src/pages/create/index.tsx

@@ -29,13 +29,13 @@ import { UserComponent } from '../../components/username'
 import { MetadataController, NostrController } from '../../controllers'
 import { appPrivateRoutes } from '../../routes'
 import { State } from '../../store/rootReducer'
-import { ProfileMetadata, User, UserRole } from '../../types'
+import { Meta, ProfileMetadata, User, UserRole } from '../../types'
 import {
   encryptArrayBuffer,
   generateEncryptionKey,
   getHash,
   hexToNpub,
-  pubToHex,
+  npubToHex,
   queryNip05,
   sendDM,
   shorten,
@@ -109,7 +109,7 @@ export const CreatePage = () => {
     }
 
     if (userInput.startsWith('npub')) {
-      const pubkey = await pubToHex(userInput)
+      const pubkey = npubToHex(userInput)
       if (pubkey) {
         addUser(pubkey)
         setUserInput('')
@@ -246,13 +246,13 @@ export const CreatePage = () => {
     if (!signedEvent) return
 
     // create content for meta file
-    const meta = {
+    const meta: Meta = {
-      signers: signers.map((signer) => signer.pubkey),
+      signers: signers.map((signer) => hexToNpub(signer.pubkey)),
-      viewers: viewers.map((viewer) => viewer.pubkey),
+      viewers: viewers.map((viewer) => hexToNpub(viewer.pubkey)),
       fileHashes,
-      submittedBy: usersPubkey,
+      submittedBy: hexToNpub(usersPubkey!),
       signedEvents: {
-        [signedEvent.pubkey]: JSON.stringify(signedEvent, null, 2)
+        [hexToNpub(signedEvent.pubkey)]: JSON.stringify(signedEvent, null, 2)
       }
     }
 

src/pages/login/index.tsx

@@ -18,7 +18,7 @@ import {
 } from '../../store/actions'
 import { LoginMethods } from '../../store/auth/types'
 import { Dispatch } from '../../store/store'
-import { pubToHex, queryNip05 } from '../../utils'
+import { npubToHex, queryNip05 } from '../../utils'
 import styles from './style.module.scss'
 
 export const Login = () => {
@@ -47,9 +47,9 @@ export const Login = () => {
    * Call login function when enter is pressed
    */
   const handleInputKeyDown = (event: any) => {
-    if (event.code === "Enter" || event.code === "NumpadEnter") {
+    if (event.code === 'Enter' || event.code === 'NumpadEnter') {
-      event.preventDefault();
+      event.preventDefault()
-      login()  
+      login()
     }
   }
 
@@ -63,6 +63,7 @@ export const Login = () => {
         dispatch(updateLoginMethod(LoginMethods.extension))
 
         setLoadingSpinnerDesc('Authenticating and finding metadata')
+
         const redirectPath =
           await authController.authAndGetMetadataAndRelaysMap(pubkey)
 
@@ -223,7 +224,7 @@ export const Login = () => {
     const keyEndIndex = inputValue.indexOf('?relay=')
     const key = inputValue.substring(keyStartIndex, keyEndIndex)
 
-    const pubkey = await pubToHex(key)
+    const pubkey = npubToHex(key)
 
     if (!pubkey) {
       toast.error('Invalid pubkey in bunker connection string.')

src/pages/sign/index.tsx

@@ -37,6 +37,7 @@ import {
   getRoboHashPicture,
   hexToNpub,
   parseJson,
+  npubToHex,
   readContentOfZipEntry,
   sendDM,
   shorten,
@@ -89,9 +90,11 @@ export const SignPage = () => {
         } else {
           for (const signer of meta.signers) {
             if (!signedBy.includes(signer)) {
-              setNextSinger(signer)
+              setNextSinger(npubToHex(signer)!)
 
-              if (signer === usersPubkey) {
+              const usersNpub = hexToNpub(usersPubkey!)
+
+              if (signer === usersNpub) {
                 // logged in user is the next signer
                 setSignedStatus(SignedStatus.User_Is_Next_Signer)
               } else {
@@ -288,7 +291,7 @@ export const SignPage = () => {
 
     metaCopy.signedEvents = {
       ...metaCopy.signedEvents,
-      [signedEvent.pubkey]: JSON.stringify(signedEvent, null, 2)
+      [hexToNpub(signedEvent.pubkey)]: JSON.stringify(signedEvent, null, 2)
     }
 
     const stringifiedMeta = JSON.stringify(metaCopy, null, 2)
@@ -321,13 +324,10 @@ export const SignPage = () => {
 
     if (!arrayBuffer) return
 
-    const encryptionKey = await generateEncryptionKey()
+    const key = await generateEncryptionKey()
 
     setLoadingSpinnerDesc('Encrypting zip file')
-    const encryptedArrayBuffer = await encryptArrayBuffer(
+    const encryptedArrayBuffer = await encryptArrayBuffer(arrayBuffer, key)
-      arrayBuffer,
-      encryptionKey
-    )
 
     const blob = new Blob([encryptedArrayBuffer])
 
@@ -347,13 +347,14 @@ export const SignPage = () => {
     if (!fileUrl) return
 
     // check if the current user is the last signer
+    const usersNpub = hexToNpub(usersPubkey!)
     const lastSignerIndex = meta.signers.length - 1
-    const signerIndex = meta.signers.indexOf(usersPubkey!)
+    const signerIndex = meta.signers.indexOf(usersNpub)
     const isLastSigner = signerIndex === lastSignerIndex
 
     // if current user is the last signer, then send DMs to all signers and viewers
     if (isLastSigner) {
-      const userSet = new Set<string>()
+      const userSet = new Set<`npub1${string}`>()
 
       userSet.add(meta.submittedBy)
 
@@ -371,27 +372,19 @@ export const SignPage = () => {
         // todo: execute in parallel
         await sendDM(
           fileUrl,
-          encryptionKey,
+          key,
-          user,
+          npubToHex(user)!,
           nostrController,
           false,
           setAuthUrl
         )
       }
-
-      // when user is the last signer and has sent
-      // the final document to all the signers and viewers
-      // update search params with updated file url and encryption key
-      setSearchParams({
-        file: fileUrl,
-        key: encryptionKey
-      })
     } else {
       const nextSigner = meta.signers[signerIndex + 1]
       await sendDM(
         fileUrl,
-        encryptionKey,
+        key,
-        nextSigner,
+        npubToHex(nextSigner)!,
         nostrController,
         false,
         setAuthUrl
@@ -399,6 +392,12 @@ export const SignPage = () => {
     }
 
     setIsLoading(false)
+
+    // update search params with updated file url and encryption key
+    setSearchParams({
+      file: fileUrl,
+      key: key
+    })
   }
 
   /**
@@ -408,10 +407,11 @@ export const SignPage = () => {
   const handleExport = async () => {
     if (!meta || !zip || !usersPubkey) return
 
+    const usersNpub = hexToNpub(usersPubkey)
     if (
-      !meta.signers.includes(usersPubkey) &&
+      !meta.signers.includes(usersNpub) &&
-      !meta.viewers.includes(usersPubkey) &&
+      !meta.viewers.includes(usersNpub) &&
-      meta.submittedBy !== usersPubkey
+      meta.submittedBy !== usersNpub
     )
       return
 
@@ -568,13 +568,14 @@ const DisplayMeta = ({ meta, nextSigner }: DisplayMetaProps) => {
 
   useEffect(() => {
     meta.signers.forEach((signer) => {
+      const hexKey = npubToHex(signer)
       setUsers((prev) => {
-        if (prev.findIndex((user) => user.pubkey === signer) !== -1) return prev
+        if (prev.findIndex((user) => user.pubkey === hexKey) !== -1) return prev
 
         return [
           ...prev,
           {
-            pubkey: signer,
+            pubkey: hexKey!,
             role: UserRole.signer
           }
         ]
@@ -582,13 +583,14 @@ const DisplayMeta = ({ meta, nextSigner }: DisplayMetaProps) => {
     })
 
     meta.viewers.forEach((viewer) => {
+      const hexKey = npubToHex(viewer)
       setUsers((prev) => {
-        if (prev.findIndex((user) => user.pubkey === viewer) !== -1) return prev
+        if (prev.findIndex((user) => user.pubkey === hexKey) !== -1) return prev
 
         return [
           ...prev,
           {
-            pubkey: viewer,
+            pubkey: hexKey!,
             role: UserRole.viewer
           }
         ]
@@ -599,42 +601,27 @@ const DisplayMeta = ({ meta, nextSigner }: DisplayMetaProps) => {
   useEffect(() => {
     const metadataController = new MetadataController()
 
-    metadataController
+    const hexKeys: string[] = [
-      .findMetadata(meta.submittedBy)
+      npubToHex(meta.submittedBy)!,
-      .then((metadataEvent) => {
+      ...users.map((user) => user.pubkey)
-        const metadataContent =
+    ]
-          metadataController.extractProfileMetadataContent(metadataEvent)
-        if (metadataContent)
-          setMetadata((prev) => ({
-            ...prev,
-            [meta.submittedBy]: metadataContent
-          }))
-      })
-      .catch((err) => {
-        console.error(
-          `error occurred in finding metadata for: ${meta.submittedBy}`,
-          err
-        )
-      })
 
-    users.forEach((user) => {
+    hexKeys.forEach((key) => {
-      if (!(user.pubkey in metadata)) {
+      if (!(key in metadata)) {
         metadataController
-          .findMetadata(user.pubkey)
+          .findMetadata(key)
           .then((metadataEvent) => {
             const metadataContent =
               metadataController.extractProfileMetadataContent(metadataEvent)
+
             if (metadataContent)
               setMetadata((prev) => ({
                 ...prev,
-                [user.pubkey]: metadataContent
+                [key]: metadataContent
               }))
           })
           .catch((err) => {
-            console.error(
+            console.error(`error occurred in finding metadata for: ${key}`, err)
-              `error occurred in finding metadata for: ${user.pubkey}`,
-              err
-            )
           })
       }
     })
@@ -669,15 +656,21 @@ const DisplayMeta = ({ meta, nextSigner }: DisplayMetaProps) => {
         <Typography variant="h6" sx={{ color: textColor }}>
           Submitted By
         </Typography>
-        <UserComponent
+        {(function () {
-          pubkey={meta.submittedBy}
+          const pubkey = npubToHex(meta.submittedBy)
-          name={
+          const profile = metadata[pubkey!]
-            metadata[meta.submittedBy]?.display_name ||
+          return (
-            metadata[meta.submittedBy]?.name ||
+            <UserComponent
-            shorten(hexToNpub(meta.submittedBy))
+              pubkey={pubkey!}
-          }
+              name={
-          image={metadata[meta.submittedBy]?.picture}
+                profile?.display_name ||
-        />
+                profile?.name ||
+                shorten(meta.submittedBy)
+              }
+              image={metadata[meta.submittedBy]?.picture}
+            />
+          )
+        })()}
       </ListItem>
       <ListItem
         sx={{
@@ -714,7 +707,8 @@ const DisplayMeta = ({ meta, nextSigner }: DisplayMetaProps) => {
 
               if (user.role === UserRole.signer) {
                 // check if user has signed the document
-                if (user.pubkey in meta.signedEvents) {
+                const usersNpub = hexToNpub(user.pubkey)
+                if (usersNpub in meta.signedEvents) {
                   signedStatus = 'Signed'
                 }
                 // check if user is the next signer

src/pages/verify/index.tsx

@@ -18,6 +18,7 @@ import { MetadataController } from '../../controllers'
 import { Meta, ProfileMetadata } from '../../types'
 import {
   hexToNpub,
+  npubToHex,
   parseJson,
   readContentOfZipEntry,
   shorten
@@ -48,16 +49,18 @@ export const VerifyPage = () => {
       const users = [meta.submittedBy, ...meta.signers, ...meta.viewers]
 
       users.forEach((user) => {
-        if (!(user in metadata)) {
+        const pubkey = npubToHex(user)!
+
+        if (!(pubkey in metadata)) {
           metadataController
-            .findMetadata(user)
+            .findMetadata(pubkey)
             .then((metadataEvent) => {
               const metadataContent =
                 metadataController.extractProfileMetadataContent(metadataEvent)
               if (metadataContent)
                 setMetadata((prev) => ({
                   ...prev,
-                  [user]: metadataContent
+                  [pubkey]: metadataContent
                 }))
             })
             .catch((err) => {
@@ -117,7 +120,8 @@ export const VerifyPage = () => {
     let isValidSignature = false
 
     if (verifySignature) {
-      const signedEventString = meta ? meta.signedEvents[pubkey] : null
+      const npub = hexToNpub(pubkey)
+      const signedEventString = meta ? meta.signedEvents[npub] : null
       if (signedEventString) {
         try {
           const signedEvent = JSON.parse(signedEventString)
@@ -142,8 +146,15 @@ export const VerifyPage = () => {
         />
 
         {verifySignature && (
-          <Typography component="label">
+          <Typography
-            ({isValidSignature ? 'Valid' : 'Not Valid'} Signature)
+            component="label"
+            sx={{
+              color: isValidSignature
+                ? theme.palette.text.primary
+                : theme.palette.error.main
+            }}
+          >
+            ({isValidSignature ? 'Valid' : 'Invalid'} Signature)
           </Typography>
         )}
       </>
@@ -227,7 +238,7 @@ export const VerifyPage = () => {
                 <Typography variant="h6" sx={{ color: textColor }}>
                   Submitted By
                 </Typography>
-                {displayUser(meta.submittedBy)}
+                {displayUser(npubToHex(meta.submittedBy)!)}
               </ListItem>
 
               <ListItem
@@ -264,7 +275,7 @@ export const VerifyPage = () => {
                           gap: '15px'
                         }}
                       >
-                        {displayUser(signer, true)}
+                        {displayUser(npubToHex(signer)!, true)}
                       </li>
                     ))}
                   </ul>
@@ -285,7 +296,7 @@ export const VerifyPage = () => {
                   <ul className={styles.usersList}>
                     {meta.viewers.map((viewer) => (
                       <li key={viewer} style={{ color: textColor }}>
-                        {displayUser(viewer)}
+                        {displayUser(npubToHex(viewer)!)}
                       </li>
                     ))}
                   </ul>

src/types/core.ts

@@ -9,10 +9,10 @@ export interface User {
 }
 
 export interface Meta {
-  signers: string[]
+  signers: `npub1${string}`[]
-  viewers: string[]
+  viewers: `npub1${string}`[]
   fileHashes: { [key: string]: string }
-  submittedBy: string
+  submittedBy: `npub1${string}`
-  signedEvents: { [key: string]: string }
+  signedEvents: { [key: `npub1${string}`]: string }
   exportSignature?: string
 }

src/utils/nostr.ts

@@ -17,21 +17,21 @@ const validateHex = (hexKey: string) => {
  * @param pubKey in NPUB, HEX format
  * @returns HEX format
  */
-export const pubToHex = async (pubKey: string): Promise<string | null> => {
+export const npubToHex = (pubKey: string): string | null => {
   // If key is NPUB
-  if (pubKey.startsWith('npub')) {
+  if (pubKey.startsWith('npub1')) {
     try {
       return nip19.decode(pubKey).data as string
     } catch (error) {
-      return Promise.resolve(null)
+      return null
     }
   }
 
   // valid hex key
-  if (validateHex(pubKey)) return Promise.resolve(pubKey)
+  if (validateHex(pubKey)) return pubKey
 
   // Not a valid hex key
-  return Promise.resolve(null)
+  return null
 }
 
 /**
@@ -56,9 +56,8 @@ export const nsecToHex = (nsec: string): string | null => {
   return null
 }
 
-export const hexToNpub = (hexPubkey: string | undefined): string => {
+export const hexToNpub = (hexPubkey: string): `npub1${string}` => {
-  if (!hexPubkey) return 'n/a'
+  if (hexPubkey.startsWith('npub1')) return hexPubkey as `npub1${string}`
-  if (hexPubkey.includes('npub')) return hexPubkey
 
   return nip19.npubEncode(hexPubkey)
 }
@@ -141,8 +140,7 @@ export const base64DecodeAuthToken = (authToken: string): SignedEvent => {
 }
 
 /**
- * 
+ * @param pubkey in hex or npub format
- * @param pubkey in hex or npub format 
  * @returns robohash.org url for the avatar
  */
 export const getRoboHashPicture = (pubkey?: string, set: number = 1): string => {