To get the Security Card public key:

1. On the main screen of the application, click on the Surf icon in the upper-left corner.

2. Select Signatures.

3. Select the Security Card which public key you want to copy.

4. Select Show key.

5. Tap your Card to the smartphone camera.

6. Tap the address of the key. Surf will copy the address to the clipboard.

You can copy Cards keys and insert them into a text editor to following deploy a Multisig wallet.