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Parity-Signer-Mobile-App.md

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Parity Signer Mobile App

What is it?

Parity Signer Mobile App is a secure air-gapped wallet that allows users to use a smartphone as cold storage. It means that, once the App has been installed, users can create Ethereum accounts, sign transactions and transfer funds from and to these accounts without any sort of connectivity enabled on the device. Wifi, Mobile Network, Bluetooth can be shut down and even removed physically to ensure that the mobile phone containing these accounts will not be exposed to any online threat.

Any data transfer from or to the App will happen using QR code scanning. By doing so, the most sensitive piece of information, the private keys, will never leave the phone. The Parity Signer Mobile App can be used to store any Ethereum account, this includes ETH, ETC as well as Ether from various testnets (Kovan, Ropsten...).

How to get it and use it?

Device security

Parity Signer Mobile App is built to be used offline. The mobile device used to run the App will hold important information that needs to be kept securely stored. It is therefore advised to :

  • Get a separate mobile device.
  • Make a factory reset.
  • Enable full-disk encryption on the device, with a reasonable password (might not be on by default, for example for older Android devices).
  • Do not use any kind of biometrics such as fingerprint or face recognition for device decryption/unlocking.
  • Once the App has been installed, enable airplane mode and make sure to switch off Wifi, Bluetooth or any connection ability of the device.

Install the App

The App is available in beta for Android and iOs :

Please double check carefully the origin of the App, and make sure that the company distributing it is Parity Technologies. Usual security advice apply to this air-gapped wallet:

  • When creating an account using Parity Signer Mobile App, make sure to write down the recovery phrase and store it in safe places.
  • Always double check the information of the transactions you are about to sign or send.
  • Make sure to first transfer a small amount of Ether with the App and verify that everything is working as expected before transferring larger amounts of Ether.

Follow the tutorial using Parity Wallet or the tutorial using MyCrypto that will walk you through the creation of an account using the App and show you how to send funds from an air-gapped Ethereum account using Parity Wallet or MyCrypto.com.

What data does it collect?

None, it's as simple as that. Parity Signer Mobile Android and iOs App does not send any sort of data to Parity Technologies or any partner and works completely offline once installed.