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The SafetyNet Attestation API provides a cryptographically-signed attestation, assessing the device's integrity. In order to create the attestation, the API examines the device's software and hardware environment, looking for integrity issues, and comparing it with the reference data for approved Android devices.

To remedy this, Keymaster introduced key attestation in Android 7.0 (Keymaster 2) and ID attestation in Android 8.0 (Keymaster 3). Key attestation aims to provide a way to strongly determine if an asymmetric key pair is hardware-backed, what the properties of the key are, and what constraints are applied to its usage.

An official verification of something as true or authentic (Merriam-Webster). In the Authentifier process, attestation refers to the notarial certification of documents. However, the word attestation is commonly used in the UAE and Qatar interchangeably with the term 'authentication'.

Attestation, also called consular Attestation, refers to a consular practice ensuring authenticity of the very last signature or the seal affixed to a document related to the application from a natural person, legal person or other organization.

It may also be called, certification or getting a document apostilled. The most common, and arguably correct term, is legalisation. Documents are legalised for use in another country when the apostille has been attached. For clarity, attestation is by definition the confirmation of correctness.

TPM key attestation is the ability of the entity requesting a certificate to cryptographically prove to a CA that the RSA key in the certificate request is protected by either "a" or "the" TPM that the CA trusts.

Attestation is the act of witnessing the signing of a formal document and then also signing it to verify that it was properly signed by those bound by its contents. Attestation is a legal acknowledgment of the authenticity of a document and a verification that proper processes were followed.