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CTRSA
2011
Springer
189views Cryptology» more  CTRSA 2011»
9 years 3 months ago
Online Ciphers from Tweakable Blockciphers
Abstract. Online ciphers are deterministic length-preserving permutations EK : ({0, 1}n )+ → ({0, 1}n )+ where the i-th block of ciphertext depends only on the first i blocks of...
Phillip Rogaway, Haibin Zhang
CEE
2004
205views more  CEE 2004»
9 years 11 months ago
64-bit Block ciphers: hardware implementations and comparison analysis
A performance comparison for the 64-bit block cipher (Triple-DES, IDEA, CAST-128, MISTY1, and KHAZAD) FPGA hardware implementations is given in this paper. All these ciphers are u...
Paris Kitsos, Nicolas Sklavos, Michalis D. Galanis...
IJNSEC
2007
253views more  IJNSEC 2007»
9 years 11 months ago
Stream or Block Cipher for Securing VoIP?
When the network is homogeneous, choosing the cipher type for a packet telephony application is simple. It is clear that stream ciphers perform better than block ciphers over land...
Ashraf D. Elbayoumy, Simon J. Shepherd
CORR
2007
Springer
88views Education» more  CORR 2007»
9 years 11 months ago
A generic attack to ciphers
In this paper, we present a generic attack for ciphers, which is in essence a collision attack on the secret keys of ciphers .
An-Ping Li
WEWORC
2007
162views Cryptology» more  WEWORC 2007»
10 years 29 days ago
New Attacks on the Stream Cipher TPy6 and Design of New Ciphers the TPy6-A and the TPy6-B
The stream ciphers Py, Pypy and Py6 were designed by Biham and Seberry for the ECRYPT-eSTREAM project in 2005. The ciphers were promoted to the ‘Focus’ ciphers of the Phase II ...
Gautham Sekar, Souradyuti Paul, Bart Preneel
FSE
2003
Springer
99views Cryptology» more  FSE 2003»
10 years 5 months ago
Analysis of Involutional Ciphers: Khazad and Anubis
In this paper we study structural properties of SPN ciphers in which both the S-boxes and the affine layers are involutions. We apply our observations to the recently designed Rijn...
Alex Biryukov
CTRSA
2003
Springer
96views Cryptology» more  CTRSA 2003»
10 years 5 months ago
Hardware Performance Characterization of Block Cipher Structures
In this paper, we present a general framework for evaluating the performance characteristics of block cipher structures composed of S-boxes and Maximum Distance Separable (MDS) ma...
Lu Xiao, Howard M. Heys
ESORICS
2004
Springer
10 years 5 months ago
On the Role of Key Schedules in Attacks on Iterated Ciphers
This paper considers iterated ciphers and their resistance against linear and differential cryptanalysis. In the theory of these attacks one assumes independence of the round keys...
Lars R. Knudsen, John Erik Mathiassen
ISW
2007
Springer
10 years 6 months ago
New Weaknesses in the Keystream Generation Algorithms of the Stream Ciphers TPy and Py
The stream ciphers Py, Py6 designed by Biham and Seberry were promising candidates in the ECRYPT-eSTREAM project because of their impressive speed. Since their publication in Apri...
Gautham Sekar, Souradyuti Paul, Bart Preneel
INDOCRYPT
2007
Springer
10 years 6 months ago
Related-Key Attacks on the Py-Family of Ciphers and an Approach to Repair the Weaknesses
The stream cipher TPypy has been designed by Biham and Seberry in January 2007 as the strongest member of the Py-family ciphers, after weaknesses in the other members Py, Pypy, Py...
Gautham Sekar, Souradyuti Paul, Bart Preneel
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