I wanted to change my login password on my personnal account on my Gnu Linux Debian Wheezy, so I do this :
$ su root -
# cd /home/.ecryptfs/seb/.ecryptfs
# ecryptfs-rewrap-passphrase wrapped-passphrase
I gave the old password ( my login password ), then the new, then I changed my login passwd :
# passwd seb
And after a reboot, I fell on this nice message :
Could not update ~/.ICEauthority
I could not enter on my own account :-(((