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124
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CRYPTO
1992
Springer
15 years 8 months ago
1992
Springer
We prove that the set of DES permutations (encryption and decryption for each DES key) is not closed under functional composition. This implies that, in general, multiple DES-encry...
148
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ICC
2007
IEEE
15 years 11 months ago
2007
IEEE
— A novel client puzzle protocol, the Memoryless Puzzle Protocol (MPP), is proposed and investigated. The goal is to show that MPP is a viable solution for mitigating distributed...
136
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GLOBECOM
2009
IEEE
15 years 11 months ago
2009
IEEE
Abstract—The multimedia communication is rapidly converging towards Voice over Internet – commonly known as Voice over Internet Protocol (VoIP). Session Initiation Protocol (SI...
110
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IJHPCN
2008
15 years 4 months ago
2008
: To improve throughput of grid data servers under heavy loads or under denial of service attacks, it is important to service requests differentially, giving preference to ongoing ...