数字证书

利用openssl 生成p12文件，

生成**对 openssl genrsa -out private.key 2048

 

证书申请     openssl req -new -out root.csr -key private.key

 

自签署证书 openssl x509 -req -in root.csr -out cert.pem -signkey private.key -days 3650

其它证书用CA来签署 openssl x509 -req -in root.csr -out cert.pem -CA cert.pem -CAkey private.key -CAcreateserial -days 3650

 

合成p12文件 openssl pkcs12 -export -clcerts -in cert.pem -inkey private.key -out root.p12

 

利用openssl生成pfx文件

                        openssl genrsa -out private.key 2048

                        openssl req -new -x509 -days 3650 -key private.key -out ca.crt

生成pfx文件     openssl pkcs12 -export -out server.pfx -inkey private.key -in ca.crt

 

package com.test;

import java.io.File;
import java.io.FileInputStream;
import java.security.KeyStore;
import java.security.PrivateKey;
import java.security.PublicKey;
import java.security.cert.Certificate;
import java.util.Enumeration;
public class PfxTest {

	@SuppressWarnings("resource")
	public static void main(String[] args) {
		try{
			String pfxFileName = "/home/yunix/keytest1/server.pfx";
			String keyStorePwd = "111111";
			File fpkcs12 = null;
			if(pfxFileName !=null) {
				fpkcs12 = new File(pfxFileName);
			}
			
			FileInputStream fis = new FileInputStream(fpkcs12);
			
			KeyStore keyStore = null;
			try{
				keyStore = KeyStore.getInstance("PKCS12");
			}catch(Exception ex) {
				ex.printStackTrace();
				throw new Exception("exception");
			}
			keyStore.load(fis, keyStorePwd.toCharArray());
			
			Enumeration<String> e = keyStore.aliases();
            String keyAlias = null;
            if (e.hasMoreElements()) // we are readin just one certificate.
            {
                keyAlias = (String)e.nextElement();
                System.out.println("alias=[" + keyAlias + "]");
            }
			
			PrivateKey prikey = (PrivateKey)keyStore.getKey("1",keyStorePwd.toCharArray());
			System.out.println(prikey);
			Certificate cert = keyStore.getCertificate("1");
			PublicKey pubkey = cert.getPublicKey();
			System.out.println(pubkey);
		}catch(Exception e) {
			e.printStackTrace();
		}

	}

}