With the continuous development of the Internet era, a large number of funds flow into the online transactions. Then some problems come, eg. the servers are attacked and damaged by numerous hackers every day, and the security of online funds is extremely vulnerable. To solve these problems, many currency encryption solutions have emerged, such as the hardware wallet application using the nRF52840 chip, which provides a solid security guarantee for currency transactions.

Secux V20 is a hardware wallet of encryption assets using nrf52840 chip, which is used to protect the private key and pin code that users need to perform the encrypted currency transaction safely.

Cryptocurrency investors use private keys to confirm the transaction through online transactions. General users are used to storing the private key and pin in software wallets. This form of wallet is very convenient, but it is very vulnerable to malicious attacks. If Secux V20 is used, the user's key will be stored and isolated in the security component chip with 5 + level authentication of CC eal. When a user wants to make a transaction, Secux V20 can use the BLE connection provided by nRF52840 SoC or pair it with a Bluetooth-equipped mobile phone, tablet, or PC through a USB connection cable. Nordic nRF52840 multiprotocol system on chip is an ultra-low power consumption and highly flexible single-chip solution. nRF52840 SoC is the only multi-protocol system on chip on the market that supports the coexistence of Bluetooth 5.0 and Thread and has the dynamic multi-protocol function of BLE and Thread.

The nRF52840 SoC USES a 32-bit 64MHz Arm® architecture ™ -m4f CPU, and is integrated with 1MB of flash memory and 256kB of RAM, providing sufficient space for storage operations.

nRF52840, with on-chip NFC™ -a tag support, opens up A whole new range of applications, such as NFC payments, that improve the user experience for existing BLE applications through out-of-band (OOB) pairing. By using NFC for OOB pairing, authentication information can be exchanged over an NFC link, simplifying the authentication pairing process between two bluetooth devices.

Based on this, nRF52840 modules may ultilize in a great deal of  IoT applications. RF-star popular Multi-protocol Modules RF-BM-ND05 and RF-BM-ND06 embeded nRF52840 chip are widely used in wearable devices with wireless payment functions, NFC payment, and customized applications. It is believed that nRF52840 modules will perform better in NFC applications.

If you are looking forward to know more about the nRF52840 modules or any wireless solutions, please kindly visit www.rfstariot.com or contact us at info@szrfstar.com.