Biscuit CLI

This package provides a Command Line Interface allowing to manipulate biscuit tokens.

Installation

You can install biscuit-cli with Cargo:

cargo install biscuit-cli

From source

git clone https://github.com/biscuit-auth/biscuit-cli.git
cd biscuit-cli
cargo install --path .

Use

The executable carries contextual help, you can run biscuit help to list available commands, and biscuit help <command> to get help about a specific command.

All the commands support reading keys, datalog and tokens from various sources, such as files, options, or stdin.

All the commands can be used in a script, and the commands where you can provide datalog (generate, inspect and attenuate) can also be used in an interactive way, where a text editor ($EDITOR) is started to let you input a datalog program from within a comfortable environment.

By default keys and biscuits are read and written as hex-encoded and base64-encoded strings, but the CLI supports working with raw bytes directly with dedicated flags.

Just make sure you don't leak sensitive information like private keys in your shell history

Here are a list of common use-cases:

Generate a key pair

$ # this will output the keypair, you can then copy/paste the components
$ biscuit keypair
> Generating a new random keypair
> Private key: d1e3ebc3f522cc2f7bb40c2377830d834c41ebeb0aa54d881a75059704dfa6cb
> Public key: 80c596ea5a6ade1a2f8e7bf96359732d9274789d8e85c0a0a62adbff16f4b289

$ # this will save the private key to a file so you can use it later
$ biscuit keypair --only-private-key > private-key-file

Generate a public key from a private key

$ biscuit keypair --from-private-key-file private-key-file --only-public-key
> 2341bc530d8f074100734a41cc05cc82e4e2564eff61b0408f8e37a08f384767

Create a biscuit token

$ # this will open your text editor and let you type in the authority block as datalog
$ biscuit generate --private-key-file private-key-file
> En0KEwoFZmlsZTEYAiIICgYIBBICGAcSJAgAEiB-So8adTv5YLBK49I8MrK1JdrYLrFSiFqUkRkVsco9MhpAJzlkr2xHM4JSlFmph7c9UEJPqw_BCscMgkIasAjnXZT5BHpA58M1uo_4KUDbPZSJVtbF93P43X41W7aofjZXAiIiCiCScR0e_rBUa7VjxnKW4PT52ZjC3peMCrWOi1T0jgR0fw==

$ # this will generate the token directly
$ echo 'right("file1");' | biscuit generate --private-key-file private-key-file -
$ En0KEwoFZmlsZTEYAiIICgYIBBICGAcSJAgAEiDg91H1_yfDSMrLnfXLowUZsKJDfrC-1XVSPkbikXYy7BpAacFHci_m8X3PffAgeEXVgF3RvwzhE434KWLNpbDYLE1_IOIwsSjRVqFC4fy-NuY9CEqetJ8fHUfo0I7Qs05TDSIiCiDHkAX0s3RgH_wMYDKlE09S2YZM-1cLmFgl5Nh3gvU0bg==

Inspect a biscuit token

By default, biscuit inspect only prints out the biscuit contents (datalog blocks, and revocation ids).

$ # this will inspect the token stored in the given file
$ biscuit inspect biscuit-file
> Authority block:
> == Datalog ==
> right("file1");
> 
> == Revocation id ==
> 526c78ffa3819cb71bcade69d6d78f80ad1209f21d2c3326857c66ca8fc19c63a4283929b690ae40ca8474594631caee464b0367b781d3cc1139343c13900509
> 
> ==========
> 
> 🙈 Public key check skipped 🔑
> 🙈 Datalog check skipped 🛡️

A public key can be provided to check the biscuit root key (the command exits with a success code only if the keys match)

$ # this will make sure the biscuit root key is the same as the one that's provided
$ biscuit inspect --public-key-file public-key-file biscuit-file
> Authority block:
> == Datalog ==
> right("file1");
> 
> == Revocation id ==
> 526c78ffa3819cb71bcade69d6d78f80ad1209f21d2c3326857c66ca8fc19c63a4283929b690ae40ca8474594631caee464b0367b781d3cc1139343c13900509
> 
> ==========
> 
> ✅ Public key check succeeded 🔑
> 🙈 Datalog check skipped 🛡️

An authorizer can be provided to check if the biscuit would be allowed in a given context (the command exits with a success code only if the keys match and if the authorization suceeded).

If you want to use your text editor to type in the authorizer, you can use --authorize-interactive instead.

$ biscuit inspect --public-key-file public-key-file \
                  --authorize-with 'allow if right("file1");' \
                  biscuit-file
> Authority block:
> == Datalog ==
> right("file1");
> 
> == Revocation id ==
> 526c78ffa3819cb71bcade69d6d78f80ad1209f21d2c3326857c66ca8fc19c63a4283929b690ae40ca8474594631caee464b0367b781d3cc1139343c13900509
> 
> ==========
> 
> ✅ Public key check succeeded 🔑
> ✅ Authorizer check succeeded 🛡️
> Matched allow policy: allow if right("file1")

Attenuating a biscuit token

# this will create a new biscuit token with the provided block appended
$ biscuit attenuate biscuit-file --block 'check if client_ip_address("127.0.0.1);'
> En0KEwoFZmlsZTEYAiIICgYIBBICGAcSJAgAEiBrhbrvPUXH9RPOzIwnLVyRWwcK64JQ97kBvz1hLJfjfBpAUmx4_6OBnLcbyt5p1tePgK0SCfIdLDMmhXxmyo_BnGOkKDkptpCuQMqEdFlGMcruRksDZ7eB08wROTQ8E5AFCRqhAQo3CgVxdWVyeQoRY2xpZW50X2lwX2FkZHJlc3MKCTEyNy4wLjAuMRgCMg4KDAoCCAgSBggJEgIYChIkCAASIL6EGw7TZQ-8sRa0RT1U0cW8mjN_GzoW0jwX_67I0zPCGkDL5ho8NPsZwskzJ86e31qR29grjcEQormtv7I3YoQy_I2aoZGNtlviX72FuBT85KlVxJtjOiLxCIOvJj4MVN0KIiIKIM6btYoZ-ONE2gKEJ2raR8Bck7SMBAUf2sK7Z8I7uM_D

Contribute

git clone https://github.com/biscuit-auth/biscuit-cli.git
cd biscuit-cli
cargo run
cargo test
# CI ensures consistent formatting
cargo fmt --check
# CI ensures that there are no outstanding clippy hints
cargo clippy