General description

NTAG 224 DNA is an innovative security IC solution, compliant with NFC Type 2 Tag with

208 bytes of user memory. The technology uses multi-layered protection to support a

broad range of NFC-based applications that can be trusted to protect products, services

and IoT-driven user experiences.

NTAG 224 DNA IC comes with a Secure Unique NFC (SUN) message authentication.

The IC can automatically add its UID and incremental tap counter to the programmed

NDEF (NFC Data Exchange Format) message through ASCII mirroring, and uses an

AES-128 key to secure the message with a cryptographic message authentication

code (CMAC ). The SUN functionality supports advanced protection to verify a tag’s

authenticity and integrity, whilst also enabling secured unique user experiences served

in real time. The IC uses AES-128 cryptography and is Common Criteria EAL3+

(AVA.VAN.2) certified.

NTAG 224 DNA also offers a 3-pass Mutual authentication with an AES-128 key,

ensuring that only an authorized reader can access tag data. This advanced two-way

authentication scheme can protect sensitive data against unauthorized access and/or a

malicious change attempt.

NTAG 224 DNA also features in addition an ECC-based originality signature to assure

tag origin. The originality signature can be further customized and permanently locked

during tag initialization.

The NTAG 224 DNA is compliant with NFC Forum Type 2 Tag (Ref. 1) and ISO/

IEC14443 Type A part 1 to 3 (Ref. 2).

Features and benefits

• Contactless transmission of data and supply energy

• Operating frequency of 13.56 MHz

• Data transfer of 106 kbit/s

• Data integrity of 16-bit CRC, parity, bit coding, bit counting

• Operating distance up to 100 mm (depending on various parameters as, e.g., field

strength and antenna geometry)

• 7-byte serial number (cascade level 2 according to ISO/IEC 14443-3)

• Automatic NFC counter triggered at the first read command after a reset

• Secure Unique NFC (SUN) message authentication feature implemented via ASCII

mirroring of the UID, NFC counter and CMAC into the NDEF message in the user

memory, which changes on every readout after a reset

• 3-pass mutual Authentication with AES-128 with 128-bit key length

• ECC-based originality signature, offering the option to customize and permanently lock

the signature

• Fast read command

• True anti-collision

• 50 pF input capacitance

Applications

• Advanced anti-counterfeiting protection

Reliably verify authenticity of physical goods anytime, anywhere, using a mobile NFC

device. Also consider automated authentication of tagged consumables in embedded

devices.

• Improved supply chain visibility and control

Visibly help track products along the supply chain, and reduce grey market diversion.

Enable more transparent and secure supply chains, e.g. with unique content, tailored

services or exclusive privileges loyalty rewards.

• Augmented user experiences

Use product opening status to prompt targeted messages, e.g. pre-/post-retail. Evolve

the user experience by engaging with greater personalization, e.g. with unique content,

tailored services or exclusive privileges.

• Proof of presence

Provide trusted proof that a person was at a given location at specific times, allowing

proof of servicing or visiting times, and other time/location-based events.