diff --git a/dri/rsa/deencrypt.go b/dri/rsa/deencrypt.go
new file mode 100644
index 0000000..a590cfa
--- /dev/null
+++ b/dri/rsa/deencrypt.go
@@ -0,0 +1,143 @@
+package rsa
+
+import (
+	"crypto/rand"
+	"crypto/rsa"
+	"crypto/x509"
+	"encoding/asn1"
+	"encoding/pem"
+	"fmt"
+	"os"
+)
+
+func FileGet(path string) []byte {
+	file, err := os.Open(path)
+	if err != nil {
+		panic(err)
+	}
+	defer file.Close()
+	//读取文件的内容
+	info, _ := file.Stat()
+	buf := make([]byte, info.Size())
+	file.Read(buf)
+	return buf
+}
+
+//RSA加密
+// plainText 要加密的数据
+// path 公钥匙文件地址
+func RSA_Encrypt(plainText []byte, buf []byte) []byte {
+	//pem解码
+	block, _ := pem.Decode(buf)
+	//x509解码
+
+	publicKeyInterface, err := x509.ParsePKIXPublicKey(block.Bytes)
+	if err != nil {
+		panic(err)
+	}
+	//类型断言
+	publicKey := publicKeyInterface.(*rsa.PublicKey)
+	//对明文进行加密
+	cipherText, err := rsa.EncryptPKCS1v15(rand.Reader, publicKey, plainText)
+	if err != nil {
+		panic(err)
+	}
+	//返回密文
+	return cipherText
+}
+
+//RSA解密
+// cipherText 需要解密的byte数据
+// path 私钥文件路径
+func RSA_Decrypt(cipherText []byte, buf []byte) []byte {
+
+	//pem解码
+	block, _ := pem.Decode(buf)
+	//X509解码
+	private, err := x509.ParsePKCS8PrivateKey(block.Bytes)
+
+	if err != nil {
+		panic(err)
+	}
+	//对密文进行解密
+	//plainText,_:=rsa.DecryptPKCS1v15(rand.Reader,privateKey,cipherText)
+
+	v, err := rsa.DecryptPKCS1v15(rand.Reader, private.(*rsa.PrivateKey), cipherText)
+	//返回明文
+	return v
+}
+func MarshalPKCS8PrivateKey(key *rsa.PrivateKey) []byte {
+	info := struct {
+		Version             int
+		PrivateKeyAlgorithm []asn1.ObjectIdentifier
+		PrivateKey          []byte
+	}{}
+	info.Version = 0
+	info.PrivateKeyAlgorithm = make([]asn1.ObjectIdentifier, 1)
+	info.PrivateKeyAlgorithm[0] = asn1.ObjectIdentifier{1, 2, 840, 113549, 1, 1, 1}
+	info.PrivateKey = x509.MarshalPKCS1PrivateKey(key)
+
+	k, err := asn1.Marshal(info)
+	if err != nil {
+		panic(err.Error())
+	}
+	return k
+}
+
+func Demo() {
+	//生成密钥对，保存到文件
+	GenerateRSAKey(2048, "./")
+	//加密
+	data := []byte("hello world")
+	encrypt := RSA_Encrypt(data, FileGet("public.pem"))
+	fmt.Println(string(encrypt))
+
+	// 解密
+	decrypt := RSA_Decrypt(encrypt, FileGet("private.pem"))
+	fmt.Println(string(decrypt))
+}
+
+//生成RSA私钥和公钥，保存到文件中
+// bits 证书大小
+func GenerateRSAKey(bits int, path string) {
+	//GenerateKey函数使用随机数据生成器random生成一对具有指定字位数的RSA密钥
+	//Reader是一个全局、共享的密码用强随机数生成器
+	privateKey, err := rsa.GenerateKey(rand.Reader, bits)
+	if err != nil {
+		panic(err)
+	}
+	//保存私钥
+	//通过x509标准将得到的ras私钥序列化为ASN.1 的 DER编码字符串
+	X509PrivateKey := x509.MarshalPKCS1PrivateKey(privateKey)
+	//使用pem格式对x509输出的内容进行编码
+	//创建文件保存私钥
+	privateFile, err := os.Create(path + "private.pem")
+	if err != nil {
+		panic(err)
+	}
+	defer privateFile.Close()
+	//构建一个pem.Block结构体对象
+	privateBlock := pem.Block{Type: "RSA Private Key", Bytes: X509PrivateKey}
+	//将数据保存到文件
+	pem.Encode(privateFile, &privateBlock)
+
+	//保存公钥
+	//获取公钥的数据
+	publicKey := privateKey.PublicKey
+	//X509对公钥编码
+	X509PublicKey, err := x509.MarshalPKIXPublicKey(&publicKey)
+	if err != nil {
+		panic(err)
+	}
+	//pem格式编码
+	//创建用于保存公钥的文件
+	publicFile, err := os.Create(path + "public.pem")
+	if err != nil {
+		panic(err)
+	}
+	defer publicFile.Close()
+	//创建一个pem.Block结构体对象
+	publicBlock := pem.Block{Type: "RSA Public Key", Bytes: X509PublicKey}
+	//保存到文件
+	pem.Encode(publicFile, &publicBlock)
+}
diff --git a/example/app/init.go b/example/app/init.go
index 48849ae..aa21204 100644
--- a/example/app/init.go
+++ b/example/app/init.go
@@ -4,11 +4,17 @@ import (
 	. "../../../hotime"
 	. "../../../hotime/common"
 	"bytes"
+	"crypto/rand"
+	"crypto/rsa"
 	"crypto/sha256"
+	"crypto/x509"
+	"encoding/base64"
 	"encoding/hex"
+	"encoding/pem"
 	"fmt"
 	"io/ioutil"
 	"net/http"
+	"net/url"
 	"time"
 )
 
@@ -82,3 +88,34 @@ func tencentSendYzm(umobile, code string) error {
 	fmt.Println("response Body:", string(body))
 	return nil
 }
+
+var privateKey = `-----BEGIN RSA Private Key-----
+MIICeAIBADANBgkqhkiG9w0BAQEFAASCAmIwggJeAgEAAoGBAJJuFUH/4m9H5hCCzxtd9BxpjWlG9gbejqiJpV0XJKaU1V7xDBJasswxPY7Zc15RoxWClPoKPwKrbWKm49dgBJebJq5xd4sLCSbboxRkKxpRiJHMZ4LJjYa5h9Ei9RyfoUzqGHqH4UrDy3m3IwPiP19cIBqoU50shyQf92ZpcGZhAgMBAAECgYEAiadU8pODoUs82x6tZbPALQmJN4PO+wwznfqv6sA74yGdKECAMazz0oMjtGt1SiCCqFD2jcweCftvvELZg3mvNg1V0vRQRD1ZCA8HDp8DXm20d11K3+RX39tR4KgyyM3HsSEhkUDujMxKIpYjyiB5iEtV7Ja9bZ2fROszq+mUIqUCQQDQQf6vWRMLBqfnDcU77vuDGOhXbjkF2ytLxLW3fbKaW3GWvC3n93zPM+mcvWSXgkl448+jFjpMktm1Vn+w+YX3AkEAs/+bbRbod6AcVbLu8C5E44qDRoRpu+LF7Cphp8tlSAIRjm2yGP5acMWGRUtH9MF2QJYPF0PgDzdmUSVqWnCAZwJBALnSuRri4wAKn1SmT+ALfLZcSiyBODZGeppv2ijw6qWahH8YR+ncRaxoyMFHqPMbmM1akJIXqktbGREaLnPOIb8CQQCdJycJaL3Qa98xR4dr9cm5rF6PO96g5w6M8jfO6ztjUkMHymh7f99wpFRlvaN2Y06edyV315ARWPohEPy5N44zAkBlLuDHLm1TkTTAfdlL5r2OcdjpaJYloTdn05Mp3+J+w1zTX8k6Mz8lFZtLUcoMeTfQ9rm/+u2KwxS8NljtSZWH
+-----END RSA Private Key-----
+`
+
+func RSA_Decrypt(cipherTextBase64 string) string {
+	cipherText, _ := base64.StdEncoding.DecodeString(cipherTextBase64)
+	buf := []byte(privateKey)
+	//pem解码
+	block, _ := pem.Decode(buf)
+	//X509解码
+	private, err := x509.ParsePKCS8PrivateKey(block.Bytes)
+
+	if err != nil {
+		return ""
+	}
+	//对密文进行解密
+	//plainText,_:=rsa.DecryptPKCS1v15(rand.Reader,privateKey,cipherText)
+
+	v, err := rsa.DecryptPKCS1v15(rand.Reader, private.(*rsa.PrivateKey), cipherText)
+	if err != nil {
+		return ""
+	}
+	//返回明文
+	v1, err1 := url.QueryUnescape(string(v))
+	if err1 != nil {
+		return ""
+	}
+	return v1
+}
diff --git a/example/app/user.go b/example/app/user.go
index 65b6752..566ae8d 100644
--- a/example/app/user.go
+++ b/example/app/user.go
@@ -13,6 +13,45 @@ var userCtr = Ctr{
 	"test": func(this *Context) {
 		this.Session("id", 1)
 	},
+	//自带的登录
+	"login": func(this *Context) {
+
+		phone := RSA_Decrypt(this.Req.FormValue("phone"))
+		idcard := RSA_Decrypt(this.Req.FormValue("idcard"))
+		name := RSA_Decrypt(this.Req.FormValue("name"))
+
+		if len(phone) != 11 ||
+			len(idcard) != 18 ||
+			len(name) < 1 {
+			this.Display(3, "数据校验不通过")
+		}
+
+		user := this.Db.Get("user", "*", Map{"phone": phone})
+
+		if user == nil {
+			user = Map{"phone": phone, "idcard": idcard, "name": name, "create_time": time.Now().Unix(), "modify_time": time.Now().Unix()}
+			user["id"] = this.Db.Insert("user", user)
+
+		} else {
+			user["phone"] = phone
+			user["idcard"] = idcard
+			user["name"] = name
+			user["modify_time"] = time.Now().Unix()
+			re := this.Db.Update("user", user, Map{"id": user.GetCeilInt64("id")})
+			if re == 0 {
+				this.Display(4, "系统错误")
+				return
+			}
+		}
+
+		if user.GetCeilInt64("id") == 0 {
+			this.Display(5, "登录失败")
+			return
+		}
+		this.Session("id", user.GetCeilInt("id"))
+		this.Display(0, "登录成功")
+
+	},
 	"add": func(this *Context) {
 		if this.Req.FormValue("code") != this.Session("code").ToStr() ||
 			this.Req.FormValue("phone") != this.Session("phone").ToStr() {
@@ -48,6 +87,7 @@ var userCtr = Ctr{
 		}
 
 		this.Session("id", user.GetCeilInt("id"))
+		this.Session("code", nil)
 		this.Display(0, "登录成功")
 
 	},
diff --git a/example/bzyy.exe b/example/bzyy.exe
index 1e94fc3..ef7c079 100644
Binary files a/example/bzyy.exe and b/example/bzyy.exe differ