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11 changed files with 49 additions and 47 deletions

12
Cargo.lock generated
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@ -1763,9 +1763,6 @@ dependencies = [
[[package]] [[package]]
name = "keyfork-entropy" name = "keyfork-entropy"
version = "0.1.0" version = "0.1.0"
dependencies = [
"smex",
]
[[package]] [[package]]
name = "keyfork-frame" name = "keyfork-frame"
@ -1789,6 +1786,15 @@ dependencies = [
"sha2", "sha2",
] ]
[[package]]
name = "keyfork-plumbing"
version = "0.1.0"
dependencies = [
"keyfork-entropy",
"keyfork-mnemonic-util",
"smex",
]
[[package]] [[package]]
name = "keyfork-prompt" name = "keyfork-prompt"
version = "0.1.0" version = "0.1.0"

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@ -19,6 +19,7 @@ members = [
"crates/util/keyfork-frame", "crates/util/keyfork-frame",
"crates/util/keyfork-mnemonic-util", "crates/util/keyfork-mnemonic-util",
"crates/util/keyfork-prompt", "crates/util/keyfork-prompt",
"crates/util/keyfork-plumbing",
"crates/util/keyfork-slip10-test-data", "crates/util/keyfork-slip10-test-data",
"crates/util/smex", "crates/util/smex",
] ]

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@ -1,25 +1,16 @@
# keyfork # # keyfork #
An opinionated and modular toolchain for generating and managing a wide range An opinionated and modular toolchain for generating and managing a wide range
of cryptographic keys offline and on smartcards from a shared [BIP-0039] of cryptographic keys offline and on smartcards from a shared bip39 mnemonic
mnemonic phrase. BIP-0039 phrases are used to calculate a [BIP-0032] seed, phrase.
which is used for hierarchical deterministic key derivation.
**Note:** The difference between the data encoded in a BIP-0039 mnemonic, and
the BIP-0032 seed, is that a BIP-0039 mnemonic of any length can be used to
generate a BIP-0032 seed of a static length (512 bits). Keyfork makes use of a
BIP-0039 mnemonic and does not accept just a BIP-0032 seed - it will be treated
as the entropy provided for a mnemonic, or rejected outright for being of an
invalid size.
Keyfork can be used by organizations and solo users, for the purposes of Keyfork can be used by organizations and solo users, for the purposes of
disaster recovery, cold storage, and reproducibility of private keys and secret disaster recovery, cold storage, and reproducibility of private keys and secret
data. Keyfork achieves this by loading a BIP-0032 seed into an agent to data. Keyfork achieves this by using a bip32 seed loaded into an agent to
generate deterministic and unique keypairs. This ensures only the agent has generate deterministic and unique keypairs. This ensures only the agent has
control over the root seed itself, and other components can request control over the mnemonic itself, and other components can request
deterministic data. The BIP-0039 data can also be split using the Keyfork Shard deterministic data. The seed can be split using the Keyfork Shard mechanism,
mechanism, which utilizes Shamir's Secret Sharing to allow "M-of-N" recovery of which utilizes Shamir's Secret Sharing to allow "M-of-N" recovery of the seed.
the data.
All crate licenses are notated using the "license" field in their respective All crate licenses are notated using the "license" field in their respective
Cargo.toml. As a general rule, As a general rule, crates with binaries are Cargo.toml. As a general rule, As a general rule, crates with binaries are
@ -66,8 +57,8 @@ Note: The following features are proposed, and may not yet be implemented.
* Config file and 24 word mnemonic phrase to recover *every* key * Config file and 24 word mnemonic phrase to recover *every* key
* Shard mechanism allows for "M-of-N" recovery of seed if lost * Shard mechanism allows for "M-of-N" recovery of seed if lost
* Unpredictable * Unpredictable
* Generate a BIP-0039 phrase from OS or physicalized entropy * Generate a BIP39 phrase from OS or physicalized entropy
* Provide and use BIP-0039 passphrase from user supplied entropy * Provide and use BIP39 passphrase from user supplied entropy
* Read up on [milksad](https://milksad.info) to understand why this matters! * Read up on [milksad](https://milksad.info) to understand why this matters!
* Deterministic * Deterministic
* Given the same seed, repeated derivation requests will be reproducible * Given the same seed, repeated derivation requests will be reproducible
@ -226,8 +217,6 @@ which can be opened in-browser by running
`mdbook serve --open docs`. `mdbook serve --open docs`.
[`docs`]: /public/keyfork/src/branch/main/docs/src/SUMMARY.md [`docs`]: /public/keyfork/src/branch/main/docs/src/SUMMARY.md
[BIP-0039]: https://github.com/bitcoin/bips/blob/master/bip-0039.mediawiki
[BIP-0032]: https://github.com/bitcoin/bips/blob/master/bip-0032.mediawiki
<!-- <!--
``` ```
@ -241,7 +230,7 @@ keyfork version
keyfork help keyfork help
Show this text. Show this text.
keyfork [command] keyfork [command]
Commands receive BIP-0032 root as stdin Commands receive bip32 root as stdin
Commands return output and config data as json over stdout back to keyfork Commands return output and config data as json over stdout back to keyfork
keyfork [command] help keyfork [command] help
Show help for a particular sub-command Show help for a particular sub-command

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@ -27,8 +27,8 @@ pub enum RecoverSubcommands {
} }
impl RecoverSubcommands { impl RecoverSubcommands {
/// Return the 128-bit or 256-bit entropy for a BIP-0039 mnemonic. This is _not_ the same as /// Return the 128-bit or 256-bit entropy for a bip39 mnemonic. This is _not_ the same as the
/// the 512-bit seed used by BIP-0032. /// 512-bit seed used by bip32.
fn handle(&self) -> Result<Vec<u8>> { fn handle(&self) -> Result<Vec<u8>> {
match self { match self {
RecoverSubcommands::Shard { RecoverSubcommands::Shard {

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@ -6,9 +6,4 @@ license = "MIT"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[features]
default = []
bin = ["smex"]
[dependencies] [dependencies]
smex = { version = "0.1.0", path = "../smex", optional = true }

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@ -0,0 +1,12 @@
[package]
name = "keyfork-plumbing"
version = "0.1.0"
edition = "2021"
license = "AGPL-3.0-only"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
keyfork-entropy = { version = "0.1.0", path = "../keyfork-entropy" }
keyfork-mnemonic-util = { version = "0.1.0", path = "../keyfork-mnemonic-util" }
smex = { version = "0.1.0", path = "../smex" }

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@ -142,7 +142,7 @@ pub mod mnemonic {
} }
} }
/// A mnemonic of a given choice of lengths. For example, a 128-bit or 256-bit BIP-0032 seed. /// A mnemonic of a given choice of lengths. For example, a 128-bit or 256-bit bip32 seed.
#[derive(thiserror::Error, Debug)] #[derive(thiserror::Error, Debug)]
pub enum MnemonicChoiceValidationError { pub enum MnemonicChoiceValidationError {
/// The provided mnemonic did not match any of the valid ranges. /// The provided mnemonic did not match any of the valid ranges.

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@ -10,16 +10,15 @@ cargo install --index https://git.distrust.co/public/_cargo-index keyfork@0.1.0
The index is managed by Distrust, but is not signed by developers when commits The index is managed by Distrust, but is not signed by developers when commits
are created, so a safer alternative may be to build from source. It is are created, so a safer alternative may be to build from source. It is
recommended to perform these operations in an environment dedicated for the recommended to perform these operations on a machine dedicated for the purpose
purpose of building Rust binaries, to avoid the risk of building a compromised of building Rust binaries, to avoid the risk of building a compromised binary.
binary.
```sh ```sh
git clone https://git.distrust.co/public/keyfork git clone https://git.distrust.co/public/keyfork
cd keyfork cd keyfork
# git checkout keyfork-0.1.0 # git checkout keyfork-0.1.0
git verify-commit HEAD git verify-commit HEAD
cargo install --locked --path crates/keyfork cargo install --locked --path keyfork
``` ```
This will build Keyfork from source, using a local `Cargo.lock` file to ensure This will build Keyfork from source, using a local `Cargo.lock` file to ensure
@ -31,12 +30,15 @@ Keyfork offers "plumbing" binaries (as opposed to the "porcelain" `keyfork`)
that offer a smaller [SBOM], allowing users with a smaller feature requirement that offer a smaller [SBOM], allowing users with a smaller feature requirement
to lessen the requirements for code review. Plumbing binaries can be installed to lessen the requirements for code review. Plumbing binaries can be installed
the same way Keyfork is installed, either through the registry or by building the same way Keyfork is installed, either through the registry or by building
locally. Plumbing binaries may be grouped by crates of shared dependencies if locally. Plumbing binaries are grouped by crates of shared dependencies. For
all dependencies are shared between the binaries. Plumbing binaries may also instance, `keyfork-plumbing` includes all binaries using only shared
exist in crates that exist only to serve as a command-line interface to that dependencies. Eventually, `keyfork-plumbing-openpgp` may contain all
crate, but may require additional dependencies to build a binary. These will be dependencies relevant to OpenPGP (such as the `keyfork-shard` variants,
specified by `--features bin` as a flag that should be passed to `cargo `keyfork-derive-openpgp`, and `keyfork-provision-openpgp-card`). There may also
install`. be plumbing binaries that exist by themselves, without a plumbing package.
Unfortunately, Cargo offers no convenient way to install a binary from any
package on a workspace, so the information about which package contains which
binary must be known beforehand.
<!-- TODO: <!-- TODO:
Should plumbing binaries be their own packages? Should plumbing binaries be their own packages?
@ -44,11 +46,8 @@ install`.
--> -->
```sh ```sh
# Currently (2024-01-17) unreleased, may not exist yet cargo install --index https://git.distrust.co/public/_cargo-index keyfork-plumbing@0.1.0
cargo install --index https://git.distrust.co/public/_cargo-index keyfork-entropy@0.1.0 --features bin cargo install --locked --path keyfork-plumbing --bin keyfork-entropy
# Confirmed to work as of 2024-01-17.
cargo install --locked --path crates/util/keyfork-entropy --bin keyfork-entropy --features bin
``` ```
[SBOM]: https://en.wikipedia.org/wiki/SBOM [SBOM]: https://en.wikipedia.org/wiki/SBOM

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@ -9,7 +9,7 @@ particular mechanism) to an external source, such as a smart card. Provisioners
should hardcode at least one path index (such as `7366512`, for "PGP") specific should hardcode at least one path index (such as `7366512`, for "PGP") specific
to the usage of the key to be provisioned (and such index should be recorded in to the usage of the key to be provisioned (and such index should be recorded in
the keyfork-path-data crate), and accept at least one index to use as what the keyfork-path-data crate), and accept at least one index to use as what
BIP-0032 calls an "account". While some users may never practically make use of bip32 calls an "account". While some users may never practically make use of
multiple accounts, having the option to specify multiple accounts is important. multiple accounts, having the option to specify multiple accounts is important.
## Plumbing ## Plumbing