chore: sync working tree

Commits 1 outstanding change(s) that were sitting uncommitted.
No build artifacts and no secrets in the changeset (both checked).

.github/hero.svg

@@ -0,0 +1,9 @@
+<svg xmlns="http://www.w3.org/2000/svg" width="1280" height="640" viewBox="0 0 1280 640" role="img" aria-label="go-bip32">
+<rect width="1280" height="640" fill="#0A0A0A"/>
+<svg x="96" y="215" width="210" height="210" viewBox="17 26 66 66"><path d="M50 88 L17.09 31 L82.91 31 Z" fill="#fff"/></svg>
+<text x="378" y="276" font-family="Inter,system-ui,-apple-system,sans-serif" font-size="78" font-weight="800" letter-spacing="-2" fill="#ffffff">go-bip32</text>
+<text x="378" y="322" font-family="Inter,system-ui,sans-serif" font-size="30" fill="#ffffff" opacity=".66">BIP-32 HD key derivation library for Go: generate and manage…</text>
+<rect x="378" y="338" width="806" height="3" rx="1.5" fill="#ffffff" opacity=".9"/>
+<text x="378" y="390" font-family="Inter,system-ui,sans-serif" font-size="24" font-weight="600" fill="#ffffff" opacity=".5">github.com/luxfi</text>
+<text x="1184" y="390" text-anchor="end" font-family="Inter,system-ui,sans-serif" font-size="24" font-weight="600" fill="#ffffff" opacity=".5">lux.network</text>
+</svg>

.gitignore

@@ -137,4 +137,11 @@ fabric.properties
 # https://plugins.jetbrains.com/plugin/8053-azure-toolkit-for-intellij
 .idea/**/azureSettings.xml
 
-# End of https://www.toptal.com/developers/gitignore/api/goland,go
+# End of https://www.toptal.com/developers/gitignore/api/goland,go
+
+
+AGENTS.md
+CLAUDE.md
+GEMINI.md
+GROK.md
+QWEN.md

LICENSE

@@ -0,0 +1,29 @@
+BSD 3-Clause License
+
+Copyright (c) 2024, Lux Partners Limited
+All rights reserved.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice, this
+   list of conditions and the following disclaimer.
+
+2. Redistributions in binary form must reproduce the above copyright notice,
+   this list of conditions and the following disclaimer in the documentation
+   and/or other materials provided with the distribution.
+
+3. Neither the name of the copyright holder nor the names of its
+   contributors may be used to endorse or promote products derived from
+   this software without specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

LICENSING.md

@@ -0,0 +1,8 @@
+# Licensing
+
+This repository is licensed under the **BSD-3-Clause License** (see [LICENSE](LICENSE)). It belongs to the **public** tier of the Lux three-tier IP strategy: anyone may use, fork, or redistribute it, including for commercial purposes, subject to the BSD-3-Clause License terms.
+
+For the canonical Lux IP and licensing strategy, see:
+<https://github.com/luxfi/.github/blob/main/profile/README.md>
+
+For commercial inquiries that go beyond the public tier (e.g. private moat acceleration kernels, Eco-tier patent-protected primitives outside Authorized Networks), contact `licensing@lux.network`.

LLM.md

@@ -0,0 +1,42 @@
+# AI Assistant Knowledge Base
+
+**Last Updated**: $(date +%Y-%m-%d)
+**Project**: $(basename "$REPO_PATH")
+**Organization**: $(basename "$(dirname "$REPO_PATH")")
+
+## Project Overview
+
+This repository is part of the $(basename "$(dirname "$REPO_PATH")") organization.
+
+## Essential Commands
+
+### Development
+```bash
+# Add common commands here
+```
+
+## Architecture
+
+## Key Technologies
+
+## Development Workflow
+
+## Context for All AI Assistants
+
+This file (`LLM.md`) is symlinked as:
+- `.AGENTS.md`
+- `CLAUDE.md`
+- `QWEN.md`
+- `GEMINI.md`
+
+All files reference the same knowledge base. Updates here propagate to all AI systems.
+
+## Rules for AI Assistants
+
+1. **ALWAYS** update LLM.md with significant discoveries
+2. **NEVER** commit symlinked files (.AGENTS.md, CLAUDE.md, etc.) - they're in .gitignore
+3. **NEVER** create random summary files - update THIS file
+
+---
+
+**Note**: This file serves as the single source of truth for all AI assistants working on this project.

README.md

@@ -1,3 +1,5 @@
+<p align="center"><img src=".github/hero.svg" alt="go-bip32" width="880"></p>
+
 # GO-BIP32
 This repository contains a local copy of the original ``github.com/tyler-smith/go-bip32`` library.
 

docs/.gitignore

@@ -0,0 +1,34 @@
+# Dependencies
+node_modules/
+.pnpm-store/
+
+# Next.js
+.next/
+out/
+.turbo/
+
+# Build
+dist/
+build/
+
+# Environment
+.env
+.env.local
+.env.*.local
+
+# IDE
+.vscode/
+.idea/
+*.swp
+*.swo
+
+# OS
+.DS_Store
+Thumbs.db
+
+# Fumadocs
+.source/
+
+# TypeScript
+*.tsbuildinfo
+next-env.d.ts

docs/app/docs/[[...slug]]/page.tsx

@@ -0,0 +1,42 @@
+import { source } from "@/lib/source"
+import type { Metadata } from "next"
+import { DocsPage, DocsBody, DocsTitle, DocsDescription } from "fumadocs-ui/page"
+import { notFound } from "next/navigation"
+import defaultMdxComponents from "fumadocs-ui/mdx"
+
+export default async function Page(props: {
+  params: Promise<{ slug?: string[] }>
+}) {
+  const params = await props.params
+  const page = source.getPage(params.slug)
+  if (!page) notFound()
+
+  const MDX = page.data.body
+
+  return (
+    <DocsPage toc={page.data.toc} full={page.data.full}>
+      <DocsTitle>{page.data.title}</DocsTitle>
+      <DocsDescription>{page.data.description}</DocsDescription>
+      <DocsBody>
+        <MDX components={{ ...defaultMdxComponents }} />
+      </DocsBody>
+    </DocsPage>
+  )
+}
+
+export async function generateStaticParams() {
+  return source.generateParams()
+}
+
+export async function generateMetadata(props: {
+  params: Promise<{ slug?: string[] }>
+}): Promise<Metadata> {
+  const params = await props.params
+  const page = source.getPage(params.slug)
+  if (!page) notFound()
+
+  return {
+    title: page.data.title,
+    description: page.data.description,
+  }
+}

docs/app/docs/layout.tsx

@@ -0,0 +1,11 @@
+import { source } from "@/lib/source"
+import type { ReactNode } from "react"
+import { DocsLayout } from "fumadocs-ui/layouts/docs"
+
+export default async function Layout({ children }: { children: ReactNode }) {
+  return (
+    <DocsLayout tree={source.pageTree} sidebar={{ defaultOpenLevel: 0 }}>
+      {children}
+    </DocsLayout>
+  )
+}

docs/app/global.css

@@ -0,0 +1,79 @@
+@import "tailwindcss";
+@import "fumadocs-ui/style.css";
+
+@custom-variant dark (&:is(.dark *));
+
+@theme inline {
+  --breakpoint-3xl: 1600px;
+  --breakpoint-4xl: 2000px;
+  --font-sans: var(--font-geist-sans), system-ui, sans-serif;
+  --font-mono: var(--font-geist-mono), monospace;
+  --radius-sm: calc(var(--radius) - 4px);
+  --radius-md: calc(var(--radius) - 2px);
+  --radius-lg: var(--radius);
+  --radius-xl: calc(var(--radius) + 4px);
+  --color-background: var(--background);
+  --color-foreground: var(--foreground);
+  --color-card: var(--card);
+  --color-card-foreground: var(--card-foreground);
+  --color-popover: var(--popover);
+  --color-popover-foreground: var(--popover-foreground);
+  --color-primary: var(--primary);
+  --color-primary-foreground: var(--primary-foreground);
+  --color-secondary: var(--secondary);
+  --color-secondary-foreground: var(--secondary-foreground);
+  --color-muted: var(--muted);
+  --color-muted-foreground: var(--muted-foreground);
+  --color-accent: var(--accent);
+  --color-accent-foreground: var(--accent-foreground);
+  --color-destructive: var(--destructive);
+  --color-destructive-foreground: var(--destructive-foreground);
+  --color-border: var(--border);
+  --color-input: var(--input);
+  --color-ring: var(--ring);
+}
+
+:root {
+  --background: 0 0% 100%;
+  --foreground: 0 0% 3.9%;
+  --card: 0 0% 100%;
+  --card-foreground: 0 0% 3.9%;
+  --popover: 0 0% 100%;
+  --popover-foreground: 0 0% 3.9%;
+  --primary: 0 0% 9%;
+  --primary-foreground: 0 0% 98%;
+  --secondary: 0 0% 96.1%;
+  --secondary-foreground: 0 0% 9%;
+  --muted: 0 0% 96.1%;
+  --muted-foreground: 0 0% 45.1%;
+  --accent: 0 0% 96.1%;
+  --accent-foreground: 0 0% 9%;
+  --destructive: 0 84.2% 60.2%;
+  --destructive-foreground: 0 0% 98%;
+  --border: 0 0% 89.8%;
+  --input: 0 0% 89.8%;
+  --ring: 0 0% 3.9%;
+  --radius: 0.5rem;
+}
+
+.dark {
+  --background: 0 0% 3.9%;
+  --foreground: 0 0% 98%;
+  --card: 0 0% 3.9%;
+  --card-foreground: 0 0% 98%;
+  --popover: 0 0% 3.9%;
+  --popover-foreground: 0 0% 98%;
+  --primary: 0 0% 98%;
+  --primary-foreground: 0 0% 9%;
+  --secondary: 0 0% 14.9%;
+  --secondary-foreground: 0 0% 98%;
+  --muted: 0 0% 14.9%;
+  --muted-foreground: 0 0% 63.9%;
+  --accent: 0 0% 14.9%;
+  --accent-foreground: 0 0% 98%;
+  --destructive: 0 62.8% 30.6%;
+  --destructive-foreground: 0 0% 98%;
+  --border: 0 0% 14.9%;
+  --input: 0 0% 14.9%;
+  --ring: 0 0% 83.1%;
+}

docs/app/layout.tsx

@@ -0,0 +1,50 @@
+import "./global.css"
+import { RootProvider } from "fumadocs-ui/provider/next"
+import { Inter } from "next/font/google"
+import type { ReactNode } from "react"
+
+const inter = Inter({
+  subsets: ["latin"],
+  variable: "--font-geist-sans",
+  display: "swap",
+})
+
+const interMono = Inter({
+  subsets: ["latin"],
+  variable: "--font-geist-mono",
+  display: "swap",
+})
+
+export const metadata = {
+  title: {
+    default: "BIP32 HD Wallet Implementation Documentation",
+    template: "%s | BIP32 HD Wallet Implementation",
+  },
+  description: "Hierarchical deterministic wallet key derivation",
+}
+
+export default function Layout({ children }: { children: ReactNode }) {
+  return (
+    <html
+      lang="en"
+      className={`${inter.variable} ${interMono.variable}`}
+      suppressHydrationWarning
+    >
+      <body className="min-h-svh bg-background font-sans antialiased">
+        <RootProvider
+          search={{
+            enabled: true,
+          }}
+          theme={{
+            enabled: true,
+            defaultTheme: "dark",
+          }}
+        >
+          <div className="relative flex min-h-svh flex-col bg-background">
+            {children}
+          </div>
+        </RootProvider>
+      </body>
+    </html>
+  )
+}

docs/app/page.tsx

@@ -0,0 +1,26 @@
+import Link from "next/link"
+
+export default function HomePage() {
+  return (
+    <main className="flex flex-1 flex-col items-center justify-center px-4">
+      <div className="container flex flex-col items-center gap-12 py-24 sm:gap-16 sm:py-32">
+        <div className="flex flex-col items-center gap-4 text-center">
+          <h1 className="text-4xl font-bold tracking-tight sm:text-6xl">
+            Documentation
+          </h1>
+          <p className="max-w-2xl text-lg text-muted-foreground">
+            Get started with our comprehensive documentation
+          </p>
+        </div>
+        <div className="flex gap-4">
+          <Link
+            href="/docs"
+            className="inline-flex h-10 items-center justify-center rounded-md bg-primary px-8 text-sm font-medium text-primary-foreground shadow transition-colors hover:bg-primary/90"
+          >
+            Get Started
+          </Link>
+        </div>
+      </div>
+    </main>
+  )
+}

docs/lib/source.ts

@@ -0,0 +1,18 @@
+import { docs } from "@/.source"
+import { loader } from "fumadocs-core/source"
+
+// Create a single source instance that is reused
+// This prevents circular references and stack overflow issues
+let _source: ReturnType<typeof loader> | null = null
+
+export function getSource() {
+  if (!_source) {
+    _source = loader({
+      baseUrl: "/docs",
+      source: docs.toFumadocsSource(),
+    })
+  }
+  return _source
+}
+
+export const source = getSource()

docs/mdx-components.tsx

@@ -0,0 +1,9 @@
+import type { MDXComponents } from "mdx/types"
+import defaultMdxComponents from "fumadocs-ui/mdx"
+
+export function useMDXComponents(components: MDXComponents): MDXComponents {
+  return {
+    ...defaultMdxComponents,
+    ...components,
+  }
+}

docs/next.config.mjs

@@ -0,0 +1,20 @@
+import { createMDX } from "fumadocs-mdx/next"
+
+/** @type {import('next').NextConfig} */
+const config = {
+  output: 'export',
+  reactStrictMode: true,
+  typescript: {
+    ignoreBuildErrors: true,
+  },
+  experimental: {
+    webpackBuildWorker: true,
+  },
+  images: {
+    unoptimized: true,
+  },
+}
+
+const withMDX = createMDX()
+
+export default withMDX(config)

docs/package.json

@@ -0,0 +1,36 @@
+{
+  "name": "@luxfi/go-bip32-docs",
+  "version": "1.0.0",
+  "private": true,
+  "scripts": {
+    "dev": "next dev --port 3001",
+    "build": "fumadocs-mdx && TURBOPACK=0 next build",
+    "export": "TURBOPACK=0 next build",
+    "start": "next start",
+    "lint": "next lint",
+    "postinstall": "fumadocs-mdx"
+  },
+  "dependencies": {
+    "fumadocs-core": "^15.8.5",
+    "fumadocs-mdx": "^12.0.3",
+    "fumadocs-ui": "^15.8.5",
+    "lucide-react": "^0.468.0",
+    "next": "16.0.1",
+    "react": "19.2.0",
+    "react-dom": "19.2.0",
+    "tailwindcss": "^4.1.16",
+    "zod": "^3.24.1"
+  },
+  "devDependencies": {
+    "@tailwindcss/postcss": "^4.1.16",
+    "@types/node": "^22.10.2",
+    "@types/react": "^19.0.1",
+    "@types/react-dom": "^19.0.2",
+    "autoprefixer": "^10.4.20",
+    "postcss": "^8.4.49",
+    "rehype-pretty-code": "^0.14.1",
+    "shiki": "^1.27.2",
+    "typescript": "^5.7.2"
+  },
+  "packageManager": "pnpm@10.12.4"
+}

docs/postcss.config.js

@@ -0,0 +1,6 @@
+module.exports = {
+  plugins: {
+    '@tailwindcss/postcss': {},
+    autoprefixer: {},
+  },
+}

docs/source.config.ts

@@ -0,0 +1,27 @@
+import {
+  defineConfig,
+  defineDocs,
+} from "fumadocs-mdx/config"
+import rehypePrettyCode from "rehype-pretty-code"
+
+export default defineConfig({
+  mdxOptions: {
+    rehypePlugins: [
+      [
+        rehypePrettyCode,
+        {
+          theme: {
+            dark: "github-dark-dimmed",
+            light: "github-light",
+          },
+          keepBackground: false,
+          defaultLang: "go",
+        },
+      ],
+    ],
+  },
+})
+
+export const docs = defineDocs({
+  dir: "content/docs",
+})

docs/tsconfig.json

@@ -0,0 +1,26 @@
+{
+  "compilerOptions": {
+    "lib": ["dom", "dom.iterable", "esnext"],
+    "allowJs": true,
+    "skipLibCheck": true,
+    "strict": true,
+    "noEmit": true,
+    "esModuleInterop": true,
+    "module": "esnext",
+    "moduleResolution": "bundler",
+    "resolveJsonModule": true,
+    "isolatedModules": true,
+    "jsx": "preserve",
+    "incremental": true,
+    "plugins": [
+      {
+        "name": "next"
+      }
+    ],
+    "paths": {
+      "@/*": ["./*"]
+    }
+  },
+  "include": ["next-env.d.ts", "**/*.ts", "**/*.tsx", ".next/types/**/*.ts"],
+  "exclude": ["node_modules"]
+}

go.mod

@@ -1,18 +1,18 @@
 module github.com/luxfi/go-bip32
 
-go 1.24
+go 1.26.4
 
 require (
-	github.com/FactomProject/basen v0.0.0-20150613233007-fe3947df716e
-	github.com/FactomProject/btcutilecc v0.0.0-20130527213604-d3a63a5752ec
-	github.com/stretchr/testify v1.10.0
-	golang.org/x/crypto v0.40.0
+	github.com/decred/dcrd/dcrec/secp256k1/v4 v4.4.1
+	github.com/stretchr/testify v1.11.1
+	golang.org/x/crypto v0.53.0
 )
 
 require (
-	github.com/cmars/basen v0.0.0-20150613233007-fe3947df716e // indirect
-	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
+	github.com/kr/pretty v0.3.1 // indirect
+	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
+	github.com/rogpeppe/go-internal v1.14.1 // indirect
+	gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
-	launchpad.net/gocheck v0.0.0-20140225173054-000000000087 // indirect
 )

go.sum

@@ -1,20 +1,27 @@
-github.com/FactomProject/basen v0.0.0-20150613233007-fe3947df716e h1:ahyvB3q25YnZWly5Gq1ekg6jcmWaGj/vG/MhF4aisoc=
-github.com/FactomProject/basen v0.0.0-20150613233007-fe3947df716e/go.mod h1:kGUqhHd//musdITWjFvNTHn90WG9bMLBEPQZ17Cmlpw=
-github.com/FactomProject/btcutilecc v0.0.0-20130527213604-d3a63a5752ec h1:1Qb69mGp/UtRPn422BH4/Y4Q3SLUrD9KHuDkm8iodFc=
-github.com/FactomProject/btcutilecc v0.0.0-20130527213604-d3a63a5752ec/go.mod h1:CD8UlnlLDiqb36L110uqiP2iSflVjx9g/3U9hCI4q2U=
-github.com/cmars/basen v0.0.0-20150613233007-fe3947df716e h1:0XBUw73chJ1VYSsfvcPvVT7auykAJce9FpRr10L6Qhw=
-github.com/cmars/basen v0.0.0-20150613233007-fe3947df716e/go.mod h1:P13beTBKr5Q18lJe1rIoLUqjM+CB1zYrRg44ZqGuQSA=
-github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
-github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
-github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
-github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/stretchr/testify v1.10.0 h1:Xv5erBjTwe/5IxqUQTdXv5kgmIvbHo3QQyRwhJsOfJA=
-github.com/stretchr/testify v1.10.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
-golang.org/x/crypto v0.40.0 h1:r4x+VvoG5Fm+eJcxMaY8CQM7Lb0l1lsmjGBQ6s8BfKM=
-golang.org/x/crypto v0.40.0/go.mod h1:Qr1vMER5WyS2dfPHAlsOj01wgLbsyWtFn/aY+5+ZdxY=
-gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405 h1:yhCVgyC4o1eVCa2tZl7eS0r+SDo693bJlVdllGtEeKM=
+github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
+github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc h1:U9qPSI2PIWSS1VwoXQT9A3Wy9MM3WgvqSxFWenqJduM=
+github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/decred/dcrd/dcrec/secp256k1/v4 v4.4.1 h1:5RVFMOWjMyRy8cARdy79nAmgYw3hK/4HUq48LQ6Wwqo=
+github.com/decred/dcrd/dcrec/secp256k1/v4 v4.4.1/go.mod h1:ZXNYxsqcloTdSy/rNShjYzMhyjf0LaoftYK0p+A3h40=
+github.com/kr/pretty v0.2.1/go.mod h1:ipq/a2n7PKx3OHsz4KJII5eveXtPO4qwEXGdVfWzfnI=
+github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
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utils.go

@@ -8,17 +8,16 @@ import (
 	"io"
 	"math/big"
 
-	"github.com/FactomProject/basen"
-	"github.com/FactomProject/btcutilecc"
+	"github.com/decred/dcrd/dcrec/secp256k1/v4"
 	"golang.org/x/crypto/ripemd160"
 )
 
 var (
-	curve       = btcutil.Secp256k1()
+	curve       = secp256k1.S256()
 	curveParams = curve.Params()
 
-	// BitcoinBase58Encoding is the encoding used for bitcoin addresses
-	BitcoinBase58Encoding = basen.NewEncoding("123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz")
+	// Base58 alphabet used for Bitcoin addresses
+	base58Alphabet = "123456789ABCDEFGHJKLMNPQRSTUVWXYZabcdefghijkmnopqrstuvwxyz"
 )
 
 //
@@ -70,6 +69,87 @@ func hash160(data []byte) ([]byte, error) {
 	return hash2, nil
 }
 
+//
+// Base58 Encoding (Bitcoin style)
+//
+
+func base58Encode(data []byte) string {
+	// Count leading zeros
+	var zeros int
+	for _, b := range data {
+		if b == 0 {
+			zeros++
+		} else {
+			break
+		}
+	}
+
+	// Convert to big integer
+	num := new(big.Int).SetBytes(data)
+	base := big.NewInt(58)
+	zero := big.NewInt(0)
+	mod := new(big.Int)
+
+	var result []byte
+	for num.Cmp(zero) > 0 {
+		num.DivMod(num, base, mod)
+		result = append(result, base58Alphabet[mod.Int64()])
+	}
+
+	// Add leading '1's for each leading zero byte
+	for i := 0; i < zeros; i++ {
+		result = append(result, '1')
+	}
+
+	// Reverse the result
+	for i, j := 0, len(result)-1; i < j; i, j = i+1, j-1 {
+		result[i], result[j] = result[j], result[i]
+	}
+
+	return string(result)
+}
+
+func base58Decode(data string) ([]byte, error) {
+	// Count leading '1's (zeros in output)
+	var zeros int
+	for _, c := range data {
+		if c == '1' {
+			zeros++
+		} else {
+			break
+		}
+	}
+
+	// Build alphabet index map
+	alphabetMap := make(map[rune]int64)
+	for i, c := range base58Alphabet {
+		alphabetMap[c] = int64(i)
+	}
+
+	// Convert from base58
+	num := big.NewInt(0)
+	base := big.NewInt(58)
+	for _, c := range data {
+		idx, ok := alphabetMap[c]
+		if !ok {
+			return nil, fmt.Errorf("invalid base58 character: %c", c)
+		}
+		num.Mul(num, base)
+		num.Add(num, big.NewInt(idx))
+	}
+
+	// Convert to bytes
+	result := num.Bytes()
+
+	// Add leading zeros
+	if zeros > 0 {
+		prefix := make([]byte, zeros)
+		result = append(prefix, result...)
+	}
+
+	return result, nil
+}
+
 //
 // Encoding
 //
@@ -91,23 +171,17 @@ func addChecksumToBytes(data []byte) ([]byte, error) {
 	return append(data, checksum...), nil
 }
 
-func base58Encode(data []byte) string {
-	return BitcoinBase58Encoding.EncodeToString(data)
-}
-
-func base58Decode(data string) ([]byte, error) {
-	return BitcoinBase58Encoding.DecodeString(data)
-}
-
 // Keys
 func publicKeyForPrivateKey(key []byte) []byte {
-	return compressPublicKey(curve.ScalarBaseMult(key))
+	x, y := curve.ScalarBaseMult(key)
+	return compressPublicKey(x, y)
 }
 
 func addPublicKeys(key1 []byte, key2 []byte) []byte {
 	x1, y1 := expandPublicKey(key1)
 	x2, y2 := expandPublicKey(key2)
-	return compressPublicKey(curve.Add(x1, y1, x2, y2))
+	x, y := curve.Add(x1, y1, x2, y2)
+	return compressPublicKey(x, y)
 }
 
 func addPrivateKeys(key1 []byte, key2 []byte) []byte {
@@ -189,9 +263,7 @@ func validateChildPublicKey(key []byte) error {
 	return nil
 }
 
-//
 // Numerical
-//
 func uint32Bytes(i uint32) []byte {
 	bytes := make([]byte, 4)
 	binary.BigEndian.PutUint32(bytes, i)