Samsung seeks a U.S. patent for crypto wallets that keep private keys off wearables and appliances

A device in Samsung's design identifies itself with an assigned address and authentication details. The contract compares them with what it already stores before it processes a transfer ^[6]. Samsung said this lets a device start a transaction without supplying a blockchain address and a signature generated from a private key ^[13]. The key stays in the system. According to crypto.news, the final transaction may still rely on the smart contract's own address and private key, while the device making the request never needs to hold or use it ^[7].

The patent argues against two existing models. In self-custody, a lost key can lock a user out of the funds, and a leaked one hands control to someone else ^[11]. Leaving that information with a service provider carries its own risk if the provider is hacked or stops operating ^[12]. The design answers the first complaint for each device. Whether it answers the second depends on who controls the contract's key, and the report does not say.

One outcome is that the application stays on file as a claim on a design Samsung never ships. Another is the Galaxy software, where Samsung Blockchain Wallet and Blockchain Keystore have run for several years and an earlier Ledger integration let users manage hardware-wallet assets from the phone ^[14]. The third would start with the wearables and home appliances the filing lists alongside smartphones and computers ^[4]. Under this design those devices would never need to store a key ^[1].

I'd expect the Galaxy route first, because the wallet software is already there, though that is an inference from Samsung's past products. In my view the design concentrates key risk in the contract's key. A Samsung release that put that key under the user's sole control would prove that wrong.

The application became public 132 days after it was filed ^[15]. It then sat in the public record another 75 days before the Oct. 6 Digital Asset report that crypto.news cites ^[16][3].