85 lines
2.4 KiB
Java
85 lines
2.4 KiB
Java
package com.ff.base.utils;
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import com.ff.base.exception.base.BaseException;
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import lombok.Data;
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import javax.crypto.*;
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import javax.crypto.spec.DESKeySpec;
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import javax.crypto.spec.IvParameterSpec;
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import javax.crypto.spec.SecretKeySpec;
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import java.nio.charset.StandardCharsets;
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import java.security.InvalidAlgorithmParameterException;
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import java.security.InvalidKeyException;
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import java.security.NoSuchAlgorithmException;
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import java.security.spec.InvalidKeySpecException;
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import java.security.spec.KeySpec;
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import java.util.Base64;
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/**
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* 解密有用
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*
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* @author shi
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* @date 2025/03/24
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*/
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public class DESEncryptUtils {
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/**
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* 给…解密
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*
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* @param inString 字符串中
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* @param key 钥匙
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* @return {@link String }
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* @throws Exception 例外
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*/
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public static String DESEncrypt(String inString, String key) {
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try {
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byte[] encryptKey = key.getBytes(); // encryptKey
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KeySpec keySpec = new DESKeySpec(encryptKey);
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SecretKey myDesKey = SecretKeyFactory.getInstance("DES").generateSecret(keySpec);
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IvParameterSpec iv = new IvParameterSpec(encryptKey);
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KeyGenerator keygenerator = KeyGenerator.getInstance("DES");
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Cipher desCipher;
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// Create the cipher
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desCipher = Cipher.getInstance("DES/CBC/PKCS5Padding");
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// Initialize the cipher for encryption
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desCipher.init(Cipher.ENCRYPT_MODE, myDesKey, iv);
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//sensitive information
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String source = inString;
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byte[] text = source.getBytes();
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System.out.println("Text [Byte Format] : " + text);
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System.out.println("Text : " + new String(text));
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// Encrypt the text
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byte[] textEncrypted = desCipher.doFinal(text);
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String t = Base64.getEncoder().encodeToString(textEncrypted);
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System.out.println("Text Encryted [Byte Format] : " + textEncrypted);
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System.out.println("Text Encryted : " + t);
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// Initialize the same cipher for decryption
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desCipher.init(Cipher.DECRYPT_MODE, myDesKey, iv);
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// Decrypt the text
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byte[] textDecrypted = desCipher.doFinal(textEncrypted);
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System.out.println("Text Decryted : " + new String(textDecrypted));
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return t;
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} catch (Exception e) {
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throw new BaseException("解密失败");
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}
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}
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}
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