diff --git a/lib/thirty-two/LICENSE.txt b/lib/base32/LICENSE.txt
similarity index 95%
rename from lib/thirty-two/LICENSE.txt
rename to lib/base32/LICENSE.txt
index 364e7fa..1e3aadd 100644
--- a/lib/thirty-two/LICENSE.txt
+++ b/lib/base32/LICENSE.txt
@@ -1,4 +1,4 @@
-Copyright (c) 2011, Chris Umbel
+Copyright (c) 2023, Chris Umbel, Lisoveliy
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
diff --git a/lib/base32/README.md b/lib/base32/README.md
new file mode 100644
index 0000000..1242794
--- /dev/null
+++ b/lib/base32/README.md
@@ -0,0 +1,10 @@
+# base32
+
+Implementation of RFC 3548 Base32 encoding/decoding for zepp quickjs.
+
+## Usage
+    import {encode, decode} from 'base32/index.js'
+    base32.encode('node');
+    // output: NZXWIZI=
+    base32.decode('NZXWIZI=');
+    //output: node
diff --git a/lib/thirty-two/index.js b/lib/base32/index.js
similarity index 91%
rename from lib/thirty-two/index.js
rename to lib/base32/index.js
index e0eebe2..fb23939 100644
--- a/lib/thirty-two/index.js
+++ b/lib/base32/index.js
@@ -1,5 +1,5 @@
 /*                                                                              
-Copyright (c) 2011, Chris Umbel                                                 
+Copyright (c) 2023, Chris Umbel, Lisoveliy                                              
                                                                                 
 Permission is hereby granted, free of charge, to any person obtaining a copy    
 of this software and associated documentation files (the "Software"), to deal   
@@ -20,4 +20,4 @@ OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 THE SOFTWARE.                                                                   
 */
 
-export {encode, decode} from './lib/thirty-two/thirty-two.js'
\ No newline at end of file
+export { encode, decode } from './lib/base32/base32.js'
\ No newline at end of file
diff --git a/lib/thirty-two/lib/thirty-two/thirty-two.js b/lib/base32/lib/base32/base32.js
similarity index 83%
rename from lib/thirty-two/lib/thirty-two/thirty-two.js
rename to lib/base32/lib/base32/base32.js
index 2887dfa..514f7c6 100644
--- a/lib/thirty-two/lib/thirty-two/thirty-two.js
+++ b/lib/base32/lib/base32/base32.js
@@ -1,5 +1,5 @@
 /*
-Copyright (c) 2011, Chris Umbel
+Copyright (c) 2023, Chris Umbel, Lisoveliy
 
 Permission is hereby granted, free of charge, to any person obtaining a copy
 of this software and associated documentation files (the "Software"), to deal
@@ -37,12 +37,12 @@ var byteTable = [
 
 function quintetCount(buff) {
     var quintets = Math.floor(buff.length / 5);
-    return buff.length % 5 === 0 ? quintets: quintets + 1;
+    return buff.length % 5 === 0 ? quintets : quintets + 1;
 }
 
 export function encode(plain) {
-    if(!Buffer.isBuffer(plain)){
-    	plain = new Buffer(plain);
+    if (!Buffer.isBuffer(plain)) {
+        plain = new Buffer(plain);
     }
     var i = 0;
     var j = 0;
@@ -52,10 +52,10 @@ export function encode(plain) {
 
     /* byte by byte isn't as pretty as quintet by quintet but tests a bit
         faster. will have to revisit. */
-    while(i < plain.length) {
+    while (i < plain.length) {
         var current = plain[i];
 
-        if(shiftIndex > 3) {
+        if (shiftIndex > 3) {
             digit = current & (0xff >> shiftIndex);
             shiftIndex = (shiftIndex + 5) % 8;
             digit = (digit << shiftIndex) | ((i + 1 < plain.length) ?
@@ -64,14 +64,14 @@ export function encode(plain) {
         } else {
             digit = (current >> (8 - (shiftIndex + 5))) & 0x1f;
             shiftIndex = (shiftIndex + 5) % 8;
-            if(shiftIndex === 0) i++;
+            if (shiftIndex === 0) i++;
         }
 
         encoded[j] = charTable.charCodeAt(digit);
         j++;
     }
 
-    for(i = j; i < encoded.length; i++) {
+    for (i = j; i < encoded.length; i++) {
         encoded[i] = 0x3d; //'='.charCodeAt(0)
     }
 
@@ -83,27 +83,27 @@ export function decode(encoded) {
     var plainDigit = 0;
     var plainChar;
     var plainPos = 0;
-    if(!Buffer.isBuffer(encoded)){
-    	encoded = new Buffer(encoded);
+    if (!Buffer.isBuffer(encoded)) {
+        encoded = new Buffer(encoded);
     }
     var decoded = new Buffer(Math.ceil(encoded.length * 5 / 8));
 
     /* byte by byte isn't as pretty as octet by octet but tests a bit
         faster. will have to revisit. */
-    for(var i = 0; i < encoded.length; i++) {
-    	if(encoded[i] === 0x3d){ //'='
-    		break;
-    	}
+    for (var i = 0; i < encoded.length; i++) {
+        if (encoded[i] === 0x3d) { //'='
+            break;
+        }
 
         var encodedByte = encoded[i] - 0x30;
 
-        if(encodedByte < byteTable.length) {
+        if (encodedByte < byteTable.length) {
             plainDigit = byteTable[encodedByte];
 
-            if(shiftIndex <= 3) {
+            if (shiftIndex <= 3) {
                 shiftIndex = (shiftIndex + 5) % 8;
 
-                if(shiftIndex === 0) {
+                if (shiftIndex === 0) {
                     plainChar |= plainDigit;
                     decoded[plainPos] = plainChar;
                     plainPos++;
@@ -120,7 +120,7 @@ export function decode(encoded) {
                 plainChar = 0xff & (plainDigit << (8 - shiftIndex));
             }
         } else {
-        	throw new Error('Invalid input - it is not base32 encoded string');
+            throw new Error('Invalid input - it is not base32 encoded string');
         }
     }
 
diff --git a/lib/thirty-two/package.json b/lib/base32/package.json
similarity index 67%
rename from lib/thirty-two/package.json
rename to lib/base32/package.json
index fc341c7..9e3ede1 100644
--- a/lib/thirty-two/package.json
+++ b/lib/base32/package.json
@@ -1,13 +1,10 @@
 {
-  "name": "thirty-two",
+  "name": "base32",
   "description": "Implementation RFC 3548 Base32 encoding/decoding for node.",
-  "version": "1.0.2",
-  "engines": {
-    "node": ">=0.2.6"
-  },
+  "version": "1.0.2-zepp",
   "author": "Chris Umbel <chris@chrisumbel.com>",
   "keywords": ["base32", "encoding"],
-  "main": "./lib/thirty-two/index.js",
+  "main": "index.js",
   "repository": {
     "type": "git",
     "url": "git://github.com/chrisumbel/thirty-two.git"
diff --git a/lib/thirty-two/.npmignore b/lib/thirty-two/.npmignore
deleted file mode 100644
index 3ee8de4..0000000
--- a/lib/thirty-two/.npmignore
+++ /dev/null
@@ -1,4 +0,0 @@
-*.kpf
-*~
-\#*
-node_modules
diff --git a/lib/thirty-two/Makefile b/lib/thirty-two/Makefile
deleted file mode 100644
index 6011230..0000000
--- a/lib/thirty-two/Makefile
+++ /dev/null
@@ -1,24 +0,0 @@
-# Copyright (c) 2011, Chris Umbel
-
-# Permission is hereby granted, free of charge, to any person obtaining a copy
-# of this software and associated documentation files (the "Software"), to deal
-# in the Software without restriction, including without limitation the rights
-# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
-# copies of the Software, and to permit persons to whom the Software is
-# furnished to do so, subject to the following conditions:
-
-# The above copyright notice and this permission notice shall be included in
-# all copies or substantial portions of the Software.
-
-# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
-# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
-# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
-# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
-# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
-# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN 
-# THE SOFTWARE.
-
-SHELL := /bin/bash
-
-test:
-	jasmine-node spec/
diff --git a/lib/thirty-two/README.md b/lib/thirty-two/README.md
deleted file mode 100644
index fd81e38..0000000
--- a/lib/thirty-two/README.md
+++ /dev/null
@@ -1,15 +0,0 @@
-# thirty-two
-
-Implementation of RFC 3548 Base32 encoding/decoding for node.
-
-## Installation
-    
-    npm install thirty-two
-
-## Usage
-    
-    var base32 = require('thirty-two');
-    base32.encode('node');
-    // output: NZXWIZI=
-    base32.decode('NZXWIZI=');
-    //output: node
diff --git a/lib/thirty-two/spec/thirty-two_spec.js b/lib/thirty-two/spec/thirty-two_spec.js
deleted file mode 100644
index a0e0c0a..0000000
--- a/lib/thirty-two/spec/thirty-two_spec.js
+++ /dev/null
@@ -1,63 +0,0 @@
-/*                                                                             
-Copyright (c) 2011, Chris Umbel                                                
-                                                                                
-Permission is hereby granted, free of charge, to any person obtaining a copy    
-of this software and associated documentation files (the "Software"), to deal   
-in the Software without restriction, including without limitation the rights    
-to use, copy, modify, merge, publish, distribute, sublicense, and/or sell       
-copies of the Software, and to permit persons to whom the Software is           
-furnished to do so, subject to the following conditions:                        
-                                                                                
-The above copyright notice and this permission notice shall be included in      
-all copies or substantial portions of the Software.                             
-                                                                                
-THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR      
-IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,        
-FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE     
-AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER          
-LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,   
-OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN       
-THE SOFTWARE.                                                                   
-*/
-if(!expect){
-	function expect(a){
-		return {
-			toBe: function(b){
-				require('assert').strictEqual(a, b);
-			}
-		};
-	}
-}
-var base32 = require('../lib/thirty-two/');
-
-describe('thirty-two', function() {
-    it('should encode', function() {
-        expect(base32.encode('a').toString()).toBe('ME======');
-        expect(base32.encode('be').toString()).toBe('MJSQ====');
-        expect(base32.encode('bee').toString()).toBe('MJSWK===');
-        expect(base32.encode('beer').toString()).toBe('MJSWK4Q=');
-        expect(base32.encode('beers').toString()).toBe('MJSWK4TT');
-        expect(base32.encode('beers 1').toString()).toBe('MJSWK4TTEAYQ====');
-        expect(base32.encode('shockingly dismissed').toString()).toBe('ONUG6Y3LNFXGO3DZEBSGS43NNFZXGZLE');        
-    });
-    
-    
-    it('should decode', function() {
-        expect(base32.decode('ME======').toString()).toBe('a');
-        expect(base32.decode('MJSQ====').toString()).toBe('be');
-        expect(base32.decode('ONXW4===').toString()).toBe('son');
-        expect(base32.decode('MJSWK===').toString()).toBe('bee');
-        expect(base32.decode('MJSWK4Q=').toString()).toBe('beer');
-        expect(base32.decode('MJSWK4TT').toString()).toBe('beers');
-        expect(base32.decode('mjswK4TT').toString()).toBe('beers');
-        expect(base32.decode('MJSWK4TTN5XA====').toString()).toBe('beerson');
-        expect(base32.decode('MJSWK4TTEAYQ====').toString()).toBe('beers 1');
-        expect(base32.decode('ONUG6Y3LNFXGO3DZEBSGS43NNFZXGZLE').toString()).toBe('shockingly dismissed');
-    });
-    
-    it('should be binary safe', function() {
-        expect(base32.decode(base32.encode(new Buffer([0x00, 0xff, 0x88]))).toString('hex')).toBe('00ff88');
-    	expect(base32.encode(new Buffer("f61e1f998d69151de8334dbe753ab17ae831c13849a6aecd95d0a4e5dc25", 'hex')).toString()).toBe('6YPB7GMNNEKR32BTJW7HKOVRPLUDDQJYJGTK5TMV2CSOLXBF');
-    	expect(base32.decode('6YPB7GMNNEKR32BTJW7HKOVRPLUDDQJYJGTK5TMV2CSOLXBF').toString('hex')).toBe('f61e1f998d69151de8334dbe753ab17ae831c13849a6aecd95d0a4e5dc25');
-    });
-});
diff --git a/lib/totp.js/.travis.yml b/lib/totp.js/.travis.yml
deleted file mode 100644
index efb0983..0000000
--- a/lib/totp.js/.travis.yml
+++ /dev/null
@@ -1,3 +0,0 @@
-language: node_js
-node_js:
-  - "8"
diff --git a/lib/totp.js/README.md b/lib/totp.js/README.md
deleted file mode 100644
index 4cfac1e..0000000
--- a/lib/totp.js/README.md
+++ /dev/null
@@ -1,5 +0,0 @@
-# totp.js
-Two-factor authentication implementation in pure javascript. One-time password generator (HOTP/TOTP) with support for Google Authenticator.
-
-[![Build Status](https://travis-ci.org/wuyanxin/totp.js.svg?branch=master)](https://travis-ci.org/wuyanxin/totp.js)
-
diff --git a/lib/totp.js/index.js b/lib/totp.js/index.js
index 17fed34..7dcf2e0 100644
--- a/lib/totp.js/index.js
+++ b/lib/totp.js/index.js
@@ -1,9 +1,2 @@
-/*
- * @Author: wuyanxin
- * @Date: 2018-03-21 23:12:14
- * @Last Modified by:   wuyanxin
- * @Last Modified time: 2018-03-21 23:12:14
- */
-
-export {HOTP} from './lib/hotp.js'
-export {TOTP} from './lib/totp.js'
+export { HOTP } from './lib/hotp.js'
+export { TOTP } from './lib/totp.js'
diff --git a/lib/totp.js/lib/hotp.js b/lib/totp.js/lib/hotp.js
index 3c1c9b9..3614db9 100644
--- a/lib/totp.js/lib/hotp.js
+++ b/lib/totp.js/lib/hotp.js
@@ -1,11 +1,4 @@
-/*
- * @Author: wuyanxin
- * @Date: 2018-03-21 22:25:37
- * @Last Modified by: wuyanxin
- * @Last Modified time: 2018-03-21 22:29:43
- */
-
-import {encode, decode} from '../../thirty-two/index.js'
+import { encode, decode } from '../../base32/index.js'
 import jsSHA from 'jssha'
 
 export class HOTP {
@@ -54,11 +47,11 @@ export class HOTP {
   }
 
   _truncat(hmac_result) {
-    const offset   =  hmac_result[19].charCodeAt() & 0xf;
-    const bin_code = (hmac_result[offset].charCodeAt()  & 0x7f) << 24
-       | (hmac_result[offset+1].charCodeAt() & 0xff) << 16
-       | (hmac_result[offset+2].charCodeAt() & 0xff) <<  8
-       | (hmac_result[offset+3].charCodeAt() & 0xff);
+    const offset = hmac_result[19].charCodeAt() & 0xf;
+    const bin_code = (hmac_result[offset].charCodeAt() & 0x7f) << 24
+      | (hmac_result[offset + 1].charCodeAt() & 0xff) << 16
+      | (hmac_result[offset + 2].charCodeAt() & 0xff) << 8
+      | (hmac_result[offset + 3].charCodeAt() & 0xff);
     let otp = (bin_code % 10 ** this.digit).toString();
     while (otp.length < this.digit) {
       otp = '0' + otp;
diff --git a/lib/totp.js/lib/totp.js b/lib/totp.js/lib/totp.js
index ebae234..172414e 100644
--- a/lib/totp.js/lib/totp.js
+++ b/lib/totp.js/lib/totp.js
@@ -1,14 +1,7 @@
-/*
- * @Author: wuyanxin
- * @Date: 2018-03-21 22:25:42
- * @Last Modified by: wuyanxin
- * @Last Modified time: 2018-03-21 22:42:28
- */
-
-import {HOTP} from "./hotp.js";
+import { HOTP } from "./hotp.js";
 
 export class TOTP extends HOTP {
-  constructor(key){
+  constructor(key) {
     super(key)
   }
 
@@ -20,5 +13,4 @@ export class TOTP extends HOTP {
   verify(otp, timeStep = 30, t0 = 0) {
     return otp === this.genOTP(timeStep, t0);
   }
-
 }
\ No newline at end of file
diff --git a/lib/totp.js/package.json b/lib/totp.js/package.json
index 798a589..a915c48 100644
--- a/lib/totp.js/package.json
+++ b/lib/totp.js/package.json
@@ -1,6 +1,6 @@
 {
   "name": "totp.js",
-  "version": "0.0.1",
+  "version": "1.0.1-zepp",
   "description": "Two-factor authentication implementation in pure javascript. One-time password generator (HOTP/TOTP) with support for Google Authenticator. ",
   "main": "index.js",
   "scripts": {
@@ -24,8 +24,7 @@
   },
   "homepage": "https://github.com/wuyanxin/totp.js#readme",
   "dependencies": {
-    "jssha": "^2.3.1",
-    "thirty-two": "^1.0.2"
+    "jssha": "^2.3.1"
   },
   "devDependencies": {
     "mocha": "^5.0.4"