diff options
Diffstat (limited to 'index.md')
| -rw-r--r-- | index.md | 281 |
1 files changed, 281 insertions, 0 deletions
diff --git a/index.md b/index.md new file mode 100644 index 0000000..6c1849a --- /dev/null +++ b/index.md @@ -0,0 +1,281 @@ +[[!meta title="Keyringer: encrypted and distributed secret sharing software"]] + +Keyringer lets you manage and share secrets using GnuPG and Git with custom +commands to encrypt, decrypt, recrypt, create key pairs, etc. + +- Project page: [https://keyringer.pw](https://keyringer.pw) +- Manpage: [keyringer.1](share/man/keyringer.1) +- License: [GPLv3+](LICENSE) +- Issue tracker: [https://keyringer.pw/trac](https://keyringer.pw/trac) +- Tor hidden service: [http://4qt45wbulqipigwa.onion](http://4qt45wbulqipigwa.onion) +- Releases: [https://keyringer.pw/releases](releases) +- Contact: rhatto at riseup.net + +Index +----- + +[[!toc levels=4]] + +Installation +------------ + +Just clone + + git clone https://git.fluxo.info/keyringer + +You can also verify the latest commit's OpenPGP signature: + + /usr/bin/git -C keyringer verify-commit HEAD + +Note that `/usr/bin/git` is called to avoid any other `git` wrappers or aliases +you might have available on your shell. + +You can also add the `keyringer` script into your `$PATH` environment variable +or package it to your preferred distro. + +If you're using Debian `stable` or newer, just run + + apt-get install keyringer + +Creating a keyringer repository +------------------------------- + +The first step is to setup a keyring. + +Keyringer supports management of multiple isolated keyrings. To start +a new keyring (or register an existing one with your config file), run: + + keyringer <keyring> init <path> [remote] + +This will + + 1. Add an entry at `$HOME/.keyringer/config` aliasing 'keyring' to 'path'. + 2. Initialize a git repository if needed. + +For example, + + keyringer friends init $HOME/keyrings/friends + +creates an alias "friends" pointing to `$HOME/keyrings/friends`. All +other keyring actions for this keyring should be called using this alias. + +If there is an existing remote keyring git repository and you just +want to checkout it, use + + keyringer friends init $HOME/keyrings/friends <repository-url> + +Managing secrets +---------------- + +Each `secret` has a corresponding file inside `keys` subdirectory from the +keyring folder. Keyringer has plenty of actions to operate in these secrets: + + keyringer <keyring> commands + +Encrypting a secret + + keyringer <keyring> encrypt <secret> + +Encrypting a secret from a file + + keyringer <keyring> encrypt <secret> <plaintext-file> + +Decrypting a secret (only to stdout) + + keyringer <keyring> decrypt <secret> + +Re-encrypting a secret or the whole repository + + keyringer <keyring> recrypt [secret] + +Appending information to a secret + + keyringer <keyring> append <secret> + +Editing a secret + + keyringer <keyring> edit <secret> + +Use this option with caution as it keeps temporary unencrypted data +into a temporary folder. + +Listing secrets + + keyringer <keyring> ls [arguments] + +Git wrapper +----------- + +Keyringer comes with a simple git wrapper to ease common management tasks: + + keyringer <keyring> git remote add keyringer <url> + keyringer <keyring> git push keyringer master + keyringer <keyring> git pull + +Configuration files, preferences, options and recipients +-------------------------------------------------------- + +Basic keyringer operation depends in a set of configuration files: + + 1. Main config file: `$HOME/.keyringer/config`: store the location of + each keyring. + + 2. User preferences per keyring: `$HOME/.keyringer/<keyring>`: managed by + "keyringer <keyring> preferences". Preferences aren't shared among + users, so each user can have it's own set of preferences. + + 3. Custom keyring options: `$KEYRING_FOLDER/config/options`: managed by + "keyringer <keyring> options". Options are shared among all + keyring users. + + 4. Recipients: `$KEYRING_FOLDER/config/recipients/`: controls the list of + OpenPGP public key fingerprints that should be used when encrypting content. + Multiple recipients are supported, so secrets can be encrypted to + different sets of OpenPGP pubkeys in the same keyring. + +Other configuration parameters used by keyringer and it's actions are stored at +`$KEYRING_FOLDER/config/`. + +Using a non-default OpenPGP key +------------------------------- + +If you want to use a different key other than your default for a given +keyringer, use + + keyringer <keyring> preferences add KEYID=<fingerprint> + +Example: + + keyringer <keyring> preferences add KEYID=0123456789ABCDEF0123456789ABCDE012345678 + +Managing recipients +------------------- + +Keyringer uses the `default` recipient stored at `$KEYRING_FOLDER/config/recipients/default` +as the standard list of OpenPGP public key fingerprints to which secrets should be encrypted. + +Additionally, keyringer supports multiple `recipient` files which can have a different set +of OpenPGP public key fingerprints used for encryption. + +Recipients are matched against secrets according to it's path. If there exists a recipient +called `accounting`, the following secret will be encrypted using it's OpenPGP public key +fingerprints: + + keyringer <keyring> encrypt accounting/balance + +In other words, the `accounting` recipient file is used because the secret name begins +with `accounting`. + +So it's the case that recipients listed in the `default` recipient but not in the +`accounting` recipients won't be able to decrypt this secret. + +When you first initalized your keyring, keyringer might have asked you to populate +the `default` recipient list or you cloned a keyring repository which already has +the `default` recipient. + +If you want more recipient files, your next step is tell keyringer the OpenPGP +key IDs to encrypt files to: + + keyringer <keyring> recipients edit [recipient-name] + keyringer <keyring> recipients ls + +Remember that keyringer support multiple recipients in a per-folder style. Try +it by creating a sample recipient file: + + keyringer <keyring> recipients edit closest-friends + +Fill it with your friends key IDs. Now encrypt a secret just for then: + + keyringer <keyring> encrypt closest-friends/secret + +In other words, if keyringer finds a recipient file matching a given path, +it will use it instead of the global recipients file. + +You can even create recipient files with your friends' key IDs but without +yours: then you shall be able to encrypt secrets for them that even you cannot +access. Try to find an use case for that ;) + +Each recipient list is defined in a file placed at `config/recipients` in your +keyring repository. Take care to add just trustable recipients. + +Design +------ + +Keyringer's basic concepts are as follows: + + - Each secret is encrypted using multiple users's OpenPGP public keys and commit the + output in a git repository we call a "keyring". + + - A "recipient" a list of OpenPGP keys associated with a path in the keyring, so each + keyring can have multiple recipient definitions so secret compartmentalization is + builtin. All encryption should respect recipient definition. + + - Users can keep their keyring copies in sync using any git remote and push/pull + strategy they like, so key sharing gets easy. + + - A secret is not limited to passphrases or text: keyringer supports any file encryption, + so managing private keys, spreadsheets and media files are handled without distinction. + + - Secret is stored with OpenPGP ASCII-armoured output, so one doesn't need any special + program besides GnuPG to actually decrypt information. + + - Keyringer is agnostic about how you store your secrets. You may choose to have + one encrypted file that contains one line for each secret, e.g. a single file called + secrets with lines such as: + + emma : root : secret1 + emma - /dev/hda : : secret2 + + Or you may also have a different encrypted file for each secret, e.g. a file called + `emma.root` that contains the root passphrase for the server named `emma` and + another called `emma.hda` with the passphrase to decrypt `/dev/hda` on `emma`. + + Creating a logical structure to store your secrets is up to you :) + +Workflow +-------- + +Keyringer can be used as a personal or shared password/secret manager: + + - Each keyring is a full git repository used to store encrypted secrets + using ASCII-armoured OpenPGP. + + - Actions like `encrypt` allows you to paste your secrets directly to + GnuPG so no plaintext is written to disk. + + - By commiting, pushing and pulling each keyring repository, you can + easily share secrets with other people and systems and they don't + need to decrypt this information until they need. + +In summary, keyringer data store is basically gpg-encrypted data atop of a git +repository (one can think of a kind of distributed encrypted filesystem). + +Git was chosen to host encrypted info mostly for two reasos: easy to distribute +and its the only VCS known to make easier repository history manipulation. + +Limitations +----------- + + - See the [manpage](share/man/keyringer.1) for details. + + - Check [this page](https://wiki.koumbit.net/PasswordManagementService/SoftwareComparison) + a comparison on different password management tools. + +Requirements +------------ + +Keyringer needs: + + - [Bash](http://tiswww.case.edu/php/chet/bash/bashtop.html) + - [Git](http://git-scm.com) + - [GNU Privacy Guard](http://gnupg.org) + - Grep, awk, tail, cut, sed and other GNU tools + +Optional dependencies if you want to manage ssl keys: + + - [OpenSSL](http://www.openssl.org) + +Development guidelines +---------------------- + +See [development](development). |