Loading... The system can't perform the operation now. Try again later.

## Cite

## Advanced search

ArticlesCase lawProfiles My profileMy libraryAlertsMetrics Settings Sign in Sign in ArticlesScholar 1 result (**0.02**sec) My profileMy library

### A design principle for hash functions

IB Damgård - Conference on the Theory and Application of …, 1989 - Springer We show that if there exists a computationally collision free function f from m bits to t bitswhere m> t, then there exists a computationally collision free function h mapping messages

of arbitrary polynomial lengths to t-bit strings. Let n be the length of the message. h can be

constructed either such that it can be evaluated in time linear in n using 1 processor, or such

that it takes time O (log (n)) using O (n) processors, counting evaluations of f as one step.

Finally, for any constant k and large n, a speedup by a factor of k over the first construction is … Cited by 1323 Related articles All 11 versions HelpPrivacyTerms