How to construct pseudorandom permutations from pseudorandom functions
SIAM Journal on Computing - Special issue on cryptography
Pseudorandomness of MISTY-Type Transformations and the Block Cipher KASUMI
ACISP '01 Proceedings of the 6th Australasian Conference on Information Security and Privacy
The Security of Cipher Block Chaining
CRYPTO '94 Proceedings of the 14th Annual International Cryptology Conference on 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
New Results on the Pseudorandomness of Some Blockcipher Constructions
FSE '01 Revised Papers from the 8th International Workshop on Fast Software Encryption
Optimized Self-Synchronizing Mode of Operation
FSE '01 Revised Papers from the 8th International Workshop on Fast Software Encryption
Round Security and Super-Pseudorandomness of MISTY Type Structure
FSE '01 Revised Papers from the 8th International Workshop on Fast Software Encryption
A Concrete Security Treatment of Symmetric Encryption
FOCS '97 Proceedings of the 38th Annual Symposium on Foundations of Computer Science
Extended authentication integrating scheme for beyond 3g wireless networks
ISCIS'06 Proceedings of the 21st international conference on Computer and Information Sciences
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
How to enhance the security of the 3GPP confidentiality and integrity algorithms
FSE'05 Proceedings of the 12th international conference on Fast Software Encryption
On the pseudorandomness of a modification of KASUMI type permutations
ICISC'04 Proceedings of the 7th international conference on Information Security and Cryptology
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Within the security architecture of the 3GPP system there is a standardised encryption mode f8 based on the block cipher KASUMI. In this work we examine the pseudorandomness of the block cipher KASUMI and the provable security of f8. First we show that the three round KASUMI is not a pseudorandom permutation ensemble but the four round KASUMI is a pseudorandom permutation ensemble under the adaptive distinguisher model by investigating the properties of the round functions in a clear way. Second we provide the upper bound on the security of f8 mode under the reasonable assumption from the first result by means of the left-or-right security notion.