Abstract
The purpose of a hash function is to distill a small amount of information out of large messages. But the amount has to be large enough so that it (usually) identifies the message uniquely. One requirement for cryptography is that it should be computationally hard for an adversary to generate two different messages with the same hash value.
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© 2015 Springer-Verlag Berlin Heidelberg
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von zur Gathen, J. (2015). Chapter 7 Hash functions. In: CryptoSchool. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-662-48425-8_10
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DOI: https://doi.org/10.1007/978-3-662-48425-8_10
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