Welcome to the new Woodmann RCE Messageboards Regroupment
Please be patient while the rest of the site is restored.

To all Members of the old RCE Forums:
In order to log in, it will be necessary to reset your forum login password ("I forgot my password") using the original email address you registered with. You will be sent an email with a link to reset your password for that member account.

The old vBulletin forum was converted to phpBB format, requiring the passwords to be reset. If this is a problem for some because of a forgotten email address, please feel free to re-register with a new username. We are happy to welcome old and new members back to the forums! Thanks.

All new accounts are manually activated before you can post. Any questions can be PM'ed to Kayaker.

ECC questions

To discuss DES MD5 El-Gamal RSA PGP and others....

ECC questions

Post by BetterWang »

ECC curve E(Fp) y^2 = x^3 + a x + b (mod p)
a point G on the curve.
n points on the the curvie.
private key q and k, with
q*G=0 infinite; k*G=K

first question: is q == n ?
2nd : how to generate q after i choose a b p & G
enctypt and decrypt has the same compute work to do?
3rd : what different with calculate q and k
they both calculate from G, can bruteforce q and k in the same time?
User avatar
Posts: 491
Joined: Tue Mar 06, 2001 12:00 pm

Post by mike »

Frankly, I know almost nothing about ECC. The best I can do is refer you to Certicom's ECC tutorial pages:
http://www.certicom.com/resources/ecc_t ... orial.html

Post by BetterWang »

finally, you replied, thanks anyway!~
Posts: 56
Joined: Mon Sep 24, 2001 12:17 am

Post by Kythen »

I would also recommend check out this book if you can. It helped me out a lot when I was learning about ECC in my number theory class!

Implementing Elliptic Curve Cryptography
by Michael Rosing

source code, etc. available at hxxp://www.manning.com/Rosing
User avatar
Posts: 25
Joined: Fri Jun 13, 2003 7:22 am

Post by nathan »