How knowing both left-info and right-info does divulge

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Reference no: EM133627592

Question: Here are (slightly simplified) destails for the offline eCash scheme. For each of the 256 coin-lets, say ,coinlet Ti, Alice's ID is Alice. She chooses three random numbers: ai, ci and di. coinlet T is constructed out of the value Alice, a, c, and d as following: first Alice computes the hashes of two values: hash (a/c) and hash ((a + Alice)/d), which she then concatenatenates and hashes to obtain T = hash (hash(a/c)/hash((a+Alice)/d)). then left-info for the coinlet is the triple (a,c,hash((a+Alice)/d), and right-info for the coinlet is the triple (hash(a/c), a+Alice, d). a. Show how knowing both left-info and right-info does divulge Alice's identity?

Reference no: EM133627592

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