對 SHA-3 的攻擊

隔壁棚剛順利打趴 SHA-1 (Google 與 CWI Amsterdam 合作,找到 SHA-1 第一個 collision),還是有人在針對比較新的演算法在攻擊:「SymSum: Symmetric-Sum Distinguishers Against Round Reduced SHA3」。

完整的 SHA-3 是 24 rounds,這次打的是 9 rounds 版本,雖然有段距離,但這等於是大進展:

Based on this we propose a new distinguisher called SymSum for the SHA3 family which penetrates up to 9 rounds and outperforms the ZeroSum distinguisher by a factor of four.

不過 SHA-3 用的人不算多,該不會在還沒成為主流就被打趴...

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