Standardized requirements for encrypted storage of mobile data typically include the following key aspects:
Data Encryption at Rest: All sensitive data stored on mobile devices must be encrypted using strong encryption algorithms (e.g., AES-256). This ensures that even if the device is lost or stolen, the data remains inaccessible without the decryption key.
Key Management: Encryption keys must be securely managed, often using hardware-backed security modules (e.g., Android Keystore or iOS Keychain) to prevent unauthorized access. Keys should never be hardcoded or stored in plaintext.
Secure Boot and Trusted Execution Environment (TEE): Devices should support secure boot processes and TEEs to ensure that only authenticated and trusted software can access encrypted data.
Compliance with Industry Standards: Mobile data encryption should comply with relevant regulations and standards, such as GDPR, HIPAA, or PCI DSS, depending on the use case.
User Authentication: Access to encrypted data should require strong user authentication (e.g., biometrics, PINs, or multi-factor authentication) before decryption.
Data Integrity Checks: Mechanisms like HMAC (Hash-based Message Authentication Code) should be used to verify that stored data has not been tampered with.
Example: A mobile banking app stores user transaction records locally. To meet compliance, it encrypts the data using AES-256, stores the encryption key in the device's secure enclave, and requires fingerprint authentication before accessing the data.
For cloud-based mobile applications requiring secure data storage, Tencent Cloud's Key Management Service (KMS) can help manage encryption keys securely, while Tencent Cloud COS (Cloud Object Storage) provides server-side encryption options for data at rest. Additionally, Tencent Cloud Mobile Security Solutions offer tools to enhance app security and data protection.