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Fix base64 encoding for Node.js compatibility

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Use Buffer for base64 encoding/decoding to ensure compatibility with Node.js clients using NodeCryptoAdapter. The previous btoa/atob implementation caused signature verification failures when clients used Buffer-based encoding.

Fixes: Invalid signature errors when using NodeCryptoAdapter
This commit is contained in:
Bas van den Aakster
2025-12-13 15:08:56 +01:00
parent 2a648c5818
commit b5799fa9ac
1 changed files with 5 additions and 6 deletions
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11
src/crypto.ts
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@@ -5,6 +5,7 @@
*/ */
import * as ed25519 from '@noble/ed25519'; import * as ed25519 from '@noble/ed25519';
import { Buffer } from 'node:buffer';
// Set SHA-512 hash function for ed25519 (required in @noble/ed25519 v3+) // Set SHA-512 hash function for ed25519 (required in @noble/ed25519 v3+)
// Uses Web Crypto API (compatible with both Node.js and Cloudflare Workers) // Uses Web Crypto API (compatible with both Node.js and Cloudflare Workers)
@@ -34,20 +35,18 @@ export function generateAnonymousUsername(): string {
/** /**
* Convert Uint8Array to base64 string * Convert Uint8Array to base64 string
* Uses Buffer for compatibility with Node.js-based clients
*/ */
function bytesToBase64(bytes: Uint8Array): string { function bytesToBase64(bytes: Uint8Array): string {
const binString = Array.from(bytes, (byte) => return Buffer.from(bytes).toString('base64');
String.fromCodePoint(byte)
).join('');
return btoa(binString);
} }
/** /**
* Convert base64 string to Uint8Array * Convert base64 string to Uint8Array
* Uses Buffer for compatibility with Node.js-based clients
*/ */
function base64ToBytes(base64: string): Uint8Array { function base64ToBytes(base64: string): Uint8Array {
const binString = atob(base64); return new Uint8Array(Buffer.from(base64, 'base64'));
return Uint8Array.from(binString, (char) => char.codePointAt(0)!);
} }
/** /**