High Quality Content by WIKIPEDIA articles! AFSSI-5020 is the USAF Cryptologic Support Center purging standard from 1996. This deletion method first overwrites the target data area with the fixed value (0x00), then with the fixed value (0xff), and then with a randomly selected constant. Finally, at least 10% of the drive is read to verify the overwrites. The United States Air Force (USAF) is the aerial warfare, space warfare, and cyberwarfare service branch of the United States armed forces and one of the American uniformed services. Initially part of the United States Army, the USAF was formed as a separate branch of the military on September 18, 1947 under the National Security Act of 1947. It is the most recent branch of the U.S. military to be formed. In its 2010 Posture Statement, the USAF articulates its core functions as Nuclear Deterrence Operations, Special Operations, Air Superiority, Global Integrated ISR, Space Superiority, Command and Control, Cyberspace Superiority, Personnel Recovery, Global Precision Attack, Building Partnerships, Rapid Global Mobility and Agile Combat Support.

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