Java生成p12证书

本文章使用的环境

jdk1.8，spring-boot2.6.13

一、pom依赖

        <dependency>
            <groupId>org.bouncycastle</groupId>
            <artifactId>bcprov-jdk15on</artifactId>
            <version>1.49</version>
        </dependency>
        <dependency>
            <groupId>org.bouncycastle</groupId>
            <artifactId>bcpkix-jdk15on</artifactId>
            <version>1.49</version>
        </dependency>

二、生成证书代码

package com.lift.bright.pkcs;

import org.bouncycastle.asn1.ASN1ObjectIdentifier;
import org.bouncycastle.asn1.ASN1Primitive;
import org.bouncycastle.asn1.x500.X500Name;
import org.bouncycastle.asn1.x509.*;
import org.bouncycastle.cert.X509CertificateHolder;
import org.bouncycastle.cert.X509v3CertificateBuilder;
import org.bouncycastle.cert.jcajce.JcaX509v3CertificateBuilder;
import org.bouncycastle.jce.provider.BouncyCastleProvider;
import org.bouncycastle.operator.ContentSigner;
import org.bouncycastle.operator.jcajce.JcaContentSignerBuilder;

import java.io.*;
import java.math.BigInteger;
import java.security.*;
import java.security.cert.Certificate;
import java.security.cert.CertificateFactory;
import java.security.cert.X509Certificate;
import java.text.SimpleDateFormat;
import java.util.*;

/**
 * @author bao
 * @date 2024/3/20 16:10
 */
public class Pkcs {
    private static KeyPair getKey() throws NoSuchAlgorithmException {
        // 密钥对 生成器，RSA算法 生成的  提供者是 BouncyCastle
        KeyPairGenerator generator = KeyPairGenerator.getInstance("RSA",  new BouncyCastleProvider());
        generator.initialize(1024);  // 密钥长度 1024
        // 证书中的密钥 公钥和私钥
        KeyPair keyPair = generator.generateKeyPair();
        return keyPair;
    }