Title: what is the hash rate of a human? Post by: Costia on January 28, 2012, 07:50:05 AM maybe i can pay African kids in btc :)
Title: Re: what is the hash rate of a human? Post by: jCole on January 28, 2012, 11:46:33 PM maybe i can pay African kids in btc :) hmmm,, it depends if the humans have GPU's installed already. Title: Re: what is the hash rate of a human? Post by: paraipan on January 29, 2012, 12:01:32 AM maybe i can pay African kids in btc :) hmmm,, it depends if the humans have GPU's installed already. nah, "human" cpu works too http://www.di-mgt.com.au/rsa_alg.html Quote This is an extremely simple example using numbers you can work out on a pocket calculator (those of you over the age of 35 45 can probably even do it by hand). Select primes p=11, q=3. n = pq = 11.3 = 33 phi = (p-1)(q-1) = 10.2 = 20 Choose e=3 Check gcd(e, p-1) = gcd(3, 10) = 1 (i.e. 3 and 10 have no common factors except 1), and check gcd(e, q-1) = gcd(3, 2) = 1 therefore gcd(e, phi) = gcd(e, (p-1)(q-1)) = gcd(3, 20) = 1 Compute d such that ed ≡ 1 (mod phi) i.e. compute d = e-1 mod phi = 3-1 mod 20 i.e. find a value for d such that phi divides (ed-1) i.e. find d such that 20 divides 3d-1. Simple testing (d = 1, 2, ...) gives d = 7 Check: ed-1 = 3.7 - 1 = 20, which is divisible by phi. Public key = (n, e) = (33, 3) Private key = (n, d) = (33, 7). This is actually the smallest possible value for the modulus n for which the RSA algorithm works... Title: Re: what is the hash rate of a human? Post by: ForceField on February 01, 2012, 08:21:21 PM Physical or mental hash rate?
Mental: Like doing mathematics to solve a code. or Physical: Like cranking a generator to power something that cracks the code. |