mirror of
https://github.com/angt/secret
synced 2024-09-28 03:20:23 +02:00
147 lines
4.5 KiB
Markdown
147 lines
4.5 KiB
Markdown
# secret
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A simple and tiny tool that will help you keep your little secrets.
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## Features
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`secret` is the simplest secret store you can think of.
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But it does have some interesting features:
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- Requires only one file `~/.secret` that you can share publicly without fear.
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- No configuration. No directory. Get back your file and you're done.
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- Secret names (usually hostname, mail, login, etc.) are also encrypted.
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- A secret agent that only trusts subprocesses. Not all the processes of the same user!
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- Secret names completion is available after calling the secret agent.
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- Supports unstored secrets. Derived from some simple keys and a passphrase.
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- Supports multiple passphrases. A confirmation is requested for each new passphrase.
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- Depends only on the [libhydrogen](https://libhydrogen.org/) library.
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- Small, simple and non obfuscated C code. Well, I hope so :)
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## Security
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The main goal is to have `secret` working on all architectures and to make it very simple to audit.
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Luckily, permutation-based cryptography has arrived and makes it possible to achieve this goal with very little code.
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In 2020, using a bloated library full of CVEs will not have been reasonable considering the major advances in this field.
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Only one cryptographic building block is used, the [Gimli](https://gimli.cr.yp.to/gimli-20170627.pdf) permutation.
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All cryptographic operations are derived from this permutation and implemented in the [libhydrogen](https://libhydrogen.org/) library.
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## Build and install
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This should work on a wide variety of architectures and POSIX systems.
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It was successfully tested on Linux, OpenBSD, FreeBSD and MacOS.
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Clone the repository recursively:
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$ git clone https://github.com/angt/secret --recursive
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$ cd secret
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Then, run as `root`:
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# make install
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As usual, you can customize the destination with `DESTDIR` and `prefix`.
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### Tab completion
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Tab completion works with `bash` and `yash` (`zsh` is also supported if you enable `bashcompinit`).
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Unfortunately, it doesn't work out of the box, you have to setup it manually.
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Luckily, it's super easy!
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Download the file corresponding to your shell:
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- [argz.bash](https://github.com/angt/argz/blob/dev/comp/argz.bash).
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- [argz.yash](https://github.com/angt/argz/blob/dev/comp/argz.yash).
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Then you can add these lines in your `.bashrc` (or `.zshrc`):
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. argz.bash
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complete -F _argz secret
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Or in your `.yashrc`:
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. argz.yash
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function completion/secret {
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command -f completion//reexecute argz
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}
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Completion for secrets is only available in a trusted shell. See below.
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## Commands
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Available commands:
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init Initialize secret for the current user
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list List all secrets for a given passphrase
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show Print a secret
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new Generate a new random secret
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set Set a new secret
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renew Regenerate an existing secret
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update Update an existing secret
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pass Print a deterministic secret
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agent Run a process in a trusted zone
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version Show version
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All secrets are encrypted in the file `~/.secret`.
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You can use a different file with the `SECRET_STORE` environment variable:
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$ env SECRET_STORE=<FILE> secret ...
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## Examples
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Initialize secret for the current user:
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$ secret init
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Add a new randomly generated secret:
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$ secret new test
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Passphrase:
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^>f.8%]_zoN^jSi0CO_{(yYY5
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Show the secret:
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$ secret show test
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Passphrase:
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^>f.8%]_zoN^jSi0CO_{(yYY5
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Derive a deterministic (a.k.a. unstored) secret:
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$ secret pass me@domain.com
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Passphrase:
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a`4$B2mJ=|"HD?b4:/y"?wOaQ
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Subkeys are also supported, this allows to update your secret in a clean way:
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$ secret pass me@domain.com 2020
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Passphrase:
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F"1j;-X]t.Pi>.xf5hG,]dUMz
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Storing binary secrets is supported:
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$ dd if=/dev/urandom bs=1 count=32 2>/dev/null | secret set mykey
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Passphrase:
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Then, use a pipe to get it:
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$ secret show mykey | xxd
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Passphrase:
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00000000: 0ee9 cdb3 de0a 3e71 b623 726d 5d7e eb23 ......>q.#rm]~.#
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00000010: 5b43 a458 3fb7 3b96 ea9b 6e47 d302 cae7 [C.X?.;...nG....
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Start a trusted zone:
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$ secret agent
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Passphrase:
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Now, the passphrase is not requested and completion fully works!
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If you don't use `bash` but still want completion,
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run `secret agent bash` or (much better) send a PR to add support for your shiny shell :)
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Finally, if you want to generate TOTP tokens go check out [totp](https://github.com/angt/totp).
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---
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For feature requests and bug reports,
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please create an [issue](https://github.com/angt/secret/issues).
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