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edit logger code 

improve code quality
This commit is contained in:
sharifi 2020-11-12 14:08:44 +03:30
parent 1b22786001
commit b0d7dd8359
1 changed files with 73 additions and 52 deletions
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123
core-java-modules/core-java-security-2/src/main/java/com/baeldung/aes/AESUtil.java
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@ -3,11 +3,22 @@ package com.baeldung.crypto;
import org.slf4j.Logger; import org.slf4j.Logger;
import org.slf4j.LoggerFactory; import org.slf4j.LoggerFactory;
import javax.crypto.*; import javax.crypto.Cipher;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.NoSuchPaddingException;
import javax.crypto.SecretKey;
import javax.crypto.BadPaddingException;
import javax.crypto.KeyGenerator;
import javax.crypto.SecretKeyFactory;
import javax.crypto.SealedObject;
import javax.crypto.spec.IvParameterSpec; import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.PBEKeySpec; import javax.crypto.spec.PBEKeySpec;
import javax.crypto.spec.SecretKeySpec; import javax.crypto.spec.SecretKeySpec;
import java.io.*; import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;
import java.io.Serializable;
import java.security.InvalidAlgorithmParameterException; import java.security.InvalidAlgorithmParameterException;
import java.security.InvalidKeyException; import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException; import java.security.NoSuchAlgorithmException;
@ -17,18 +28,19 @@ import java.security.spec.KeySpec;
import java.util.Base64; import java.util.Base64;
public class AESUtil { public class AESUtil {
static Logger logger = LoggerFactory.getLogger(AESUtil.class); private static final Logger LOGGER = LoggerFactory.getLogger(AESUtil.class);
public static String encrypt(String algorithm, String input, SecretKey key, IvParameterSpec iv) { public static String encrypt(String algorithm, String input, SecretKey key, IvParameterSpec iv) {
try { try {
Cipher cipher = Cipher.getInstance(algorithm); Cipher cipher = Cipher.getInstance(algorithm);
cipher.init(Cipher.ENCRYPT_MODE, key, iv); cipher.init(Cipher.ENCRYPT_MODE, key, iv);
byte[] cipherText = cipher.doFinal(input.getBytes()); byte[] cipherText = cipher.doFinal(input.getBytes());
return Base64.getEncoder().encodeToString(cipherText); return Base64.getEncoder()
} catch (NoSuchAlgorithmException | NoSuchPaddingException .encodeToString(cipherText);
| InvalidKeyException | InvalidAlgorithmParameterException } catch (NoSuchAlgorithmException | NoSuchPaddingException |
| IllegalBlockSizeException | BadPaddingException exp) { InvalidKeyException | InvalidAlgorithmParameterException |
logger.error(exp.getMessage()); IllegalBlockSizeException | BadPaddingException exp) {
LOGGER.error(exp.getMessage());
} }
return null; return null;
} }
@ -37,12 +49,13 @@ public class AESUtil {
try { try {
Cipher cipher = Cipher.getInstance(algorithm); Cipher cipher = Cipher.getInstance(algorithm);
cipher.init(Cipher.DECRYPT_MODE, key, iv); cipher.init(Cipher.DECRYPT_MODE, key, iv);
byte[] plainText = cipher.doFinal(Base64.getDecoder().decode(cipherText)); byte[] plainText = cipher.doFinal(Base64.getDecoder()
.decode(cipherText));
return new String(plainText); return new String(plainText);
} catch (NoSuchAlgorithmException | NoSuchPaddingException } catch (NoSuchAlgorithmException | NoSuchPaddingException |
| InvalidKeyException | InvalidAlgorithmParameterException InvalidKeyException | InvalidAlgorithmParameterException |
| IllegalBlockSizeException | BadPaddingException exp) { IllegalBlockSizeException | BadPaddingException exp) {
logger.error(exp.getMessage()); LOGGER.error(exp.getMessage());
} }
return null; return null;
} }
@ -58,7 +71,8 @@ public class AESUtil {
throws NoSuchAlgorithmException, InvalidKeySpecException { throws NoSuchAlgorithmException, InvalidKeySpecException {
SecretKeyFactory factory = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA256"); SecretKeyFactory factory = SecretKeyFactory.getInstance("PBKDF2WithHmacSHA256");
KeySpec spec = new PBEKeySpec(password.toCharArray(), salt.getBytes(), 65536, 256); KeySpec spec = new PBEKeySpec(password.toCharArray(), salt.getBytes(), 65536, 256);
SecretKey secret = new SecretKeySpec(factory.generateSecret(spec).getEncoded(), "AES"); SecretKey secret = new SecretKeySpec(factory.generateSecret(spec)
.getEncoded(), "AES");
return secret; return secret;
} }
@ -68,13 +82,15 @@ public class AESUtil {
return new IvParameterSpec(iv); return new IvParameterSpec(iv);
} }
public static void encryptFile(String algorithm, SecretKey key, IvParameterSpec iv public static void encryptFile(String algorithm, SecretKey key, IvParameterSpec iv,
, File inputFile, File outputFile) throws IOException { File inputFile, File outputFile) throws IOException {
FileInputStream inputStream = null;
FileOutputStream outputStream = null;
try { try {
Cipher cipher = Cipher.getInstance(algorithm); Cipher cipher = Cipher.getInstance(algorithm);
cipher.init(Cipher.ENCRYPT_MODE, key, iv); cipher.init(Cipher.ENCRYPT_MODE, key, iv);
FileInputStream inputStream = new FileInputStream(inputFile); inputStream = new FileInputStream(inputFile);
FileOutputStream outputStream = new FileOutputStream(outputFile); outputStream = new FileOutputStream(outputFile);
byte[] buffer = new byte[64]; byte[] buffer = new byte[64];
int bytesRead; int bytesRead;
while ((bytesRead = inputStream.read(buffer)) != -1) { while ((bytesRead = inputStream.read(buffer)) != -1) {
@ -87,22 +103,25 @@ public class AESUtil {
if (outputBytes != null) { if (outputBytes != null) {
outputStream.write(outputBytes); outputStream.write(outputBytes);
} }
} catch (InvalidAlgorithmParameterException | NoSuchAlgorithmException |
NoSuchPaddingException | BadPaddingException |
IllegalBlockSizeException | InvalidKeyException exp) {
LOGGER.error(exp.getMessage());
} finally {
inputStream.close(); inputStream.close();
outputStream.close(); outputStream.close();
} catch (InvalidAlgorithmParameterException | NoSuchAlgorithmException
| NoSuchPaddingException | BadPaddingException
| IllegalBlockSizeException | InvalidKeyException exp) {
logger.error(exp.getMessage());
} }
} }
public static void decryptFile(String algorithm, SecretKey key, IvParameterSpec iv public static void decryptFile(String algorithm, SecretKey key, IvParameterSpec iv,
, File encryptedFile, File decryptedFile) throws IOException { File encryptedFile, File decryptedFile) throws IOException {
FileInputStream inputStream = null;
FileOutputStream outputStream = null;
try { try {
Cipher cipher = Cipher.getInstance(algorithm); Cipher cipher = Cipher.getInstance(algorithm);
cipher.init(Cipher.DECRYPT_MODE, key, iv); cipher.init(Cipher.DECRYPT_MODE, key, iv);
FileInputStream inputStream = new FileInputStream(encryptedFile); inputStream = new FileInputStream(encryptedFile);
FileOutputStream outputStream = new FileOutputStream(decryptedFile); outputStream = new FileOutputStream(decryptedFile);
byte[] buffer = new byte[64]; byte[] buffer = new byte[64];
int bytesRead; int bytesRead;
while ((bytesRead = inputStream.read(buffer)) != -1) { while ((bytesRead = inputStream.read(buffer)) != -1) {
@ -115,12 +134,13 @@ public class AESUtil {
if (output != null) { if (output != null) {
outputStream.write(output); outputStream.write(output);
} }
} catch (InvalidAlgorithmParameterException | NoSuchAlgorithmException |
NoSuchPaddingException | BadPaddingException |
IllegalBlockSizeException | InvalidKeyException exp) {
LOGGER.error(exp.getMessage());
} finally {
inputStream.close(); inputStream.close();
outputStream.close(); outputStream.close();
} catch (InvalidAlgorithmParameterException | NoSuchAlgorithmException
| NoSuchPaddingException | BadPaddingException
| IllegalBlockSizeException | InvalidKeyException exp) {
logger.error(exp.getMessage());
} }
} }
@ -130,26 +150,25 @@ public class AESUtil {
cipher.init(Cipher.ENCRYPT_MODE, key, iv); cipher.init(Cipher.ENCRYPT_MODE, key, iv);
SealedObject sealedObject = new SealedObject(object, cipher); SealedObject sealedObject = new SealedObject(object, cipher);
return sealedObject; return sealedObject;
} catch (NoSuchAlgorithmException | NoSuchPaddingException } catch (NoSuchAlgorithmException | NoSuchPaddingException |
| InvalidKeyException | InvalidAlgorithmParameterException InvalidKeyException | InvalidAlgorithmParameterException |
| IOException | IllegalBlockSizeException exp) { IOException | IllegalBlockSizeException exp) {
logger.error(exp.getMessage()); LOGGER.error(exp.getMessage());
} }
return null; return null;
} }
public static Serializable decryptObject(String algorithm, SealedObject sealedObject public static Serializable decryptObject(String algorithm, SealedObject sealedObject,
, SecretKey key, IvParameterSpec iv) { SecretKey key, IvParameterSpec iv) {
try { try {
Cipher cipher = Cipher.getInstance(algorithm); Cipher cipher = Cipher.getInstance(algorithm);
cipher.init(Cipher.DECRYPT_MODE, key, iv); cipher.init(Cipher.DECRYPT_MODE, key, iv);
Serializable unsealObject = (Serializable) sealedObject.getObject(cipher); Serializable unsealObject = (Serializable) sealedObject.getObject(cipher);
return unsealObject; return unsealObject;
} catch (NoSuchAlgorithmException | NoSuchPaddingException } catch (NoSuchAlgorithmException | NoSuchPaddingException |
| InvalidKeyException | InvalidAlgorithmParameterException InvalidKeyException | InvalidAlgorithmParameterException |
| IOException | ClassNotFoundException | IllegalBlockSizeException IOException | ClassNotFoundException | IllegalBlockSizeException | BadPaddingException exp) {
| BadPaddingException exp) { LOGGER.error(exp.getMessage());
logger.error(exp.getMessage());
} }
return null; return null;
} }
@ -158,11 +177,12 @@ public class AESUtil {
try { try {
Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding"); Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
cipher.init(Cipher.ENCRYPT_MODE, key, iv); cipher.init(Cipher.ENCRYPT_MODE, key, iv);
return Base64.getEncoder().encodeToString(cipher.doFinal(plainText.getBytes())); return Base64.getEncoder()
} catch (NoSuchAlgorithmException | BadPaddingException .encodeToString(cipher.doFinal(plainText.getBytes()));
| InvalidKeyException | InvalidAlgorithmParameterException } catch (NoSuchAlgorithmException | BadPaddingException |
| NoSuchPaddingException | IllegalBlockSizeException exp) { InvalidKeyException | InvalidAlgorithmParameterException |
logger.error(exp.getMessage()); NoSuchPaddingException | IllegalBlockSizeException exp) {
LOGGER.error(exp.getMessage());
} }
return null; return null;
} }
@ -171,11 +191,12 @@ public class AESUtil {
try { try {
Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5PADDING"); Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5PADDING");
cipher.init(Cipher.DECRYPT_MODE, key, iv); cipher.init(Cipher.DECRYPT_MODE, key, iv);
return new String(cipher.doFinal(Base64.getDecoder().decode(cipherText))); return new String(cipher.doFinal(Base64.getDecoder()
} catch (NoSuchAlgorithmException | BadPaddingException .decode(cipherText)));
| InvalidKeyException | InvalidAlgorithmParameterException } catch (NoSuchAlgorithmException | BadPaddingException |
| NoSuchPaddingException | IllegalBlockSizeException exp) { InvalidKeyException | InvalidAlgorithmParameterException |
logger.error(exp.getMessage()); NoSuchPaddingException | IllegalBlockSizeException exp) {
LOGGER.error(exp.getMessage());
} }
return null; return null;
} }