diff --git a/pom.xml b/pom.xml
index 4e9e42a..e11d045 100644
--- a/pom.xml
+++ b/pom.xml
@@ -118,6 +118,13 @@
             <version>${javax.mail.version}</version>
         </dependency>
 
+        <!-- https://mvnrepository.com/artifact/commons-codec/commons-codec -->
+        <dependency>
+            <groupId>commons-codec</groupId>
+            <artifactId>commons-codec</artifactId>
+            <version>1.5</version>
+        </dependency>
+
         <dependency>
             <groupId>com.loafle</groupId>
             <artifactId>overflow_api_server</artifactId>
diff --git a/src/main/java/com/loafle/overflow/module/email/dao/EmailAuthDAO.java b/src/main/java/com/loafle/overflow/module/email/dao/EmailAuthDAO.java
index 54070bc..f950196 100644
--- a/src/main/java/com/loafle/overflow/module/email/dao/EmailAuthDAO.java
+++ b/src/main/java/com/loafle/overflow/module/email/dao/EmailAuthDAO.java
@@ -3,8 +3,6 @@ package com.loafle.overflow.module.email.dao;
 import com.loafle.overflow.module.email.model.EmailAuth;
 import com.loafle.overflow.module.member.model.Member;
 import org.springframework.data.jpa.repository.JpaRepository;
-import org.springframework.data.jpa.repository.Query;
-import org.springframework.data.repository.query.Param;
 import org.springframework.stereotype.Repository;
 
 import java.util.List;
@@ -14,8 +12,7 @@ import java.util.List;
  */
 @Repository
 public interface EmailAuthDAO extends JpaRepository<EmailAuth, Long> {
-    @Query("select e from EmailAuth e where e.emailAuthKey = :authKey")
-    EmailAuth findByEmailAuthKey(@Param("authKey") String emailAuthKey);
+    EmailAuth findByEmailAuthKey(String emailAuthKey);
 
     List<EmailAuth> findByMember(Member member);
 
diff --git a/src/main/java/com/loafle/overflow/module/email/model/EmailAuth.java b/src/main/java/com/loafle/overflow/module/email/model/EmailAuth.java
index 263e564..d782613 100644
--- a/src/main/java/com/loafle/overflow/module/email/model/EmailAuth.java
+++ b/src/main/java/com/loafle/overflow/module/email/model/EmailAuth.java
@@ -48,7 +48,7 @@ public class EmailAuth {
     }
 
     @Basic
-    @Column(name = "AUTH_CONFIRM_DATE", nullable = true,  insertable = true, updatable = false)
+    @Column(name = "AUTH_CONFIRM_DATE", nullable = true,  insertable = true, updatable = true)
     public Date getAuthConfirmDate() {
         return authConfirmDate;
     }
diff --git a/src/main/java/com/loafle/overflow/module/email/service/EmailAuthService.java b/src/main/java/com/loafle/overflow/module/email/service/EmailAuthService.java
index e2db11a..98fae8f 100644
--- a/src/main/java/com/loafle/overflow/module/email/service/EmailAuthService.java
+++ b/src/main/java/com/loafle/overflow/module/email/service/EmailAuthService.java
@@ -2,7 +2,10 @@ package com.loafle.overflow.module.email.service;
 
 import com.loafle.overflow.module.email.dao.EmailAuthDAO;
 import com.loafle.overflow.module.email.model.EmailAuth;
+import com.loafle.overflow.module.member.dao.MemberDAO;
 import com.loafle.overflow.module.member.model.Member;
+import com.loafle.overflow.module.meta.model.MetaMemberStatus;
+import org.apache.commons.codec.binary.Base64;
 import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.core.io.FileSystemResource;
 import org.springframework.mail.MailException;
@@ -11,9 +14,16 @@ import org.springframework.mail.javamail.JavaMailSender;
 import org.springframework.mail.javamail.MimeMessageHelper;
 import org.springframework.stereotype.Service;
 
+import javax.crypto.Cipher;
+import javax.crypto.spec.IvParameterSpec;
+import javax.crypto.spec.SecretKeySpec;
 import javax.mail.MessagingException;
 import javax.mail.internet.MimeMessage;
 import java.io.File;
+import java.io.UnsupportedEncodingException;
+import java.net.URLDecoder;
+import java.net.URLEncoder;
+import java.util.Date;
 import java.util.List;
 
 /**
@@ -28,17 +38,28 @@ public class EmailAuthService {
     @Autowired
     private EmailAuthDAO emailAuthDAO;
 
-    public EmailAuth sendEmailByMember(long memberId, String memberEmail) {
-        try {
-            this.sendSimpleEmail(memberEmail, "Confirm Email", "Confirm Email");
-        }catch (MailException e) {
-            e.printStackTrace();
-        }
+    @Autowired
+    private MemberDAO memberDAO;
+
+    private String key = "loafle@RandomKey";
+    private String initVector = "loafleInitVector";
+
+    public EmailAuth sendEmailByMember(long memberId, String memberEmail) throws UnsupportedEncodingException {
 
         EmailAuth auth = new EmailAuth();
         auth.setMember(new Member(memberId));
         // Todo AuthKey Generation
-        auth.setEmailAuthKey("djdjdjdjeiejdikdjki");
+        String en = this.encrypt(memberEmail);
+        auth.setEmailAuthKey(en);
+
+        String encode = URLEncoder.encode(en, "UTF-8");
+
+//        System.out.println("encode = [" + encode + "]");
+        try {
+            this.sendSimpleEmail(memberEmail, "Confirm Email", "http://127.0.0.1:19080/account/check_email?key="+ encode +"\r\nConfirm Email");
+        }catch (MailException e) {
+            e.printStackTrace();
+        }
 
         this.emailAuthDAO.save(auth);
 
@@ -49,10 +70,25 @@ public class EmailAuthService {
         return this.emailAuthDAO.findOne(id);
     }
 
-    public EmailAuth readByAuthKey(String authKey) {
-        return this.emailAuthDAO.findByEmailAuthKey(authKey);
+    public EmailAuth readByAuthKey(String authKey) throws UnsupportedEncodingException {
+        System.out.println("authKey = [" + authKey + "]");
+        String deStr = URLDecoder.decode(authKey, "UTF-8");
+        System.out.println("deStr = [" + deStr + "]");
+
+        EmailAuth auth = this.emailAuthDAO.findByEmailAuthKey(deStr);
+
+        if (auth != null) {
+            auth.setAuthConfirmDate(new Date());
+            this.emailAuthDAO.save(auth);
+            auth.getMember().setStatus(new MetaMemberStatus((short)2));
+            this.memberDAO.save(auth.getMember());
+        }
+        return auth;
     }
 
+    // dZQgXM1o/Cx48X8DM+6ec/oPfqA2l/LdWtijOZ2EnWk=
+    // dZQgXM1o/Cx48X8DM 6ec/oPfqA2l/LdWtijOZ2EnWk=
+
     public List<EmailAuth> readByMember(long memberId) {
         return this.emailAuthDAO.findByMember(new Member(memberId));
     }
@@ -86,4 +122,44 @@ public class EmailAuthService {
 
         mailSender.send(message);
     }
+
+    private String encrypt(String value) {
+        try {
+            IvParameterSpec iv = new IvParameterSpec(initVector.getBytes("UTF-8"));
+
+            SecretKeySpec skeySpec = new SecretKeySpec(key.getBytes("UTF-8"), "AES");
+
+            Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5PADDING");
+            cipher.init(Cipher.ENCRYPT_MODE, skeySpec, iv);
+
+            byte[] encrypted = cipher.doFinal(value.getBytes());
+            System.out.println("encrypted string: "
+                    + Base64.encodeBase64String(encrypted));
+
+            return Base64.encodeBase64String(encrypted);
+        } catch (Exception ex) {
+            ex.printStackTrace();
+        }
+
+        return null;
+    }
+
+    public String decrypt(String encrypted) {
+        try {
+            IvParameterSpec iv = new IvParameterSpec(initVector.getBytes("UTF-8"));
+            SecretKeySpec skeySpec = new SecretKeySpec(key.getBytes("UTF-8"), "AES");
+
+            Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5PADDING");
+            cipher.init(Cipher.DECRYPT_MODE, skeySpec, iv);
+
+            byte[] original = cipher.doFinal(Base64.decodeBase64(encrypted));
+
+            return new String(original);
+        } catch (Exception ex) {
+            ex.printStackTrace();
+        }
+
+        return null;
+    }
+
 }
diff --git a/src/main/java/com/loafle/overflow/module/member/service/MemberService.java b/src/main/java/com/loafle/overflow/module/member/service/MemberService.java
index 4f8281f..31e611e 100644
--- a/src/main/java/com/loafle/overflow/module/member/service/MemberService.java
+++ b/src/main/java/com/loafle/overflow/module/member/service/MemberService.java
@@ -10,6 +10,8 @@ import org.springframework.beans.factory.annotation.Autowired;
 import org.springframework.security.crypto.bcrypt.BCryptPasswordEncoder;
 import org.springframework.stereotype.Service;
 
+import java.io.UnsupportedEncodingException;
+
 /**
  * Created by geek on 17. 6. 28.
  */
@@ -43,7 +45,7 @@ public class MemberService {
         return m;
     }
 
-    public Member signup(Member member, String pw) {
+    public Member signup(Member member, String pw) throws UnsupportedEncodingException {
 
         Member isMember = this.memberDAO.findByEmail(member.getEmail());
 
diff --git a/src/test/java/com/loafle/overflow/module/email/service/EmailAuthServiceTest.java b/src/test/java/com/loafle/overflow/module/email/service/EmailAuthServiceTest.java
index ee4bdb9..c95647e 100644
--- a/src/test/java/com/loafle/overflow/module/email/service/EmailAuthServiceTest.java
+++ b/src/test/java/com/loafle/overflow/module/email/service/EmailAuthServiceTest.java
@@ -25,4 +25,5 @@ public class EmailAuthServiceTest {
     public void TestMailSend() throws Exception {
         this.emailAuthService.sendEmailByMember((long)1, "geek@loafle.com");
     }
+
 }
\ No newline at end of file