W. Die, BNR Inc. report, 1980.  Home/Search   Document Not in Database   Summary   Related Articles

....At the cost of a one time investment a hardware attack is substantially faster than a software attack. In 1977 a 20 million dollar parallel DES key searching machine was proposed with an expected search time of 12 hours [11] We write [ 20 million, 12 hours, 1977] hardware for this design. In [10] it was corrected to [ 50 million, 2 days, 1980] hardware. Mike Wiener published a detailed [ 1 million, 3.5 hours, 1993] hardware design [43] and special purpose [ 130,000, 112 hours, 1998] hardware was actually built [19] see also [13] 2.2.6 E ectiveness of guessing. There is always the ....

....1999 [6] This factoring e ort was estimated to cost at most 20 years on a PC with at least 64Mbytes of memory (or a single day on 7500 PCs) This time was spent almost entirely on the sieving step. It is less than 10 4 Mips Years and corresponds to fewer than 3 # 10 17 operations, whereas L[10 155 ] = 2 # 10 19 (omitting the o(1) This shows that L[n] overestimates the number of operations to be carried out for the factorization of n. The run time given here is the actual run time of the RSA155 factoring e ort and should not be confused with the estimates given in [37] which appeared ....

W. Die, BNR Inc. report, 1980.

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