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This video explains encryption, including its need and the key terms involved in the process. This video is based on the OCR J277 Computer Science specification. The topic is 1.3.2 Wired and Wireless Networks, Protocols and Layers from Paper 1. See more on CSNewbs.com here: https://www.csnewbs.com/ocr2020-3-2a-wiredandwireless
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