RSA

1、windows安装openssl

https://blog.csdn.net/sunhuansheng/article/details/82218678

2、从.pfx文件中提取私钥和证书

https://www.php.cn/windows-416177.html

3、RSA加密与解密(Java实现)

https://blog.csdn.net/qy20115549/article/details/83105736

4、Base64编码与Java版本实现

https://www.jianshu.com/p/79ecc613ed21

5、RSA/RSA2 进行签名和验签

https://www.cnblogs.com/chinazhou-wang/p/6728327.html

6、获取public.cer公钥

import java.io.FileInputStream;
import java.security.PublicKey;
import java.security.cert.CertificateFactory;
import java.security.cert.X509Certificate;

import org.apache.commons.codec.binary.Base64;

public class GetPublicKeyFromCer {
    
    public static String getPublicKey() {
        try {
            CertificateFactory certFactory = CertificateFactory.getInstance("X.509");
            X509Certificate cert = (X509Certificate) certFactory.generateCertificate(new FileInputStream("D:/test/public.cer")); // cer证书路径
            PublicKey publicKey = cert.getPublicKey();
            String pubKey = new String(Base64.encodeBase64(publicKey.getEncoded()));
            return pubKey;
        } catch (Exception e) {
            e.printStackTrace();
        }
        
        return null;
    }
}

 7、AES、DES算法比较、区别

浅析DES与AES、RSA三种典型加密算法的比较

对加密的了解（DES/3DES/AES区别 ）

加密算法(DES,AES,RSA,MD5,SHA1,Base64)比较和项目应用

8、MD5、SHA1区别

https://www.cnblogs.com/fireway/p/5860622.html