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EETE FEBRUARY 2013

ficient protection from unwanted or unauthorized manipulation of the memory content. In order to provide the code and data in security-certified products with the best possible protection, the memory is also encrypted. The logistics chain is also a constituent of the certification process with appropriate security specifications, similarly to ROM products. Well thought-out error recording and error correction provides extremely good reliability with regard to the memory content. Depending on the use case data retention of up to 20 years can therefore be achieved. Scalable solutions A wide range of Solid Flash ICs of different product families (SLE 77, SLE 78, SLE 97) are available and are shipped as contact based, contactless (CL) and dual interface (DIF) products. The members of the SLE 77 family are designed for contact-based and contactless SDA and DDA payment product. The high performance 16-bit controllers, with excellent characteristics also in CL DIF products are available for mass-market applications with Flash memories of 80 to 240 KBytes, with appropriate EMVCo and common criteria certifications up to CC EAL5+ (high). The 16-bit controllers of the SLE 78 family with Solid Flash variants with up to 500 KBytes provide a simple migration path from the SLE 77, and are additionally equipped with the “Integrity Guard” digital security technology. This security technology includes a dual CPU implementation for error detection; encrypted calculation in the CPU, memory, bus and cache; Error Detection Codes (EDC) for all memories, Error Codes for cache protection and active I2 shielding protection. Thanks to Integrity Guard the security controllers are able to monitor the entire data path continuously by means of complete error detection. The SLE 78 security controllers have two CPUs, with which error detection is even possible during data processing. If the security controller detects an error or an attempted attack, it decides whether the computing operation is continued or an alarm is triggered and the computing operation is automatically aborted. The entire data path of a chip card controller is also encrypted. The encrypted calculation in both CPUs is a unique feature. The 32-bit controllers of the SLE 97 family provide a modular concept for high-end applications such as SWP based NFC and High-End SIM/ UIC, Mobile Payment and embedded security. The product family is based on the ARM SC300 architecture but is optimized to fit to the addressed security applications, e.g. with a cache and dedicated security features. Table 2: Comparison of security in encrypted ROM and encrypted Solid Flash. POWER Efficient SOLUTIONS from the wall to the point of load TM With a continuous focus on effi ciency, density, and system optimization, we keep our customers on the leading-edge of the power curve. www.cui.com/power 10W~468W Digital Power Modules Intermediate Bus l Point of Load 0.25W~600W Dc-Dc Converters Board Mount l Chassis Mount 1W~2400W Ac-Dc Power Supplies Open Frame l Chassis Mount l External www.electronics-eetimes.com Electronic Engineering Times Europe February 2013 33


EETE FEBRUARY 2013
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