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asd2260123 (å—éƒ¨å¤§è‘‰æ–‡çµ„å¤œæ ¡è‚¥å®…)
2018-05-11 11:35:48凛凛
https://i.imgur.com/mLj4PeF.jpg
https://i.imgur.com/fIyAnHI.jpg
https://i.imgur.com/siRltUq.jpg
https://i.imgur.com/2Sx843u.jpg
https://i.imgur.com/gNgvfTl.jpg
Alice orders a pink car from the car salesmen Bob
After seeing the pink car, Alice states that she has never ordered it:
How can Bob prove towards a judge that Alice has ordered a pink car? (And that he did not fabricate the order himself)
Symmetric cryptography fails because both Alice and Bob can be malicious
Can be achieved with public-key cryptography