, and then having the requester validate the signature and the set of measurements.

Setting SafetyNet attestation Log into the Admin Portal. Go to Policies & Configs > Policies. Select a security policy and click Edit. Alternatively, create a new security policy by clicking Add New > Security. Scroll down to the Android section. Select ?Require Google SafetyNet Attestation?.

This attestation provides assurance that the properties of the device (for example, the serial number) are legitimate (as attested to by the device's Secure Enclave and verified by Apple's servers) and not spoofed.

A software attestation is a trust mechanism that allows a verifier (i.e., a customer) to independently validate the integrity of something asserted by the provider (i.e., the vendor). For example, an attestation can verify that an application is not compromised by malicious code.

Trusted Server: Review nonce generation logic, and make sure it meets Play Integrity API requirements. Make sure the server code can distinguish between SafetyNet Attestation API responses and Play Integrity API responses. ... Add logic to validate and parse Play Integrity API responses.