I have a problem that I can't find solution in official manual. I configured encryption column in SyBase 15.7. I set password using command

sp_encryption system_encr_passwd, 'NewPasswd'
and i had to go afk. I copied my password to Notepad file and KeePass, but when I was afk, brilliant Windows update decide to Restart Computer and I forgot to save both files.
I found that I can change my system_encr_passwd but only using old password which I lost ( generated in keepass ).

Is there any method to recover this password ? I found that all password are stored in sysattributes system tables but i have no idea how to reset it.

I will appreciate every suggest and help.