b732881518
configfile: switch to 128-bit IVs for master key encryption
...
There is no security reason for doing this, but it will allow
to consolidate the code once we drop compatibility with gocryptfs v1.2
(and earlier) filesystems.
2017-03-05 18:03:03 +01:00
c9f4400e6d
Replace all calls to naked panic() with log.Panic()
...
We want all panics to show up in the syslog.
2016-12-10 11:54:36 +01:00
012152f3d1
fusefrontend: I/O error instead of panic on all-zero nonce
...
Running xfstests generic/075 on tmpfs often triggered a panic
for what seems to be a tmpfs bug.
Quoting from the email to lkml,
http://www.spinics.net/lists/kernel/msg2370127.html :
tmpfs seems to be incorrectly returning 0-bytes when reading from
a file that is concurrently being truncated.
2016-10-28 21:18:36 +02:00
b764917cd5
lint fixes
2016-10-04 23:18:33 +02:00
a2510efe12
reverse: use per-purpose nonce generation
...
Also pull all the deterministic nonce code into fusefrontend_reverse
to greatly simplify the normal code path.
2016-09-29 21:56:49 +02:00
e9bb8b800c
reverse: switch from GCM-SIV to AES-SIV
...
GCM-SIV is not yet finalized, and the reference implemenation is
painfully slow at about 2 MB/s. Switch to AES-SIV.
2016-09-26 23:25:13 +02:00
abd61d968d
contentenc: rename constant "IVBitLen" to "DefaultIVBits" and clarify comment
...
128-bit IVs are NOT used everywhere.
2016-09-25 18:40:29 +02:00
12808138ef
contentenc: add "ExternalNonce" mode
...
This will be used for strong symlink encryption in reverse mode.
2016-09-25 17:44:19 +02:00
7bbf6ad6ea
reverse: derive file ID and block IVs from file paths
2016-09-25 16:43:17 +02:00
5f726aaa9d
contentenc: add GCM-SIV support
...
Also add ReverseDummyNonce nonce generation.
2016-09-25 16:43:17 +02:00
7f87ed78f2
cryptocore: add support for GCM-SIV
2016-09-25 16:43:17 +02:00
e42ab3908d
reverse: print value in file offset panic
2016-09-25 16:43:17 +02:00
5931eea387
contentenc: add helpers for reverse mode
...
Add the reverse variant of DecryptBlocks etc:
* EncryptBlocks
* JointPlaintextRange
* ExplodeCipherRange
2016-09-25 16:43:17 +02:00
1d62086742
conentenc: handle zero-sized files in PlainSizeToCipherSize
...
Previously caused an integer underflow.
2016-09-25 16:43:17 +02:00
e8a234f658
Add godoc comments to all internal packages
2016-07-06 21:51:25 +02:00
04ad063515
fusefronted: move Truncate() and Allocate() to their own file
...
These are large complicated implementations that will share some
code.
2016-07-02 15:35:06 +02:00
7b22b426b9
contentenc: rename PlaintextRange and CiphertextRange
...
The name could be misunderstood and actually caused a bug:
doWrite used to always preallocate 4128 instead of the actual
data length.
2016-07-02 00:12:36 +02:00
f2b4d57068
fusefrontend: coalesce grows in Truncate()
...
We were growing the file block-by-block which was pretty
inefficient. We now coalesce all the grows into a single
Ftruncate. Also simplifies the code!
Simplistic benchmark: Before:
$ time truncate -s 1000M foo
real 0m0.568s
After:
$ time truncate -s 1000M foo
real 0m0.205s
2016-07-01 23:32:27 +02:00
7e92ebe16a
Rename nametransform, contentenc source files
...
Let's have shorter names, and merge *_api.go into the "main"
file.
No code changes.
2016-06-16 19:02:47 +02:00
6c3f97399a
Rename internal "toggledlog" package to "tlog"
...
tlog is used heavily everywhere and deserves a shorter name.
Renamed using sed magic, without any manual rework:
find * -type f -exec sed -i 's/toggledlog/tlog/g' {} +
2016-06-15 23:30:44 +02:00
37a9b4c3ee
Enable openssl in tests to support old Go versions
...
Go 1.4 and older do not support 128-bit IVs which caused
the tests to panic.
2016-03-03 00:59:58 +01:00
653d4a619c
longnames part II: Rename, Unlink, Rmdir, Mknod, Mkdir + tests
2016-02-07 14:02:09 +01:00
c74772bc8d
Run go fmt
2016-02-06 20:23:36 +01:00
b0ee5258b1
Fix tests - were broken by the refactoring
2016-02-06 20:22:45 +01:00
2b8cbd9441
Major refactoring: Split up "cryptfs" into several internal packages
...
"git status" for reference:
deleted: cryptfs/cryptfs.go
deleted: cryptfs/names_core.go
modified: integration_tests/cli_test.go
modified: integration_tests/helpers.go
renamed: cryptfs/config_file.go -> internal/configfile/config_file.go
renamed: cryptfs/config_test.go -> internal/configfile/config_test.go
renamed: cryptfs/config_test/.gitignore -> internal/configfile/config_test/.gitignore
renamed: cryptfs/config_test/PlaintextNames.conf -> internal/configfile/config_test/PlaintextNames.conf
renamed: cryptfs/config_test/StrangeFeature.conf -> internal/configfile/config_test/StrangeFeature.conf
renamed: cryptfs/config_test/v1.conf -> internal/configfile/config_test/v1.conf
renamed: cryptfs/config_test/v2.conf -> internal/configfile/config_test/v2.conf
renamed: cryptfs/kdf.go -> internal/configfile/kdf.go
renamed: cryptfs/kdf_test.go -> internal/configfile/kdf_test.go
renamed: cryptfs/cryptfs_content.go -> internal/contentenc/content.go
new file: internal/contentenc/content_api.go
renamed: cryptfs/content_test.go -> internal/contentenc/content_test.go
renamed: cryptfs/file_header.go -> internal/contentenc/file_header.go
renamed: cryptfs/intrablock.go -> internal/contentenc/intrablock.go
renamed: cryptfs/address_translation.go -> internal/contentenc/offsets.go
new file: internal/cryptocore/crypto_api.go
renamed: cryptfs/gcm_go1.4.go -> internal/cryptocore/gcm_go1.4.go
renamed: cryptfs/gcm_go1.5.go -> internal/cryptocore/gcm_go1.5.go
renamed: cryptfs/nonce.go -> internal/cryptocore/nonce.go
renamed: cryptfs/openssl_aead.go -> internal/cryptocore/openssl_aead.go
renamed: cryptfs/openssl_benchmark.bash -> internal/cryptocore/openssl_benchmark.bash
renamed: cryptfs/openssl_test.go -> internal/cryptocore/openssl_test.go
new file: internal/nametransform/name_api.go
new file: internal/nametransform/names_core.go
renamed: cryptfs/names_diriv.go -> internal/nametransform/names_diriv.go
renamed: cryptfs/names_noiv.go -> internal/nametransform/names_noiv.go
renamed: cryptfs/names_test.go -> internal/nametransform/names_test.go
new file: internal/nametransform/pad16.go
renamed: cryptfs/log.go -> internal/toggledlog/log.go
renamed: cryptfs/log_go1.4.go -> internal/toggledlog/log_go1.4.go
renamed: cryptfs/log_go1.5.go -> internal/toggledlog/log_go1.5.go
modified: main.go
modified: masterkey.go
modified: pathfs_frontend/file.go
modified: pathfs_frontend/file_holes.go
modified: pathfs_frontend/fs.go
modified: pathfs_frontend/fs_dir.go
modified: pathfs_frontend/names.go
modified: test.bash
2016-02-06 19:22:35 +01:00
Jakob Unterwurzacher