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:This article is about the DES encryption algorithm. For other uses, see DES (disambiguation).
The Data Encryption Standard (DES) is a cipher (a method for encrypting information) selected as an official Federal Information Processing StandardFederal Information Processing Standards FIPS are publicly announced standards developed by the U. Federal government for use by all (non-military) government agencies and by government contractors. Many FIPS standards are modified versions of standards u (FIPS) for the United StatesThe United States of America also referred to as the United States U. America ¹ or the States is a federal republic in central North America, stretching from the Atlantic in the east to the Pacific Ocean in the west. It shares land borders with Canada in in 19761976 is a leap year starting on Thursday (link will take you to calendar). Events January January 12 UN Security Council votes 11-1 to admit the Palestinian Liberation Organization January 15 Would-be Gerald Ford presidential assassin Sara Jane Moore is s, and which has subsequently enjoyed widespread use internationally. The algorithm was initially controversial, with classified design elements, a relatively short key length, and suspicions about a National Security Agency (NSA) backdoor. DES consequently came under intense academic scrutiny, and motivated the modern understanding of block ciphers and their cryptanalysis.
DES is now considered to be insecure for many applications. This is chiefly due to the 56-bit key size being too small; DES keys have been broken in less than 24 hours. There are also some analytical results which demonstrate theoretical weaknesses in the cipher, although they are infeasible to mount in practice. The algorithm is believed to be practically secure in the form of Triple DES, although there are theoretical attacks. In recent years, the cipher has been superseded by the Advanced Encryption Standard (AES).
In some documentation, DES is referred to as the DEA (the Data Encryption Algorithm). When spoken, "DES" is either spelled out (dee-ee-ess) or pronounced as a single syllable (dez).
