2012.10.09 22:10:33 (255762195042938880) from Daniel J. Bernstein, replying to "Tanja Lange (@hyperelliptic)" (255753769407639553):
Looks like a reinvention of 2000 Schoenmakers (published 2003 Stam). 2001 Akishita and my paper are faster. @hyperelliptic @matthew_d_green
2012.10.09 21:18:14 (255749028397064192) from "Tanja Lange (@hyperelliptic)":
Ridiculous, new patent on "Simultaneous scalar multiplication method" reusing doubling - in Montgomery form. but that's been out since 2006.
2012.10.09 21:26:57 (255751221758013441) from "Matthew Green (@matthew_d_green)", replying to "Tanja Lange (@hyperelliptic)" (255749028397064192):
@hyperelliptic What's the (provisional) filing date?
2012.10.09 21:37:04 (255753769407639553) from "Tanja Lange (@hyperelliptic)", replying to "Matthew Green (@matthew_d_green)" (255751221758013441):
@matthew_d_green patent refers to 2 dates: nov 2005 and Nov 2006; don't know what's in them. http://cr.yp.to/papers.html#diffchain is online since 2006.02.19