I remember typing in a long phrase for the password. I wrote all the words I could have possibly used into a plain text file, combining the words I know were used in a certain order. I might have repeated a word or two. I think it is not more than 30 words. the passphrase consists of only lowercase english words.
Things I tried
- compiling John the Ripper (Bleeding Jumbo) and tried running it:
gpg2jackgives me errors. Reading the documentation I do not think it works for symmetric GPG files. I may be wrong on this. It is possible I don't understand how to use it.
- I looked at Rephrase but realized it only recovers passwords for GPG keys, not GPG encrypted files but I thought that would basically be the same? I don't know why it does not work, can't find options to specify the file I want to brute force.
I am looking for a utility or script that I can use to set my computer up and walk away while it attempts to brute-force the passphrase. The only requirement is that it can run on my Gentoo or Ubuntu systems.
At the moment, I don't care what it requires for me to install non-free or free, as long as it works. I considered installing Kali on another drive but I am unfamiliar with it and maybe someone knows a tool it has or something else that might help me.