PHP 3DES 如何兼容 JAVA?

本人PHP一枚,最近对接JAVA,在使用3DES加密算法时发现加密的结果对不上,所以来请教一下。

相关代码

package com.test.utils;
import javax.crypto.Cipher;
import javax.crypto.SecretKey;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.DESedeKeySpec;
import java.security.SecureRandom;
import java.security.spec.KeySpec;
/**
 * Des3工具类
 */
public class Des3Utils {
    /**
     * @Description: DES3 解密
     * @param key
     * @param src
     * @return String
     */
    public static String decryptEde(String key, String src) {
        String plainText = null;
        try {
            byte[] keyBytes = new byte[24];
            asciiToBcdBytes(key, keyBytes, Math.min(32, key.length()) / 2);

            for (int i = 0; i < 8; ++i)
                keyBytes[16 + i] = keyBytes[i];

            // 从原始密匙数据创建一个DESKeySpec对象
            KeySpec dks = new DESedeKeySpec(keyBytes);

            // 创建一个密匙工厂,然后用它把DESKeySpec对象转换成
            // 一个SecretKey对象
            SecretKey secKey = SecretKeyFactory.getInstance("DESede").generateSecret(dks);

            // Cipher对象实际完成解密操作
            Cipher cipher = Cipher.getInstance("DESede/ECB/NoPadding");

            // DES算法要求有一个可信任的随机数源
            SecureRandom sr = new SecureRandom();

            // 用密匙初始化Cipher对象
            cipher.init(Cipher.DECRYPT_MODE, secKey, sr);

            int count = (src.length() + 1) / 2;
            byte[] inputBytes = new byte[count];
            asciiToBcdBytes(src, inputBytes, count);

            // 正式执行解密操作
            byte[] decryptBytes = cipher.doFinal(inputBytes);

            int olen = decryptBytes.length - 1;
            for (; decryptBytes[olen] == 0 && olen >= 0; --olen) {
            }

            plainText = new String(decryptBytes, 0, olen + 1);
        } catch (Exception e) {
            e.printStackTrace();
        }

        return plainText;
    }

    private static void asciiToBcdBytes(String str, byte[] hex, int count) {
        byte[] inputBytes = str.getBytes();
        for (int i = 0, j = 0; j < inputBytes.length && i < count; ++i) {
            byte v = inputBytes[j];
            ++j;
            if (v <= 0x39){
                hex[i] = (byte) (v - 0x30);
            } else {
                hex[i] = (byte) (v - 0x41 + 10);
            }

            hex[i] <<= 4;

            if (j >= inputBytes.length) {
                break;
            }

            v = inputBytes[j];
            ++j;

            if (v <= 0x39) {
                hex[i] += (byte) (v - 0x30);
            } else {
                hex[i] += (byte) (v - 0x41 + 10);
            }
        }
    }

    /**
     * @Description: DES3 加密
     * @param key
     * @param src
     * @return String
     */
    public static String encryptEde(String key, String src) {
        String plainText = null;
        try {
            byte[] keyBytes = new byte[24];
            asciiToBcdBytes(key, keyBytes, Math.min(32, key.length()) / 2);

            for (int i = 0; i < 8; ++i)
                keyBytes[16 + i] = keyBytes[i];

            // 从原始密匙数据创建一个DESKeySpec对象
            KeySpec dks = new DESedeKeySpec(keyBytes);

            // 创建一个密匙工厂,然后用它把DESKeySpec对象转换成
            // 一个SecretKey对象
            SecretKey secKey = SecretKeyFactory.getInstance("DESede").generateSecret(dks);

            // Cipher对象实际完成解密操作
            Cipher cipher = Cipher.getInstance("DESede/ECB/NoPadding");

            // DES算法要求有一个可信任的随机数源
            SecureRandom sr = new SecureRandom();

            // 用密匙初始化Cipher对象
            cipher.init(Cipher.ENCRYPT_MODE, secKey, sr);

            byte[] srcBytes = src.getBytes("UTF-8");
            int srcLen = srcBytes.length;
            int encLen = ((srcLen % 8) == 0) ? srcLen : ((srcLen / 8 + 1) * 8);

            byte[] encBytes = new byte[encLen];
            System.arraycopy(srcBytes, 0, encBytes, 0, srcLen);

            // 正式执行解密操作
            byte[] encryptBytes = cipher.doFinal(encBytes);
            plainText = bcdBytesToAscii(encryptBytes, encLen);
        } catch (Exception e) {
            e.printStackTrace();
        }

        return plainText;
    }

    private static String bcdBytesToAscii(byte[] hex, int count) {
        byte[] ascii = new byte[2 * count];
        int t;
        for (int i = 0; i < count; i++) {
            t = hex[i] & 0xf0;
            t = t >> 4;
            if (t <= 9)
                t += '0';
            else if (t >= 10 && t <= 15)
                t += 'A' - 10;
            else
                t = '0';
            ascii[2 * i] = (byte) t;

            t = hex[i] & 0x0f;
            if (t <= 9)
                t += '0';
            else if (t >= 10 && t <= 15)
                t += 'A' - 10;
            else
                t = '0';
            ascii[2 * i + 1] = (byte) t;
        }

        return (new String(ascii));
    }
}

本人目前使用的是 php 3DES加密如何兼容Java 中的代码。

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