Android security (keystore and network security config)

1. Security tips

   Secure communication, input validation, permissions and data storage guidance.

2. Android Keystore system

   Hardware-backed key generation, key purposes and user authentication binding.

3. Network security configuration

   Trust anchors, cleartext policy and certificate pinning in XML.

4. Cryptography

   Recommended algorithms, ciphers and key sizes.

5. Security risks

   Mobile risks aligned with the OWASP mobile top 10.

6. Protect data

   Storing data safely and encrypting sensitive data.

Each section links to the official page. Titles and summaries by Extra Credit; the docs belong to their authors.