Hash Functions: From Merkle-Damgård to Shoup
Hash Functions: From Merkle-Damgård to Shoup
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哈希函数:从 Merkle-Damgård 到 Shoup
DOI:
10.1007/3-540-44987-6_11
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发表时间:
2001
期刊:
影响因子:
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通讯作者:
Ilya Mironov
中科院分区:
文献类型:
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作者:
Ilya Mironov
In this paper we study two possible approaches to improving existing schemes for constructing hash functions that hash arbitrary long messages. First, we introduce a continuum of function classes that lie between universal one-way hash functions and collision-resistant functions. For some of these classes efficient (yielding short keys) composite schemes exist. Second, we prove that the schedule of the Shoup construction, which is the most efficient composition scheme for universal one-way hash functions known so far, is optimal.