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Sample PG file
This page briefly outlines the cost of building a cheap beowulf-like cluster to use dkbf to crack NT passwords. The numbers used are general and for proof-of-concept only. Your mileage WILL vary. The numbers here are out-of-date, which is good for you - bad for sys admins.
Price Part Quantity Cost $179 800 Mhz Pentium PIII x8 1432 $2 CPU Fans x8 16 $125 Tyan Tiger 133 Dual CPU M/B x4 500 $42 128 MB PC-100 RAM x4 168 $45 3.2 GB EIDE HD x4 180 $10 10/100 Mb/s Ethernet NIC x4 40 $5 Floppy Drive x4 20 $10 PCI Video Card x4 40 $20 ATX Case w/ 230 Watt PSU x4 80 $4 Case Fan x4 16 $20 4 port 10 Mb/s Ethernet Hub x1 20 $2 CAT 5 Ethernet Cables x4 8 $5 PS/2 Keyboard x1 5 $5 Mouse x1 5 $103 14 in. Monitor x1 103 $30 Manual KVM Switch + cables x1 30 $24 x40 CD-ROM x1 24 $2 Scyld Beowulf CD x1 2 $30 Red Hat 7.0 Distribution x1 30 ______________________________________________________________________ $ 2719
Of course, these numbers are rough. No shipping and handling is included which is a significant cost factor. You'll probably have some of these parts already. Estimate does not include replacement parts, warranties, or electricity costs. In other words, this is a rough estimate of cheap parts and keyrates.
Character Set Keys Time A-Z 8,353,082,582 keys 1 hour A-Z,0-9 80,603,140,212 keys 9 hours A-Z,0-9,33 symbols 7,555,858,447,479 keys 35 days
Keyrates will vary with everything: RAM, CPU Mhz, CPU architecture, OS, load, compilers, number of accounts to be crackes, etc. LophtCrack does have much better numbers. Their program uses highly optimized assembly routines which are not used in dkbf. In addition, their benchmarks are on a Quad Xeon with 400 Mhz CPUs. If you have resources to buy a Quad Xeon, you'll get much better stats. However, Quad Xeon machines don't cost $3000.
Try it out for yourself with the Price:Performance Worksheet
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