August 2003
Intermediate to advanced
496 pages
11h 59m
English
Content preview from .NET Security and Cryptography
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The CrackRSAWorkFactorDemo Example Program
The CrackRSAWorkFactorDemo example shows the exponential growth in time required to crack RSA. Figure B-1 shows the output from this program. These results are from a 900 MHz PC.
Figure B-1. Cracking RSA work factor demo.
If you want to compare these results on your own machine, and you want to know your machine's clock speed, see the following using Regedt32.exe.
HKEY_LOCAL_MACHINE/HARDWARE/DESCRIPTION/System/CentralProcessor/0
For numbers up to 13 bits, less than one millisecond is required. When 22 bits are used, it takes almost one second; 28 bits takes an hour; and if you had the patience, you ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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