New strategy for searching disturbance vector of SHA-1 collision attack

【摘要】：正Dear editor,We present a new algorithm to search for effective disturbance vectors with a complexity of 2~(38)based on the following two properties of disturbance vectors.One property is the weight correlation between the first 16-step disturbance vectors and the60-step disturbance vectors.The other property requires all the differences of the active bit positions of the first 16-step disturbance vectors to be