What ever happened to... Cray Comp/NSA co-development

[Timothy C. May]

At 6:15 PM 12/18/95, Derek Atkins wrote:
>Correction of another detail:
>
>> > tcmay at got.net (Timothy C. May) writes:
>> > When you've done this, and concluded that RSA-129 could be done in, say, X
>> > minutes, then move on to RSA-384 (the BlackNet key cracked by the MIT
>> > group), and on to the 1024- and 2048-bit keys. Tell us how many years or
>> > centuries it will take. (Hint: Rivest and Schneier have done these
>
>RSA-129 is 129 decimal digits, not 129 bits.  This computes to about
>425 bits, which is actually more difficult than the 384-bit Blacknet
>key.

I'm not having much luck on this example, am I? The RSA-129 I remembered
correctly as being 129 decimal digits, but I spaced out on the 384-bit key
and mislabelled it as "RSA-384."

It'll be _many_ years before a 384-decimal-digit number is factored, I
suspect. Let alone a 600-digit modulus, with or without the mysterious
"transphaser" technology mentioned by Anitro.

--Tim May

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