Questions tagged [collision-atack]

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Finding $k$ strings $M_i$ such the XOR of the $k$ hashes $H(i,M_i)$ is zero

Let $k\ge2$ be a moderate given constant, and $H:[0,k)\times\{0,1\}^*\to\{0,1\}^b$ be a $b$-bit given hash function assimilated to a random oracle. For example $H(i,M)=\operatorname{SHAKE256}((\...