package com.dl.common.encrypt.encryptor;
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import cn.hutool.core.codec.Base64;
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import cn.hutool.crypto.SmUtil;
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import cn.hutool.crypto.asymmetric.KeyType;
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import cn.hutool.crypto.asymmetric.SM2;
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import com.dl.common.encrypt.EncryptContext;
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import com.dl.common.enums.AlgorithmType;
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import com.dl.common.enums.EncodeType;
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import com.dl.common.utils.StringUtils;
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/**
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* sm2算法实现
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*
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* @author 老马
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* @version 4.6.0
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*/
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public class Sm2Encryptor extends AbstractEncryptor {
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private final SM2 sm2;
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public Sm2Encryptor(EncryptContext context) {
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super(context);
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String privateKey = context.getPrivateKey();
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String publicKey = context.getPublicKey();
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if (StringUtils.isAnyEmpty(privateKey, publicKey)) {
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throw new IllegalArgumentException("SM2公私钥均需要提供,公钥加密,私钥解密。");
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}
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this.sm2 = SmUtil.sm2(Base64.decode(privateKey), Base64.decode(publicKey));
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}
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/**
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* 获得当前算法
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*/
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@Override
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public AlgorithmType algorithm() {
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return AlgorithmType.SM2;
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}
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/**
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* 加密
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*
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* @param value 待加密字符串
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* @param encodeType 加密后的编码格式
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*/
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@Override
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public String encrypt(String value, EncodeType encodeType) {
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if (encodeType == EncodeType.HEX) {
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return sm2.encryptHex(value, KeyType.PublicKey);
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} else {
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return sm2.encryptBase64(value, KeyType.PublicKey);
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}
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}
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/**
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* 解密
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*
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* @param value 待加密字符串
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*/
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@Override
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public String decrypt(String value) {
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return this.sm2.decryptStr(value, KeyType.PrivateKey);
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}
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}
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