diff --git a/implementations/Libp2pComponent.ts b/implementations/Libp2pComponent.ts
index ef26d2b..9364cfb 100644
--- a/implementations/Libp2pComponent.ts
+++ b/implementations/Libp2pComponent.ts
@@ -218,11 +218,9 @@ export class Libp2pComponent implements ILibp2pComponent {
       tcpPort: this.options.config?.tcpPort,
       wsPort: this.options.config?.wsPort,
       // Convert Uint8Array to base64 for passing to native module
-      keypair: this.options.keypair
-        ? {
-            privateKey: btoa(String.fromCharCode(...this.options.keypair.privateKey)),
-            publicKey: btoa(String.fromCharCode(...this.options.keypair.publicKey)),
-          }
+      // Using Buffer.from for proper encoding of binary data
+      privateKey: this.options.keypair?.privateKey
+        ? Buffer.from(this.options.keypair.privateKey).toString('base64')
         : undefined,
     };