WAPI hardware encryption and decryption scheme

Hardware encryption and decryption release the main chip occupancy

Ms. Chen Yurong, business development manager of Atheros, said that there are nearly 1,000 related products supporting WAPI. The recently updated 802.11n WAPI specification of China BWIPS can provide a connection speed of up to 300Mbps, and the range of use is greatly improved. The implementation of WAPI can be divided into two kinds of hardware and software. If software is used, the transmission rate depends entirely on the processing strength and performance of the main chip. Generally speaking, since encryption and decryption may occupy large resources, an AP product may basically only achieve 20Mbps rate, which has not much impact on 802.11a / b / g, but when Wi-Fi enters 802.11n from 802.11g After that, the rate of about 20Mbps will not reflect the advantages of 802.11n.

"The benefits of the WAPI hardware encryption and decryption scheme are several aspects: first, it will not affect the throughput due to encryption and decryption processing; second, the load of the main chip is reduced, and the power consumption is not greatly increased. The encryption and decryption scheme will become a must-have feature, "said Chen Yurong. Atheros has always been committed to the development of WAPI technology. At present, all the company's mainstream 802.11n products support both Wi-Fi and WAPI standards. These products have passed the WAPI test in advance. In addition to being widely used in the products of mainstream mobile phone manufacturers such as Samsung, Huawei, Sony Ericsson, Atheros ’solution, China ’s first Motorola A3100 mobile phone that has passed WAPI certification also uses Atheros chips.

Zheng Jiansheng, vice president and general manager of Atheros, added that the algorithm for hardware encryption and decryption is relatively fixed, and the difficulty lies in how to optimize. WAPI is much longer than the number of Wi-Fi passwords. For the chip, it requires much higher processing power than ordinary Wi-Fi. Therefore, Atheros does not need the main processor to perform this part of the calculation, saving system resources. "In addition, because our WAPI solution is implemented in hardware, the product is basically the same price as the general Wi-Fi chip. The product of the previous year was more expensive, that is because the technology has not been popularized, and it has now been fully rolled out. Very good news for the WLAN industry and Chinese consumers. "

WAPI is suitable for other connection methods

Qin Zhiqiang, secretary general of the WAPI Industry Alliance, pointed out that WAPI is a wireless security technology, but it is not only available for wireless local area networks. The WAPI Alliance pays special attention to the research of triple play and standard formulation this year. Of course, WAPI applications based on local wireless networks must work together with protocol stations and also include radio frequency circuits. If you simply do WAPI but not Wi-Fi, it is not cost-effective and unnecessary.

Integration with other wireless technologies

The integration of multiple wireless technologies is a way to effectively reduce costs and development difficulties for customers. Zheng Jiansheng revealed that Atheros has now started the research and development of this type of integrated technology. At present, Wi-Fi + Bluetooth 3.0 is already a big trend. In the next few years, this market will see rapid development. At the same time, Zheng Jiansheng also pointed out that some programs are the real demand of the market, and sometimes it may just be the demand of market speculation. He said that, like Bluetooth technology in mobile phones, the true usage rate may be less than 20%. Of course, for Atheros, whether it is real user demand or market hype demand, we will meet customer demand. Integration schemes are sometimes very helpful, such as some intelligent applications, but how fast it will blossom everywhere depends on the specific situation of the market.

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