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import java.security.*;
import java.io.*;
import
java.util.*;
import java.security.*;
import java.security.cert.*;
import sun.security.x509.*
import java.security.cert.Certificate;
import java.security.cert.CertificateFactory;
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ÓÃkeytool½«.keystoreÖеÄÖ¤ÊéдÈëÎļþÖУ¬È»ºó´Ó¸ÃÎļþÖжÁȡ֤ÊéÐÅÏ¢
CertificateFactory
cf=CertificateFactory.getInstance("X.509");
FileInputStream in=new
FileInputStream("out.csr");
Certificate c=cf.generateCertificate(in);
String s=c.toString();
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String pass="123456";
FileInputStream in=new FileInputStream(".keystore");
KeyStore
ks=KeyStore.getInstance("JKS");
ks.load(in,pass.toCharArray());
java.security.cert.Certificate
c=ks.getCertificate(alias);//aliasΪÌõÄ¿µÄ±ðÃû
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System.out.println("Êä³öÖ¤ÊéÐÅÏ¢:\n"+c.toString());
System.out.println("°æ±¾ºÅ:"+t.getVersion());
System.out.println("ÐòÁкÅ:"+t.getSerialNumber().toString(16));
System.out.println("Ö÷ÌåÃû£º"+t.getSubjectDN());
System.out.println("Ç©·¢Õߣº"+t.getIssuerDN());
System.out.println("ÓÐЧÆÚ£º"+t.getNotBefore());
System.out.println("Ç©ÃûËã·¨£º"+t.getSigAlgName());
byte []
sig=t.getSignature();//Ç©ÃûÖµ
PublicKey pk=t.getPublicKey();
byte []
pkenc=pk.getEncoded();
System.out.println("¹«Ô¿");
for(int
i=0;i<pkenc.length;i++)System.out.print(pkenc[i]+",");
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String pass="123456";
FileInputStream in=new
FileInputStream(".keystore");
KeyStore ks=KeyStore.getInstance("JKS");
ks.load(in,pass.toCharArray());
Enumeration e=ks.aliases();
while(e.hasMoreElements())
java.security.cert.Certificate
c=ks.getCertificate((String)e.nextElement());
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String
oldpass="123456";
String newpass="654321";
FileInputStream in=new
FileInputStream(".keystore");
KeyStore ks=KeyStore.getInstance("JKS");
ks.load(in,oldpass.toCharArray());
in.close();
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class_path
.;D:\Program Files\Java\jdk1.5.0_04\lib\tools.jar;D:\Program Files\Java\jdk1.5.0_04\lib\rt.jar;D:\Program Files\Java\jdk1.5.0_04\lib\dt.jar;
path
D:\Program Files\Java\jdk1.5.0_04\bin;D:\Program Files\Java\jre1.5.0_04\bin
java_home
D:\Program Files\Java\jdk1.5.0_04
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