2 Answered Questions for the topic Cryptography
04/28/18
Probability of using the same key
A cipher has 365 different keys. Each day, a key is chosen (uniformly) at random from the 365 keys. After how many days is the chance of any key being reused greater than 50%?
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Cryptography Probability
08/24/17
probability of similarity of 4 digits from md5 hash of two strings
Suppose we select four random digits from md5 hash of a string. And we select four random digits from md5 hash of some other string. What is the probability that these 4 digits will be same?
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