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/*
 * Copyright (c) 2020-2030 ZHENGGENGWEI(码匠君)
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 * Licensed under the Apache License, Version 2.0 (the "License");
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 *
 * http://www.apache.org/licenses/LICENSE-2.0
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 * Unless required by applicable law or agreed to in writing, software
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 * See the License for the specific language governing permissions and
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 * Eurynome Cloud 采用APACHE LICENSE 2.0开源协议，您在使用过程中，需要注意以下几点：
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package cn.herodotus.engine.rest.crypto.stamp;

import cn.herodotus.engine.cache.jetcache.stamp.AbstractStampManager;
import cn.herodotus.engine.rest.core.constants.RestConstants;
import cn.herodotus.engine.rest.crypto.domain.SecretKey;
import cn.hutool.core.util.RandomUtil;
import cn.hutool.crypto.SecureUtil;
import cn.hutool.crypto.asymmetric.RSA;
import com.alicp.jetcache.Cache;
import com.alicp.jetcache.anno.CacheType;
import com.alicp.jetcache.anno.CreateCache;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

/**
 * Description: 数据加密秘钥缓存 
 *
 * @author : gengwei.zheng
 * @date : 2021/9/30 18:14
 */
public class SecretKeyStampManager extends AbstractStampManager {

    private static final Logger log = LoggerFactory.getLogger(SecretKeyStampManager.class);

    @CreateCache(name = RestConstants.CACHE_NAME_TOKEN_SECURE_KEY, cacheType = CacheType.BOTH)
    protected Cache cache;

    @Override
    protected Cache getCache() {
        return this.cache;
    }

    @Override
    public SecretKey nextStamp(String key) {
        // 生成 AES 秘钥
        String aesKey = RandomUtil.randomStringUpper(16);

        // 生成 RSA 公钥和私钥
        RSA rsa = SecureUtil.rsa();

        SecretKey secretKey = new SecretKey();
        secretKey.setSessionId(key);
        secretKey.setAesKey(aesKey);
        secretKey.setPrivateKeyBase64(rsa.getPrivateKeyBase64());
        secretKey.setPublicKeyBase64(rsa.getPublicKeyBase64());

        log.debug("[Herodotus] |- Generate secret key, value is : [{}]", secretKey);
        return secretKey;
    }

    @Override
    public void afterPropertiesSet() throws Exception {

    }
}