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143
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IJNSEC
2006
15 years 6 months ago
2006
Recently, Yang et al. improved Yang and Shieh's two password authentication schemes to withstand Sun and Yeh's forgery attacks. However, Kim et al. pointed out that Yang...
179
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IJNSEC
2006
15 years 6 months ago
2006
Finding a shorter addition/subtraction-chain for an integer is an important problem for many cryptographic systems based on number theory. Especially, execution time of multiplica...
157
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IPL
2006
15 years 6 months ago
2006
We show that for a given set of m pairwise constraints over n variables, a variable assignment that satisfies maximally many m constraints (MAX-2-CSP) can be found in O(nm dn/3) t...
156
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IPL
2006
15 years 6 months ago
2006
We study the NP-hard problem of labeling points with maximum-radius circle pairs: given n point sites in the plane, find a placement for 2n interior-disjoint uniform circles, such...
136
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JC
2006
15 years 6 months ago
2006
We prove upper bounds on the order and degree of the polynomials involved in a resolvent representation of the prime differential ideal associated with a polynomial differential s...