Chaning encryption password

[kirilltch]

Probably a simple question, but I searched everywhere how to do this and cannot find a way.
I installed knoppix 7 to a usb stick with encrypted persistant home directory of 4gb. While installing it asked me for a password for the encryption. Is it possible to change this password after installation? Everything is working fine, can boot using the password I typed, but want to change it since it is not safe enough.

Thanx in advance.

[Blacksimon]

I know only a way:
recreate a new encrypted overlay with a more strong passfrase
If you want then you could copy your data from the old to the new overlay

if you want to enhance security then you could create an encrypted file with another passphrase to use as a container for sensitive data (passwords, credit card codes, personal photo, etc.) within the same overlay. I like matryoshka !!!