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A new simple technique to attack filter generators and related ciphers
- Selected Areas in Cryptography, SAC 2004, number 3357 in LNCS
, 2004
"... related ciphers ..."
On the Efficiency of the Clock Control Guessing Attack
, 2002
"... Many bitstream generators are based on linear feedback shift registers. A widespread technique for the cryptanalysis of those generators is the linear consistency test (LCT). In this paper, we consider an application of the LCT in cryptanalysis of clock-controlled bitstream generators, called clock ..."
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Cited by 4 (0 self)
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Many bitstream generators are based on linear feedback shift registers. A widespread technique for the cryptanalysis of those generators is the linear consistency test (LCT). In this paper, we consider an application of the LCT in cryptanalysis of clock-controlled bitstream generators, called clock control guessing. We give a general and very simple method for estimating the eciency of clock control guessing, yielding an upper bound on the e ective key length of a whole group of bitstream generators. Finally, we apply the technique against a number of clock-controlled generators, such as the A5/1, alternating step generator, step1-step2 generator, cascade generator, and others.
A time-memory tradeoff attack against LILI-128
- Proc. FSE 2002, volume 2365 of LNCS
, 2002
"... In this note we discuss a novel but simple time-memory tradeoff attack against the stream cipher LILI-128. The attack defeats the security advantage of having an irregular stepping function. The attack requires 2 ..."
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Cited by 3 (0 self)
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In this note we discuss a novel but simple time-memory tradeoff attack against the stream cipher LILI-128. The attack defeats the security advantage of having an irregular stepping function. The attack requires 2
The RAKAPOSHI Stream Cipher
"... Abstract. In this paper, we introduce the rakaposhi stream cipher. The algorithm is based on Dynamic Linear Feedback Shift Registers, with a simple and potentially scalable design, and is particularly suitable for hardware applications with restricted resources. The rakaposhi stream cipher offers 12 ..."
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Cited by 1 (0 self)
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Abstract. In this paper, we introduce the rakaposhi stream cipher. The algorithm is based on Dynamic Linear Feedback Shift Registers, with a simple and potentially scalable design, and is particularly suitable for hardware applications with restricted resources. The rakaposhi stream cipher offers 128-bit security, and aims to complement the current eSTREAM portfolio of hardware-oriented stream ciphers. 1

