Electronic Frontier Fondation. Cracking DES. O'Reilly, 1998.  Home/Search   Document Not in Database   Summary   Related Articles   Check

.... as a secure algorithm, the NIST has decided to launch a process in order to nd a successor for the next 20 years (see [1] We recall here that it was possible in 1997 to build a hardware device which can run an exhaustive search of the key in less than 4 days with a budget of 200 000, see [7] for more details and listings. Knowing that agencies (or criminal organisations) have millions of at disposal, one can have a good idea of the actual security of DES. However, we have to note that variants of DES, like Triple DES, are still considered to be very secure. 1.2 De nition In this ....

Electronic Frontier Fondation. Cracking DES. O'Reilly, 1998.

....(cf. 10] in 1980 corrected to 50 million and 2 days (cf. 9] In a 1993 design by M. Wiener (cf. 31] the cost and expected time were down to one million dollar and 3.5 hours, respectively. In 1998 a 130,000 machine was built with an expected search time of 112 hours (cf. 16] see also [12]) Effectiveness of guessing. There is always the possibility that someone may find a key simply by guessing it. For reasonable key sizes the probability that this happens is small: even for a 50 bit key there is a total probability of one in a million that it is found if one billion people each ....

Electronic Frontier Foundation, Cracking DES, OReilly, July 1998.

....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 possibility that someone may nd a key simply by guessing it. For reasonable key sizes the probability that this happens is small: even for a 50 bit key there is a total probability of one in a million that it is found if one billion people ....

Electronic Frontier Foundation, Cracking DES, O'Reilly, July 1998.

....(cf. 10] in 1980 corrected to 50 million and 2 days (cf. 9] In a 1993 design by M. Wiener (cf. 29] the cost and expected time were down to one million dollar and 3.5 hours, respectively. In 1998 a 130,000 machine was built with an expected search time of 112 hours (cf. 14] see also [12]) Effectiveness of guessing. There is always the possibility that someone may find a key simply by guessing it. For reasonable key sizes the probability that this happens is small: even for a 50 bit key there is a total probability of one in a million that it is found if one billion people each ....

Electronic Frontier Foundation, Cracking DES, O'Reilly, July 1998.

....only as a background activity and had a performance approximately equal to a 200 Mhz Pentium processor. The key was cracked after about 12 weeks when approximately 25 of the possible 2 56 or 6x10 16 values had been checked. In 1998 a machine was developed by the Electronic Frontier Foundation [EFF 1998] which can successfully crack DES keys in an average of 3 days. Although it is still used in many commercial and other applications, DES in its basic form should be considered obsolete for the protection of all but low value information. A crude solution that is sometimes used is known as ....

Electronic Frontier Foundation (1998),Cracking DES, Secrets of Encryption Research, Wiretap Politics & Chip Design, Sebastapol: O'Reilly & Associates.

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