Crypto Wallet to Replace Private Keys With Encrypted QR Codes ByNikhilesh DePRO INVESTOR Updated: 20 August 2021 DisclosureWe sometimes use affiliate links in our content, when clicking on those we might receive a commission – at no extra cost to you. By using this website you agree to our terms and conditions and privacy policy. Decentralized crypto wallet SafeWallet is launching a new QR code-based user identification system to replace mnemonic phrases and private keys.