Re: cannot decrypt file symmetric encrypted
On 8/2/2018 at 3:01 PM, "Dirk Gottschalk via Gnupg-users" wrote: >Am Donnerstag, den 02.08.2018, 14:11 +0200 schrieb Stefano >Tranquillini: >> Hi all, >> last year I encrypted some files, today i tried to decrypt them >but >> the >> decryption fails > >> stefano@~/Downloads/words$ gpg -d words.1.gpg >> gpg: AES256 encrypted data >> gpg: encrypted with 1 passphrase >> gpg: decryption failed: Bad session key ... >Are you sure you used the correct passphrase to decrypt? = It was probably not the correct passphrase. The error that gpg2 gives when entering the wrong passphrase for a symmetrically encrypted message is exactly: gpg: decryption failed: Bad session key This is the same whether you are off for even 1 character of the passphrase, or even if you just press 'enter' without a passphrase at all. Here is a sample symmetrically encrypted message: -BEGIN PGP MESSAGE- Version: GnuPG v1 Comment: Passphrase: sss jA0EBwMCPJYegoCPRBRg0jkBnZym0Pr+ggBpBJYtHlYJgf90SL6YbWa1vcbLdl7H jwxeR5cIFoNhytyUIFxdvrLNP59qkqzLKkI= =pHIB -END PGP MESSAGE- First enter the correct passphrase, sss gpg (V1 and V2) decrypts it as is should be. now enter just ss or anything except the correct passphrase, or just press enter, and you get: gpg: decryption failed: bad key (when using Version 1.4.x) gpg: decryption failed: Bad session key (when using Version 2.x) (Something to do with the string-to-key formation. When the passphrase is off, the 'key' generated from it, is wrong, and when that wrong 'key' is used to attempt decryption, gpg rightfully gives an error message that the 'key' is bad. maybe worthy of a note in the FAQ ... ) vedaal ___ Gnupg-users mailing list Gnupg-users@gnupg.org http://lists.gnupg.org/mailman/listinfo/gnupg-users
Re: cannot decrypt file symmetric encrypted
On Monday, August 6, 2018 9:28:21 AM CEST Stefano Tranquillini wrote: > i don't think that's the case. is there aa way to force the program to ask > passphrase? Try adding "--pinentry mode loopback" to your command. Maybe there is a problem with your installation / pinentry program so that it does not start or you are acidentally using a dummy / test pinentry which provides the wrong passphrase. -- Andre Heinecke | ++49-541-335083-262 | http://www.intevation.de/ Intevation GmbH, Neuer Graben 17, 49074 Osnabrück | AG Osnabrück, HR B 18998 Geschäftsführer: Frank Koormann, Bernhard Reiter, Dr. Jan-Oliver Wagner signature.asc Description: This is a digitally signed message part. ___ Gnupg-users mailing list Gnupg-users@gnupg.org http://lists.gnupg.org/mailman/listinfo/gnupg-users
Re: cannot decrypt file symmetric encrypted
i don't think that's the case. is there aa way to force the program to ask passphrase? On Fri, Aug 3, 2018 at 10:34 PM FuzzyDrawrings via Gnupg-users < gnupg-users@gnupg.org> wrote: > Stefano Tranquillini wrote: > > > the fact is that no passphrase is asked > > When you hit the Enter key after typing your decrypt command, it might > also be closing the pinentry dialog immediately before it can appear on > screen. Make sure you don't hold down the Enter key at all - just tap it > once as briefly as possible. > > ___ > Gnupg-users mailing list > Gnupg-users@gnupg.org > http://lists.gnupg.org/mailman/listinfo/gnupg-users > -- Stefano ___ Gnupg-users mailing list Gnupg-users@gnupg.org http://lists.gnupg.org/mailman/listinfo/gnupg-users
Re: cannot decrypt file symmetric encrypted
Stefano Tranquillini wrote: > the fact is that no passphrase is asked When you hit the Enter key after typing your decrypt command, it might also be closing the pinentry dialog immediately before it can appear on screen. Make sure you don't hold down the Enter key at all - just tap it once as briefly as possible. ___ Gnupg-users mailing list Gnupg-users@gnupg.org http://lists.gnupg.org/mailman/listinfo/gnupg-users
Re: cannot decrypt file symmetric encrypted
the fact is that no passphrase is asked, and I don't know how I can force the system to ask it. On Thu, Aug 2, 2018 at 8:57 PM Dirk Gottschalk via Gnupg-users < gnupg-users@gnupg.org> wrote: > Hi. > > Am Donnerstag, den 02.08.2018, 14:11 +0200 schrieb Stefano > Tranquillini: > > Hi all, > > last year I encrypted some files, today i tried to decrypt them but > > the > > decryption fails > > > stefano@~/Downloads/words$ gpg -d words.1.gpg > > gpg: AES256 encrypted data > > gpg: encrypted with 1 passphrase > > gpg: decryption failed: Bad session key > > > can it be the difference between 1.4 (i guess in july 2017 that was) > > and > > the current one > > I don't now if there's any difference in symmetric encryption between > 1.4.X and 2.2.X. > > > stefano@~/Downloads/words$ gpg --version > > gpg (GnuPG/MacGPG2) 2.2.8 > > libgcrypt 1.8.3 > > > what can I do? > > (i'm on a mac) > > You could download and build the legacy version of GPG and give it a > try. > > Are you sure you used the correct passphrase to decrypt? > > Regards, > Dirk > > -- > Dirk Gottschalk > Paulusstrasse 6-8 > 52064 Aachen, Germany > > GPG: DDCB AF8E 0132 AA54 20AB B864 4081 0B18 1ED8 E838 > Keybase.io: https://keybase.io/dgottschalk > GitHub: https://github.com/Dirk1980ac > > ___ > Gnupg-users mailing list > Gnupg-users@gnupg.org > http://lists.gnupg.org/mailman/listinfo/gnupg-users > -- Stefano ___ Gnupg-users mailing list Gnupg-users@gnupg.org http://lists.gnupg.org/mailman/listinfo/gnupg-users
Re: cannot decrypt file symmetric encrypted
Hi. Am Donnerstag, den 02.08.2018, 14:11 +0200 schrieb Stefano Tranquillini: > Hi all, > last year I encrypted some files, today i tried to decrypt them but > the > decryption fails > stefano@~/Downloads/words$ gpg -d words.1.gpg > gpg: AES256 encrypted data > gpg: encrypted with 1 passphrase > gpg: decryption failed: Bad session key > can it be the difference between 1.4 (i guess in july 2017 that was) > and > the current one I don't now if there's any difference in symmetric encryption between 1.4.X and 2.2.X. > stefano@~/Downloads/words$ gpg --version > gpg (GnuPG/MacGPG2) 2.2.8 > libgcrypt 1.8.3 > what can I do? > (i'm on a mac) You could download and build the legacy version of GPG and give it a try. Are you sure you used the correct passphrase to decrypt? Regards, Dirk -- Dirk Gottschalk Paulusstrasse 6-8 52064 Aachen, Germany GPG: DDCB AF8E 0132 AA54 20AB B864 4081 0B18 1ED8 E838 Keybase.io: https://keybase.io/dgottschalk GitHub: https://github.com/Dirk1980ac signature.asc Description: This is a digitally signed message part ___ Gnupg-users mailing list Gnupg-users@gnupg.org http://lists.gnupg.org/mailman/listinfo/gnupg-users
cannot decrypt file symmetric encrypted
Hi all, last year I encrypted some files, today i tried to decrypt them but the decryption fails stefano@~/Downloads/words$ gpg -d words.1.gpg gpg: AES256 encrypted data gpg: encrypted with 1 passphrase gpg: decryption failed: Bad session key can it be the difference between 1.4 (i guess in july 2017 that was) and the current one stefano@~/Downloads/words$ gpg --version gpg (GnuPG/MacGPG2) 2.2.8 libgcrypt 1.8.3 what can I do? (i'm on a mac) -- Stefano ___ Gnupg-users mailing list Gnupg-users@gnupg.org http://lists.gnupg.org/mailman/listinfo/gnupg-users
