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1  Bitcoin / Development & Technical Discussion / Dubious math claim on: March 10, 2013, 05:23:47 AM
Can someone please poke some holes in this:
Quote
Alastair Carnegie | February 20, 2013 at 4:15 pm |

A word of caution, there is still a long standing myth that factoring dual-prime composite numbers is asymetrically complex, and that no simple algebraic method exists that can factor them in polynomial time.
http://primes.utm.edu/lists/small/10000.txt
I am going to deliberately choose two prime numbers that are almost exactly to the ratio 3:5 ( for illustration purposes only!)
Here is the dual-prime composite :- 1851437057
Now let’s multiply it by 15, (the reason why sahould be fu^king obvious!)
1851437057 x 15 = 27771555855
166647.99985298353409097666564141 the square root by Windoze Scientific Calculator…Gosh! surprise! suprprise” NOT it’s almost 166648 (How number of the Beastly!)
166648 x 166648 = 27771555904
27771555904 – 27771555855 = 49 = 7 x 7.
166648 + 7 = 166655 & 166648 – 7 = 166641,
166655 obviously divides by five, 166655/5 = 33331
and 166641 slightly less obviously divides by three, because the sum of the digits also divide by three! 166641/3 = 55547 so 55547 x 33331 = 1851437057

The moment we discover the ratio of the two prime numbers that compose the composite dual-prime, the fu^king game is over! And please believe me, any competant mathematician would NOT find that little task in the least bit complicated!
Arbitrary Precision Calculator Software will factor large dual-prime composite numbers in milliseconds! Trust me on this assertion!

Now go to Wikipedia and look up how Bitcoin Security functions. Do you fancy holding a bag of rotten eggs in a wet brown paper bag? … because that wet paper bag is more secure than Bitcoin’s Security. CAVEAT (from The Royal Military Police, Surveillance Division)
originally posted as a comment at: http://maxkeiser.com/2013/02/20/caution-is-strongly-advised-when-dealing-with-coinbase/

Again, this is not my claim, I am merely posting it so people can take it apart. I'm sure there are some obvious flaws, but I don't follow the post's math nor the actual bitcoin math well enough to see them clearly.
Thanks.
2  Bitcoin / Armory / Armory stuck in offline mode... on: March 09, 2013, 03:03:07 AM
Hi, I just waited for the bitcoin client to update the blockchain, so I could try out armory. (I have been using multibit, but I want to transfer to something more secure)
It took forever (didn't help that my connection sucks...)
But when I start armory, it always says offline mode.
Does anyone know how to troubleshoot this??
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