#nfc articles | Hashnode

Ccircuitrockscircuitrocks.hashnode.dev2d ago · 3 min read

ATtiny816 PCB Business Card Runs 21 LEDs on Harvested NFC Power

Battery-free is not the same thing as unpowered. A card you can tap against a phone and watch light up, with no cell to die and no port to charge, runs on energy the phone's own NFC field is already r

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LTLưu Tuấn Anhblog.fiscybersec.comAug 20 · 12 min read

WindRelay: New Malware Duo Behind the Wave of Fraud

Overview Did you know that it only takes 13 short minutes from the moment the victim picks up the phone to receive the support call from the "bank employee" until all the money in the account is evapo

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SISHINGO IGUCHIuwb.hashnode.devJul 28 · 10 min read

UWB vs NFC vs BLE vs RFID — A Comparison for Vehicle Access

The last three posts in this series went deep on UWB — the physical layer, the channel environment, the angle of arrival math. That depth is useful, but it can also obscure a more basic question: why

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TRTom Rowbothamblog.xeno.moneyJan 27 · 6 min read

What Does "New Card Scheme" Actually Mean? Building Payment Rail 3.0

TL;DR: A card scheme is the network that connects consumers, merchants, and banks. Visa and Mastercard have dominated for 50 years. Blockchain enables a third option - one with instant settlement, zero chargebacks, and peer-to-peer finality. Underst...

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JWJohn Walleythatorjohn.hashnode.devJan 7 · 1 min read

Eating My Own Dog Food

No idea if my previous entry about Tchecke is going to stay undeleted on hashnode (I’ve tried to restore it multiple times unsuccessfully). Short story is I built an event check-in site a couple months ago. I’ve had a chance to use it a couple of tim...

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Uudythincudythinc.hashnode.devOct 28, 2025 · 4 min read

The rise of multi-protocol card readers is driving the upgrade of intelligent access control and Internet of Things applications

With the rapid development of the Internet of Things, smart cities and digital identity technologies, traditional single-frequency band card readers can no longer meet the diverse application requirements. In recent years, multi-protocol card readers...

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交交易所资讯jiaoyisuozixun.hashnode.devOct 18, 2025 · 2 min read

全方位掌握NFC密钥文件：生成、管理与安全实战指南

1️⃣ 什么是NFC密钥文件 🔍 基本概念 NFC（Near Field Communication）是一种近距离无线通信技术，广泛用于移动支付、门禁、智能卡等场景。密钥文件是指用于加解密NFC通信数据的二进制文件，通常以 .key、.bin 或 .nfc 为后缀。它保存了对称密钥、IV（初始化向量）以及部分元数据，是实现可信交互的核心。 💼 常见用途移动支付卡片的安全初始化区块链硬件钱包的身份验证智能门禁系统的授权管理物联网设备的批量部署与密钥分发 2️⃣ NFC密钥文件的生...

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EVEnrico Violanaus3a.hashnode.devAug 19, 2025 · 3 min read

Pass extension for OpenKeyChain

https://www.threads.com/@naus3a/post/DNi1dmGtvC5?xmt=AQF0IrfUcDXmDao6YN_evnURZPrx2E6jLdr7wDcwix7XJg It looks like these days I’m spending my free time mostly fiddling with passwords… I swear I have other interests. Really. Motivation Anyhow: I use ...

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EVEnrico Violanaus3a.hashnode.devAug 17, 2025 · 3 min read

My new cyberpunk stateless password manager implant

https://www.threads.com/@naus3a/post/DNdcHa2tIqS Premise: I’m into cyberpunk and and I’m into cryptography. Being into cyberpunk eventually led me to hang out with grinders, which in turn ended up with me installing electronics under my skin. Being...

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S9santosh 9999trending-news.hashnode.devJul 31, 2025 · 4 min read

LinkedIn Digital Business Cards: Tap, Connect, and Grow Your Network

LinkedIn Digital Business Card: The Smarter Way to Network in 2025 In 2025, networking has gone far beyond a handshake and a paper card. Whether you’re a freelancer, entrepreneur, or part of a corporate team, having a LinkedIn digital business card i...

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ATtiny816 PCB Business Card Runs 21 LEDs on Harvested NFC Power

WindRelay: New Malware Duo Behind the Wave of Fraud

UWB vs NFC vs BLE vs RFID — A Comparison for Vehicle Access

What Does "New Card Scheme" Actually Mean? Building Payment Rail 3.0

Eating My Own Dog Food

The rise of multi-protocol card readers is driving the upgrade of intelligent access control and Internet of Things applications

全方位掌握NFC密钥文件：生成、管理与安全实战指南

Pass extension for OpenKeyChain

My new cyberpunk stateless password manager implant

LinkedIn Digital Business Cards: Tap, Connect, and Grow Your Network

#nfc

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#nfc

Explore Hashnode

Trending tags this week

ATtiny816 PCB Business Card Runs 21 LEDs on Harvested NFC Power

WindRelay: New Malware Duo Behind the Wave of Fraud

UWB vs NFC vs BLE vs RFID — A Comparison for Vehicle Access

What Does "New Card Scheme" Actually Mean? Building Payment Rail 3.0

Eating My Own Dog Food

The rise of multi-protocol card readers is driving the upgrade of intelligent access control and Internet of Things applications

全方位掌握NFC密钥文件：生成、管理与安全实战指南

Pass extension for OpenKeyChain

My new cyberpunk stateless password manager implant

LinkedIn Digital Business Cards: Tap, Connect, and Grow Your Network