A proposal for a new block encryption standard
EUROCRYPT '90 Proceedings of the workshop on the theory and application of cryptographic techniques on Advances in cryptology
Differential cryptanalysis of the data encryption standard
Differential cryptanalysis of the data encryption standard
On the security of the IDEA block cipher
EUROCRYPT '93 Workshop on the theory and application of cryptographic techniques on Advances in cryptology
Fast Software Encryption Functions
CRYPTO '90 Proceedings of the 10th Annual International Cryptology Conference on Advances in Cryptology
CRYPTO '93 Proceedings of the 13th Annual International Cryptology Conference on Advances in Cryptology
A Chosen Plaintext Attack of the 16-round Khufu Cryptosystem
CRYPTO '94 Proceedings of the 14th Annual International Cryptology Conference on Advances in Cryptology
Key-Schedule Cryptoanalysis of IDEA, G-DES, GOST, SAFER, and Triple-DES
CRYPTO '96 Proceedings of the 16th Annual International Cryptology Conference on Advances in Cryptology
Cryptanalysis of Block Ciphers with Probabilistic Non-linear Relations of Low Degree
CRYPTO '98 Proceedings of the 18th Annual International Cryptology Conference on Advances in Cryptology
From Differential Cryptoanalysis to Ciphertext-Only Attacks
CRYPTO '98 Proceedings of the 18th Annual International Cryptology Conference on Advances in Cryptology
How to Strengthen DES Using Existing Hardware
ASIACRYPT '94 Proceedings of the 4th International Conference on the Theory and Applications of Cryptology: Advances in Cryptology
On Applying Linear Cryptanalysis to IDEA
ASIACRYPT '96 Proceedings of the International Conference on the Theory and Applications of Cryptology and Information Security: Advances in Cryptology
New Structure of Block Ciphers with Provable Security against Differential and Linear Cryptanalysis
Proceedings of the Third International Workshop on Fast Software Encryption
New Block Encryption Algorithm MISTY
FSE '97 Proceedings of the 4th International Workshop on Fast Software Encryption
Improving the Higher Order Differential Attack and Cryptanalysis of the KN Cipher
ISW '97 Proceedings of the First International Workshop on Information Security
EUROCRYPT'97 Proceedings of the 16th annual international conference on Theory and application of cryptographic techniques
Markov ciphers and differential cryptanalysis
EUROCRYPT'91 Proceedings of the 10th annual international conference on Theory and application of cryptographic techniques
Cryptanalysis of Skipjack reduced to 31 rounds using impossible differentials
EUROCRYPT'99 Proceedings of the 17th international conference on Theory and application of cryptographic techniques
ICICS '02 Proceedings of the 4th International Conference on Information and Communications Security
Square-like Attacks on Reduced Rounds of IDEA
SAC '02 Revised Papers from the 9th Annual International Workshop on Selected Areas in Cryptography
Enhancing Differential-Linear Cryptanalysis
ASIACRYPT '02 Proceedings of the 8th International Conference on the Theory and Application of Cryptology and Information Security: Advances in Cryptology
Improved Cryptanalysis of MISTY1
FSE '02 Revised Papers from the 9th International Workshop on Fast Software Encryption
New Results on Boomerang and Rectangle Attacks
FSE '02 Revised Papers from the 9th International Workshop on Fast Software Encryption
The Saturation Attack - A Bait for Twofish
FSE '01 Revised Papers from the 8th International Workshop on Fast Software Encryption
A Unified Approach to Related-Key Attacks
Fast Software Encryption
Analysis of Two Attacks on Reduced-Round Versions of the SMS4
ICICS '08 Proceedings of the 10th International Conference on Information and Communications Security
New Impossible Differential Attacks on AES
INDOCRYPT '08 Proceedings of the 9th International Conference on Cryptology in India: Progress in Cryptology
An Improved Impossible Differential Attack on MISTY1
ASIACRYPT '08 Proceedings of the 14th International Conference on the Theory and Application of Cryptology and Information Security: Advances in Cryptology
A Cryptanalytic View of the NSA's Skipjack Block Cipher Design
ISA '09 Proceedings of the 3rd International Conference and Workshops on Advances in Information Security and Assurance
Lightweight Block Ciphers Revisited: Cryptanalysis of Reduced Round PRESENT and HIGHT
ACISP '09 Proceedings of the 14th Australasian Conference on Information Security and Privacy
The Key-Dependent Attack on Block Ciphers
ASIACRYPT '09 Proceedings of the 15th International Conference on the Theory and Application of Cryptology and Information Security: Advances in Cryptology
Improved Cryptanalysis of Skein
ASIACRYPT '09 Proceedings of the 15th International Conference on the Theory and Application of Cryptology and Information Security: Advances in Cryptology
Cryptanalysis of Skipjack reduced to 31 rounds using impossible differentials
EUROCRYPT'99 Proceedings of the 17th international conference on Theory and application of cryptographic techniques
Differential and invertibility properties of BLAKE
FSE'10 Proceedings of the 17th international conference on Fast software encryption
Impossible differential cryptanalysis on feistel ciphers with SP and SPS round functions
ACNS'10 Proceedings of the 8th international conference on Applied cryptography and network security
Differential-multiple linear cryptanalysis
Inscrypt'09 Proceedings of the 5th international conference on Information security and cryptology
The (related-key) impossible boomerang attack and its application to the AES block cipher
Designs, Codes and Cryptography
New impossible differential and known-key distinguishers for the 3D cipher
ISPEC'11 Proceedings of the 7th international conference on Information security practice and experience
New cryptanalytic results on IDEA
ASIACRYPT'06 Proceedings of the 12th international conference on Theory and Application of Cryptology and Information Security
Amplifying side-channel attacks with techniques from block cipher cryptanalysis
CARDIS'06 Proceedings of the 7th IFIP WG 8.8/11.2 international conference on Smart Card Research and Advanced Applications
SEA: a scalable encryption algorithm for small embedded applications
CARDIS'06 Proceedings of the 7th IFIP WG 8.8/11.2 international conference on Smart Card Research and Advanced Applications
A related-key rectangle attack on the full KASUMI
ASIACRYPT'05 Proceedings of the 11th international conference on Theory and Application of Cryptology and Information Security
New combined attacks on block ciphers
FSE'05 Proceedings of the 12th international conference on Fast Software Encryption
New attacks against reduced-round versions of IDEA
FSE'05 Proceedings of the 12th international conference on Fast Software Encryption
Related-Key impossible differential attacks on 8-round AES-192
CT-RSA'06 Proceedings of the 2006 The Cryptographers' Track at the RSA conference on Topics in Cryptology
Related-Key boomerang and rectangle attacks
EUROCRYPT'05 Proceedings of the 24th annual international conference on Theory and Applications of Cryptographic Techniques
Faster variants of the MESH block ciphers
INDOCRYPT'04 Proceedings of the 5th international conference on Cryptology in India
Improved cryptanalysis of the FOX block cipher
INTRUST'09 Proceedings of the First international conference on Trusted Systems
Biclique cryptanalysis of the full AES
ASIACRYPT'11 Proceedings of the 17th international conference on The Theory and Application of Cryptology and Information Security
New insights on impossible differential cryptanalysis
SAC'11 Proceedings of the 18th international conference on Selected Areas in Cryptography
FSE'07 Proceedings of the 14th international conference on Fast Software Encryption
FSE'07 Proceedings of the 14th international conference on Fast Software Encryption
Impossible-differential attacks on large-block Rijndael
ISC'07 Proceedings of the 10th international conference on Information Security
Cryptanalysis of TWIS block cipher
WEWoRC'11 Proceedings of the 4th Western European conference on Research in Cryptology
Integral and multidimensional linear distinguishers with correlation zero
ASIACRYPT'12 Proceedings of the 18th international conference on The Theory and Application of Cryptology and Information Security
Collisions for the WIDEA-8 compression function
CT-RSA'13 Proceedings of the 13th international conference on Topics in Cryptology
Differential entropy analysis of the IDEA block cipher
Journal of Computational and Applied Mathematics
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In a recent paper we developed a new cryptanalytic technique based on impossible differentials, and used it to attack the Skipjack encryption algorithm reduced from 32 to 31 rounds. In this paper we describe the application of this technique to the block ciphers IDEA and Khufu. In both cases the new attacks cover more rounds than the best currently known attacks. This demonstrates the power of the new cryptanalytic technique, shows that it is applicable to a larger class of cryptosystems, and develops new technical tools for applying it in new situations.