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Fixes https://github.com/rfjakob/gocryptfs/pull/503
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Each file will be read and then concatenated
for the effictive password. This can be used as a
kind of multi-factor authenticiton.
Fixes https://github.com/rfjakob/gocryptfs/issues/288
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The function actually answers the question:
"is this an empty dir"?
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CheckTrailingGarbage was called even when "-passfile" was
used, which is stupid, and causes false positives:
https://github.com/rfjakob/gocryptfs/issues/391
(false error "Received trailing garbage after the password"
when using -passfile in .bash_profile)
Instead of trying to improve the logic to handle that case
and make everything even more complicated, delete the function.
It is unclear if actually helps in some cases, and it definitely
harms as shown by the above bug report.
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To support arguments containing spaces, -extpass can now
be passed multiple times.
https://github.com/rfjakob/gocryptfs/issues/289
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When O_PATH is specified in flags, flag bits other than O_CLOEXEC, O_DIRECTORY,
and O_NOFOLLOW are ignored.
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Un-spaghettify the function and let the callers open
the directory.
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Allows better error handling, gets rid of the call to an
external program, and fixes https://github.com/rfjakob/gocryptfs/issues/278 .
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Directly use int file descriptors for the dirfd
and get rid of one level of indirection.
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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.
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configfile.LoadConfFile() -> configfile.Load()
configfile.CreateConfFile() -> configfile.Create()
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readpassword.Trezor() is not implemented yet and returns
a hardcoded dummy key.
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To avoid confusion with fsck, rename to isDir*()
and move the functions into init_dir.go.
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The replaces the "does not return" comments with
an explicit os.Exit, which is unambigous.
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Overwrite the password we have got from the user
with zeros once we don't need it anymore, and make
sure the variable runs out of scope.
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As soon as we don't need them anymore, overwrite
keys with zeros. 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
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Fixes the same problem as described in 72b975867a3b9bdf53fc2da62e2ba4a328d7e4ab,
except for directories instead of device nodes.
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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.
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New codes:
* OpenConf = 23
* WriteConf = 24
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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 .
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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.
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From the comment:
// CheckTrailingGarbage tries to read one byte from stdin and exits with a
// fatal error if the read returns any data.
// This is meant to be called after reading the password, when there is no more
// data expected. This helps to catch problems with third-party tools that
// interface with gocryptfs.
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Through base64.RawURLEncoding.
New command-line parameter "-raw64".
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Before:
You can now mount it using: gocryptfs a x MOUNTPOINT
After:
You can now mount it using: gocryptfs "a x" MOUNTPOINT
This is still not bulletproof but should handle the common
case of having a space in the directory name. After all,
it's only a suggestion.
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$ gocryptfs -init -extpass "echo test" a
Using password provided via -extpass. <<< DUPLICATE
Reading password from extpass program
The gocryptfs filesystem has been created successfully.
You can now mount it using: gocryptfs a MOUNTPOINT
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GCM-SIV is not yet finalized, and the reference implemenation is
painfully slow at about 2 MB/s. Switch to AES-SIV.
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Also add ReverseDummyNonce nonce generation.
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