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Atmel has announced its new 'Keen+' reference design for the development of secure 13.56MHz passive RFID close-proximity applications.
The AT88SC-ADK2 Keen+ development kit includes Atmel's Crypto Evaluation Studio tool suite, an application development board, CryptoRF samples in both tag and smart card form, a USB cable, and a quick start guide.
The suite has a menu-driven, graphical user interface for CryptoRF configuration and testing, plus development libraries and code examples for host-side cryptographic operations required for secure communication. The application development board includes Atmel's ISO/IEC 14443-B-compliant, AT88RF1354 host-reader chip; an Atmel AVR flash microcontroller; and USB connectivity to PC and power. Schematics and PCB layout are also included.
The AT88RF1354 host reader performs RF communication, packet formatting, decoding, and communication error checking and is based on the royalty-free, ISO/IEC 14443-2 Type B signal modulation scheme and ISO/IEC 14443-3 Type B frame format, used by 60% of the vendors of RFID host readers. Data is exchanged half duplex at a rate of 106kbits per second. A 2-byte CRC-B provides communication error detection.
The AT88RF1354 can be used with both RFID transponders or contactless smart cards and is compatible with 3.3V and 5V host microcontrollers with two-wire or SPI serial interfaces.
The integrated reader IC requires fewer external components than many other RFID reader chips, resulting in a bill of materials (BOM) in the US$2.00 range for a host reader based on this reference design. The AT88RF1354 is available in a 6mm x 6mm, 36-pin QFN. Package options include RFID tags, thinned wafers and modules for smart card applications.
The Keen+ kit also includes a free library of simple API calls that execute complex host operations, including building a software model of the host-side cryptographic engine, computing challenges, performing data encryption and decryption, computing encrypted passwords and message authentication codes, and keeping the host model of the cryptographic engine in synchrony with that in the device. The development library itself is delivered as a highly decoupled binary cryptographic core and a source code interface for easy integration. A two-wire interface connects the daughter board to any existing embedded development environment.
Source: Atmel Corporation
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