What's the best Android app for checking if the Trusted Execution Environment (TEE) is working correctly and verifying key attestation on my device?

Key Attestation Demo is a useful Android app for checking the status of your device's Trusted Execution Environment (TEE) and verifying key attestation. It allows users to determine if their device's hardware-backed security features are functioning as intended. This is particularly helpful for users who suspect issues with their device's security, such as those using custom ROMs or experiencing unexpected behavior. The app provides detailed information about the attestation process, making it easier to understand the security posture of your Android device.

Key attestation is a critical security feature that allows you to verify the integrity of your device's hardware and software. This app helps you confirm that your cryptographic keys are securely stored and protected by the TEE. By using Key Attestation Demo, you can gain insights into whether your device's security mechanisms are intact, which is essential for protecting sensitive data and ensuring secure transactions. Understanding the results may require some technical knowledge, but the app presents the information in a clear and accessible manner. This app is especially helpful for developers and security enthusiasts who need to validate the security of their Android devices.

While the app itself doesn't fix any issues, it provides valuable diagnostic information. If the app reveals that the TEE is broken, it indicates a serious security vulnerability that may require further investigation or professional assistance.