我想拥有一个加密的目录(而不是homedir!),例如/ testdata。
我已使用以下命令和参数对其进行加密:
root@pc:~# mount -t ecryptfs /testdata/ /testdata/
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]:
Enable plaintext passthrough (y/n) [n]:
Enable filename encryption (y/n) [n]: y
Filename Encryption Key (FNEK) Signature [b9fc92f854a4c85b]:
Attempting to mount with the following options:
ecryptfs_unlink_sigs
ecryptfs_fnek_sig=b9fc92f854a4c85b
ecryptfs_key_bytes=16
ecryptfs_cipher=aes
ecryptfs_sig=b9fc92f854a4c85b
WARNING: Based on the contents of [/root/.ecryptfs/sig-cache.txt],
it looks like you have never mounted with this key
before. This could mean that you have typed your
passphrase wrong.
Would you like to proceed with the mount (yes/no)? : yes
Would you like to append sig [b9fc92f854a4c85b] to
[/root/.ecryptfs/sig-cache.txt]
in order to avoid this warning in the future (yes/no)? : yes
Successfully appended new sig to user sig cache file
Mounted eCryptfs
此命令创建以下文件:
root@pc:~# cat .ecryptfs/sig-cache.txt
b9fc92f854a4c85b
现在,我想更改以前使用的密码。我找到了ecryptfs-rewrap-passphrase
命令,但是不确定是否在正确的路径上:
root@pc:~# ecryptfs-rewrap-passphrase .ecryptfs/sig-cache.txt
Old wrapping passphrase:
New wrapping passphrase:
New wrapping passphrase (again):
Error: Unwrapping passphrase failed [-5]
Info: Check the system log for more information from libecryptfs
/var/log/syslog
说:
Jul 13 13:16:19 pc ecryptfs-rewrap-passphrase: ecryptfs_unwrap_passphrase: PK11_CipherOp() error; SECFailure = [-1]; PORT_GetError() = [-8188]
我在ecryptfs方面拥有新手身份,在此对您有所启发。
ecryptfs-rewrap-passphrase
并不是适合这项工作的工具。也没有home/.ecryptfs
目录,因为我没有带加密目录的用户。有没有办法更改我的手动加密目录上的密码?