>Fromm: "P. Rajaram" <rajaram @
ctt .
bellcore .
com>
>> 40 bit key (maximum allowed for export from U.S.)
>> * 1 486 PC would take three (3) years.
>> * 1,300 486 PCs in parallel would take one (1) day.
>
>This is way, way off and wrong.
>A SPARCstation 2 can try all combinations of a 40 bit RC4 key in about
>1 hour. (I've tried this.) One PC 486 would probably take less than 3
>hours.
A quick sanity check -- please correct me if mathematics have changed since
I was mistakenly let out of school:
2^40 = 1099511627776
1 hour = 60 minutes * 60 seconds = 3600
Thus, your SPARCstation 2 can process
1099511627776 / 3600 = 305419896 keys per second
I am truly impressed. I need one of these.
Charles Watt
SecureWare, Inc.
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