Cascade Jump Controlled Sequence Generator (CJCSG)
نویسندگان
چکیده
Jumping LFSRs have recently been proposed [SASC04] as building blocks for stream ciphers. In this paper a construction based on these principles is described. The proposed encryption primitive is the key stream generator part of a synchronous stream cipher accommodating a key of 128 bits and an IV of 64 up till 112 bits. A number of cryptanalytic attacks are considered, leading to the conclusion that the proposed primitive has a high resistance against those attacks. The key stream generator is particularly designed to resist side-channel attacks and can efficiently be implemented in hardware and software for a wide range of target processes and platforms.
منابع مشابه
Cryptanalysis of Pomaranch (CJCSG)
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Jump registers were recently proposed [SASC04] as building blocks for stream ciphers. In this paper a construction based on these principles is described. The proposed encryption primitive is a synchronous stream cipher accommodating a key of 128 bits and an IV of 64 up to 162 bits, or an 80-bit key and 32 to 108 bit IV. Version 3 comes as a final submission for the second phase of the eSTREAM ...
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Pomaranch [3] is a synchronous stream cipher submitted to eSTREAM, the ECRYPT Stream Cipher Project. The cipher is constructed as a cascade clock control sequence generator, which is based on the notion of jump registers. In this paper we present an attack which exploits the cipher's initialization procedure to recover the 128-bit secret key. The attack requires around 2 computations. An improv...
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Pomaranch is a synchronous, hardware-oriented stream cipher submitted to eSTREAM, the ECRYPT Stream Cipher Project. The cipher is designed as a cascade clock-controlled key-stream generator built on jump registers. This paper presents a discussion over the attacks on Pomaranch discovered so far. Particular focus is made on a new inherent property of jump registers that allows to construct their...
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Since Advanced Encryption Standard (AES) in stream modes, such as counter (CTR), output feedback (OFB) and cipher feedback (CFB), can meet most industrial requirements, the range of applications for dedicated stream ciphers is decreasing. There are many attack results using algebraic properties and side channel information against stream ciphers for hardware applications. Al-Hinai et al. presen...
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تاریخ انتشار 2005