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# crypt
You can use crypt as a command line tool or as a configuration library:
* [crypt cli](bin/crypt)
* [crypt/config](config)
## Demo
Watch Kelsey explain `crypt` in this quick 5 minute video:
[](https://www.youtube.com/watch?v=zYpqqfuGwW8)
## Generating gpg keys and keyrings
The crypt cli and config package require gpg keyrings.
### Create a key and keyring from a batch file
```
vim app.batch
```
```
%echo Generating a configuration OpenPGP key
Key-Type: default
Subkey-Type: default
Name-Real: app
Name-Comment: app configuration key
Name-Email: app@example.com
Expire-Date: 0
%pubring .pubring.gpg
%secring .secring.gpg
%commit
%echo done
```
Run the following command:
```
gpg2 --batch --armor --gen-key app.batch
```
You should now have two keyrings, `.pubring.gpg` which contains the public keys, and `.secring.gpg` which contains the private keys.
> Note the private key is not protected by a passphrase.
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