I created a CA and several certificates below that one (Version 0.8.1). I then ran c_rehash on the exported files. Curiously, they all receive the same hash value, only the instance counter increases. Have I done something wrong?
I assume all your certificates have the same subject,
because c_rehash only hashes the subject. The same subject results in the same hash.
XCA also displays the hash on the subject page of the certificate details.
Hint: the hash algorithm changed from openssl 0.9.8 to 1.0.0
(the same subject results in different hashes depending on the openssl version.)
Yes indeed, all share the same subject! Thank You Chris, I was a little worried.
PS: This is with openssl 0.9.8k. xca 0.8.1 (I will wait for ubuntu 12.4.1 with upgrade), which already is a very polished piece of software.