chore: remove unnecessary functions

packages/enr/src/enr.ts

@@ -27,7 +27,7 @@ import { compressPublicKey, keccak256, verifySignature } from "./crypto.js";
 import {
   createKeypair,
   createKeypairFromPeerId,
-  createPeerIdFromKeypair,
+  createPeerIdFromPublicKey,
   IKeypair,
   KeypairType,
 } from "./keypair/index.js";
@@ -63,8 +63,7 @@ export class ENR extends Map<ENRKey, ENRValue> implements IEnr {
     try {
       const publicKey = enr.publicKey;
       if (publicKey) {
-        const keypair = createKeypair(enr.keypairType, undefined, publicKey);
+        enr.peerId = await createPeerIdFromPublicKey(publicKey);
-        enr.peerId = await createPeerIdFromKeypair(keypair);
       }
     } catch (e) {
       log("Could not calculate peer id for ENR", e);

packages/enr/src/keypair/index.ts

@@ -10,6 +10,13 @@ export const ERR_TYPE_NOT_IMPLEMENTED = "Keypair type not implemented";
 export * from "./types.js";
 export * from "./secp256k1.js";
 
+export function createPeerIdFromPublicKey(
+  publicKey: Uint8Array
+): Promise<PeerId> {
+  const _publicKey = new supportedKeys.secp256k1.Secp256k1PublicKey(publicKey);
+  return peerIdFromKeys(_publicKey.bytes, undefined);
+}
+
 export function createKeypair(
   type: KeypairType,
   privateKey?: Uint8Array,
@@ -23,26 +30,6 @@ export function createKeypair(
   }
 }
 
-export async function createPeerIdFromKeypair(
-  keypair: IKeypair
-): Promise<PeerId> {
-  switch (keypair.type) {
-    case KeypairType.secp256k1: {
-      const publicKey = new supportedKeys.secp256k1.Secp256k1PublicKey(
-        keypair.publicKey
-      );
-
-      const privateKey = keypair.hasPrivateKey()
-        ? new supportedKeys.secp256k1.Secp256k1PrivateKey(keypair.privateKey)
-        : undefined;
-
-      return peerIdFromKeys(publicKey.bytes, privateKey?.bytes);
-    }
-    default:
-      throw new Error(ERR_TYPE_NOT_IMPLEMENTED);
-  }
-}
-
 export async function createKeypairFromPeerId(
   peerId: PeerId
 ): Promise<IKeypair> {