隨著無線產品的快速發展,無線產品的應用越來越多。因電腦一直是使用最新的技術,無線鍵盤成為新的電腦周邊應用,但因為鍵盤是電腦重要輸入介面,使用者必須重視無線鍵盤資料傳輸的安全性。資料加密是提供無線資料傳輸安全的一項重要技術,AES(Advanced Encryption Algorithm)是由美國國家技術標準局(National Institute of Standard and Technology, NIST)所頒布的下一代加密演算法。而隨著單晶片技術的進步,不論何種加密演算法,過去只能利用硬體提供加密功能的技術,目前皆能由韌體達成加密演算法的運算進而提供更大的功能彈性於各項應用上。 在這篇論文中,利用Cypress公司的WirelessUSBTM LP 2.4G Radio SoC平台加上八位元單晶片控制器,實現AES加密演算法於無線鍵盤及USB接收器的應用上。 In the advanced modern information application, there are more and more wireless product applications. Computer products always use the advanced technology, so that wireless keyboard is a new application for computer peripheral. Because of the keyboard is the main data input device of the computer interface, user should concern about the safety of the data transmission for the wireless keyboard device. Data encryption is an important technology for the wireless device data transmission application. AES (Advanced Encryption Algorithm) is the next generation encryption algorithm which announced by NIST (National Institute of Standard and Technology) of United States. In this thesis, we use the firmware implementation of the AES encryption in the wireless keyboard with the WirelessUSBTM LP 2.4G Radio SoC and single chip 8-bit microcontroller of Cypress Semiconductor Corporation.