Cryptographic attacks

Impossible differential cryptanalysis

In cryptography, impossible differential cryptanalysis is a form of differential cryptanalysis for block ciphers. While ordinary differential cryptanalysis tracks differences that propagate through the cipher with greater than expected probability, impossible differential cryptanalysis exploits differences that are impossible (having probability 0) at some intermediate state of the cipher algorithm. Lars Knudsen appears to be the first to use a form of this attack, in the 1998 paper where he introduced his AES candidate, DEAL. The first presentation to attract the attention of the cryptographic community was later the same year at the rump session of CRYPTO '98, in which Eli Biham, Alex Biryukov, and Adi Shamir introduced the name "impossible differential" and used the technique to break 4.5 out of 8.5 rounds of IDEA and 31 out of 32 rounds of the NSA-designed cipher Skipjack. This development led cryptographer Bruce Schneier to speculate that the NSA had no previous knowledge of impossible differential cryptanalysis. The technique has since been applied to many other ciphers: Khufu and Khafre, E2, variants of Serpent, MARS, Twofish, Rijndael, CRYPTON, Zodiac, Hierocrypt-3, TEA, XTEA, , ARIA, Camellia, and SHACAL-2. Biham, Biryukov and Shamir also presented a relatively efficient specialized method for finding impossible differentials that they called a miss-in-the-middle attack. This consists of finding "two events with probability one, whose conditions cannot be met together." (Wikipedia).

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Differential Cryptanalysis

Cryptography and Network Security by Prof. D. Mukhopadhyay, Department of Computer Science and Engineering, IIT Kharagpur. For more details on NPTEL visit http://nptel.iitm.ac.in

From playlist Computer - Cryptography and Network Security

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Random Oracle Solution - Applied Cryptography

This video is part of an online course, Applied Cryptography. Check out the course here: https://www.udacity.com/course/cs387.

From playlist Applied Cryptography

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How to solve EXACT DIFFERENTIAL EQUATIONS IVPs

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From playlist Differential Equations

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Please Subscribe here, thank you!!! https://goo.gl/JQ8Nys Introduction to Differential Equations - The types of differential equations, ordinary versus partial. - How to find the order of a differential equation.

From playlist Differential Equations

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How to solve differentiable equations with logarithms

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From playlist Differential Equations

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Perfect Cipher Is Impractical - Applied Cryptography

This video is part of an online course, Applied Cryptography. Check out the course here: https://www.udacity.com/course/cs387.

From playlist Applied Cryptography

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Abel formula

This is one of my all-time favorite differential equation videos!!! :D Here I'm actually using the Wronskian to actually find a nontrivial solution to a second-order differential equation. This is amazing because it brings the concept of the Wronskian back to life! And as they say, you won

From playlist Differential equations

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Block Ciphers and Data Encryption Standard (DES) - Part 1

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From playlist Network Security

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Shannon 100 - 26/10/2016 - Anne CANTEAUT

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From playlist Shannon 100

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Linear Cryptanalysis

Cryptography and Network Security by Prof. D. Mukhopadhyay, Department of Computer Science and Engineering, IIT Kharagpur. For more details on NPTEL visit http://nptel.iitm.ac.in

From playlist Computer - Cryptography and Network Security

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How to solve a differentialble equation by separating the variables

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From playlist Solve Differential Equation (Particular Solution) #Integration

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CERIAS Security: Recent Attacks on MD5 4/6

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Block Ciphers and Data Encryption Standard (DES): Part 2

Fundamental concepts of Block Cipher Design Principles are discussed. Differential cryptanalysis and linear cryptanalysis are explained.

From playlist Network Security

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How to solve differential equations by substitution

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From playlist Differential equations

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CERIAS Security: Recent Attacks on MD5 1/6

Clip 1/6 Speaker: John Black · University of Colorado at Boulder Cryptology is typically defined as cryptography (the construction of cryptographic algorithms) and cryptanalysis (attacks on these algorithms). Both are important, but the latter is more fun. Cryptographic hash functions

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Cryptanalysis of Vigenere cipher: not just how, but why it works

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From playlist Classical Cryptography

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Differential Equations: Exact DEs Example 1

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From playlist Differential Equations

Related pages

Skipjack (cipher) | CRYPTON | Twofish | International Data Encryption Algorithm | Advanced Encryption Standard process | Serpent (cipher) | Probability | ARIA (cipher) | XTEA | Block cipher | Differential cryptanalysis | Cryptography | Camellia (cipher) | NESSIE | Khufu and Khafre | E2 (cipher) | Tiny Encryption Algorithm | Zodiac (cipher) | DEAL | State (computer science)