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Theory Collision resistance is related tosecond preimage resistance, which is also known as weak collision resistance. A minimal requirement for a hash function to be collision resistant is that the length of its result should be 192 bits (in 2011). Collision resistance is the defining property o...
4) target collision resistance function 抗碰撞函数 1. This paper describes a multicast source authentication method based ontarget collision resistance functionand authenti-cation tree divided into groups,and focuses on forming ways and verification of message packages. ...
网络抗拒碰撞 网络释义 1. 抗拒碰撞 因此, 一个可以抗拒碰撞(Collision-Resistance) 的单向杂 凑函數条件更为严苛, 除了上述兩条件外, 必须使得攻击者欲找 … www.docin.com|基于 1 个网页
1.抗碰撞性(collision resistance) 碰撞性是指哈希碰撞,哈希碰撞的产生:给定输入的2个值x和y,若经过哈希函数运算,使得输出H(x)=H(y),此时就产生了哈希碰撞。 哈希碰撞是很常见的,此时不同的输入会映射到哈希表中的同一个位置,毕竟输入是无穷大的,而输出只是在有限的哈希表中,比如比特币中的哈希函数SHA-256...
Multi-collision resistance seems to be a qualitatively weaker property than standard collision resistance. Nevertheless, in this work we show a non-blackbox transformation of any moderately shrinking t- MCRH , for t ∈ { 3 , 4 } , into an (infinitely often secure) CRH . This transformation...
4) collision resistance 抗碰撞性 5) resistance to impact 碰撞阻力;冲击抗力 6) possible collision 可碰撞性 补充资料:不可抗力 不可抗力 force majeure 当事人自身能力不能抗拒也无法预防的客观情况或事故。不可抗力可以是自然原因酿成的,也可以是人为的、社会因素引起的。前者如地震、水灾、旱灾等,后者如...
(the same InChIKey for different InChIs/structures) are unavoidable in very large collections. A theoretical – optimistic – estimate of collision resistance (i.e., the minimal size of a database at which a single collision is expected, that is, an event of the two hashes of two ...
The first security issue to address is collision resistance. A collision in hash function H is a pair of messages (M, M′) such that M≠M′ but H(M)=H(M′). Any hash function with a larger domain than range should have a collision. In theory, there exists an efficient algorithm, ...