From 6a88e788e7bed0957fc77e06341a2fa6ea7b14ac Mon Sep 17 00:00:00 2001
From: liuhz <9200656762@qq.com>
Date: Fri, 6 Aug 2021 13:05:53 +0800
Subject: [PATCH] update

---
 .../com/ydool/boot/api/util/CodecUtils.java   | 87 +++++++++++++++++++
 1 file changed, 87 insertions(+)
 create mode 100644 src/main/java/com/ydool/boot/api/util/CodecUtils.java

diff --git a/src/main/java/com/ydool/boot/api/util/CodecUtils.java b/src/main/java/com/ydool/boot/api/util/CodecUtils.java
new file mode 100644
index 0000000..0839d94
--- /dev/null
+++ b/src/main/java/com/ydool/boot/api/util/CodecUtils.java
@@ -0,0 +1,87 @@
+package com.ydool.boot.api.util;
+
+import org.apache.commons.codec.DecoderException;
+import org.apache.commons.codec.binary.Hex;
+import org.springframework.util.ObjectUtils;
+
+import javax.crypto.BadPaddingException;
+import javax.crypto.Cipher;
+import javax.crypto.IllegalBlockSizeException;
+import javax.crypto.spec.SecretKeySpec;
+import java.io.UnsupportedEncodingException;
+
+/**
+ * Created with IntelliJ IDEA.
+ * User: liuj
+ * Date: 2020/11/18
+ * Time: 13:27
+ * Description: No Description
+ */
+public class CodecUtils {
+
+	private static Cipher encryptCipher; // 加密cipher
+	private static Cipher decryptChipher; // 解密chipher
+	private static final String ENCODING = "UTF-8";
+
+	static {
+		try {
+			encryptCipher = Cipher.getInstance("AES");
+			decryptChipher = Cipher.getInstance("AES");
+			encryptCipher.init(Cipher.ENCRYPT_MODE, generateAESKey("ydool", ENCODING));
+			decryptChipher.init(Cipher.DECRYPT_MODE, generateAESKey("ydool", ENCODING));
+		} catch (Exception e) {
+			e.printStackTrace();
+		}
+	}
+
+	public static SecretKeySpec generateAESKey(final String key, final String encoding) {
+		try {
+			final byte[] finalKey = new byte[16];
+			int i = 0;
+			for (byte b : key.getBytes(encoding))
+				finalKey[i++ % 16] ^= b;
+			return new SecretKeySpec(finalKey, "AES");
+		} catch (UnsupportedEncodingException e) {
+			throw new RuntimeException(e);
+		}
+	}
+
+	/**
+	 * 加密算法
+	 *
+	 * @param encryptString
+	 * @return
+	 */
+	public static String encrypt(String encryptString) {
+		try {
+			if(encryptString == null) return null;
+			return new String(Hex.encodeHex(encryptCipher.doFinal(encryptString.getBytes(ENCODING)))).toUpperCase();
+		} catch (BadPaddingException e) {
+			throw new RuntimeException(e);
+		} catch (UnsupportedEncodingException e) {
+			throw new RuntimeException(e);
+		} catch (IllegalBlockSizeException e) {
+			throw new RuntimeException(e);
+		}
+	}
+
+	/**
+	 * 解密算法
+	 *
+	 * @param decryptString
+	 * @return
+	 */
+	public static String decrypt(String decryptString) {
+
+		if(ObjectUtils.isEmpty(decryptString)) return null;
+		try {
+			return new String(decryptChipher.doFinal(Hex.decodeHex(decryptString.toCharArray())));
+		} catch (DecoderException nspe) {
+			throw new RuntimeException(nspe);
+		} catch (BadPaddingException nsae) {
+			throw new RuntimeException(nsae);
+		} catch (IllegalBlockSizeException ike) {
+			throw new RuntimeException(ike);
+		}
+	}
+}