Display Number Attestation For Free

Key Attestation is a feature which allows developers to analyze the security of the cryptographic material managed by Android Keystore.

ID attestation allows the device to provide proof of its hardware identifiers, such as serial number or IMEI.

Key attestation verifies the extension data that appears in the first certificate within the chain in a device's hardware-backed keystore. The certificate stores the information ing to an ASN.1 schema.

Attestation is a kind of testimony or confirmation. It is customary to sign a deed, make a will or sign other written documents in the presence of a witness who also signs the document to attest to its contents and the authenticity of the party's signature.

The Android Keystore system lets you store cryptographic keys in a container to make them more difficult to extract from the device. Once keys are in the keystore, you can use them for cryptographic operations, with the key material remaining non-exportable.

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.

Keymaster TA (trusted application) is the software running in a secure context, most often in TrustZone on an ARM SoC, that provides all of the secure Keystore operations, has access to the raw key material, validates all of the access control conditions on keys, etc.

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.

Definition of attestation 1 : an act or instance of attesting something: such as. a : a proving of the existence of something through evidence ? a complete and formal attestation of your innocence.? Edward Bulwer-Lytton. b : an official verification of something as true or authentic the notary's attestation of the will.

Attestation. In a STIR/SHAKEN call, the originating service provider signs (or attests) to their relationship with the caller and their right to use the calling number.