Simple schedule and signal-key multiple schedule responding and behavioral contrast
نویسندگان
چکیده
منابع مشابه
A Simple Power Analysis Attack on the Twofish Key Schedule
This paper introduces an SPA power attack on the 8-bit implementation of the Twofish block cipher. The attack is able to unequivocally recover the secret key even under substantial amounts of error. An initial algorithm is described using exhaustive search on error free data. An error resistant algorithm is later described. It employs several threshold preprocessing stages followed by a combine...
متن کاملA Simple Power Analysis Attack on the Serpent Key Schedule
We describe an SPA attack on an 8-bit smart card implementation of the Serpent block cipher. Our attack uses measurements taken during an on-the-fly key expansion together with linearity in the cipher’s key schedule algorithm to drastically reduce the search time for an initial key. An implementation finds 256-bit keys in 3.736 ms on average. Our work shows that linearity in key schedule design...
متن کاملSchedule-induced electrodermal responding in children.
The current studies were designed to determine whether different intermittent schedules of reinforcement would have a differential effect on the skin conductance responses (SCRs) of children in the 8-12-year-old age range. Results of two experiments indicated that the amplitude of children's SCRs immediately following the occurrence of reinforcement were a function of the schedule of reinforcem...
متن کاملTransposition of AES Key Schedule
In this paper, we point out a new weakness of the AES key schedule by revisiting an old observation exploited by many known attacks. We also discover a major cause for this weakness is that the column-by-column word-wise property in the key schedule matches nicely with the MixColumns operation in the cipher’s diffusion layer. Then we propose a new key schedule by minor modification to increase ...
متن کاملKey-Schedule Cryptanalysis of DEAL
DEAL is a sixor eight-round Luby-Rackoff cipher that uses DES as its round function, with allowed key lengths of 128, 192, and 256 bits. In this paper, we discuss two new results on the DEAL key schedule. First, we discuss the existence of equivalent keys for all three key lengths; pairs of equivalent keys in DEAL-128 require about 2 DES encryptions to find, while equivalent keys in DEAL-192 an...
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ژورنال
عنوان ژورنال: Bulletin of the Psychonomic Society
سال: 1986
ISSN: 0090-5054
DOI: 10.3758/bf03330512