Enum DerivationStyle 

#[non_exhaustive]
pub enum DerivationStyle {
    Standard,
    LedgerLive,
    LedgerLegacy,
}

Ethereum derivation path styles for different wallet software.

Different hardware and software wallets use different derivation paths even though they all follow BIP-44 principles. This enum provides the most common styles for maximum compatibility.

Path Specifications (as of 2024)

• MetaMask/Trezor: Standard BIP-44 m/44'/60'/0'/0/{index}
• Ledger Live: Account-based m/44'/60'/{index}'/0/0
• Ledger Legacy: MEW/MyCrypto compatible m/44'/60'/0'/{index}

Example

use kobe_eth::DerivationStyle;

let style = DerivationStyle::LedgerLive;
assert_eq!(style.path(0), "m/44'/60'/0'/0/0");
assert_eq!(style.path(1), "m/44'/60'/1'/0/0");

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

Standard

Standard BIP-44 path used by MetaMask and Trezor.

Path format: m/44'/60'/0'/0/{index}

This is the most widely adopted standard where:

• Purpose: 44’ (BIP-44)
• Coin type: 60’ (Ethereum)
• Account: 0’ (fixed)
• Change: 0 (external)
• Address index: variable

LedgerLive

Ledger Live derivation path.

Path format: m/44'/60'/{index}'/0/0

Ledger Live treats each index as a separate account:

• Purpose: 44’ (BIP-44)
• Coin type: 60’ (Ethereum)
• Account: variable (hardened)
• Change: 0 (external)
• Address index: 0 (fixed)

LedgerLegacy

Ledger Legacy derivation path (MEW/MyCrypto compatible).

Path format: m/44'/60'/0'/{index}

Used by older Ledger Chrome app and compatible with MEW/MyCrypto:

• Purpose: 44’ (BIP-44)
• Coin type: 60’ (Ethereum)
• Account: 0’ (fixed)
• Address index: variable (at 4th level, non-hardened)

Implementations

impl DerivationStyle

pub fn path(self, index: u32) -> String

Generate the derivation path string for a given index.

Arguments

• index - The address/account index to derive

Returns

A BIP-32 derivation path string.

pub const fn name(self) -> &'static str

Get the human-readable name of this derivation style.

pub const fn id(self) -> &'static str

Get a short identifier for CLI usage.

pub const fn all() -> &'static [Self]

Get all available derivation styles.

Trait Implementations

impl Clone for DerivationStyle

fn clone(&self) -> DerivationStyle

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for DerivationStyle

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Default for DerivationStyle

fn default() -> DerivationStyle

Returns the “default value” for a type.

impl Display for DerivationStyle

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl FromStr for DerivationStyle

type Err = ParseDerivationStyleError

The associated error which can be returned from parsing.

fn from_str(s: &str) -> Result<Self, Self::Err>

Parses a string s to return a value of this type.

impl Hash for DerivationStyle

fn hash<__H: Hasher>(&self, state: &mut __H)

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl PartialEq for DerivationStyle

fn eq(&self, other: &DerivationStyle) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Copy for DerivationStyle

impl Eq for DerivationStyle

impl StructuralPartialEq for DerivationStyle