JCB and Keychain Implement Offline Payments using NFC

JCB and Keychain Implement Offline Payments using NFC

TOKYO, Dec 15, 2021 – (JCN Newswire) – JCB Co., Ltd. Japan’s only global payment brand name (Head Workplace: Tokyo, Japan) and Keychain GK (Head Workplace: Singapore) carry out offline payments utilizing near-field interaction (NFC), self-sovereign identity, and blockchain innovation.

Figure 1. Offline Payment Idea

With the spread of 5G and the advancement of Web of Things (IoT) gadgets, machine-to-machine payments will immediately perform agreements and pay without human intervention, and potentially without network connection.

JCB and Keychain have actually established the very first payment facilities for machine-to-machine deals that supports offline payments utilizing NFC. Leveraging Keychain’s blockchain and self-sovereign identity innovation, the system addresses difficulties connected to the dangers of running through network failures and dispersed attacks.


The brand-new facilities permits payments to be conditionally accepted by merchants, even in case both the payer and the merchant are detached from the network, a situation called double offline. Especially, the consumers’ experience is as simple as swiping a wise watch at the shop payment terminal with this system.

Under the cooperation with JCB, Keychain executed the payment processing system utilizing IoT gadgets, smart phones, and smartwatches, and showed the following:

1. Payments might be conditionally processed even throughout a double-offline situation.

2. Payment processing agreement might be done over combined networks at the same time.

3. Upon network remediation, the offline deals might be firmly repatriated to online in batches.

The system utilizes NFC network procedure and leverages Keychain Core to support little IoT gadgets with, in concept, just 32 megabytes of memory.

Figure 1. Offline Payment Idea

About Keychain Core

Keychain Core is Keychain’s acclaimed option accelerator that brings the power of blockchain and dispersed journal innovation to the typical software application advancement group consisting of self-sovereign identity, information security, and agreement on a vast array of gadgets, information, and networks.

About JCB

JCB is a significant international payment brand name and a leading charge card provider and acquirer in Japan. JCB introduced its card organization in Japan in 1961 and started broadening worldwide in1981 Its approval network consists of about 36 million merchants worldwide. JCB Cards are provided primarily in Asian nations and areas, with more than 140 million cardmembers. As part of its global development method, JCB has actually formed alliances with numerous leading banks and banks internationally to increase its merchant protection and cardmember base. As a thorough payment option supplier, JCB dedicates to offering responsive and top quality product and services to all consumers worldwide. For additional information, please check out:

About Keychain

The digital improvement we require today is impeded by the lack of essential abilities– information security, crucial management, and self-sovereign identity. Keychain provides these abilities in the kind of software application foundation, making it possible for daily advancement groups to strengthen functional stability, produce digital possessions, and find brand-new patterns of organization– with any information, on any gadget, throughout the world.

Contact info from reporters concerning this matter


Ayaka Nakajima

Corporate Communications

Tel: 81 -3-5778-8353




Source: JCB

Sectors: Cards & Payments, Cloud & Business, CyberSecurity, Crypto, Exchange, Blockchain, Innovation, Banking & Insurance Coverage, FinTech, NFTs

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