密码加密类 Create At 2017/03/14 @author SeanDragon
| 15 | * @author SeanDragon |
| 16 | */ |
| 17 | public final class ToolPBE2 { |
| 18 | private ToolPBE2() { |
| 19 | throw new UnsupportedOperationException("我是工具类,别初始化我。。。"); |
| 20 | } |
| 21 | |
| 22 | private static final String PBKDF2_ALGORITHM = "PBKDF2WithHmacSHA1"; |
| 23 | |
| 24 | /** |
| 25 | * 盐的长度 |
| 26 | */ |
| 27 | private static final int SALT_BYTE_SIZE = 32 / 2; |
| 28 | |
| 29 | /** |
| 30 | * 生成密文的长度 |
| 31 | */ |
| 32 | private static final int HASH_BIT_SIZE = 128 * 4; |
| 33 | |
| 34 | /** |
| 35 | * 迭代次数 |
| 36 | */ |
| 37 | private static final int PBKDF2_ITERATIONS = 1000; |
| 38 | |
| 39 | /** |
| 40 | * 对输入的密码进行验证 |
| 41 | * |
| 42 | * @param attemptedPassword |
| 43 | * 待验证的密码 |
| 44 | * @param encryptedPassword |
| 45 | * 密文 |
| 46 | * @param salt |
| 47 | * 盐值 |
| 48 | * |
| 49 | * @return 是否验证成功 |
| 50 | * |
| 51 | * @throws NoSuchAlgorithmException |
| 52 | * @throws InvalidKeySpecException |
| 53 | */ |
| 54 | public static boolean authenticate(String attemptedPassword, String encryptedPassword, String salt) throws InvalidKeySpecException, NoSuchAlgorithmException { |
| 55 | // 用相同的盐值对用户输入的密码进行加密 |
| 56 | String encryptedAttemptedPassword = getEncryptedPassword(attemptedPassword, salt); |
| 57 | // 把加密后的密文和原密文进行比较,相同则验证成功,否则失败 |
| 58 | return encryptedAttemptedPassword.equals(encryptedPassword); |
| 59 | } |
| 60 | |
| 61 | /** |
| 62 | * 生成密文 |
| 63 | * |
| 64 | * @param password |
| 65 | * 明文密码 |
| 66 | * @param salt |
| 67 | * 盐值 |
| 68 | * |
| 69 | * @return |
| 70 | * |
| 71 | * @throws NoSuchAlgorithmException |
| 72 | * @throws InvalidKeySpecException |
| 73 | */ |
| 74 | public static String getEncryptedPassword(String password, String salt) throws NoSuchAlgorithmException, |
nothing calls this directly
no outgoing calls
no test coverage detected