Android:

Documentation:

    https://developer.android.com/training/app-links/index.html?hl=es

1) Generate assetlinks.json
2) Copy file to server_root/.well-known/assetlinks.json

iOS:

Documentation:

    * https://blog.branch.io/how-to-setup-universal-links-to-deep-link-on-apple-ios-9
    * https://developer.apple.com/library/ios/documentation/General/Conceptual/AppSearch/UniversalLinks.html

1) Generate apple-app-site-association.txt
2) Sign file with:
    
    openssl smime -sign -nodetach -in apple-app-site-association.txt -out apple-app-site-association -outform DER -inkey server.key -signer server.crt
3) Copy apple-app-site-association to server_root/apple-app-site-association
4) Serve file with content-type "application/pkcs7-mime":

    Nginx:

        location /apple-app-site-association {
          gzip_static on;
          default_type application/pkcs7-mime;
        }


Script:

	./sign-app-site-association.sh server.crt server.key apple-app-site-association.txt