diff --git a/.github/workflows/fns.sh b/.github/workflows/fns.sh
new file mode 100644
index 0000000..4eeffb7
--- /dev/null
+++ b/.github/workflows/fns.sh
@@ -0,0 +1,74 @@
+#!/bin/bash
+
+vercomp () {
+  if [[ $1 == $2 ]]; then
+    export vercomp_last_result=0
+    return $vercomp_last_result
+  fi
+  local IFS=.
+  local i ver1=($1) ver2=($2)
+  # fill empty fields in ver1 with zeros
+  for ((i=${#ver1[@]}; i<${#ver2[@]}; i++))
+  do
+      ver1[i]=0
+  done
+  for ((i=0; i<${#ver1[@]}; i++))
+  do
+      if [[ -z ${ver2[i]} ]]; then
+          # fill empty fields in ver2 with zeros
+          ver2[i]=0
+      fi
+      if ((10#${ver1[i]} > 10#${ver2[i]})); then
+        export vercomp_last_result=1
+        return $vercomp_last_result
+      fi
+      if ((10#${ver1[i]} < 10#${ver2[i]})); then
+        export vercomp_last_result=2
+        return $vercomp_last_result
+      fi
+  done
+    export vercomp_last_result=0
+  return $vercomp_last_result
+}
+
+install_fibjs() {
+    local version=$1
+    if [[ -z "$version" ]]; then
+        echo "[install_fibjs] version is required"
+        exit 1
+    fi
+    local os=$2
+    if [[ -z "$os" ]]; then
+        echo "[install_fibjs] os is required"
+        exit 1
+    fi
+    local arch=$3
+    if [[ -z "$arch" ]]; then
+        echo "[install_fibjs] arch is required"
+        exit 1
+    fi
+
+    local url_base="https://github.com/fibjs/fibjs/releases/download/v${version}/fibjs-v${version}-${os}-${arch}"
+
+    # in fact, there's also non-archived linux fibjs
+    if [[ "$RUNNER_OS" == "Linux" ]]; then
+        if [ "$lower_than_0_37_0" == "true" ]; then
+            local remote_url="${url_base}.xz"
+            curl -SL "$remote_url" -o ./node_modules/.bin/fibjs.xz;
+            xz -d ./node_modules/.bin/fibjs.xz;
+        else
+            local remote_url="${url_base}.tar.gz"
+            curl -SL "$remote_url" -o ./node_modules/.bin/fibjs.tar.gz;
+            tar -xzf ./node_modules/.bin/fibjs.tar.gz -C ./node_modules/.bin;
+        fi
+        chmod a+x ./node_modules/.bin/fibjs;
+    elif [[ "$RUNNER_OS" == "macOS" ]]; then
+        local remote_url="${url_base}"
+        curl -SL "$remote_url" -o ./node_modules/.bin/fibjs;
+        chmod a+x ./node_modules/.bin/fibjs;
+    else
+        local remote_url="${url_base}.exe"
+        curl -SL "$remote_url" -o ./node_modules/.bin/fibjs.exe;
+    fi
+    echo "[install_fibjs] Downloading fibjs from ${remote_url}"
+}
diff --git a/.github/workflows/run-ci.yml b/.github/workflows/run-ci.yml
index f38836e..c75b6af 100644
--- a/.github/workflows/run-ci.yml
+++ b/.github/workflows/run-ci.yml
@@ -24,14 +24,68 @@ jobs:
     continue-on-error: true
     strategy:
       matrix:
-        os: [ubuntu-18.04, windows-2019, macos-10.15]
-        version: [0.33.0, 0.34.0, 0.35.0]
-        arch: [amd64, i386]
-        exclude:
-          - os: windows-2019
-            arch: i386
-          - os: macos-10.15
-            arch: i386
+        include:
+        - os: windows-2019
+          arch: x64
+          fibjs: 0.34.0
+        - os: windows-2019
+          arch: x64
+          fibjs: 0.35.0
+        - os: windows-2019
+          arch: x64
+          fibjs: 0.36.0
+        - os: windows-2019
+          arch: x64
+          fibjs: 0.37.0
+        - os: windows-2019
+          arch: x86
+          fibjs: 0.34.0
+        - os: windows-2019
+          arch: x86
+          fibjs: 0.35.0
+        - os: windows-2019
+          arch: x86
+          fibjs: 0.36.0
+        - os: windows-2019
+          arch: x86
+          fibjs: 0.37.0
+        - os: ubuntu-20.04
+          arch: x64
+          fibjs: 0.34.0
+        - os: ubuntu-20.04
+          arch: x64
+          fibjs: 0.35.0
+        - os: ubuntu-20.04
+          arch: x64
+          fibjs: 0.36.0
+        - os: ubuntu-20.04
+          arch: x64
+          fibjs: 0.37.0
+        - os: ubuntu-20.04
+          arch: x86
+          fibjs: 0.34.0
+        - os: ubuntu-20.04
+          arch: x86
+          fibjs: 0.35.0
+        - os: ubuntu-20.04
+          arch: x86
+          fibjs: 0.36.0
+        - os: ubuntu-20.04
+          arch: x86
+          fibjs: 0.37.0
+        - os: macos-11
+          arch: x64
+          fibjs: 0.34.0
+        - os: macos-11
+          arch: x64
+          fibjs: 0.35.0
+        - os: macos-11
+          arch: x64
+          fibjs: 0.36.0
+        - os: macos-11
+          arch: x64
+          fibjs: 0.37.0
+        
 
     steps:
       - name: Check out Git repository
@@ -41,7 +95,7 @@ jobs:
 
       - uses: actions/setup-node@v2
         with:
-          node-version: '14'
+          node-version: '16'
 
       - name: Set Env Variables
         id: set-env-vars
@@ -51,26 +105,20 @@ jobs:
         env:
           ARCH: ${{ matrix.arch }}
           OS: ${{ matrix.os }}
+          FIBJS_VERSION: ${{ matrix.fibjs }}
 
       - name: Install FIBJS
         shell: bash
         run: |
           mkdir -p ./node_modules/.bin;
           rm -rf ./node_modules/.bin/fibjs;
-          if [[ "$RUNNER_OS" == "Linux" ]]; then
-            curl -SL "https://github.com/fibjs/fibjs/releases/download/v${FIBJS_VERSION}/fibjs-v${FIBJS_VERSION}-${FIBJS_OS}-${FIBJS_ARCH}.xz" -o ./node_modules/.bin/fibjs.xz;
-            xz -d ./node_modules/.bin/fibjs.xz;
-            chmod a+x ./node_modules/.bin/fibjs;
-          elif [[ "$RUNNER_OS" == "macOS" ]]; then
-            curl -SL "https://github.com/fibjs/fibjs/releases/download/v${FIBJS_VERSION}/fibjs-v${FIBJS_VERSION}-${FIBJS_OS}-${FIBJS_ARCH}" -o ./node_modules/.bin/fibjs;
-            chmod a+x ./node_modules/.bin/fibjs;
-          else
-            curl -SL "https://github.com/fibjs/fibjs/releases/download/v${FIBJS_VERSION}/fibjs-v${FIBJS_VERSION}-${FIBJS_OS}-${FIBJS_ARCH}.exe" -o ./node_modules/.bin/fibjs.exe;
-          fi
+          . ./.github/workflows/fns.sh --source-only
+          install_fibjs $FIBJS_VERSION $FIBJS_OS $FIBJS_ARCH;
         env:
           FIBJS_OS: ${{ steps.set-env-vars.outputs.FIBJS_OS }}
           FIBJS_ARCH: ${{ steps.set-env-vars.outputs.FIBJS_ARCH }}
-          FIBJS_VERSION: ${{ matrix.version }}
+          lower_than_0_37_0: ${{ steps.set-env-vars.outputs.lower_than_0_37_0 }}
+          FIBJS_VERSION: ${{ matrix.fibjs }}
 
       - name: Run CI
         shell: bash
diff --git a/.github/workflows/set-env-vars.sh b/.github/workflows/set-env-vars.sh
index 9798ca8..64bb0c3 100644
--- a/.github/workflows/set-env-vars.sh
+++ b/.github/workflows/set-env-vars.sh
@@ -1,3 +1,5 @@
+. ./.github/workflows/fns.sh --source-only
+
 export GIT_BRANCH=${GITHUB_REF#refs/heads/}
 echo "::set-output name=GIT_BRANCH::$GIT_BRANCH"
 export GIT_TAG=$(git tag | grep $(git describe --tags HEAD))
@@ -25,9 +27,23 @@ if [ -z "$IS_GIT_TAG_MATCH_SEMVER" ]; then
 fi
 echo "::set-output name=RELEASE_TAG::$RELEASE_TAG";
 
+vercomp "${FIBJS_VERSION}" "0.37.0"
+if [[ "$vercomp_last_result" -eq "2" ]]; then
+    export lower_than_0_37_0="true"
+else
+    export lower_than_0_37_0="false"
+fi
+
+echo "::set-output name=lower_than_0_37_0::$lower_than_0_37_0";
+
 case "${RUNNER_OS}" in
     Windows)
-        export FIBJS_OS=windows
+        # lower than 0.37.0
+        if [[ "$lower_than_0_37_0" == "true" ]]; then
+            export FIBJS_OS=windows
+        else
+            export FIBJS_OS=win32
+        fi
         ;;
     macOS)
         export FIBJS_OS=darwin
@@ -43,10 +59,14 @@ esac
 echo "::set-output name=FIBJS_OS::$FIBJS_OS";
 
 case "${ARCH}" in
-    i386)
-        export FIBJS_ARCH=x86
+    i386|ia32|x86)
+        if [[ "$lower_than_0_37_0" == "true" ]]; then
+            export FIBJS_ARCH=x86
+        else
+            export FIBJS_ARCH=ia32
+        fi
         ;;
-    amd64)
+    amd64|x64)
         export FIBJS_ARCH=x64
         ;;
     *)
diff --git a/@types/basic.d.ts b/@types/basic.d.ts
index 705a3fb..4d55f1f 100644
--- a/@types/basic.d.ts
+++ b/@types/basic.d.ts
@@ -41,7 +41,14 @@ declare namespace FibSessionNS {
         cache_size?: number;
         cache_timeout?: number;
     }
-    interface Options extends StoreOptions, FibKvOptions {
+    type FibJwtOptions = {
+      /**
+       * @description if disable_auto_hex_key is set, we would make sure all keys are hex string/Buffer
+       */
+      disable_auto_hex_key?: boolean
+    }
+    
+    interface Options extends StoreOptions, FibKvOptions, FibJwtOptions {
         expires?: number;
     }
     interface Store {
diff --git a/appveyor.yml b/appveyor.yml
deleted file mode 100644
index b6b839b..0000000
--- a/appveyor.yml
+++ /dev/null
@@ -1,18 +0,0 @@
-environment:
-  nodejs_version: '6'
-  matrix:
-    - VERSION: 0.33.0
-    - VERSION: 0.34.0
-    - VERSION: 0.35.0
-
-install:
-  - ps: Install-Product node $env:nodejs_version
-  - npm i
-  - If Not Exist "node_modules\.bin" (mkdir node_modules\.bin)
-  - curl -fsSL -o node_modules\.bin\fibjs.cab "https://github.com/fibjs/fibjs/releases/download/v%VERSION%/fibjs-v%VERSION%-windows-x64.cab"
-  - expand node_modules\.bin\fibjs.cab node_modules\.bin\fibjs.exe
-
-test_script:
-  - npm run ci
-
-build: off
diff --git a/package.json b/package.json
index dab7993..5de4385 100644
--- a/package.json
+++ b/package.json
@@ -26,22 +26,24 @@
     "ci-sqlite": "npm run build && npm run test"
   },
   "ci": {
-    "type": "actions, appveyor",
+    "type": "actions",
     "version": [
-      "0.33.0",
       "0.34.0",
-      "0.35.0"
+      "0.35.0",
+      "0.36.0",
+      "0.37.0"
     ]
   },
   "dependencies": {
-    "fib-jws": "^0.1.1",
+    "fib-jws": "^0.4.1",
     "fib-kv": "^1.3.1"
   },
   "devDependencies": {
-    "@fibjs/ci": "^2.6.0",
+    "@fibjs/ci": "^2.7.1",
+    "@fibjs/detect-port": "^1.0.2",
     "@fibjs/types": "^0.35.0",
     "cross-env": "^5.2.0",
     "fib-pool": "^1.6.0",
-    "fib-typify": "^0.11.4"
+    "fib-typify": "^0.11.6"
   }
 }
diff --git a/src/index.ts b/src/index.ts
index 5d77814..7a54eed 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -29,9 +29,11 @@ const Session = function (conn: FibKV.FibKVInstance | Class_DbConnection | FibPo
     // JWT(JSON Web Token)
     const jwt_algo = utils.jwt_algo(opts);
     const jwt_key = utils.jwt_key(opts);
+    const fib_jwt_opts = { disable_auto_hex_key: opts.disable_auto_hex_key };
+
     if (jwt_algo && jwt_key) {
-        this.getToken = jwt.getToken(jwt_algo);
-        this.setTokenCookie = jwt.setTokenCookie(jwt_algo, utils.sid(opts));
+        this.getToken = jwt.getToken(jwt_algo, fib_jwt_opts);
+        this.setTokenCookie = jwt.setTokenCookie(jwt_algo, utils.sid(opts), fib_jwt_opts);
     }
 
     this.cookie_filter = (r: FibSessionNS.HttpRequest) => {
@@ -39,7 +41,7 @@ const Session = function (conn: FibKV.FibKVInstance | Class_DbConnection | FibPo
         r.sessionid = sessionid;
 
         if (jwt_algo && jwt_key) { //JWT
-            jwt.filter(r, jwt_algo, jwt_key, utils.sid(opts), proxy);
+            jwt.filter(r, jwt_algo, jwt_key, utils.sid(opts), proxy, fib_jwt_opts);
         } else {
             let obj = {};
             if (!sessionid || util.isEmpty(obj = store.get(sessionid))) {
@@ -63,7 +65,7 @@ const Session = function (conn: FibKV.FibKVInstance | Class_DbConnection | FibPo
         r.sessionid = sessionid || undefined;
 
         if (jwt_algo && jwt_key) {
-            jwt.filter(r, jwt_algo, jwt_key, utils.sid(opts), proxy);
+            jwt.filter(r, jwt_algo, jwt_key, utils.sid(opts), proxy, fib_jwt_opts);
         } else {
             let obj = {};
             if (!sessionid || !(obj = store.get(sessionid))) {
diff --git a/src/jwt.ts b/src/jwt.ts
index 46e9a06..9d0faa5 100644
--- a/src/jwt.ts
+++ b/src/jwt.ts
@@ -1,7 +1,13 @@
 const jws = require('fib-jws');
 
-export function getToken (jwt_algo: string) {
-  return (obj: FibSessionNS.Object, key: string) => {
+function inputIsBuffer (bufOrString: string | Class_Buffer): bufOrString is Class_Buffer {
+  return Buffer.isBuffer(bufOrString);
+}
+
+export function getToken (jwt_algo: string, opts?: FibSessionNS.FibJwtOptions) {
+  return (obj: FibSessionNS.Object, key: string | Class_Buffer) => {
+    if (!opts?.disable_auto_hex_key && !inputIsBuffer(key))
+        key = new Buffer(key, 'hex')
     /**
      * jws.sign
      * header={ alg: 'HS256' } 
@@ -12,9 +18,11 @@ export function getToken (jwt_algo: string) {
   }
 }
 
-export function setTokenCookie (jwt_algo: string, cookie_name: string) {
-  return (r: FibSessionNS.HttpRequest, obj: FibSessionNS.Object, key: string) => {
+export function setTokenCookie (jwt_algo: string, cookie_name: string, opts?: FibSessionNS.FibJwtOptions) {
+  return (r: FibSessionNS.HttpRequest, obj: FibSessionNS.Object, key: string | Class_Buffer) => {
     r.session = obj;
+    if (!opts?.disable_auto_hex_key && !inputIsBuffer(key))
+        key = new Buffer(key, 'hex')
     r.sessionid = jws.sign({alg: jwt_algo}, obj, key);
 
     r.response.addCookie({
@@ -26,7 +34,10 @@ export function setTokenCookie (jwt_algo: string, cookie_name: string) {
   };
 }
 
-export function getPayload (text: string, key: string, algo: string) {
+export function getPayload (text: string, key: string | Class_Buffer, algo: string, opts?: FibSessionNS.FibJwtOptions) {
+  if (!opts?.disable_auto_hex_key && !inputIsBuffer(key))
+    key = new Buffer(key, 'hex')
+
   if (jws.verify(text, key, algo)) {
     var dc = jws.decode(text);
     if (dc && dc.payload) {
@@ -39,10 +50,17 @@ export function getPayload (text: string, key: string, algo: string) {
   }
 }
 
-export function filter (r: FibSessionNS.HttpRequest, jwt_algo: string, jwt_key: string, cookie_name: string, proxy: FibSessionNS.SessionProxyGenerator) {
+export function filter (
+  r: FibSessionNS.HttpRequest,
+  jwt_algo: string,
+  jwt_key: string,
+  cookie_name: string,
+  proxy: FibSessionNS.SessionProxyGenerator,
+  opts?: FibSessionNS.FibJwtOptions
+) {
   let obj;
   if (r.sessionid) {
-    obj = getPayload(r.sessionid, jwt_key, jwt_algo);
+    obj = getPayload(r.sessionid, jwt_key, jwt_algo, opts);
   }
   
   r.session = proxy(null, obj, r.sessionid, true, true);
diff --git a/test/index.js b/test/index.js
index 80e2294..a07e5a3 100644
--- a/test/index.js
+++ b/test/index.js
@@ -15,6 +15,8 @@ const pool = require('fib-pool');
 const util = require('util');
 const coroutine = require('coroutine');
 
+const detect_port = require('@fibjs/detect-port');
+
 const { startServer, stopServer } = require('./spec_helper');
 
 // the assertions before `wait()` might fail if the leading operations take too long to finish
@@ -25,7 +27,7 @@ let wait = function (n = delay) {
 let url = {
     protocol: 'http',
     domain: '127.0.0.1',
-    port: 8080,
+    port: detect_port(),
     get ['host']() {
         return this.protocol + '://' + this.domain + ':' + this.port
     },
@@ -57,7 +59,7 @@ function resDataToObj (resData) {
 
 function session_test(description, opts, test_opts, _before, _after) {
     describe(`${description} - ${querystring.stringify(test_opts, null)}`, () => {
-        var { use_existed_kv = false } = test_opts;
+        var { use_existed_kv = false, disable_auto_hex_key } = test_opts;
         
         before(() => {
             kv_db = new kv(_before(), opts);
@@ -66,9 +68,9 @@ function session_test(description, opts, test_opts, _before, _after) {
 
         function setup_session(_opts) {
             if (use_existed_kv)
-                session = new Session(kv_db, _opts);
+                session = new Session(kv_db, {..._opts, disable_auto_hex_key });
             else
-                session = new Session(conn, _opts);
+                session = new Session(conn, {..._opts, disable_auto_hex_key });
 
             session.setup();
         }
@@ -82,13 +84,15 @@ function session_test(description, opts, test_opts, _before, _after) {
             after(() => stopServer(srv));
 
             it('server', () => {
-                ++url.port;
+                url.port = detect_port();
 
                 srv = new http.Server(url.port, [
                     session.cookie_filter,
                     {
                         '^/user$': (r) => r.session && (r.session.username = r.query.username),
-                        '^/get$': (r) => r.response.write(r.session.username),
+                        '^/get$': (r) => {
+                            r.response.write(r.session.username || '')
+                        },
                         '^/del$': (r) => delete r.session.username,
                         '^/remove$': (r) => session.remove(r.sessionid),
                         '^/set$': (r) => {
@@ -394,7 +398,7 @@ function session_test(description, opts, test_opts, _before, _after) {
             after(() => stopServer(srv));
 
             it('server', () => {
-                ++url.port;
+                url.port = detect_port();
                 srv = new http.Server(url.port, [
                     session.cookie_filter,
                     {
@@ -466,7 +470,7 @@ function session_test(description, opts, test_opts, _before, _after) {
             after(() => stopServer(srv));
 
             it('server', () => {
-                ++url.port;
+                url.port = detect_port();
                 srv = new http.Server(url.port, [
                     session.api_filter,
                     {
@@ -942,7 +946,7 @@ function session_test(description, opts, test_opts, _before, _after) {
             let srv;
             after(() => stopServer(srv));
             it('check token', () => {
-                ++url.port;
+                url.port = detect_port();
                 srv = new http.Server(url.port, [
                     session.cookie_filter,
                     (r) => {
@@ -995,7 +999,11 @@ function session_test(description, opts, test_opts, _before, _after) {
                 var b = true;
                 for (var i = 0; res.cookies && i < res.cookies.length; i++) {
                     if (res.cookies[i] && res.cookies[i].name == 'sessionID') {
-                        assert.equal(res.cookies[i].value, 'eyJhbGciOiJIUzI1NiJ9.eyJpZCI6MTIzNDUsIm5hbWUiOiJGcmFuayJ9.adE0u7POp1NG1GHQjZUGb9lfovw9-GdEVusqh2Sc0-M');
+                        if (disable_auto_hex_key) {
+                            assert.equal(res.cookies[i].value, 'eyJhbGciOiJIUzI1NiJ9.eyJpZCI6MTIzNDUsIm5hbWUiOiJGcmFuayJ9.AeI5krHDMPiNFc4IikrdrYbm9qdsDwdz8p1X9GwADEE');
+                        } else {
+                            assert.equal(res.cookies[i].value, 'eyJhbGciOiJIUzI1NiJ9.eyJpZCI6MTIzNDUsIm5hbWUiOiJGcmFuayJ9.adE0u7POp1NG1GHQjZUGb9lfovw9-GdEVusqh2Sc0-M');
+                        }
                         b = false;
                     }
                 }
@@ -1019,7 +1027,11 @@ function session_test(description, opts, test_opts, _before, _after) {
                 var jwt_token = session.getToken({
                     abc: 'xyz'
                 }, 'test');
-                assert.equal(jwt_token, 'eyJhbGciOiJIUzI1NiJ9.eyJhYmMiOiJ4eXoifQ.ltcUVSz3Np3ZSLpk7TwtTFFjlNY8X2nikCGcuF2ZMgE')
+                if (disable_auto_hex_key) {
+                    assert.equal(jwt_token, 'eyJhbGciOiJIUzI1NiJ9.eyJhYmMiOiJ4eXoifQ.qiVRBz9pUjJUDBO6-083u1wCyGxzFJ6B0USk8iSrEUE')
+                } else {
+                    assert.equal(jwt_token, 'eyJhbGciOiJIUzI1NiJ9.eyJhYmMiOiJ4eXoifQ.ltcUVSz3Np3ZSLpk7TwtTFFjlNY8X2nikCGcuF2ZMgE')
+                }
             });
         });
         describe('api in JWT', function () {
@@ -1044,7 +1056,7 @@ function session_test(description, opts, test_opts, _before, _after) {
             after(() => stopServer(srv));
             
             it('server', () => {
-                ++url.port;
+                url.port = detect_port();
                 srv = new http.Server(url.port, [
                     (r) => {
                         try {
@@ -1099,7 +1111,11 @@ function session_test(description, opts, test_opts, _before, _after) {
                 let res = new http.Client().get(url.host + '/user?id=50&username=hoo');
                 save_id = res.cookies[0].value;
                 //console.error('save_id:', res.cookies[0].value);
-                assert.equal(save_id, 'eyJhbGciOiJIUzI1NiJ9.eyJpZCI6IjUwIiwidXNlcm5hbWUiOiJob28ifQ.ubTia0QE_D-aT8ziMShJEwgnbujatqTJC7amOhxabzw');
+                if (disable_auto_hex_key) {
+                    assert.equal(save_id, 'eyJhbGciOiJIUzI1NiJ9.eyJpZCI6IjUwIiwidXNlcm5hbWUiOiJob28ifQ.W3sB7wnqxIPxhLuxE2qLWWO5aCY8O2F6sIWA05u9B-Q');
+                } else {
+                    assert.equal(save_id, 'eyJhbGciOiJIUzI1NiJ9.eyJpZCI6IjUwIiwidXNlcm5hbWUiOiJob28ifQ.ubTia0QE_D-aT8ziMShJEwgnbujatqTJC7amOhxabzw');
+                }
                 assert.deepEqual(request_session, {
                     "id": "50",
                     "username": "hoo"
@@ -1111,7 +1127,12 @@ function session_test(description, opts, test_opts, _before, _after) {
                     }
                 });
                 //console.error('save_id2:', res.cookies[0].value);
-                assert.equal(request_sessionid, 'eyJhbGciOiJIUzI1NiJ9.eyJpZCI6IjgiLCJ1c2VybmFtZSI6Imxpb24ifQ.bN9IiVDgy2qfQgndBv5SfyLSEotTw1RjK3hgjR-VJpM');
+                
+                if (disable_auto_hex_key) {
+                    assert.equal(request_sessionid, 'eyJhbGciOiJIUzI1NiJ9.eyJpZCI6IjgiLCJ1c2VybmFtZSI6Imxpb24ifQ.aKU95JiljVGiJiw5OU4PmIk6Vm6wJoIrkXBSDbeCmac')
+                } else {
+                    assert.equal(request_sessionid, 'eyJhbGciOiJIUzI1NiJ9.eyJpZCI6IjgiLCJ1c2VybmFtZSI6Imxpb24ifQ.bN9IiVDgy2qfQgndBv5SfyLSEotTw1RjK3hgjR-VJpM');
+                }
                 assert.deepEqual(request_session, {
                     "id": "8",
                     "username": "lion"
@@ -1143,7 +1164,11 @@ function session_test(description, opts, test_opts, _before, _after) {
                 let client = new http.Client();
                 let res = client.get(url.host + '/user?id=8&username=lion');
                 save_id = res.cookies[0].value;
-                assert.equal(save_id, 'eyJhbGciOiJIUzI1NiJ9.eyJpZCI6IjgiLCJ1c2VybmFtZSI6Imxpb24ifQ.bN9IiVDgy2qfQgndBv5SfyLSEotTw1RjK3hgjR-VJpM');
+                if (disable_auto_hex_key) {
+                    assert.equal(save_id, 'eyJhbGciOiJIUzI1NiJ9.eyJpZCI6IjgiLCJ1c2VybmFtZSI6Imxpb24ifQ.aKU95JiljVGiJiw5OU4PmIk6Vm6wJoIrkXBSDbeCmac')
+                } else {
+                    assert.equal(save_id, 'eyJhbGciOiJIUzI1NiJ9.eyJpZCI6IjgiLCJ1c2VybmFtZSI6Imxpb24ifQ.bN9IiVDgy2qfQgndBv5SfyLSEotTw1RjK3hgjR-VJpM');
+                }
                 assert.equal(request_sessionid, save_id);
                 assert.equal(request_session.username, 'lion');
                 res = client.get(url.host + '/get', {
@@ -1151,7 +1176,11 @@ function session_test(description, opts, test_opts, _before, _after) {
                         sessionID: save_id
                     }
                 });
-                assert.equal(request_sessionid, 'eyJhbGciOiJIUzI1NiJ9.eyJpZCI6IjgiLCJ1c2VybmFtZSI6Imxpb24ifQ.bN9IiVDgy2qfQgndBv5SfyLSEotTw1RjK3hgjR-VJpM');
+                if (disable_auto_hex_key) {
+                    assert.equal(request_sessionid, 'eyJhbGciOiJIUzI1NiJ9.eyJpZCI6IjgiLCJ1c2VybmFtZSI6Imxpb24ifQ.aKU95JiljVGiJiw5OU4PmIk6Vm6wJoIrkXBSDbeCmac')
+                } else {
+                    assert.equal(request_sessionid, 'eyJhbGciOiJIUzI1NiJ9.eyJpZCI6IjgiLCJ1c2VybmFtZSI6Imxpb24ifQ.bN9IiVDgy2qfQgndBv5SfyLSEotTw1RjK3hgjR-VJpM');
+                }
                 assert.equal(request_session.username, 'lion');
                 assert.equal(JSON.parse(res.data.toString()).username, 'lion');
                 assert.deepEqual(session.get(request_sessionid), {});
@@ -1253,8 +1282,9 @@ function session_test(description, opts, test_opts, _before, _after) {
 }
 
 ;[
-    { use_existed_kv: true },
-    { use_existed_kv: false },
+    // { use_existed_kv: true },
+    { use_existed_kv: true, disable_auto_hex_key: true },
+    // { use_existed_kv: false },
 ].forEach((test_opts) => {
     session_test(
         'SQLite', {
@@ -1316,5 +1346,5 @@ function session_test(description, opts, test_opts, _before, _after) {
         });
 });
 
-const hr = test.run(console.DEBUG);
-process.exit(hr);
\ No newline at end of file
+test.run(console.DEBUG);
+process.exit();
\ No newline at end of file