Ticket/doc/JAVA参考DEMO(用于参考报文组装和加密示例)/SecurityUtil.java

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// Source code recreated from a .class file by IntelliJ IDEA
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//

package org.example;

import javax.crypto.Cipher;
import javax.crypto.SecretKey;
import javax.crypto.spec.SecretKeySpec;
import java.nio.charset.Charset;
import java.util.Base64;

public class SecurityUtil {
    private static final String ALGORITHM_3DES = "DESede";
    public static final Charset DEFAULT_CHARSET = Charset.forName("UTF-8");

    public SecurityUtil() {
    }

    public static byte[] encrypt3DES(String encryptPassword, byte[] encryptByte) {
        try {
            Cipher cipher = init3DES(encryptPassword, 1);
            byte[] doFinal = cipher.doFinal(encryptByte);
            return doFinal;
        } catch (Exception var4) {
            return null;
        }
    }

    public static String encrypt3DES(String encryptPassword, String encryptStr) {
        try {
            Cipher cipher = init3DES(encryptPassword, 1);
            byte[] enBytes = cipher.doFinal(encryptStr.getBytes(DEFAULT_CHARSET));
            return Base64.getEncoder().encodeToString(enBytes);
        } catch (Exception var4) {
            return null;
        }
    }

    public static byte[] decrypt3DES(String decryptPassword, byte[] decryptByte) {
        try {
            Cipher cipher = init3DES(decryptPassword, 2);
            byte[] doFinal = cipher.doFinal(decryptByte);
            return doFinal;
        } catch (Exception var4) {
            return null;
        }
    }

    public static String decrypt3DES(String decryptPassword, String decryptString) {
        try {
            Cipher cipher = init3DES(decryptPassword, 2);
            byte[] deBytes = cipher.doFinal(Base64.getDecoder().decode(decryptString));
            return new String(deBytes, DEFAULT_CHARSET);
        } catch (Exception var4) {
            return null;
        }
    }

    private static Cipher init3DES(String decryptPassword, int cipherMode) throws Exception {
        SecretKey deskey = new SecretKeySpec(decryptPassword.getBytes(), "DESede");
        Cipher cipher = Cipher.getInstance("DESede");
        cipher.init(cipherMode, deskey);
        return cipher;
    }
}