Commit Graph

351 Commits

Author SHA1 Message Date
Alexandre Pujol
6f89dbd2fe Add '--shared' in order to activate sharing support.
Sharing feature is a very sensitive action, the user needs to trust the
GPG public key it is going to share its tomb. This is why this feature
needs to be explicitly activated using in more the flag --shared
on the key encryption commands.
2017-02-03 23:57:52 +00:00
Alexandre Pujol
15164f5578 Add sharing support for tomb key.
A tomb key can be encrypted with more than one recipient. Therefore, a
tomb can be shared between different user. The multiple recipients are
given using the -r (or/and -R) option and must be separated by ','.

Multiple recipients can be given for the commands: forge, setket and passwd
2017-02-03 23:57:52 +00:00
Alexandre Pujol
53b7460274 Add tomb setkey support for GPG key 2017-02-03 23:57:52 +00:00
Alexandre Pujol
a200448de2 Add tomb resize support for GPG key 2017-02-03 23:57:52 +00:00
Alexandre Pujol
47ddeebbc4 Add support to change the GPG key used to encrypt a tomb key. (tomb passwd) 2017-02-03 23:57:52 +00:00
Alexandre Pujol
5a35ab9668 Improve key encryption/decryption using GPG key.
Decryption/Encryption works without these improvment, however, there
are needed in order to have clean key (without empty line).

Moreover, tests showed not doing cause troubles when changing the GPG key
used to encrypt a tomb key.
2017-02-03 23:57:52 +00:00
Alexandre Pujol
8f8dc0a0d4 Improve exhumation of key when opening a tomb 2017-02-03 23:57:52 +00:00
Alexandre Pujol
b23e9aa028 Add --tomb-pwd support for GPG key on steganography functions 2017-02-03 23:57:52 +00:00
Alexandre Pujol
d1b016b3c1 Add GPG recipient support for steganography function (bury and exhume)
The tomb policy is to use the same password to encrypt
the key and to bury it. However, steganography cannot be
done with GPG key. Therefore, we check the user can
decrypt the tomb with its GPG key and we ask for a
steganography password. Having different method is a
technical requirement and should enhance security.
2017-02-03 23:57:52 +00:00
Alexandre Pujol
2d516cbaed Check if the GPG key given is a valid.
Add the function 'is_valid_recipients'
A key is valid if both public and private keys are present
in the GPG database
2017-02-03 23:57:52 +00:00
Alexandre Pujol
902860fd9f Add GPG recipient support when generating a new tomb key 2017-02-03 23:57:52 +00:00
Alexandre Pujol
6c0d89cab1 Use -r option to shortcut interactive tomb password popup 2017-02-03 23:57:52 +00:00
Alexandre Pujol
9ee0a1550e Add -r option to enable GPG key integration.
The flag -r (for recipient like in GPG itself) takes a mandatory
argument, the GPG key ID.
2017-02-03 23:57:52 +00:00
Narrat
537bb6aaeb Use of lsof to fix slam for specific mountpoint
Apparantly fuser didn't report back, if the tomb was mounted in a subdir of /run (whereas /run itself is often a tmpfs mount).
With no list of process ids those couldn't be killed, so slamming the tomb failed.
lsof is capable to report back the sought information.

Fixes #220

Additionally fixing the debug output, where a hardcoded mountpoint was used
2017-02-03 17:46:16 +01:00
Jaromil
9110ccd9d1 really use key-size 512 on luksFormat 2017-01-29 21:54:46 +01:00
Jaromil
7a98ee8ba6 change forged key lenght to 512 bits
Addresses issue #238: as 512 bit key length triggers use of AES256.
Apparently so far tombs used AES128 due to key length 256.
Change passes all tests and has no regression implications.
2017-01-21 23:50:57 +01:00
Daniel Rodriguez
42ae73d727 Sync translations with POEditor 2017-01-03 12:00:29 +01:00
Jaromil
843b7fdfc4 remove change of ownership when mounting tombs
The chmod/chown launched on the mounted volume is not really effective
for security, plus the UID is not correctly guessed when tomb is
launched using sudo. It is now up to the user to correctly set
ownership and permission on mounted volumes. There is also one less
check on the ownership of the tomb file which was failing with a
warning in the same case.
2017-01-02 11:04:08 +01:00
Jaromil
cb699189e7 small linting fixes 2017-01-02 06:13:52 +01:00
Jaromil
18743c82a5 code linting
small cleanup using shellcheck, also available as 'make lint'
2017-01-02 06:03:29 +01:00
Jaromil
6f4cfd626c prefer ascii single-quotes to utf8 2017-01-02 06:02:50 +01:00
Jaromil
d41347fe22 documentation updates for release 2016-12-29 19:20:48 +01:00
Jaromil
7b72f07f96 switch shebang to use /usr/bin/env
this is a more generic approach to shebang which supports interpreters
when installed anywhere in the current path.
2016-12-29 13:49:03 +01:00
Jaromil
14cba81f6e fix is_valid_tomb check for already mounted tombs
also added some more verbosity on debug
2016-12-26 20:40:23 +01:00
Jaromil
db976a5210 improve wrapping of key generation
gen_key now avoids adding a final newline to file (addressing #226)
and provides more debugging information from the gpg  process.
2016-12-26 20:19:01 +01:00
Jaromil
f5375c61fe improvement over previous gpg_decrypt fix
now also avoiding the use of `read` shell built-in
2016-12-26 19:04:54 +01:00
Jaromil
df75c39a58 new parsing for gpg_decrypt function
this new parser works with all ZSh versions and brings overall
improvement by eliminating the invocation of exernal binary `grep`
over the secret data.
2016-12-26 12:12:34 +01:00
Jaromil
844a886da1 fix sudo execution (patch by robertmx in #223)
tested also in #228, this stops overwriting the $USERNAME
variable which is not really useful (it was used in the previous
privilege escalation model)
2016-11-18 19:00:47 +01:00
Jaromil
101b89f0be use head directly without cat in post-hooks
less is more...
2016-11-18 13:56:44 +01:00
Jaromil
fa44f46eba better documentation for kdf
also correctly use _failure on fatal error using --kdf
2016-11-18 13:56:44 +01:00
mandeepbhutani
50719fb06f Changed message when encrypted swap found to something more informative
Changed message to detail all swap partitions
2016-10-16 11:40:26 -05:00
Jaromil
8f0b2943ce documentation improvements for kdf and dm-crypt cipher choice 2016-01-09 10:16:42 +01:00
Jaromil
a08cb6e0de forgot to bump the version into the script 2015-12-31 13:33:36 +01:00
Jaromil
46c41f3572 fixes support for bind-hooks paths with whitespace
refactored list_tomb_binds to parse /proc/mounts
also works around Debian's infamous \040(deleted) bug
also minor fix in regex umount for more recent zsh
closes bug #222
2015-12-30 17:33:23 +01:00
Jaromil
15273c9f19 fix to last open date saved
now using /.last in tomb to save and retrieve the time when tomb
was last opened, fixes behaviour with tomb filenames containing dots.
2015-12-30 14:35:58 +01:00
Jaromil
63464fa5ea docs improvement
I'm assuming gettext will approximate a match with the string
without updating all .po files. This is only increasing the length
2015-12-02 16:34:22 +01:00
Jaromil
a9f5a32459 completed transition of all doc strings to mention mebibytes (MiB) 2015-11-25 17:55:54 +01:00
Jaromil
cecde4e116 fixed a typo in EUID check 2015-11-25 17:41:17 +01:00
Jaromil
9090bfaff9 easier to continue resizing if interrupted
if resize is launched at same size, will run partition resize
helps continuing if i.e: pinentry expired waiting for password
after a long resize while operator is away: jurt rerun resize command
2015-11-07 14:20:43 +01:00
Narrat
9dd81b505b Correct spelling and whitespaces 2015-09-21 00:57:21 +02:00
Jaromil
b07224beab fix to username parsing in passwd
now using getent, light edit of hellekin's fix in #198
2015-07-23 15:18:13 +02:00
Emil Lundberg
4730b6d211 Fix comment typo: --use-random => --use-urandom 2015-07-07 09:56:16 +02:00
Jaromil
b8447dbf24 documentation update and small swish-e fix
The fix is due to the new naming scheme without .tomb extension recently
introduced for mountpoints. While testing this a problem arised with
swish-e related to compression of indexes, to be addressed.
2015-07-06 17:33:44 +02:00
Jaromil
e8ca2998b9 improved debugging for pinentry execution 2015-07-04 11:28:37 +02:00
Jaromil
55d3263cac Parse only untranslated GNUPG output
this avoids getting in the way utf8 chars like non-breakable space
that will hang ZSh in versions previous to 5.0.8, fix #205
2015-07-02 12:47:29 +02:00
Jaromil
eada0538c9 Delete mountpoint when tomb is closed (fix #149)
two bugs were left behind by the last refactoring, one about
consistency of the mountpoint naming (now using $TOMBNAME everywhere,
without the added .tomb extension as per #180), the other about a
missing _sudo to prefix rmdir commands.

Test suite has been updated accordingly.

This fix introduces a mandatory condition for the next update: all
tombs must be closed when upgrading the tomb script, else it will not
be able to correctly close them.
2015-06-26 11:47:19 +02:00
Jim Turner
1dff3676ce Remove inaccurate comment 2015-03-01 02:17:48 -05:00
Jim Turner
1919b29c1f Remove unused variable 2015-03-01 02:17:48 -05:00
hellekin
8aa1c0c6a5 Clarify code and documentation (thanks @boyska) 2015-02-21 23:04:50 -03:00
boyska
5f3ec68c38 FIX kdf iteration count 2015-02-20 19:03:21 +01:00
hellekin
fe504e4a19 Remove tabs 2015-02-20 11:42:49 +01:00
hellekin
8233278ce0 Remove leftover and notify #163 :) 2015-02-20 11:42:49 +01:00
hellekin
bad0173352 Simplify patch 2015-02-20 11:42:49 +01:00
hellekin
e4afe6aefa Recover legacy code for systems using util-linux < 2.22 2015-02-20 11:42:49 +01:00
hellekin
de418d00c9 Add detection of plain swap on encrypted volumes. (Fixes #163)
Previously, the code was relying on `file` and `dmsetup` to detect
encrypted swaps, but it was missing plain swaps on encrypted
volumes. Using `lsblk` adds this detection and simplifies the test.

Thanks @fsLeg for reporting the issue, and @boyska for fixing it.
2015-02-20 11:42:49 +01:00
Jaromil
ec5d72ae9a TODO updates and a small comment correction 2015-02-20 11:40:45 +01:00
Jim Turner
346a31ac5b Remove redundant test for $DISPLAY
This block is already wrapped in the `else` block of the same test for
the `$DISPLAY` variable, so this test is redundant.
2015-02-17 23:01:46 -05:00
Jim Turner
030704f5f3 Remove outdated error message
Commit 5dbcabdf26 removed the `chown` call
in `_tmp_create()` but not the associated error message. This commit
removes that error message since it is just dead code.
2015-02-17 01:33:29 -05:00
Jaromil
2598c11893 avoid enforcing .tomb extension to allow better deniability, fix #180 2015-02-08 17:41:01 +00:00
Jaromil
15ff5abe61 Sudo prompt for password made more visible to distinguish from other password prompts, addressing #171 2015-02-08 17:33:10 +00:00
Jaromil
46583fa445 tidying up the documentation 2015-01-30 02:00:07 +01:00
Jaromil
181103bc56 Make pinentry work even if LANG env var is not set (default to C, fix #188) 2015-01-29 18:11:25 +01:00
Jaromil
90e46854bc handle failure in load_key when key is not retrieved from stdin 2015-01-27 17:31:09 +01:00
Jaromil
ca012e8744 supports default mount also on /run/media/jrml (udisk2 compat). minor cleanups to default mountpoint generation. fix #186 2015-01-21 12:17:09 +01:00
Jaromil
4788ee6834 Avoid proceeding to umount if a bind_mount is busy and close is not slamming. 2015-01-17 02:29:57 +01:00
Jaromil
88c51f89f0 Improved validity check on tomb file. Introduces use of zsh/stat module 2015-01-17 02:14:38 +01:00
Jaromil
9b0364d34c preserve current GTK-2.0 theme when using pinentry-gtk-2 (fix #185) 2015-01-13 10:46:53 +01:00
Daniel "GDrooid" Rodriguez
30669bb9fa Use spaces instead of tabs. 2015-01-09 17:33:07 +01:00
Daniel "GDrooid" Rodriguez
bd7300aa3e Update .po files and fix typo in tomb executable. 2015-01-09 17:11:14 +01:00
Jaromil
d8c5cd24d1 better checks on file creation, both on dig and forge 2015-01-04 21:02:27 +01:00
hellekin
1068033e93 Address non-zero exit code on mount attempt 2014-12-27 08:13:15 -03:00
hellekin
45c5b53cc4 Restore -o and make explicit it means 'options local to subcommand' (Closes #182) 2014-12-26 23:42:58 -03:00
hellekin
f1c6245c80 Honor mount options (fixes #181) and disambiguate -o (fixes #182) 2014-12-26 20:54:51 -03:00
Jaromil
c56bd74e22 minor versioning 2014-12-25 02:48:49 +01:00
Jaromil
d88fd5c9cb release versioning 2014-12-21 22:08:32 +01:00
Jaromil
c436b76a85 typo fix for gpg 1.4.11 affecting mint 13 and ubuntu 12, closes #175 2014-12-21 21:51:15 +01:00
hellekin
b0c63ebf12 lapsus: not _notice, but _message 2014-11-27 13:40:58 -03:00
hellekin
29040b2d7f Replace tab with spaces 2014-11-27 13:01:35 -03:00
hellekin
f7ea486e13 Remove extra space and split message for accuracy (fixes #170) 2014-11-27 12:47:12 -03:00
Jaromil
0d690bf142 documentation and makefile scripts updates for release 2014-11-26 20:28:28 +01:00
gdrooid
de65325fc3 [i18n] Don't localize legal output. 2014-11-26 19:35:47 +01:00
Jaromil
bbe9a49ec3 Direct handling of pinentry execution
We skip distro wrappers here since they interfere with stdin/out
As usual: better to have less intermediaries.
2014-11-26 17:45:31 +01:00
Jaromil
7a8a8666ba addressing comments on last commit with a few fixes 2014-11-26 17:25:47 +01:00
gdrooid
47652747c3 [l10n] Update pot file. 2014-11-25 22:51:33 +01:00
Jaromil
f218c644ab KDF key handling cleanup 2014-11-25 03:25:27 +01:00
Jaromil
5dbcabdf26 Removed old privilege escalation model
This commit refactors the handling of password input by eliminating
all intermediary programs and relying only on ZSh, hence improving
overall security against rootkits and such.

Also the way sudo is used is now greatly simplified and there is no
privilege escalation at boot: sudo is executed inside Tomb by being
prefixed in front of those programs needing it.

All tests passed.
2014-11-25 02:37:05 +01:00
Jaromil
e6075d08ce really fail to not overwrite keys when forging 2014-11-24 20:06:45 +01:00
gdrooid
fb686db8eb Finished fixing #164 2014-11-24 17:02:30 +01:00
gdrooid
a46da1cc23 Fix #164 2014-11-23 22:47:03 +01:00
Jaromil
a6a784f1ef swish-e indexing change and whoami cleanup
swish-e now creates a .swishrc config file inside the tomb so that
users can tweak its configuration by hand.
whoami() is also cleaned up, pending a fix for slackware usage.
2014-11-23 21:53:44 +01:00
Jaromil
2480c89210 small security measure against exporting all vars 2014-11-23 18:26:06 +01:00
Jaromil
99581a5faa whitespace cleanup and correct indentation to 4 spaces (no tabs) 2014-11-23 18:25:42 +01:00
Jaromil
aba0fa5191 Avoid using a tempfile on every key decryption
A tempfile was often used by Tomb in order to parse the stderr output of
gpg and detect if the password is correct or not. The tempfile was not
holding any secret information (see #162) yet this is an improvement for
Tomb's deniability since there is now much less going on in the temp
firectory.
2014-11-23 16:58:43 +01:00
Jaromil
c0bd822312 fix for #165 2014-11-23 16:27:09 +01:00
Jaromil
a10d6af804 Removed handling of temporary directory
Added the --tmp flag for manual selection of the temporary directory, whose security should really be up to sysadmins when configuring operating systems. Default is ZSh TMPPREFIX usually set to /tmp/zsh which, if not existing, will be created as world writable with a sticky bit.

This commit also includes a cleanup of commandline options and a fix to swap check.
2014-11-23 14:49:41 +01:00
Jaromil
6bb1385c69 Security fix to setkey
Now there is no more writing of cleartext secrets in any tempfile,
the last case was in setkey and is now eliminated. Tempfile creation
is cleaner. Related to issue #162
2014-11-22 01:40:26 +01:00
Jaromil
f2efa69001 Read setting of pinentry-program in gpg-agent.conf
also fixes the check if the tomb is already open
2014-11-22 00:23:57 +01:00
Jaromil
4d82b20199 small fix to whitespace and leftover newline tests 2014-11-21 22:32:38 +01:00
Jaromil
e48c7c4a85 Added new --unsafe mode: -k cleartext
Using the 'cleartext' name for a key will read it from stdin and
expect it to be unencrypted. This is an unsafe mode of operation,
but useful i.e. to open remote tombs by piping the key over ssh,
or using a different software than Tomb to de/crypt keys.

This commit also renames the flag --unsecure-dev-mode into --unsafe
and includes a minor fix to the last opened date shown on open.

Addressing issue #161
2014-11-21 22:25:43 +01:00
Jaromil
b7f4e3a7fd Use print for non-escaped piping of secret
after fixing issue #154 with echo here we revert to using print with
options -R -n which sort the same effect. Print is preferred since it
executes the built-in command without any possible ambiguity. We don't
want to expose secrets to an external executable in case of a simple
attack that would change the env PATH to use a rootkitted echo.
2014-11-20 15:53:45 +01:00
Jaromil
489b3582cb Disable escapes when piping secrets
Switched to use echo with -E flag to disable escapes in keys: escape
strings were discarded cryptsetup tomb operations when they were present
in the decoded key random passphrase. Issue #154

The solution adopted here includes wrapping all cryptsetup operations to
unify the behaviour adopted.

Worth noting that this problem possibly breaks all tombs and keys
created using the unstable Tomb from git development in the past 2
months. Regression tests with previous stable releases are OK.
2014-11-20 09:59:11 +01:00
gdrooid
6ce45a6f84 [i18n] Update translation files. 2014-11-16 17:30:59 +01:00
Jaromil
a568cdf546 imported python tomber into extras
more documentation updates
2014-11-16 15:21:11 +01:00
Jaromil
bbb290c81a documentation updates 2014-11-16 13:55:51 +01:00
Jaromil
a0db66b18e added also explicit stdout redirection to command -v 2014-11-16 13:11:42 +01:00
Jaromil
9f39d671a0 reverted to use command -v instead of hash
according to analysis made with @gdrooid
2014-11-16 12:38:31 +01:00
Jaromil
da46cbcd31 using zsh hash function instead of command -v to check for bins in path, using plain 2>/dev/null redirection everywhere 2014-11-16 11:37:30 +01:00
Jaromil
982c7591f2 avoid gettext being a requirement and list optional tools found in version output 2014-11-16 11:34:35 +01:00
Jaromil
aa35441d69 this should fix lo_mount() as reported in #154 2014-11-16 11:09:43 +01:00
Jaromil
d4c4a82d73 more detailed help messages and exclude videos from index 2014-11-15 04:14:40 +01:00
Jaromil
249c3cec1d work also without gettext. versioning 2014-11-15 03:14:03 +01:00
Jaromil
8c8ab3fc5c removed some minor debugging tests 2014-11-15 02:41:10 +01:00
Jaromil
edbd950120 switched to zsh/regex and zsh/mapfile
many operations moved to builtin zsh internals, improving speed
also fixes to the username detection and to the losetup check
2014-11-15 02:38:53 +01:00
Jaromil
4ce8771e99 Correct wrapping of cli argument arrays
Fixes also piping to ssh for remote tomb commands
This fix was suggested by @brianmay on #139
2014-11-14 20:12:30 +01:00
Jaromil
82e0533892 message fix 2014-11-14 19:43:26 +01:00
Jaromil
a7d7fad6a8 last minor fix to use _plot() instead of is_valid_tomb() on tomb creation commands 2014-11-14 19:27:57 +01:00
Jaromil
949a8c19e7 correct rendering of dev mapper filename and use of is_valid_tomb 2014-11-14 19:13:48 +01:00
Jaromil
106c4ab32e fixed resize 2014-11-14 18:51:33 +01:00
Jaromil
98ab49315a fixes to _tmp_create and its usage 2014-11-14 18:42:11 +01:00
Jaromil
828579e10d better parses for bind-hooks
rw global vars VERSION etc facilitate re-source in test environment
2014-11-14 17:42:49 +01:00
Jaromil
9097a69631 indentation and small fix for umount to avoid warnings and correct check 2014-11-14 14:25:49 +01:00
Jaromil
c73f00eb19 adjusting strings to facilitate translation 2014-11-04 16:45:57 +01:00
Jaromil
943a46ef60 removed create_tomb, left deprecation notice 2014-11-04 16:45:37 +01:00
Jaromil
181f0fc636 revert to swish-e again 2014-11-04 16:45:08 +01:00
hellekin
6c71f2c94b [cleanup] Process subcommands 2014-11-04 15:33:12 +01:00
hellekin
8df1575a44 [cleanup] Replace 'test' with [[ expr ]] 2014-11-04 15:33:12 +01:00
hellekin
b857122d7d [cleanup] _load_key 2014-11-04 15:32:46 +01:00
hellekin
27ec914870 [cleanup] Fix path to user's temporary files 2014-11-04 15:32:46 +01:00
hellekin
fb12b50d7d [cleanup] ask_password 2014-11-04 15:32:45 +01:00
Jaromil
dac8e4acae remove base2 notation for flags
fixes bug that prevented to evaluate correctly 1/0 values for optional extensions
2014-11-04 15:32:45 +01:00
hellekin
788c133f94 [cleanup] More test cleanups 2014-11-04 15:32:45 +01:00
hellekin
14ed549a55 [cleanup] Consolidate temporary file creation 2014-11-04 15:32:45 +01:00
hellekin
226fd2a0f8 [cleanup] Only add directory to mounted if it's actually mounted 2014-11-04 15:32:45 +01:00
hellekin
fda78fbf8a [cleanup] Disallow empty TOMBNAME 2014-11-04 15:32:45 +01:00
hellekin
0754e9acd2 [cleanup] "Safety functions" section
- more documentation
  - follow style guide
  - rationalize check_swap
2014-11-04 15:32:45 +01:00
hellekin
3e91b7bb9b [cleanup] Document options functions 2014-11-04 15:32:45 +01:00
hellekin
cd1ceac92e [cleanup] Introduce _whoami ; clean ; pass all tests with or without sudo 2014-11-04 15:32:44 +01:00
hellekin
b053898300 [cleanup] Privatize {,_}endgame event 2014-11-04 15:32:44 +01:00
hellekin
8e38a1c31b [cleanup] Uppercase loop devices 2014-11-04 15:32:44 +01:00
hellekin
03a3456c98 [cleanup] Uppercase temporary files 2014-11-04 15:32:44 +01:00
hellekin
43225c790e [clenaup] Uppercase secrets 2014-11-04 15:32:44 +01:00
hellekin
fe01a62467 [cleanup] Uppercase TOMBKEY* 2014-11-04 15:32:44 +01:00
hellekin
b91573dde5 [cleanup] Introduce _plot 2014-11-04 15:32:44 +01:00
hellekin
19abe7cf85 [cleanup] Uppercase global command context 2014-11-04 15:32:44 +01:00
hellekin
0e9453ebd8 [cleanup] Remove unused global variable 2014-11-04 15:32:44 +01:00
hellekin
b340721307 [cleanup] Uppercase global OPTS 2014-11-04 15:32:43 +01:00
hellekin
9539d0cc4b [cleanup] Formalize tests for flags 2014-11-04 15:32:43 +01:00
hellekin
da183aa689 [cleanup] Fix log of commands by using arrays consistently 2014-11-04 15:32:43 +01:00
hellekin
b721de0ec1 Starting cleanup 2014-11-04 15:32:43 +01:00
Jaromil
3d29d6a422 use swish-e and not the debian-specific wrapper, fix #136 2014-10-24 01:20:36 +02:00