"碰撞向量"," collision vector" "抗碰撞杂凑函数"," collision-resistant hash-function" "连语"," collocation" ... www.guandang.com|基于5个网页 2. 碰撞散列函数 ...所说的2个输入映射到1个输出,我们叫做“碰撞”;无碰撞散列函数(collision-resistant hash-function)要满足“找出能映射到同 …www.lawtime.cn|基于2个网页 隐私声明 法律声明 广告 反馈 ...
We review the computational problems defined on lattices and their respective hardness and discuss constructions of hash function families based on both integer and ideal lattices whose security depends on these computational problems on lattices. We provide a comparative analysis of the theoretical ...
Chameleon-hash functions, introduced by Krawczyk and Rabin (NDSS’00), are trapdoor collision-resistant hash functions parametrized by a public key. If the corresponding secret key is known, arbitrary collisions for the hash function can be found efficiently. Chameleon-hash functions have prominent ap...
Target Collision Resistant Hash Functiondoi:10.1007/978-1-4419-5906-5_1212Universal One-Way Hash Functions (UOWHF)Springer US
all sources of entropy are mixed with the hash function, and you can safely grab a substring of any length shorter than 32 digits. You can roughly estimate how many ids you can generate before reaching 50% chance of collision with:sqrt(36^(n-1)*26), so if you use4digits, you'll re...
但是实际上根据CRHF定义，如果一个函数是抗碰撞的，指的是任何多项式时间敌手，不能在多项式时间内，以不可忽略概率找到x1≠x2，且h(x1)=h(x2)，这样即为collision resistant。这代表可能存在不同输入但是对应相同输出，只要无法在多项式时间内以不可忽略概率找到即可满足条件。对于h'(x)，如果仅仅存在一组碰撞值...
"碰撞向量"," collision vector" "抗碰撞杂凑函数"," collision-resistant hash-function" "连语"," collocation" ... www.guandang.com|基于5个网页 2. 碰撞散列函数 ...所说的2个输入映射到1个输出,我们叫做“碰撞”;无碰撞散列函数(collision-resistant hash-function)要满足“找出能映射到同 …www....
A CDH-based Strongly Unforgeable Signature Without Collision Resistant Hash Function[A].Wollongong,Australia:[s.n.] 2007.Matsuda, T., Attrapadung, N., Hanaoka, G., Matsuura, K., Imai, H.: A CDH-based strongly unforgeable signature without collision resistant hash function. In: Proc. of...
It is well known that a simple modification of the hash-and-sign paradigm may replace the collision-resistant hash with a weaker primitive-a target-collision resistant hash function (also known as a universal one-way hash, UOWHF). The signer generates a random...
In this paper we construct a hash function by using different matrices for the image of the bits 0 and 1 and found the collision and second preimage for the new construction.Joju K.TLilly P.L