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As of 2008, the best analytical attack is linear cryptanalysis, which requires 2 43 known plaintexts and has a time complexity of 2 39–43 (Junod, 2001). The Data Encryption Standard (DES / ˌdiːˌiːˈɛs, dɛz /) is a symmetric-key algorithm for the encryption of digital data. Although its short key length of 56 bits makes it too insecure ...
US Government Manual, official freely downloadable PDFs of annual printed versions. Federal Agency Directory, online database maintained by the Louisiana State University Libraries in partnership with the Federal Depository Library Program of the GPO; A–Z Index of US Departments and Agencies, USA.gov, the US government's official web portal ...
USA.gov. USA.gov is the official web portal of the United States federal government. It is designed to improve the public's interaction with the United States government by quickly directing website visitors to the services or information they are seeking, and by inviting the public to share ideas to improve government.
The federal government of the United States (U.S. federal government or U.S. government) [a] is the national government of the United States, a federal republic located primarily in North America, composed of 50 states, five major self-governing territories, several island possessions, and the federal district (national capital) of Washington ...
United States Department of Defense. The United States Department of Defense (DoD, [ 2 ]USDOD, or DOD) is an executive branch department of the federal government of the United States charged with coordinating and supervising all agencies and functions of the U.S. government directly related to national security and the United States Armed Forces.
Science.gov is a web portal and specialized search engine. Using federated search technology, Science.gov serves as a gateway to United States government scientific and technical information and research. Currently in its fifth generation, Science.gov provides a search of over 60 databases from 14 federal science agencies and 200 million pages ...
The United States federal executive departments are the principal units of the executive branch of the federal government of the United States. They are analogous to ministries common in parliamentary or semi-presidential systems but (the United States being a presidential system) they are led by a head of government who is also the head of ...
Website. www.usds.gov. The United States Digital Service is a technology unit [1][2] housed within the Executive Office of the President of the United States. It provides consultation services to federal agencies on information technology. It seeks to improve and simplify digital service, and to improve federal websites.