I was trying to findout the reason for the same.
Wasted lot of time in checking out through my ubuntu 11.10 version but still couldn't get any solution.
svn: OPTIONS of 'https://mysite.com/myrepository/project1': SSL handshake failed: SSL error: Key usage violation in certificate has been detected. (https://mysite.com)
I finally foundout that its problem of libneon after googling alot.