Question is a bit ambiguous whether it refers to a 'second-preimage attack' or a 'collision attack'. 'Second-preimage attack': You are given a message, and you

Question is a bit ambiguous whether it refers to a 'second-preimage attack' or a 'collision attack'. 'Second-preimage attack': You are given a message, and your goal is find another message that hashes to the value as the given message. 'Collision attack': Your goal is to construct two messages (of your choosing) that hash to the same value.