An Attack on the Last Two Rounds of MD 4 Bert den
نویسندگان
چکیده
In Rive90] the MD4 message digest algorithm was introduced taking an input message of arbitrary length and producing an output 128-bit message digest. It is conjectured that it is computationally infeasible to produce two messages having the same message digest, or to produce any message having a given prespeciied target message. In this paper it is shown that if the three round MD4 algorithm is stripped of its rst round, it is possible to nd for a given (initial) input value two diierent messages hashing to the same output. A computer program implementing this attack takes about 1 millisecond on a 16 Mhz IBM PS/2 to nd such a collision.
منابع مشابه
An Attack on the Last Two Rounds of MD4
In (RiveSO] the MD4 message digest algorithm was introduced taking an input message of arbitrary length and producing an output 128-bit message digest. It is conjectured that it is computationally infeasible to produce two messages having the same message digest, or to produce any message having a given prespecified target message. In this paper it is shown that if the three round MD4 algorithm...
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