diff --git a/src/pages/create/index.tsx b/src/pages/create/index.tsx
index 24538fb..84ad3bf 100644
--- a/src/pages/create/index.tsx
+++ b/src/pages/create/index.tsx
@@ -22,7 +22,7 @@ import JSZip from 'jszip'
 import { MuiFileInput } from 'mui-file-input'
 import { useEffect, useRef, useState } from 'react'
 import { useSelector } from 'react-redux'
-import { useNavigate } from 'react-router-dom'
+import { useLocation, useNavigate } from 'react-router-dom'
 import { toast } from 'react-toastify'
 import { LoadingSpinner } from '../../components/LoadingSpinner'
 import { UserComponent } from '../../components/username'
@@ -54,6 +54,9 @@ import { Event, kinds } from 'nostr-tools'
 
 export const CreatePage = () => {
   const navigate = useNavigate()
+  const location = useLocation()
+  const { uploadedFile } = location.state || {}
+
   const [isLoading, setIsLoading] = useState(false)
   const [loadingSpinnerDesc, setLoadingSpinnerDesc] = useState('')
 
@@ -72,6 +75,12 @@ export const CreatePage = () => {
 
   const nostrController = NostrController.getInstance()
 
+  useEffect(() => {
+    if (uploadedFile) {
+      setSelectedFiles([uploadedFile])
+    }
+  }, [uploadedFile])
+
   useEffect(() => {
     if (usersPubkey) {
       setUsers((prev) => {
diff --git a/src/pages/home/index.tsx b/src/pages/home/index.tsx
index 9cf4508..181b67d 100644
--- a/src/pages/home/index.tsx
+++ b/src/pages/home/index.tsx
@@ -7,11 +7,61 @@ import {
 } from '@mui/icons-material'
 import { Box, Button, Tooltip, Typography } from '@mui/material'
 import { useNavigate } from 'react-router-dom'
-import { appPrivateRoutes } from '../../routes'
+import { appPrivateRoutes, appPublicRoutes } from '../../routes'
 import styles from './style.module.scss'
+import { useRef } from 'react'
+import JSZip from 'jszip'
+import { toast } from 'react-toastify'
 
 export const HomePage = () => {
   const navigate = useNavigate()
+  const fileInputRef = useRef<HTMLInputElement>(null)
+
+  const handleUploadClick = () => {
+    if (fileInputRef.current) {
+      fileInputRef.current.click()
+    }
+  }
+
+  const handleFileChange = async (
+    event: React.ChangeEvent<HTMLInputElement>
+  ) => {
+    const file = event.target.files?.[0]
+    if (file) {
+      // Check if the file extension is .sigit.zip
+      const fileName = file.name
+      const fileExtension = fileName.slice(-10) // ".sigit.zip" has 10 characters
+      if (fileExtension === '.sigit.zip') {
+        const zip = await JSZip.loadAsync(file).catch((err) => {
+          console.log('err in loading zip file :>> ', err)
+          toast.error(err.message || 'An error occurred in loading zip file.')
+          return null
+        })
+
+        if (!zip) return
+
+        // navigate to sign page if zip contains keys.json
+        if ('keys.json' in zip.files) {
+          return navigate(appPrivateRoutes.sign, {
+            state: { uploadedZip: file }
+          })
+        }
+
+        // navigate to verify page if zip contains meta.json
+        if ('meta.json' in zip.files) {
+          return navigate(appPublicRoutes.verify, {
+            state: { uploadedZip: file }
+          })
+        }
+
+        toast.error('Invalid zip file')
+        return
+      }
+
+      // navigate to create page
+      navigate(appPrivateRoutes.create, { state: { uploadedFile: file } })
+    }
+  }
 
   return (
     <Box className={styles.container}>
@@ -29,10 +79,16 @@ export const HomePage = () => {
             }
           }}
         >
+          <input
+            type="file"
+            ref={fileInputRef}
+            style={{ display: 'none' }}
+            onChange={handleFileChange}
+          />
           <Button
             variant="outlined"
             startIcon={<Upload />}
-            onClick={() => navigate(appPrivateRoutes.sign)}
+            onClick={handleUploadClick}
           >
             Upload
           </Button>
diff --git a/src/pages/sign/index.tsx b/src/pages/sign/index.tsx
index 2a8ca9a..b49d11e 100644
--- a/src/pages/sign/index.tsx
+++ b/src/pages/sign/index.tsx
@@ -40,7 +40,8 @@ enum SignedStatus {
 export const SignPage = () => {
   const navigate = useNavigate()
   const location = useLocation()
-  const { arrayBuffer: decryptedArrayBuffer } = location.state || {}
+  const { arrayBuffer: decryptedArrayBuffer, uploadedZip } =
+    location.state || {}
 
   const [searchParams, setSearchParams] = useSearchParams()
 
@@ -200,11 +201,23 @@ export const SignPage = () => {
       handleDecryptedArrayBuffer(decryptedArrayBuffer).finally(() =>
         setIsLoading(false)
       )
+    } else if (uploadedZip) {
+      decrypt(uploadedZip)
+        .then((arrayBuffer) => {
+          if (arrayBuffer) handleDecryptedArrayBuffer(arrayBuffer)
+        })
+        .catch((err) => {
+          console.error(`error occurred in decryption`, err)
+          toast.error(err.message || `error occurred in decryption`)
+        })
+        .finally(() => {
+          setIsLoading(false)
+        })
     } else {
       setIsLoading(false)
       setDisplayInput(true)
     }
-  }, [searchParams, decryptedArrayBuffer])
+  }, [searchParams, decryptedArrayBuffer, uploadedZip])
 
   const parseKeysJson = async (zip: JSZip) => {
     const keysFileContent = await readContentOfZipEntry(
@@ -768,7 +781,8 @@ export const SignPage = () => {
     if (!arrayBuffer) return
 
     const blob = new Blob([arrayBuffer])
-    saveAs(blob, 'exported.zip')
+    const unixNow = Math.floor(Date.now() / 1000)
+    saveAs(blob, `exported-${unixNow}.sigit.zip`)
 
     setIsLoading(false)
 
diff --git a/src/pages/verify/index.tsx b/src/pages/verify/index.tsx
index a8e0d1f..53aea4a 100644
--- a/src/pages/verify/index.tsx
+++ b/src/pages/verify/index.tsx
@@ -32,14 +32,17 @@ import {
 } from '../../utils'
 import styles from './style.module.scss'
 import { Cancel, CheckCircle } from '@mui/icons-material'
+import { useLocation } from 'react-router-dom'
 
 export const VerifyPage = () => {
   const theme = useTheme()
-
   const textColor = theme.palette.getContrastText(
     theme.palette.background.paper
   )
 
+  const location = useLocation()
+  const { uploadedZip } = location.state || {}
+
   const [isLoading, setIsLoading] = useState(false)
   const [loadingSpinnerDesc, setLoadingSpinnerDesc] = useState('')
 
@@ -62,6 +65,12 @@ export const VerifyPage = () => {
     {}
   )
 
+  useEffect(() => {
+    if (uploadedZip) {
+      setSelectedFile(uploadedZip)
+    }
+  }, [uploadedZip])
+
   useEffect(() => {
     if (zip) {
       const generateCurrentFileHashes = async () => {
@@ -364,7 +373,7 @@ export const VerifyPage = () => {
               onChange={(value) => setSelectedFile(value)}
               InputProps={{
                 inputProps: {
-                  accept: '.zip'
+                  accept: '.sigit.zip'
                 }
               }}
             />