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2018-09-08configfile: split off masterkey decryptionJakob Unterwurzacher
Preparation for fixing https://github.com/rfjakob/gocryptfs/issues/258
2018-09-08configfile: return specific error on empty inputJakob Unterwurzacher
Report the actual problem instead of a generic "unexpected end of JSON input". https://github.com/rfjakob/gocryptfs/issues/258
2018-07-23configfile: drop superflous PrintfJakob Unterwurzacher
Before: $ gocryptfs -fsck . LoadConfFile: ReadFile: &os.PathError{Op:"open", Path:"/var/tmp/check-gocryptfs/scratchdev/gocryptfs.conf", Err:0xd} Cannot open config file: open /var/tmp/check-gocryptfs/scratchdev/gocryptfs.conf: permission denied After: $ gocryptfs -fsck . Cannot open config file: open /var/tmp/check-gocryptfs/scratchdev/gocryptfs.conf: permission denied
2018-07-01Only print masterkey once on -initJakob Unterwurzacher
It is no longer printed at all when mounting a filesystem, printing on -init can be disabled with -q. https://github.com/rfjakob/gocryptfs/issues/76
2018-07-01trezor: add TrezorPayloadJakob Unterwurzacher
TrezorPayload stores 32 random bytes used for unlocking the master key using a Trezor security module. The randomness makes sure that a unique unlock value is used for each gocryptfs filesystem.
2018-07-01configfile: reduce function name stutterJakob Unterwurzacher
configfile.LoadConfFile() -> configfile.Load() configfile.CreateConfFile() -> configfile.Create()
2018-07-01trezor: add skeleton for Trezor supportJakob Unterwurzacher
readpassword.Trezor() is not implemented yet and returns a hardcoded dummy key.
2018-06-24configfile: use tlog.ColorYellow instead of hardcoded color codeJakob Unterwurzacher
2018-04-02fsck: test against example_filesystemsJakob Unterwurzacher
2018-02-18readpassword: convert from string to []byteJakob Unterwurzacher
This will allows us to overwrite the password with zeros once we are done with it. https://github.com/rfjakob/gocryptfs/issues/211
2018-02-18configfile: overwrite and let keys run out of scopeJakob Unterwurzacher
As soon as we don't need them anymore, overwrite keys with zeros and make sure they run out of scope so we don't create a risk of inadvertedly using all-zero keys for encryption. https://github.com/rfjakob/gocryptfs/issues/211
2017-11-21main: Add '-devrandom' commandline optionSebastian Lackner
Allows to use /dev/random for generating the master key instead of the default Go implementation. When the kernel random generator has been properly initialized both are considered equally secure, however: * Versions of Go prior to 1.9 just fall back to /dev/urandom if the getrandom() syscall would be blocking (Go Bug #19274) * Kernel versions prior to 3.17 do not support getrandom(), and there is no check if the random generator has been properly initialized before reading from /dev/urandom This is especially useful for embedded hardware with low-entroy. Please note that generation of the master key might block indefinitely if the kernel cannot harvest enough entropy.
2017-05-14exitcodes: specific codes for failure to read or write gocryptfs.confJakob Unterwurzacher
New codes: * OpenConf = 23 * WriteConf = 24
2017-05-07exitcodes: pull all exit code definitions into the packageJakob Unterwurzacher
This commit defines all exit codes in one place in the exitcodes package. Also, it adds a test to verify the exit code on incorrect password, which is what SiriKali cares about the most. Fixes https://github.com/rfjakob/gocryptfs/issues/77 .
2017-05-07Fix typos found by MisspellJakob Unterwurzacher
Misspell Finds commonly misspelled English words gocryptfs/internal/configfile/scrypt.go Line 41: warning: "paramter" is a misspelling of "parameter" (misspell) gocryptfs/internal/ctlsock/ctlsock_serve.go Line 1: warning: "implementes" is a misspelling of "implements" (misspell) gocryptfs/tests/test_helpers/helpers.go Line 27: warning: "compatability" is a misspelling of "compatibility" (misspell)
2017-04-23Add -forcedecodedanim7
Force decode of encrypted files even if the integrity check fails, instead of failing with an IO error. Warning messages are still printed to syslog if corrupted files are encountered. It can be useful to recover files from disks with bad sectors or other corrupted media. Closes https://github.com/rfjakob/gocryptfs/pull/102 .
2017-03-25configfile: always validate all scrypt parametersJakob Unterwurzacher
This makes sure we cannot get weak parameters passed through a rougue gocryptfs.conf.
2017-03-07configfile: HKDF feature flag should also be set for "-plaintextnames"Jakob Unterwurzacher
2017-03-07configfile: enable HKDF and Raw64 feature flags by defaultJakob Unterwurzacher
Also adds a test to verify that they are set in new config files.
2017-03-05tests: configfile: fix spurious test failure IIJakob Unterwurzacher
internal/configfile/config_test.go:67: c declared and not used
2017-03-05tests: configfile: fix spurious test failureJakob Unterwurzacher
This test fails because Raw64 has been disabled for now.
2017-03-05configfile: disable Raw64 for nowJakob Unterwurzacher
Raw64 is supported (but was disabled by default) since gocryptfs v1.2. However, the implementation was buggy because it forgot about long names and symlinks. Disable it for now by default and enable it later, together with HKDF.
2017-03-05full stack: implement HKDF supportJakob Unterwurzacher
...but keep it disabled by default for new filesystems. We are still missing an example filesystem and CLI arguments to explicitely enable and disable it.
2017-03-05configfile: reject the "HKDF" flag for nowJakob Unterwurzacher
This will be re-enabled once it is implemented.
2017-03-05configfile: switch on Raw64 by defaultJakob Unterwurzacher
As we have dropped Go 1.4 compatibility already, and will add a new feature flag for gocryptfs v1.3 anyway, this is a good time to enable Raw64 as well.
2017-03-05configfile: switch to 128-bit IVs for master key encryptionJakob Unterwurzacher
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.
2017-03-05configfile: define HKDF flagJakob Unterwurzacher
2017-02-26exitcodes: define code 12 for "password incorrect"Jakob Unterwurzacher
2017-02-25configfile: rename "kdf.go" -> "scrypt.go"Jakob Unterwurzacher
This really only handles scrypt and no other key-derivation functions. Renaming the files prevents confusion once we introduce HKDF. renamed: internal/configfile/kdf.go -> internal/configfile/scrypt.go renamed: internal/configfile/kdf_test.go -> internal/configfile/scrypt_test.go
2017-02-16tests: configfile: add missing newlines in verbose outputJakob Unterwurzacher
2017-01-26main: make sure the ctlsock file is deleted on incorrect passwordJakob Unterwurzacher
Otherwise the next try to mount ends in "ctlsock: listen unix ctl.sock: bind: address already in use"
2016-11-01Add support for unpadded base64 filenames, "-raw64"Jakob Unterwurzacher
Through base64.RawURLEncoding. New command-line parameter "-raw64".
2016-10-21configfile: add newline at the endJakob Unterwurzacher
For convenience for the user, add a newline at the end. Reported as #51 .
2016-10-16main: allow password change with -masterkeyJakob Unterwurzacher
Requested at https://github.com/rfjakob/gocryptfs/issues/28
2016-10-04lint fixesValient Gough
2016-09-29reverse: use per-purpose nonce generationJakob Unterwurzacher
Also pull all the deterministic nonce code into fusefrontend_reverse to greatly simplify the normal code path.
2016-09-26reverse: switch from GCM-SIV to AES-SIVv1.1-beta1Jakob Unterwurzacher
GCM-SIV is not yet finalized, and the reference implemenation is painfully slow at about 2 MB/s. Switch to AES-SIV.
2016-09-25Implement changes proposed by gosimple.Jakob Unterwurzacher
Also delete the unused "dirIVNameStruct", found by deadcode.
2016-09-25contentenc: add "ExternalNonce" modeJakob Unterwurzacher
This will be used for strong symlink encryption in reverse mode.
2016-09-25reverse: add gcmsiv flag and associated testsJakob Unterwurzacher
2016-09-25contentenc: add GCM-SIV supportJakob Unterwurzacher
Also add ReverseDummyNonce nonce generation.
2016-09-25cryptocore: add support for GCM-SIVJakob Unterwurzacher
2016-09-25main: initial support for reverse modeJakob Unterwurzacher
2016-07-06Add godoc comments to all internal packagesJakob Unterwurzacher
2016-06-19Refuse mounting of v0.6 and older filesystemsJakob Unterwurzacher
2016-06-16Mount v0.6 and older filesystems as read-onlyJakob Unterwurzacher
This is part of the phase-out of very old filesystems. See https://github.com/rfjakob/gocryptfs/wiki/Compatibility for more info.
2016-06-16tests: update config_test example filesJakob Unterwurzacher
Recreate the files so they carry all feature flags. Also, create them with "-scryptn 10" to speed up the tests.
2016-06-15Rename internal "toggledlog" package to "tlog"Jakob Unterwurzacher
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' {} +
2016-06-06configfile: warn about missing feature flagsJakob Unterwurzacher
The plan is to drop support for the oldest filesystem versions in gocryptfs v1.0. For now, we only warn the user.
2016-06-05toggledlog: convert remaing naked fmt.Print*Jakob Unterwurzacher
Several fatal errors were just printed to stdout, which meant they were invisible when running the test suite. Fix this by introducing toggledlog.Fatal and convert as follows: Fatal errors -> toggledlog.Fatal Warnings -> toggledlog.Warn Password prompts -> fmt.Fprintf
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