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A Strongly Unforgeable Signature under the CDH Assumption without Collision Resistant Hash Functions
2008
IEICE transactions on information and systems
Unforgeability of digital signatures is closely related to the security of hash functions since hashing messages, such as hash-andsign paradigm, is necessary in order to sign (arbitrarily) long messages. Recent successful collision finding attacks against practical hash functions would indicate that constructing prrcate that constructing prtical collision resistant hash functions is difficult to achieve. Thus, it is worth considering to relax the requirement of collision resistance for hash
doi:10.1093/ietisy/e91-d.5.1466
fatcat:5p5yjm4w65fr5gbpp3scavu7ii