init version for new gitea

src/main/java/com/saye/hrs/commons/encrypt/EncryptUtil.java

@@ -0,0 +1,68 @@
+package com.saye.hrs.commons.encrypt;
+
+import org.apache.commons.codec.binary.Base64;
+
+import java.io.UnsupportedEncodingException;
+import java.security.MessageDigest;
+import java.security.NoSuchAlgorithmException;
+
+import javax.crypto.Cipher;
+import javax.crypto.spec.IvParameterSpec;
+import javax.crypto.spec.SecretKeySpec;
+
+public class EncryptUtil {
+
+	// AES ecb模式解密  key:秘钥 initVector:偏移量  encrypted：加密内容
+    public static String decrypt(String key,String initVector,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;
+    }
+ 
+    public static void main(String[] args) throws Exception {
+    	System.out.println(decrypt("a6xdabhysfescfbu","encryptionIntVec","oYzamqnnyJ8GG6646PDYBQ=="));
+    }
+    
+    public static String getSHA256Str(String str){
+   	 MessageDigest messageDigest;
+   	 String encodeStr = "";
+   	 try {
+   	  messageDigest = MessageDigest.getInstance("SHA-256");
+   	  messageDigest.update(str.getBytes("UTF-8"));
+   	  encodeStr = byte2Hex(messageDigest.digest());
+   	 } catch (NoSuchAlgorithmException e) {
+   	  e.printStackTrace();
+   	 } catch (UnsupportedEncodingException e) {
+   	  e.printStackTrace();
+   	 }
+   	 return encodeStr;
+   	}
+   	/**
+   	* 将byte转为16进制
+   	* @param bytes
+   	* @return
+   	*/
+   	private static String byte2Hex(byte[] bytes){
+   	 StringBuffer stringBuffer = new StringBuffer();
+   	 String temp = null;
+   	 for (int i=0;i<bytes.length;i++){
+   	  temp = Integer.toHexString(bytes[i] & 0xFF);
+   	  if (temp.length()==1){
+   	  //1得到一位的进行补0操作
+   	  stringBuffer.append("0");
+   	  }
+   	  stringBuffer.append(temp);
+   	 }
+   	 return stringBuffer.toString();
+   	}
+}