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keyfork-mnemonic-util::generate_seed: return const size array

This commit is contained in:
Ryan Heywood 2024-08-01 09:19:07 -04:00
parent 536e6da5ad
commit 02e5b545a4
Signed by: ryan
GPG Key ID: 8E401478A3FBEF72
3 changed files with 6 additions and 8 deletions
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2
crates/daemon/keyforkd/src/lib.rs
View File

@ -57,7 +57,7 @@ pub async fn start_and_run_server_on(
let service = ServiceBuilder::new() let service = ServiceBuilder::new()
.layer(middleware::BincodeLayer::new()) .layer(middleware::BincodeLayer::new())
// TODO: passphrase support and/or store passphrase with mnemonic // TODO: passphrase support and/or store passphrase with mnemonic
.service(Keyforkd::new(mnemonic.generate_seed(None))); .service(Keyforkd::new(mnemonic.generate_seed(None).to_vec()));
let mut server = match UnixServer::bind(socket_path) { let mut server = match UnixServer::bind(socket_path) {
Ok(s) => s, Ok(s) => s,

5
crates/keyfork/src/cli/wizard.rs
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@ -14,7 +14,7 @@ use keyfork_derive_openpgp::{
openpgp::{self, packet::UserID, types::KeyFlags, Cert, serialize::Marshal, armor::{Writer, Kind}}, openpgp::{self, packet::UserID, types::KeyFlags, Cert, serialize::Marshal, armor::{Writer, Kind}},
XPrv, XPrv,
}; };
use keyfork_derive_util::{DerivationIndex, DerivationPath, VariableLengthSeed}; use keyfork_derive_util::{DerivationIndex, DerivationPath};
use keyfork_prompt::{ use keyfork_prompt::{
default_terminal, default_terminal,
validators::{SecurePinValidator, Validator}, validators::{SecurePinValidator, Validator},
@ -196,7 +196,6 @@ fn generate_shard_secret(
fn bottoms_up(key_discovery: &Path, threshold: u8, output_shardfile: &Path, output_cert: &Path, user_id: &str,) -> Result<()> { fn bottoms_up(key_discovery: &Path, threshold: u8, output_shardfile: &Path, output_cert: &Path, user_id: &str,) -> Result<()> {
let entropy = keyfork_entropy::generate_entropy_of_const_size::<{ 256 / 8 }>()?; let entropy = keyfork_entropy::generate_entropy_of_const_size::<{ 256 / 8 }>()?;
let mnemonic = Mnemonic::from_nonstandard_bytes(entropy); let mnemonic = Mnemonic::from_nonstandard_bytes(entropy);
// TODO: make this return const size, since is hash based
let seed = mnemonic.generate_seed(None); let seed = mnemonic.generate_seed(None);
// TODO: should this allow for customizing the account index from 0? Potential for key reuse // TODO: should this allow for customizing the account index from 0? Potential for key reuse
@ -213,7 +212,7 @@ fn bottoms_up(key_discovery: &Path, threshold: u8, output_shardfile: &Path, outp
.set_storage_encryption(), .set_storage_encryption(),
KeyFlags::empty().set_authentication(), KeyFlags::empty().set_authentication(),
]; ];
let xprv = XPrv::new(VariableLengthSeed::new(&seed)) let xprv = XPrv::new(seed)
.expect("could not construct master key from seed") .expect("could not construct master key from seed")
.derive_path(&path)?; .derive_path(&path)?;
let userid = UserID::from(user_id); let userid = UserID::from(user_id);

7
crates/util/keyfork-mnemonic-util/src/lib.rs
View File

@ -408,7 +408,7 @@ where
&self, &self,
passphrase: impl Into<Option<&'a str>>, passphrase: impl Into<Option<&'a str>>,
) -> Result<Vec<u8>, MnemonicGenerationError> { ) -> Result<Vec<u8>, MnemonicGenerationError> {
Ok(self.generate_seed(passphrase)) Ok(self.generate_seed(passphrase).to_vec())
} }
/// Create a BIP-0032 seed from the provided data and an optional passphrase. /// Create a BIP-0032 seed from the provided data and an optional passphrase.
@ -416,8 +416,7 @@ where
/// # Panics /// # Panics
/// The function may panic if the HmacSha512 function returns an error. The only error the /// The function may panic if the HmacSha512 function returns an error. The only error the
/// HmacSha512 function should return is an invalid length, which should not be possible. /// HmacSha512 function should return is an invalid length, which should not be possible.
/// pub fn generate_seed<'a>(&self, passphrase: impl Into<Option<&'a str>>) -> [u8; 64] {
pub fn generate_seed<'a>(&self, passphrase: impl Into<Option<&'a str>>) -> Vec<u8> {
let passphrase = passphrase.into(); let passphrase = passphrase.into();
let mut seed = [0u8; 64]; let mut seed = [0u8; 64];
@ -425,7 +424,7 @@ where
let salt = ["mnemonic", passphrase.unwrap_or("")].join(""); let salt = ["mnemonic", passphrase.unwrap_or("")].join("");
pbkdf2::<Hmac<Sha512>>(mnemonic.as_bytes(), salt.as_bytes(), 2048, &mut seed) pbkdf2::<Hmac<Sha512>>(mnemonic.as_bytes(), salt.as_bytes(), 2048, &mut seed)
.expect(bug!("HmacSha512 InvalidLength should be infallible")); .expect(bug!("HmacSha512 InvalidLength should be infallible"));
seed.to_vec() seed
} }
/// Encode the mnemonic into a list of integers 11 bits in length, matching the length of a /// Encode the mnemonic into a list of integers 11 bits in length, matching the length of a