launchpad: Use HdPath type

packages/launchpad/src/secp256k1wallet.ts

@@ -1,12 +1,12 @@
 import {
   Bip39,
   EnglishMnemonic,
+  HdPath,
   pathToString,
   Random,
   Secp256k1,
   Slip10,
   Slip10Curve,
-  Slip10RawIndex,
   stringToPath,
 } from "@cosmjs/crypto";
 import { fromBase64, fromUtf8, toBase64, toUtf8 } from "@cosmjs/encoding";
@@ -104,7 +104,7 @@ export function extractKdfConfiguration(serialization: string): KdfConfiguration
  * Derivation information required to derive a keypair and an address from a mnemonic.
  */
 interface Secp256k1Derivation {
-  readonly hdPath: readonly Slip10RawIndex[];
+  readonly hdPath: HdPath;
   readonly prefix: string;
 }
 
@@ -118,7 +118,7 @@ export class Secp256k1Wallet implements OfflineSigner {
    */
   public static async fromMnemonic(
     mnemonic: string,
-    hdPath: readonly Slip10RawIndex[] = makeCosmoshubPath(0),
+    hdPath: HdPath = makeCosmoshubPath(0),
     prefix = "cosmos",
   ): Promise<Secp256k1Wallet> {
     const mnemonicChecked = new EnglishMnemonic(mnemonic);
@@ -143,7 +143,7 @@ export class Secp256k1Wallet implements OfflineSigner {
    */
   public static async generate(
     length: 12 | 15 | 18 | 21 | 24 = 12,
-    hdPath: readonly Slip10RawIndex[] = makeCosmoshubPath(0),
+    hdPath: HdPath = makeCosmoshubPath(0),
     prefix = "cosmos",
   ): Promise<Secp256k1Wallet> {
     const entropyLength = 4 * Math.floor((11 * length) / 33);
@@ -223,7 +223,7 @@ export class Secp256k1Wallet implements OfflineSigner {
 
   private constructor(
     mnemonic: EnglishMnemonic,
-    hdPath: readonly Slip10RawIndex[],
+    hdPath: HdPath,
     privkey: Uint8Array,
     pubkey: Uint8Array,
     prefix: string,

packages/launchpad/src/wallet.ts

@@ -1,5 +1,6 @@
 import {
   Argon2id,
+  HdPath,
   isArgon2idOptions,
   Random,
   Sha256,
@@ -52,7 +53,7 @@ export function prehash(bytes: Uint8Array, type: PrehashType): Uint8Array {
  * The Cosmoshub derivation path in the form `m/44'/118'/0'/0/a`
  * with 0-based account index `a`.
  */
-export function makeCosmoshubPath(a: number): readonly Slip10RawIndex[] {
+export function makeCosmoshubPath(a: number): HdPath {
   return [
     Slip10RawIndex.hardened(44),
     Slip10RawIndex.hardened(118),

packages/launchpad/types/secp256k1wallet.d.ts

@@ -1,4 +1,4 @@
-import { Slip10RawIndex } from "@cosmjs/crypto";
+import { HdPath } from "@cosmjs/crypto";
 import { StdSignature } from "./types";
 import { AccountData, EncryptionConfiguration, KdfConfiguration, OfflineSigner, PrehashType } from "./wallet";
 /**
@@ -40,11 +40,7 @@ export declare class Secp256k1Wallet implements OfflineSigner {
    * @param hdPath The BIP-32/SLIP-10 derivation path. Defaults to the Cosmos Hub/ATOM path `m/44'/118'/0'/0/0`.
    * @param prefix The bech32 address prefix (human readable part). Defaults to "cosmos".
    */
-  static fromMnemonic(
-    mnemonic: string,
-    hdPath?: readonly Slip10RawIndex[],
-    prefix?: string,
-  ): Promise<Secp256k1Wallet>;
+  static fromMnemonic(mnemonic: string, hdPath?: HdPath, prefix?: string): Promise<Secp256k1Wallet>;
   /**
    * Generates a new wallet with a BIP39 mnemonic of the given length.
    *
@@ -54,7 +50,7 @@ export declare class Secp256k1Wallet implements OfflineSigner {
    */
   static generate(
     length?: 12 | 15 | 18 | 21 | 24,
-    hdPath?: readonly Slip10RawIndex[],
+    hdPath?: HdPath,
     prefix?: string,
   ): Promise<Secp256k1Wallet>;
   /**

packages/launchpad/types/wallet.d.ts

@@ -1,4 +1,4 @@
-import { Slip10RawIndex } from "@cosmjs/crypto";
+import { HdPath } from "@cosmjs/crypto";
 import { StdSignature } from "./types";
 export declare type PrehashType = "sha256" | "sha512" | null;
 export declare type Algo = "secp256k1" | "ed25519" | "sr25519";
@@ -22,7 +22,7 @@ export declare function prehash(bytes: Uint8Array, type: PrehashType): Uint8Arra
  * The Cosmoshub derivation path in the form `m/44'/118'/0'/0/a`
  * with 0-based account index `a`.
  */
-export declare function makeCosmoshubPath(a: number): readonly Slip10RawIndex[];
+export declare function makeCosmoshubPath(a: number): HdPath;
 /**
  * A fixed salt is chosen to archive a deterministic password to key derivation.
  * This reduces the scope of a potential rainbow attack to all CosmJS users.