diff --git a/src/controllers/files/establish_controller.go b/src/controllers/files/establish_controller.go
index b574617..e598abf 100644
--- a/src/controllers/files/establish_controller.go
+++ b/src/controllers/files/establish_controller.go
@@ -4,7 +4,6 @@ import (
 	"github.com/genshen/ssh-web-console/src/models"
 	"github.com/genshen/ssh-web-console/src/utils"
 	"github.com/oklog/ulid/v2"
-	"golang.org/x/crypto/ssh"
 	"log"
 	"math/rand"
 	"net/http"
@@ -34,7 +33,7 @@ func (e SftpEstablish) ServeAfterAuthenticated(w http.ResponseWriter, r *http.Re
 
 	// add sftp client to list if success.
 	user := session.Value.(models.UserInfo)
-	sftpEntity, err := utils.NewSftpEntity(utils.SftpNode(utils.NewSSHNode(user.Host, user.Port)), user.Username, ssh.Password(user.Password))
+	sftpEntity, err := utils.NewSftpEntity(utils.SftpNode(utils.NewSSHNode(user.Host, user.Port)), user.Username, (user.Password))
 	if err != nil {
 		http.Error(w, "Error while establishing sftp connection", 400)
 		log.Println("Error: while establishing sftp connection", err)
diff --git a/src/controllers/main_controller.go b/src/controllers/main_controller.go
index ca03c07..f05d7a6 100644
--- a/src/controllers/main_controller.go
+++ b/src/controllers/main_controller.go
@@ -3,7 +3,6 @@ package controllers
 import (
 	"github.com/genshen/ssh-web-console/src/models"
 	"github.com/genshen/ssh-web-console/src/utils"
-	"golang.org/x/crypto/ssh"
 	"net/http"
 	"strconv"
 )
@@ -33,7 +32,7 @@ func SignIn(w http.ResponseWriter, r *http.Request) {
 			//try to login session account
 			session := utils.SSHShellSession{}
 			session.Node = utils.NewSSHNode(userinfo.Host, userinfo.Port)
-			err := session.Connect(userinfo.Username, ssh.Password(userinfo.Password))
+			err := session.Connect(userinfo.Username, (userinfo.Password))
 			if err != nil {
 				errUnmarshal = models.JsonResponse{HasError: true, Message: models.SIGN_IN_FORM_TYPE_ERROR_PASSWORD}
 			} else {
diff --git a/src/controllers/websocket.go b/src/controllers/websocket.go
index dd14db7..f92fcc0 100644
--- a/src/controllers/websocket.go
+++ b/src/controllers/websocket.go
@@ -5,7 +5,6 @@ import (
 	"fmt"
 	"github.com/genshen/ssh-web-console/src/models"
 	"github.com/genshen/ssh-web-console/src/utils"
-	"golang.org/x/crypto/ssh"
 	"io"
 	"log"
 	"net/http"
@@ -44,7 +43,7 @@ func (c *SSHWebSocketHandle) ServeAfterAuthenticated(w http.ResponseWriter, r *h
 	userInfo := session.Value.(models.UserInfo)
 	cols := utils.GetQueryInt32(r, "cols", 120)
 	rows := utils.GetQueryInt32(r, "rows", 32)
-	sshAuth := ssh.Password(userInfo.Password)
+	sshAuth := (userInfo.Password)
 	if err := c.SSHShellOverWS(r.Context(), conn, claims.Host, claims.Port, userInfo.Username, sshAuth, cols, rows); err != nil {
 		log.Println("Error,", err)
 		utils.Abort(w, err.Error(), 500)
@@ -56,7 +55,7 @@ func (c *SSHWebSocketHandle) ServeAfterAuthenticated(w http.ResponseWriter, r *h
 // then we deliver ssh data via ssh connection between browser and ssh server.
 // That is, read webSocket data from browser (e.g. 'ls' command) and send data to ssh server via ssh connection;
 // the other hand, read returned ssh data from ssh server and write back to browser via webSocket API.
-func (c *SSHWebSocketHandle) SSHShellOverWS(ctx context.Context, ws *websocket.Conn, host string, port int, username string, auth ssh.AuthMethod, cols, rows uint32) error {
+func (c *SSHWebSocketHandle) SSHShellOverWS(ctx context.Context, ws *websocket.Conn, host string, port int, username string, auth string, cols, rows uint32) error {
 	//setup ssh connection
 	sshEntity := utils.SSHShellSession{
 		Node: utils.NewSSHNode(host, port),
diff --git a/src/utils/sftp_utils.go b/src/utils/sftp_utils.go
index fdc0f68..4844b67 100644
--- a/src/utils/sftp_utils.go
+++ b/src/utils/sftp_utils.go
@@ -3,7 +3,6 @@ package utils
 import (
 	"fmt"
 	"github.com/pkg/sftp"
-	"golang.org/x/crypto/ssh"
 	"sync"
 )
 
@@ -36,12 +35,12 @@ var (
 	subscribers = make(map[string]SftpEntity)
 )
 
-func NewSftpEntity(user SftpNode, username string, auth ssh.AuthMethod) (SftpEntity, error) {
+func NewSftpEntity(user SftpNode, username string, pwd string) (SftpEntity, error) {
 	sshEntity := SSHShellSession{
 		Node: NewSSHNode(user.Host, user.Port),
 	}
 	// init ssh connection.
-	err := sshEntity.Connect(username, auth)
+	err := sshEntity.Connect(username, pwd)
 	if err != nil {
 		return SftpEntity{}, err
 	}
diff --git a/src/utils/ssh_utils.go b/src/utils/ssh_utils.go
index 3ffc686..54ef4e7 100644
--- a/src/utils/ssh_utils.go
+++ b/src/utils/ssh_utils.go
@@ -19,7 +19,7 @@ type SSHConnInterface interface {
 	// close ssh connection
 	Close() error
 	// connect using username and password
-	Connect(username string, auth ssh.AuthMethod) error
+	Connect(username string, pwd string) error
 	// config connection after connected and may also create a ssh session.
 	Config(cols, rows uint32) (*ssh.Session, error)
 }
@@ -43,7 +43,7 @@ func (node *Node) GetClient() (*ssh.Client, error) {
 
 //see: http://www.nljb.net/default/Go-SSH-%E4%BD%BF%E7%94%A8/
 // establish a ssh connection. if success return nil, than can operate ssh connection via pointer Node.client in struct Node.
-func (node *Node) Connect(username string, auth ssh.AuthMethod) error {
+func (node *Node) Connect(username string, pwd string) error {
 	//var hostKey ssh.PublicKey
 
 	// An SSH client is represented with a ClientConn.
@@ -54,7 +54,14 @@ func (node *Node) Connect(username string, auth ssh.AuthMethod) error {
 	config := &ssh.ClientConfig{
 		User: username,
 		Auth: []ssh.AuthMethod{
-			auth,
+			ssh.Password(pwd),
+            ssh.KeyboardInteractive(func(name, instruction string, questions []string, echos []bool) ([]string, error){
+                answers := make([]string, len(questions))
+                for i := range answers {
+                    answers[i] = pwd
+                }
+                return answers, nil
+            }),
 		},
 		//HostKeyCallback: ssh.FixedHostKey(hostKey),
 		HostKeyCallback: func(hostname string, remote net.Addr, key ssh.PublicKey) error {