fix js-waku utils

packages/status-js/src/topics.ts

@@ -1,10 +1,9 @@
 import { BN } from 'bn.js'
 import { derive } from 'ecies-geth'
 import { ec } from 'elliptic'
-import { bufToHex } from 'js-waku/build/main/lib/utils'
 
 import { idToContentTopic } from './contentTopic'
-import { hexToBuf } from './utils'
+import { bufToHex, hexToBuf } from './utils'
 
 import type { Identity } from '.'
 
@@ -40,7 +39,7 @@ export async function getNegotiatedTopic(
   const key = EC.keyFromPublic(publicKey.slice(2), 'hex')
   const sharedSecret = await derive(
     Buffer.from(identity.privateKey),
-    hexToBuf(key.getPublic('hex'))
+    Buffer.concat([hexToBuf(key.getPublic('hex'))])
   )
   return idToContentTopic(bufToHex(sharedSecret))
 }

packages/status-js/src/utils.ts

@@ -8,14 +8,16 @@ import type { Waku } from 'js-waku'
 
 const EC = new ec('secp256k1')
 
-const hexToBuf = utils.hexToBuf
+// TODO: rename
+const hexToBuf = utils.hexToBytes
 export { hexToBuf }
 
+// TODO: rename
 /**
  * Return hex string with 0x prefix (commonly used for string format of a community id/public key.
  */
 export function bufToHex(buf: Uint8Array): string {
-  return '0x' + utils.bufToHex(buf)
+  return '0x' + utils.bytesToHex(buf)
 }
 
 export function compressPublicKey(key: Uint8Array): string {