Re: Surrogate factoring and the k/T ratio
- From: "biggus" <dd34e@xxxxxxxxx>
- Date: Sat, 24 Feb 2007 20:19:30 -0600
<jstevh@xxxxxxxxx> wrote in message
news:1172335144.861958.112280@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxFor years I've done research on ways you might factor a target
composite T by factoring some other number I call the surrogate, and
after a lot of failed approaches I realized that the idea
mathematically reduced to a couple of very simple relations:
x^2 ? y^2 mod T
and
k^2 ? 2xk mod T
or k ? 2*x mod T
where the first should be familiar enough, while the second is an
addition needed mathematically by the concept of surrogate factoring.
So after a lot of years of fumbling around I found mathematically I
could reduce the idea quite simply to the given relations.
Now using those requires going to explicit equations:
x^2 = y^2 + aT
and
k^2 = 2xk + bT
and I can add one to the other, and complete the square to find:
(x+k)^2 = y^2 + 2k^2 + (a-b)T
I did not get that result,
x^2 + k^2 = y^2 + aT + 2xk + bT
or
x^2 + k^2 = y^2 + 2xk + (a + b)*T
x^2 + k^2 + 2*x*k = y^2 + 2*x*k + (a + b)*T + 2*x*k
or
(x+k) ^2 = y^2 + 4*x*k + (a + b)*T
Looks like you made two mistakes, you should have a 4, and then you have a
sign mistake at b.
.
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