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https://github.com/bchainhub/vault

Core Vault
https://github.com/bchainhub/vault

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Core Vault

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# Vault [![CircleCI](https://circleci.com/gh/hashicorp/vault.svg?style=svg)](https://circleci.com/gh/hashicorp/vault) [![vault enterprise](https://img.shields.io/badge/vault-enterprise-yellow.svg?colorB=7c8797&colorA=000000)](https://www.hashicorp.com/products/vault/?utm_source=github&utm_medium=banner&utm_campaign=github-vault-enterprise)



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**Please note**: We take Vault's security and our users' trust very seriously. If you believe you have found a security issue in Vault, _please responsibly disclose_ by contacting us at [[email protected]](mailto:[email protected]).



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-	Website: https://www.vaultproject.io

-	Announcement list: [Google Groups](https://groups.google.com/group/hashicorp-announce)

-	Discussion forum: [Discuss](https://discuss.hashicorp.com/c/vault)

- Documentation: [https://www.vaultproject.io/docs/](https://www.vaultproject.io/docs/)

- Tutorials: [HashiCorp's Learn Platform](https://learn.hashicorp.com/vault)

- Certification Exam: [Vault Associate](https://www.hashicorp.com/certification/#hashicorp-certified-vault-associate)



Vault Logo



Vault is a tool for securely accessing secrets. A secret is anything that you want to tightly control access to, such as API keys, passwords, certificates, and more. Vault provides a unified interface to any secret, while providing tight access control and recording a detailed audit log.



A modern system requires access to a multitude of secrets: database credentials, API keys for external services, credentials for service-oriented architecture communication, etc. Understanding who is accessing what secrets is already very difficult and platform-specific. Adding on key rolling, secure storage, and detailed audit logs is almost impossible without a custom solution. This is where Vault steps in.



The key features of Vault are:



* **Secure Secret Storage**: Arbitrary key/value secrets can be stored

  in Vault. Vault encrypts these secrets prior to writing them to persistent

  storage, so gaining access to the raw storage isn't enough to access

  your secrets. Vault can write to disk, [Consul](https://www.consul.io),

  and more.



* **Dynamic Secrets**: Vault can generate secrets on-demand for some

  systems, such as AWS or SQL databases. For example, when an application

  needs to access an S3 bucket, it asks Vault for credentials, and Vault

  will generate an AWS keypair with valid permissions on demand. After

  creating these dynamic secrets, Vault will also automatically revoke them

  after the lease is up.



* **Data Encryption**: Vault can encrypt and decrypt data without storing

  it. This allows security teams to define encryption parameters and

  developers to store encrypted data in a location such as a SQL database without

  having to design their own encryption methods.



* **Leasing and Renewal**: All secrets in Vault have a _lease_ associated

  with them. At the end of the lease, Vault will automatically revoke that

  secret. Clients are able to renew leases via built-in renew APIs.



* **Revocation**: Vault has built-in support for secret revocation. Vault

  can revoke not only single secrets, but a tree of secrets, for example,

  all secrets read by a specific user, or all secrets of a particular type.

  Revocation assists in key rolling as well as locking down systems in the

  case of an intrusion.



Documentation, Getting Started, and Certification Exams

-------------------------------



Documentation is available on the [Vault website](https://www.vaultproject.io/docs/).



If you're new to Vault and want to get started with security automation, please

check out our [Getting Started guides](https://learn.hashicorp.com/collections/vault/getting-started)

on HashiCorp's learning platform. There are also [additional guides](https://learn.hashicorp.com/vault)

to continue your learning.



For examples of how to interact with Vault from inside your application in different programming languages, see the [vault-examples](https://github.com/hashicorp/vault-examples) repo. An out-of-the-box [sample application](https://github.com/hashicorp/hello-vault-go) is also available.



Show off your Vault knowledge by passing a certification exam. Visit the

[certification page](https://www.hashicorp.com/certification/#hashicorp-certified-vault-associate)

for information about exams and find [study materials](https://learn.hashicorp.com/collections/vault/certification)

on HashiCorp's learning platform.



Developing Vault

--------------------



If you wish to work on Vault itself or any of its built-in systems, you'll

first need [Go](https://www.golang.org) installed on your machine.



For local dev first make sure Go is properly installed, including setting up a

[GOPATH](https://golang.org/doc/code.html#GOPATH). Ensure that `$GOPATH/bin` is in

your path as some distributions bundle the old version of build tools. Next, clone this

repository. Vault uses [Go Modules](https://github.com/golang/go/wiki/Modules),

so it is recommended that you clone the repository ***outside*** of the GOPATH.

You can then download any required build tools by bootstrapping your environment:



```sh

$ make bootstrap

...

```



To compile a development version of Vault, run `make` or `make dev`. This will

put the Vault binary in the `bin` and `$GOPATH/bin` folders:



```sh

$ make dev

...

$ bin/vault

...

```



To compile a development version of Vault with the UI, run `make static-dist dev-ui`. This will

put the Vault binary in the `bin` and `$GOPATH/bin` folders:



```sh

$ make static-dist dev-ui

...

$ bin/vault

...

```



To run tests, type `make test`. Note: this requires Docker to be installed. If

this exits with exit status 0, then everything is working!



```sh

$ make test

...

```



If you're developing a specific package, you can run tests for just that

package by specifying the `TEST` variable. For example below, only

`vault` package tests will be run.



```sh

$ make test TEST=./vault

...

```



### Importing Vault



This repository publishes two libraries that may be imported by other projects:

`github.com/hashicorp/vault/api` and `github.com/hashicorp/vault/sdk`.



Note that this repository also contains Vault (the product), and as with most Go

projects, Vault uses Go modules to manage its dependencies. The mechanism to do

that is the [go.mod](./go.mod) file. As it happens, the presence of that file

also makes it theoretically possible to import Vault as a dependency into other

projects. Some other projects have made a practice of doing so in order to take

advantage of testing tooling that was developed for testing Vault itself. This

is not, and has never been, a supported way to use the Vault project. We aren't 

likely to fix bugs relating to failure to import `github.com/hashicorp/vault` 

into your project.



### Acceptance Tests



Vault has comprehensive [acceptance tests](https://en.wikipedia.org/wiki/Acceptance_testing)

covering most of the features of the secret and auth methods.



If you're working on a feature of a secret or auth method and want to

verify it is functioning (and also hasn't broken anything else), we recommend

running the acceptance tests.



**Warning:** The acceptance tests create/destroy/modify *real resources*, which

may incur real costs in some cases. In the presence of a bug, it is technically

possible that broken backends could leave dangling data behind. Therefore,

please run the acceptance tests at your own risk. At the very least,

we recommend running them in their own private account for whatever backend

you're testing.



To run the acceptance tests, invoke `make testacc`:



```sh

$ make testacc TEST=./builtin/logical/consul

...

```



The `TEST` variable is required, and you should specify the folder where the

backend is. The `TESTARGS` variable is recommended to filter down to a specific

resource to test, since testing all of them at once can sometimes take a very

long time.



Acceptance tests typically require other environment variables to be set for

things such as access keys. The test itself should error early and tell

you what to set, so it is not documented here.



For more information on Vault Enterprise features, visit the [Vault Enterprise site](https://www.hashicorp.com/products/vault/?utm_source=github&utm_medium=referral&utm_campaign=github-vault-enterprise).