نتایج جستجو برای: cipher text only attack
تعداد نتایج: 1566384 فیلتر نتایج به سال:
We propose a construction of an efficient, synchronous keystream generator with provable security properties in response to the NESSIE call for primitives. The cryptographic core of the stream cipher is the block cipher Rijndael. We show that a non-trivial attack on the cipher reduces to an attack on Rijndael. The construction uses an optimization of earlier work on pseudorandom generators by B...
In this paper the security of the stream cipher Vesta-2M is investigated. Cryptanalytic algorithm is developed for a known plaintext attack where only a small segment of plaintext is assumed to be known. The complexity the attack is estimated the time of searching through the square root of all possible initial states.
Abstract PudgyTurtle is not a cipher, but rather an alternative way to utilize the keystream in binary-additive stream-cipher cryptosystems. Instead of modulo-2 adding plaintext, uses encode 4-bit groups and then encipher each codeword. One goal make time–memory tradeoff attacks more difficult. Here, we investigate one such attack (a modification well-known Babbage–Golić method), show that its ...
Encryption transforms the original information called clear text or plain text into transformed information called code text, simply cipher or cipher text which usually has the appearance of unintelligible and random data. The transformed information in its encrypted form is called the cryptogram. Encryption transforms the message in such a way that its contents are hidden from unauthorized rea...
The strength of the algorithm used in data security does not only depend on complexity used, but lies randomness and key solving used. repetition same character formation a by is very vulnerable to attack, because it can make easier for attackers break itself. One commonly algorithms comfort cipher algorithm. number characters needed this directly proportional or equal text that secured. Using ...
Deoxys is a final-round candidate of the CAESAR competition. Deoxys is built upon an internal tweakable block cipher Deoxys-BC, where in addition to the plaintext and key, it takes an extra non-secret input called a tweak. This paper presents the first impossible differential cryptanalysis of Deoxys-BC-256 which is used in Deoxys as an internal tweakable block cipher. First, we find a 4.5-round...
Vaudenay[1] proposed a new way of protecting block ciphers against classes of attacks, which was based on the notion of decorrelation. He also suggested two block cipher families COCONUT and PEANUT. Wagner[2] suggested a new differential-style attack called boomerang attack and cryptanalyzed COCONUT'98. Cheon[3] suggested a new block cipher DONUT which was made by two pairwise perfect decorrela...
NLS is a stream cipher which was submitted to eSTREAM project. A linear distinguishing attack against NLS was presented by Cho and Pieprzyk, which was called as Crossword Puzzle attack. NLSv2 is the tweak version of NLS which aims mainly at avoiding the CP attack. In this paper, a new distinguishing attack against NLSv2 is presented. The attack exploits high correlation amongst neighboring bits...
Cloud computing concept has been envisioned as architecture of the next generation for Information Technology (IT) enterprise. The Cloud computing idea offers with dynamic scalable resources provisioned as examine on the Internet. It allows access to remote computing services and users only have to pay for what they want to use, when they want to use it. But the security of the information whic...
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