VKX explores launching its own Hardware Wallet

VKX explores launching its own Hardware Wallet

VKX is studying a proprietary hardware wallet, separating the connection logic (app/phone) from key custody (physical device). Today the app is a "hot wallet"; the concept is to also turn it into the interface of a "cold wallet".

The architecture

The principle: the private key NEVER leaves the physical device.

• VKX App (interface): builds the transaction (unsigned), shows balances and connects to the blockchain.
• VKX Hard (device): stores the seed, receives the raw transaction, shows it on screen, asks for physical confirmation and returns the signature.

Prototype hardware (MVP)

• Microcontroller: ESP32 or STM32.
• Display: OLED 0.96" to verify address and amount (avoids "clipboard" attacks).
• Buttons: confirm / cancel.
• Secure chip: Secure Element (e.g. ATECC608A) to store the key.

Transaction flow

• In the app you enter address and amount and tap send (the app only prepares the data).
• The app sends the data via Bluetooth to the device.
• The device shows "send X to 0x..." and you confirm with the physical button.
• The device signs internally and returns only the signature for the app to broadcast.

Maximum security is when hardware validates what software proposes. Learn about VKX Wallet: https://vkinha.com/download