76 lines
2.3 KiB
Java
76 lines
2.3 KiB
Java
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package com.ruoyi.database.util;
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import org.apache.commons.codec.binary.Base64;
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import javax.crypto.Cipher;
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import javax.crypto.spec.IvParameterSpec;
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import javax.crypto.spec.SecretKeySpec;
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import java.security.MessageDigest;
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public class EncryptUtils {
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//AES秘钥与偏移量
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private static final String AESKEY = "1234567891234567";
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private static final String INITVECTOR = "1234567891234567";
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//MD5签名Token
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private static final String MD5TOKEN = "123456789";
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//AES加密 "UTF-8"
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public static String encrypt(String value,String charset) {
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try {
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IvParameterSpec iv = new IvParameterSpec(INITVECTOR.getBytes("UTF-8"));
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SecretKeySpec skeySpec = new SecretKeySpec(AESKEY.getBytes(charset), "AES");
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Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5PADDING");
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cipher.init(Cipher.ENCRYPT_MODE, skeySpec, iv);
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byte[] encrypted = cipher.doFinal(value.getBytes());
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return Base64.encodeBase64String(encrypted);
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} catch (Exception e) {
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e.printStackTrace();
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}
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return null;
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}
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//AES解密 "UTF-8"
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public static String decrypt(String encrypted,String charset) {
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try {
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IvParameterSpec iv = new IvParameterSpec(INITVECTOR.getBytes("UTF-8"));
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SecretKeySpec skeySpec = new SecretKeySpec(AESKEY.getBytes(charset), "AES");
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Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5PADDING");
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cipher.init(Cipher.DECRYPT_MODE, skeySpec, iv);
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byte[] original = cipher.doFinal(Base64.decodeBase64(encrypted));
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return new String(original,charset);
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} catch (Exception e) {
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e.printStackTrace();
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}
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return null;
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}
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//MD5签名
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public static String getMd5(String plainText) {
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try {
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MessageDigest md = MessageDigest.getInstance("MD5");
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md.update(plainText.getBytes());
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byte b[] = md.digest();
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int i;
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StringBuffer buf = new StringBuffer("");
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for (int offset = 0; offset < b.length; offset++) {
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i = b[offset];
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if (i < 0)
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i += 256;
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if (i < 16)
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buf.append("0");
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buf.append(Integer.toHexString(i));
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}
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// 32位加密
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return buf.toString();
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} catch (Exception e) {
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e.printStackTrace();
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}
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return null;
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}
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}
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