I have encrypted data on an external HD mounted on /home/username/.Data. I am trying to decrypt it to /home/username/Data.
Although I can successfully read the files contents, I cannot manage to decrypt the filenames.
Here is what I am trying:
$ sudo ecryptfs-add-passphrase --fnek
Passphrase:
Inserted auth tok with sig [aaaaaaaaaaaaaaaa] into the user session keyring
Inserted auth tok with sig [bbbbbbbbbbbbbbbb] into the user session keyring
$ sudo mount -t ecryptfs /home/username/.Data /home/username/Data
Passphrase:
Select cipher:
1) aes: blocksize = 16; min keysize = 16; max keysize = 32
2) blowfish: blocksize = 8; min keysize = 16; max keysize = 56
3) des3_ede: blocksize = 8; min keysize = 24; max keysize = 24
4) twofish: blocksize = 16; min keysize = 16; max keysize = 32
5) cast6: blocksize = 16; min keysize = 16; max keysize = 32
6) cast5: blocksize = 8; min keysize = 5; max keysize = 16
Selection [aes]:
Select key bytes:
1) 16
2) 32
3) 24
Selection [16]: 2
Enable plaintext passthrough (y/n) [n]:
Enable filename encryption (y/n) [n]: y
Filename Encryption Key (FNEK) Signature [aaaaaaaaaaaaaaaa]: bbbbbbbbbbbbbbbb
Attempting to mount with the following options:
ecryptfs_unlink_sigs
ecryptfs_fnek_sig=bbbbbbbbbbbbbbbb
ecryptfs_key_bytes=32
ecryptfs_cipher=aes
ecryptfs_sig=aaaaaaaaaaaaaaaa
Mounted eCryptfs
Now I am using Ubuntu 14.04.1 LTS and ecryptfs-utils 104-0ubuntu1. The external HD was encrypted some months ago, with an older version of Ubuntu.
Any ideas on how to solve it?
EDIT:
Some days latter, I have tried something different. I have run ecryptfs-setup-private
which creates a ~/.Private and a ~/Private directories.
Then I have logged out, logged in, umounted ~/.Private using ecryptfs-umount-private
, copied a directory from the external HD to ~/.Private and mounted it again using ecryptfs-mount-private
.
This way, the directory name was correctly decrypted. However, I cannot read it or change the current directory to it.
$ cd decrypted_dir_name
bash: cd: decrypted_dir_name: No such file or directory
$ ls -l
d????????? ? ? ? ? ? decrypted_dir_name