Global, de-centralized signing of code and other digital assets
This software is released under GPL3.
It's easiest to download the lates release from GitHub:
https://github.com/vchain-us/vcn/releases
After having installed golang clone this
repository into your GOPATH, usually this is $HOME/go/src/ on Unix-like
operating systems.
Set the GOPATH
$> export GOPATH=$HOME/go
$> export GOBIN=$GOPATH/bin
$> PATH=$PATH:$GOPATH:$GOBIN
$> export PATH
or simply put it to $HOME/.bash_profile once.
This will put the executable into GOBIN which is
accessible throughout the system.
$> cd vcn/vcn
$> go install
$> vcn
Alternatively you can build vcn in the working directory.
$> go get ./...
$> go build
$> ./vcn
Register an account with vChain.us first.
Then start with the login verb; the cli will walk you through login
and setting up your local keystore upon initial use.
$> vcn --help
$> vcn login
You're good to use verify without the above registration.
$> vcn verify <file>
$> vcn verify docker:<imageId>
Once your public key is known on the blockchain you can sign assets:
$> vcn sign <file>
$> vcn sign docker:<image>
Change the asset's status
$> vcn unsupport <file>
$> vcn untrust <file>
Have a look at analytics and extended functionality on the dashboard (browser needed):
$> vcn dashboard
Fetch all assets you've signed:
$> vcn list
You're good to start doing really cool things, e.g.
# run a Docker image only when it can be successfully verified
$> vcn verify docker:hello-world && docker run hello-world
# verify multiple files by piping other commands' outputs into vcn
$> ls | xargs vcn verify
# work with environment
# get logs (TRACE, DEBUG, INFO, WARN, ERROR, FATAL, PANIC)
$> LOG_LEVEL=TRACE vcn login
# or with a proxy
$> HTTP_PROXY=http://localhost:3128 vcn verify <file>
Simply run
$> go test
$ solc --abi Proof.sol -o build
$ abigen --abi=./Proof.abi --pkg proof --out=Proof.go
Attention: depends on where your *.sol and *.abi are located. The resulting
autogenerated go sources must go into vcn/vcn/.
The C libraries of go-etehreum make a more sophisticated cross-compilation
necessary. Make sure you have xgo installed:
go get -u github.com/karalabe/xgo
./build-multiplatform.sh in dist takes care of the rest.