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crypto/ssh/terminal gets us information about the terminal, such as
its dimensions and state. It also allows us to manipulate the terminal.
For example, we can put the terminal in raw mode when a passphrase needs
to be entered.
This commit also add the github.com/urfave/cli package which we will use
to write the command line tool component of fscrypt. This tool allows
for us to easily use commands and subcommands.
Note that this is actually the upstream repository with two PRs applied:
https://github.com/urfave/cli/pull/629
https://github.com/urfave/cli/pull/630
They fix bugs in the handling of custom usage errors.
Change-Id: I2d3ba967b1bce8f73440e3a06df4eaba7ab96c19
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This commit adds in the golang.org/x/crypto/hkdf package which contains
the HMAC-based Extract-and-Expand Key Derivation Function (HKDF) as
defined in RFC 5869.
This package will be used later in the crypto package to stretch a
single cryptographic key into multiple keys.
Change-Id: I387230344bdeadc7d38c46994a228eecda2e12bd
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This commit adds in the golang.org/x/sys/unix package. This package
provides a low-level interface to unix syscalls. We will uses this
package instead of the built-in "syscall" package because the syscall
package is locked down (https://golang.org/pkg/syscall) and is not
exposing any new kernel functionality.
In fact, this is actually a patched version of the x/sys/unix package
pending review (first part: https://go-review.googlesource.com/c/37943).
The version included in this commit exposes all of the filesystem
encryption kernel interfaces to Go code.
Change-Id: Ic5f9c98b858ccb00db97502c9a60e9249aa8ba38
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This commit adds in the two protocol buffer libraries for Go. The
github.com/golang/protobuf/proto package will let Go code read and write
protocol buffers. The github.com/golang/protobuf/jsonpb package lets Go
code output a JSON representation of protocol buffers.
These packages are stored in the vendor directory, meaning that they
will be imported instead of any installed system packages.
Change-Id: I8da8d15864f03a9b3f767a6af18795c8eca64844
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