| 提交 | 用户 | 时间 | ||
| 722af2 | 1 | package com.dl.common.encrypt.encryptor; |
| X | 2 | |
| 3 | import cn.hutool.core.util.StrUtil; | |
| 4 | import cn.hutool.crypto.SmUtil; | |
| 5 | import cn.hutool.crypto.symmetric.SM4; | |
| 6 | import com.dl.common.encrypt.EncryptContext; | |
| 7 | import com.dl.common.enums.AlgorithmType; | |
| 8 | import com.dl.common.enums.EncodeType; | |
| 9 | ||
| 10 | import java.nio.charset.StandardCharsets; | |
| 11 | ||
| 12 | /** | |
| 13 | * sm4算法实现 | |
| 14 | * | |
| 15 | * @author 老马 | |
| 16 | * @version 4.6.0 | |
| 17 | */ | |
| 18 | public class Sm4Encryptor extends AbstractEncryptor { | |
| 19 | ||
| 20 | private final SM4 sm4; | |
| 21 | ||
| 22 | public Sm4Encryptor(EncryptContext context) { | |
| 23 | super(context); | |
| 24 | String password = context.getPassword(); | |
| 25 | if (StrUtil.isBlank(password)) { | |
| 26 | throw new IllegalArgumentException("SM4没有获得秘钥信息"); | |
| 27 | } | |
| 28 | // sm4算法的秘钥要求是16位长度 | |
| 29 | if (16 != password.length()) { | |
| 30 | throw new IllegalArgumentException("SM4秘钥长度应该为16位，实际为" + password.length() + "位"); | |
| 31 | } | |
| 32 | this.sm4 = SmUtil.sm4(password.getBytes(StandardCharsets.UTF_8)); | |
| 33 | } | |
| 34 | ||
| 35 | /** | |
| 36 | * 获得当前算法 | |
| 37 | */ | |
| 38 | @Override | |
| 39 | public AlgorithmType algorithm() { | |
| 40 | return AlgorithmType.SM4; | |
| 41 | } | |
| 42 | ||
| 43 | /** | |
| 44 | * 加密 | |
| 45 | * | |
| 46 | * @param value 待加密字符串 | |
| 47 | * @param encodeType 加密后的编码格式 | |
| 48 | */ | |
| 49 | @Override | |
| 50 | public String encrypt(String value, EncodeType encodeType) { | |
| 51 | if (encodeType == EncodeType.HEX) { | |
| 52 | return sm4.encryptHex(value); | |
| 53 | } else { | |
| 54 | return sm4.encryptBase64(value); | |
| 55 | } | |
| 56 | } | |
| 57 | ||
| 58 | /** | |
| 59 | * 解密 | |
| 60 | * | |
| 61 | * @param value 待加密字符串 | |
| 62 | */ | |
| 63 | @Override | |
| 64 | public String decrypt(String value) { | |
| 65 | return this.sm4.decryptStr(value); | |
| 66 | } | |
| 67 | } | |
