Authentication chip with MIPI BIF standard interface

Authentication chip with MIPI BIF standard interface

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By eeNews Europe

The standardization facilitates the development of intelligent batteries that authenticate and constantly monitor and report important battery parameters, such as temperature. This helps to enhance user’s protection from potentially dangerous counterfeit batteries in mobile devices such as smart phones or tablet computers. The mobile device for example will only operate with advanced features like fast charging, if the ORIGA2 chip authenticates the battery as an original product. The chip is also suitable for printer cartridges, replacement parts, medical disposables, network components or accessories such as earphones, speakers, docking stations and chargers. Increased key length and other features further increase the security of Infineon’s ORIGA2 solution. In addition, the ORIGA digital certificate feature enables the provision of chip-individual keys. The IC uses asymmetric authentication based on elliptic curve cryptography (ECC), with a public key on the host side, in the mobile phone for instance, and a private key on the battery side, which is protected in the ORIGA chip. This provides improved security at reduced system cost because on the host side the public key can be implemented in software without compromising security.
The ORIGA chips provide battery and electronics manufacturers with counterfeit detection capability to prevent device failure or damage due to unauthorized components. The ORIGA2 chip (part number SLE95200) is designed for temperatures from -25 to +85ºC and for an operating voltage range of 2.5 to 4.8V. It comes in an ultra-small chip-scale package and in a very small QFN package.

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