{"product_id":"ntag-424-dna-nfc-blank-card-aes-128-sun","title":"NTAG 424 DNA NFC Blank Card | AES-128 SUN Encryption | 85.5x54mm","description":"\u003ch2 id=\"advanced-cryptographic-security-with-aes-128\" class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eAdvanced Cryptographic Security with AES-128\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eThis smart card utilizes AES-128 encryption to generate a Secure Unique NFC (SUN) message upon every tap. Unlike standard static NFC tags that can be easily cloned, the NTAG 424 DNA chip dynamically generates a unique, encrypted authentication code (CMAC) appended to the NDEF URL. When tapped by an NFC-enabled mobile device, the backend server verifies this dynamic code in real-time, making it impossible for counterfeiters to copy or replay the tag's data.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 id=\"standardized-nfc-forum-type-4-compliance\" class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eStandardized NFC Forum Type 4 Compliance\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eThe NTAG 424 DNA chip is fully compliant with ISO\/IEC 14443-4 and ISO\/IEC 7816-4 standards, ensuring maximum interoperability with existing NFC infrastructure. It features a file-based storage structure with a total capacity of 416 bytes, which is formatted according to NFC Forum Type 4 specifications. With a reading distance of up to 10cm, it provides a seamless and responsive user experience for access control and product identification.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2 id=\"privacy-protection-and-random-id-support\" class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003ePrivacy Protection and Random ID Support\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eTo protect user privacy and prevent unauthorized tracking, this chip supports Random ID and encrypted UID\/data mirroring within the NDEF file. It features five customer-defined AES keys that enable advanced cryptographic functions, including mutual authentication between the secure host\/reader and the card. This ensures that sensitive NDEF files and extra data files remain strictly protected against unauthorized access.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch3 id=\"technician-tip\" class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eTechnician Tip\u003c\/span\u003e\u003c\/h3\u003e\n\u003cp class=\"ng-star-inserted\"\u003e\u003cspan class=\"ng-star-inserted\"\u003eWhen programming the SUN feature, ensure your backend server is properly configured to decrypt and authenticate the dynamic AES-128 CMAC appended to the URL. Because the authentication mechanism relies on standard NDEF URLs, end-users can verify the card's authenticity using native NFC reading capabilities on Android and iOS 11+ devices—no custom application is required. The standard CR80 size (85.5x54mm) PVC surface is fully compatible with thermal ID card printers, allowing you to print custom employee badges or brand designs easily.\u003c\/span\u003e\u003c\/p\u003e","brand":"Sun Cheong Computer Company Limited","offers":[{"title":"Default Title","offer_id":68165682135191,"sku":"21ST000630","price":10.0,"currency_code":"HKD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0440\/4022\/4919\/files\/ntag-424-dna-aes-128-smart-card-front.jpg?v=1793095922","url":"https:\/\/scccltd.com\/products\/ntag-424-dna-nfc-blank-card-aes-128-sun","provider":"Sun Cheong Computer Company Limited","version":"1.0","type":"link"}