[NEW] Support client certificates for SSL (two-way authentication) (Android)

[djorkaeffalexandre]

Proposed changes

Implements TLS Client/mutual authentication with Certificate Pinning to Android devices.

Issue(s)

Close #1711

How to test or reproduce

Pin a certificate and connect to a server protected by a client ssl certificate.

• Websocket
• REST
• Images
• FastImage
• WebView
• RNFetchBlob
  This list consider what is implemented on iOS
• Audio
• Video

Screenshots

Types of changes

• Bugfix (non-breaking change which fixes an issue)
• Improvement (non-breaking change which improves a current function)
• New feature (non-breaking change which adds functionality)
• Documentation update (if none of the other choices apply)

Checklist

• I have read the CONTRIBUTING doc
• I have signed the CLA
• Lint and unit tests pass locally with my changes
• I have added tests that prove my fix is effective or that my feature works (if applicable)
• I have added necessary documentation (if applicable)
• Any dependent changes have been merged and published in downstream modules

Further comments

Let's move changes of react-native and react-native-fast-image to our own forks.

[C1ean]

What about iOS app and 2FA with SSL support?

[diegolmello]

@C1ean iOS has this feature since last year.

2FA with SSL support

Can you give us more details on a new issue?
Is it a feature request for the main repo?

[jangaraj]

IMHO this PR breaks SSO auth, where used IDP offers also optional mutual TLS authentication. I don't have any cert on my Android device and white SSO login page is generated (there is IDP login form in the previous app version). Do you have any recommendation how to investigate this from the user point of view?

[diegolmello]

@jangaraj Can you open a new issue with detailed information?