Network_Security_in_Android.pdf

1. Network Security in Android
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4. Protecting your app from reverse engineering and man in the middle attacks
5. SSL certificate pinning Obfuscation with proguard
6. SSL Certificate pinning Why SSL Certificate pinning? to prevent man in the middle attack What is SSL? -Secure Socket Layer - its a protocol that has always been used to encrypt and secure transmitted data between server and client (website and browser).
7. SSL Certificate pinning What is ssl certificate pinning? is ensuring that any client SSL request first validates that the server’s certificate exactly matches the bundle’s certificate previously stored in the application.
8. SSL Certificate pinning
9. SSL Certificate pinning What steps do we need? • Obtaining a certificate for the desired host (preferably the whole certificate chain). • Pin the certificate to an instance of DefaultHttpClient
10. SSL Certificate pinning Get certificate public key from ssllabs This is the hashed public key of the certificate
11. SSL Certificate pinning
12. SSL Certificate pinning
13. SSL Certificate pinning - Failure
14. Obfuscation What? -is a process of creating source code in a form that is hard for human to understand. Why? To prevent reverse engineering To reduce your app size
15. 1. Configure your gradle file (app/gradle) 2. Use default android proguard rules or create your own 3. Edt your rules Obfuscation Steps
16. Obfuscated Code
17. Non-obfuscated code
18. Resources Proguard android ssl pinning practical proguard rules
19. Demo….!!!!!! Demo github link
20. Thank you !!