자바 이클립스에서 제가 만든 회원가입 페이지에 PBKDF2를 적용하려고 합니다.

Question

http://ironnip.tistory.com/80 여기 사이트를 보고 PBKDF2 에 대한 라이브러리와 소스코드를 찾았습니다.라이브러리는 그냥 넣으면 되지만 여기 사이트에서 말하는 자바 클래스? 와 제가 만든 회원가입 페이지에 적용하는 방법에 대해서 못찾고 있습니다.package pbkdf2; import java.security.SecureRandom; import javax.crypto.spec.PBEKeySpec; import javax.crypto.SecretKeyFactory; import java.math.BigInteger; import java.security.NoSuchAlgorithmException; import java.security.spec.InvalidKeySpecException; /* * PBKDF2 salted password hashing. * Author: havoc AT defuse.ca * www: http://crackstation.net/hashing-security.htm */ public class PasswdSecurity { public static final String PBKDF2_ALGORITHM = "PBKDF2WithHmacSHA1"; // The following constants may be changed without breaking existing hashes. public static final int SALT_BYTES = 24; public static final int HASH_BYTES = 24; public static final int PBKDF2_ITERATIONS = 1000; public static final int ITERATION_INDEX = 0; public static final int SALT_INDEX = 1; public static final int PBKDF2_INDEX = 2; /** * Returns a salted PBKDF2 hash of the password. * * @param password the password to hash * @return a salted PBKDF2 hash of the password */ public static String createHash(String password) throws NoSuchAlgorithmException, InvalidKeySpecException { return createHash(password.toCharArray()); } /** * Returns a salted PBKDF2 hash of the password. * * @param password the password to hash * @return a salted PBKDF2 hash of the password */ public static String createHash(char[] password) throws NoSuchAlgorithmException, InvalidKeySpecException { // Generate a random salt SecureRandom random = new SecureRandom(); byte[] salt = new byte[SALT_BYTES]; random.nextBytes(salt); // Hash the password byte[] hash = pbkdf2(password, salt, PBKDF2_ITERATIONS, HASH_BYTES); // format iterations:salt:hash return PBKDF2_ITERATIONS + ":" + toHex(salt) + ":" + toHex(hash); } /** * Validates a password using a hash. * * @param password the password to check * @param goodHash the hash of the valid password * @return true if the password is correct, false if not */ public static boolean validatePassword(String password, String goodHash) throws NoSuchAlgorithmException, InvalidKeySpecException { return validatePassword(password.toCharArray(), goodHash); } /** * Validates a password using a hash. * * @param password the password to check * @param goodHash the hash of the valid password * @return true if the password is correct, false if not */ public static boolean validatePassword(char[] password, String goodHash) throws NoSuchAlgorithmException, InvalidKeySpecException { // Decode the hash into its parameters String[] params = goodHash.split(":"); int iterations = Integer.parseInt(params[ITERATION_INDEX]); byte[] salt = fromHex(params[SALT_INDEX]); byte[] hash = fromHex(params[PBKDF2_INDEX]); // Compute the hash of the provided password, using the same salt, // iteration count, and hash length byte[] testHash = pbkdf2(password, salt, iterations, hash.length); // Compare the hashes in constant time. The password is correct if // both hashes match. return slowEquals(hash, testHash); } /** * Compares two byte arrays in length-constant time. This comparison method * is used so that password hashes cannot be extracted from an on-line * system using a timing attack and then attacked off-line. * * @param a the first byte array * @param b the second byte array * @return true if both byte arrays are the same, false if not */ private static boolean slowEquals(byte[] a, byte[] b) { int diff = a.length ^ b.length; for(int i = 0; i < a.length && i < b.length; i++) diff |= a[i] ^ b[i]; return diff == 0; } /** * Computes the PBKDF2 hash of a password. * * @param password the password to hash. * @param salt the salt * @param iterations the iteration count (slowness factor) * @param bytes the length of the hash to compute in bytes * @return the PBDKF2 hash of the password */ private static byte[] pbkdf2(char[] password, byte[] salt, int iterations, int bytes) throws NoSuchAlgorithmException, InvalidKeySpecException { PBEKeySpec spec = new PBEKeySpec(password, salt, iterations, bytes * 8); SecretKeyFactory skf = SecretKeyFactory.getInstance(PBKDF2_ALGORITHM); return skf.generateSecret(spec).getEncoded(); } /** * Converts a string of hexadecimal characters into a byte array. * * @param hex the hex string * @return the hex string decoded into a byte array */ private static byte[] fromHex(String hex) { byte[] binary = new byte[hex.length() / 2]; for(int i = 0; i < binary.length; i++) { binary[i] = (byte)Integer.parseInt(hex.substring(2*i, 2*i+2), 16); } return binary; } /** * Converts a byte array into a hexadecimal string. * * @param array the byte array to convert * @return a length*2 character string encoding the byte array */ private static String toHex(byte[] array) { BigInteger bi = new BigInteger(1, array); String hex = bi.toString(16); int paddingLength = (array.length * 2) - hex.length(); if(paddingLength > 0) return String.format("%0" + paddingLength + "d", 0) + hex; else return hex; } /** * Tests the basic functionality of the PasswordHash class * * @param args ignored */ public static void main(String[] args) { try { // Print out 10 hashes for(int i = 0; i < 10; i++) System.out.println(PasswdSecurity.createHash("p assw0Rd!")); // Test password validation boolean failure = false; System.out.println("Running tests..."); for(int i = 0; i < 100; i++) { String password = ""+i; String hash = createHash(password); String secondHash = createHash(password); if(hash.equals(secondHash)) { System.out.println("FAILURE: TWO HASHES ARE EQUAL!"); failure = true; } String wrongPassword = ""+(i+1); if(validatePassword(wrongPassword, hash)) { System.out.println("FAILURE: WRONG PASSWORD ACCEPTED!"); failure = true; } if(!validatePassword(password, hash)) { System.out.println("FAILURE: GOOD PASSWORD NOT ACCEPTED!"); failure = true; } } if(failure) System.out.println("TESTS FAILED!"); else System.out.println("TESTS PASSED!"); } catch(Exception ex) { System.out.println("ERROR: " + ex); } } } <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> 회원가입 창 <% request.setCharacterEncoding("UTF-8"); %> <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> 회원가입 창 <% request.setCharacterEncoding("UTF-8"); %> <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <% int rst = 0; String User_id = (String)request.getParameter("user_id"); rst = dao.idCheck(User_id); %> 아이디 중복 확인 <% if(rst == 1){ %>

이미 아이디가 있습니다.

<%}else{ %>

사용가능한 아이디 입니다.

<%} %> <%@ page language="java" contentType="text/html; charset=UTF-8" pageEncoding="UTF-8"%> <% int rst = 0; String Device_id = (String)request.getParameter("device_id"); rst = dao.devcheck(Device_id); %> 디바이스 아이디 중복 확인 <% if(rst == 0){ %>

사용가능한 디바이스 입니다.

<%}else{ %>

잘못된 디바이스 입니다.

<%} %> package my.member; import java.sql.Connection; import java.sql.PreparedStatement; import java.sql.ResultSet; import my.util.ConnUtil; public class MemberDao { public int insertMember(MemberVo vo){ int rst = 0; Connection conn = null; PreparedStatement ps = null; try{ conn = ConnUtil.getConnection(); String sql = "update members set user_id=?, user_passwd=?, phone=?, e_mail=?, name=? where device_id=? and user_id user_passwd phone e_mail name is null "; ps = conn.prepareStatement(sql); System.out.println( " user_id : " + vo.getUser_id()); ps.setString(1, vo.getUser_id()); System.out.println( " user_passwd : " + vo.getUser_passwd()); ps.setString(2, vo.getUser_passwd()); System.out.println( " phone : " + vo.getPhone()); ps.setString(3, vo.getPhone()); System.out.println( " e_mail : " + vo.getE_mail()); ps.setString(4, vo.getE_mail()); System.out.println( " name : " + vo.getName()); ps.setString(5, vo.getName()); System.out.println( " device_id : " + vo.getDevice_id()); ps.setString(6, vo.getDevice_id()); /*System.out.println( " ap_ssid : " + vo.getAp_ssid()); ps.setString(7, vo.getAp_ssid()); System.out.println( " ap_password : " + vo.getAp_password()); ps.setString(8, vo.getAp_password());*/ rst = ps.executeUpdate(); }catch(Exception e){ e.printStackTrace(); }finally{ ConnUtil.close(ps, conn); } return rst; } //id 중복확인 public int idCheck(String user_id){ int rst = 0; Connection conn = null; PreparedStatement ps = null; ResultSet rs = null; try{ conn = ConnUtil.getConnection(); String sql = "select * from member where user_id=?"; ps = conn.prepareStatement(sql); ps.setString(1,user_id); rs = ps.executeQuery(); if(rs.next()){ rst = 1; }else{ rst = 0; } }catch(Exception e){ e.printStackTrace(); }finally{ ConnUtil.close(rs, ps, conn); } return rst; } //device_id 중복확인 public int devcheck(String device_id){ int rst = 0; Connection conn = null; PreparedStatement ps = null; ResultSet rs = null; try{ conn = ConnUtil.getConnection(); String sql = "select * from members where device_id=?"; ps = conn.prepareStatement(sql); ps.setString(1,device_id); rs = ps.executeQuery(); if(rs.next()){ rst = 1; }else{ rst = 0; } }catch(Exception e){ e.printStackTrace(); }finally{ ConnUtil.close(rs, ps, conn); } return rst; } //내 정보 확인 public MemberVo selectMember(String user_id){ MemberVo vo = new MemberVo(); Connection conn = null; PreparedStatement ps = null; ResultSet rs = null; try{ conn = ConnUtil.getConnection(); String sql = "select * from members where user_id = ?"; ps = conn.prepareStatement(sql); ps.setString(1, user_id); rs = ps.executeQuery(); if(rs.next()){ vo.setUser_id(rs.getString("user_id")); vo.setUser_passwd(rs.getString("user_passwd")); vo.setPhone(rs.getString("phone")); vo.setE_mail(rs.getString("e_mail")); vo.setName(rs.getString("name")); vo.setDevice_id(rs.getString("device_id")); vo.setReg_date(rs.getDate("reg_date")); } }catch(Exception e){ e.printStackTrace(); }finally{ ConnUtil.close(rs, ps, conn); } return vo; } }package my.member; import java.sql.Date; public class MemberVo { private String user_id; private String user_passwd; private String phone; private String e_mail; private String name; private String device_id; private Date reg_date; /*private String ap_ssid; private String ap_password;*/ public String getUser_id() { return user_id; } public void setUser_id(String user_id) { this.user_id = user_id; } public String getUser_passwd() { return user_passwd; } public void setUser_passwd(String user_passwd) { this.user_passwd = user_passwd; } public String getPhone() { return phone; } public void setPhone(String phone) { this.phone = phone; } public String getE_mail() { return e_mail; } public void setE_mail(String e_mail) { this.e_mail = e_mail; } public String getName() { return name; } public void setName(String name) { this.name = name; } public String getDevice_id() { return device_id; } public void setDevice_id(String device_id) { this.device_id = device_id; } public Date getReg_date() { return reg_date; } public void setReg_date(Date reg_date) { this.reg_date = reg_date; } /*public String getAp_ssid() { return ap_ssid; } public void setAp_ssid(String ap_ssid) { this.ap_ssid = ap_ssid; } public String getAp_password() { return ap_password; } public void setAp_password(String ap_password) { this.ap_password = ap_password; }*/ }

자바 이클립스에서 제가 만든 회원가입 페이지에 PBKDF2를 적용하려고 합니다.

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