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Page 1: PowerPoint Presentation · 3.3 The Data Encryption Standard Data Encryption Standard 1977 National Bureau of Standard (National Institute of Standard and Technology, NIST) Federal
Page 2: PowerPoint Presentation · 3.3 The Data Encryption Standard Data Encryption Standard 1977 National Bureau of Standard (National Institute of Standard and Technology, NIST) Federal
Page 3: PowerPoint Presentation · 3.3 The Data Encryption Standard Data Encryption Standard 1977 National Bureau of Standard (National Institute of Standard and Technology, NIST) Federal
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Page 7: PowerPoint Presentation · 3.3 The Data Encryption Standard Data Encryption Standard 1977 National Bureau of Standard (National Institute of Standard and Technology, NIST) Federal
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Page 21: PowerPoint Presentation · 3.3 The Data Encryption Standard Data Encryption Standard 1977 National Bureau of Standard (National Institute of Standard and Technology, NIST) Federal
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Linear Cryptanalysis

• Take the XOR of some plain text bits together.

• Take the XOR of some Cipher text bits together

• Take the XOR of the result from plain text and cipher text.

• We will get a single bit ,which is the XOR of some of the key bits

Page 27: PowerPoint Presentation · 3.3 The Data Encryption Standard Data Encryption Standard 1977 National Bureau of Standard (National Institute of Standard and Technology, NIST) Federal
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