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;
浜岋細(xì)浠庢枃浠朵腑璇誨彇璇佷功
鐢╧eytool灝?keystore涓殑璇佷功鍐欏叆鏂囦歡涓紝鐒跺悗浠庤鏂囦歡涓鍙栬瘉涔︿俊鎭?BR> CertificateFactory cf=CertificateFactory.getInstance("X.509");
FileInputStream in=new FileInputStream("out.csr");
Certificate c=cf.generateCertificate(in);
String s=c.toString();
涓夛細(xì)浠庡瘑閽ュ簱涓洿鎺ヨ鍙栬瘉涔?BR> 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);//alias涓烘潯鐩殑鍒悕
鍥涳細(xì)JAVA紼嬪簭涓樉紺鴻瘉涔︽寚瀹氫俊鎭?BR> System.out.println("杈撳嚭璇佷功淇℃伅:"+c.toString());
System.out.println("鐗堟湰鍙?"+t.getVersion());
System.out.println("搴忓垪鍙?"+t.getSerialNumber().toString(16));
System.out.println("涓諱綋鍚嶏細(xì)"+t.getSubjectDN());
System.out.println("絳懼彂鑰咃細(xì)"+t.getIssuerDN());
System.out.println("鏈夋晥鏈燂細(xì)"+t.getNotBefore());
System.out.println("絳懼悕綆楁硶錛?+t.getSigAlgName());
byte [] sig=t.getSignature();//絳懼悕鍊?
PublicKey pk=t.getPublicKey();
byte [] pkenc=pk.getEncoded();
System.out.println("鍏挜");
for(int i=0;i<pkenc.length;i++)System.out.print(pkenc[i]+",");
浜旓細(xì)JAVA紼嬪簭鍒楀嚭瀵嗛挜搴撴墍鏈夋潯鐩?BR> 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());
鍏細(xì)JAVA紼嬪簭淇敼瀵嗛挜搴撳彛浠?BR> String oldpass="123456";
String newpass="654321";
FileInputStream in=new FileInputStream(".keystore");
KeyStore ks=KeyStore.getInstance("JKS");
ks.load(in,oldpass.toCharArray());
in.close();
FileOutputStream output=new FileOutputStream(".keystore");
ks.store(output,newpass.toCharArray());
output.close();
涓冿細(xì)JAVA紼嬪簭淇敼瀵嗛挜搴撴潯鐩殑鍙ｄ護(hù)鍙?qiáng)娣诲姞鏉＄?BR> FileInputStream in=new FileInputStream(".keystore");
KeyStore ks=KeyStore.getInstance("JKS");
ks.load(in,storepass.toCharArray());
Certificate [] cchain=ks.getCertificate(alias);鑾峰彇鍒悕瀵瑰簲鏉＄洰鐨勮瘉涔﹂摼
PrivateKey pk=(PrivateKey)ks.getKey(alias,oldkeypass.toCharArray());鑾峰彇鍒悕瀵瑰簲鏉＄洰鐨勭閽?BR> ks.setKeyEntry(alias,pk,newkeypass.toCharArray(),cchain);鍚戝瘑閽ュ簱涓坊鍔犳潯鐩?BR> 絎竴涓弬鏁版寚瀹氭墍娣誨姞鏉＄洰鐨勫埆鍚嶏紝鍋囧浣跨敤宸插瓨鍦ㄥ埆鍚嶅皢瑕嗙洊宸插瓨鍦ㄦ潯鐩紝浣跨敤鏂板埆鍚嶅皢澧炲姞涓涓柊鏉＄洰錛岀浜屼釜鍙傛暟涓烘潯鐩殑縐侀挜錛岀涓変釜涓鴻緗殑鏂板彛浠わ紝絎洓涓負(fù)璇ョ閽ョ殑鍏挜鐨勮瘉涔﹂摼
FileOutputStream output=new FileOutputStream("another");
ks.store(output,storepass.toCharArray())灝唊eystore瀵硅薄鍐呭鍐欏叆鏂版枃浠?/P>
鍏細(xì)JAVA紼嬪簭媯楠屽埆鍚嶅拰鍒犻櫎鏉＄洰
FileInputStream in=new FileInputStream(".keystore");
KeyStore ks=KeyStore.getInstance("JKS");
ks.load(in,storepass.toCharArray());
ks.containsAlias("sage");媯楠屾潯鐩槸鍚﹀湪瀵嗛挜搴撲腑錛屽瓨鍦ㄨ繑鍥瀟rue
ks.deleteEntry("sage");鍒犻櫎鍒悕瀵瑰簲鐨勬潯鐩?BR> FileOutputStream output=new FileOutputStream(".keystore");
ks.store(output,storepass.toCharArray())灝唊eystore瀵硅薄鍐呭鍐欏叆鏂囦歡,鏉＄洰鍒犻櫎鎴愬姛
涔?jié)锛?xì)JAVA紼嬪簭絳懼彂鏁板瓧璇佷功
錛?錛変粠瀵嗛挜搴撲腑璇誨彇CA鐨勮瘉涔?BR> FileInputStream in=new FileInputStream(".keystore");
KeyStore ks=KeyStore.getInstance("JKS");
ks.load(in,storepass.toCharArray());
java.security.cert.Certificate c1=ks.getCertificate("caroot");
錛?錛変粠瀵嗛挜搴撲腑璇誨彇CA鐨勭閽?BR> PrivateKey caprk=(PrivateKey)ks.getKey(alias,cakeypass.toCharArray());
錛?錛変粠CA鐨勮瘉涔︿腑鎻愬彇絳懼彂鑰呯殑淇℃伅
byte[] encod1=c1.getEncoded(); 鎻愬彇CA璇佷功鐨勭紪鐮?BR> X509CertImpl cimp1=new X509CertImpl(encod1); 鐢ㄨ緙栫爜鍒涘緩X509CertImpl綾誨瀷瀵硅薄
X509CertInfo cinfo1=(X509CertInfo)cimp1.get(X509CertImpl.NAME+"."+X509CertImpl.INFO); 鑾峰彇X509CertInfo瀵硅薄
X500Name issuer=(X500Name)cinfo1.get(X509CertInfo.SUBJECT+"."+CertificateIssuerName.DN_NAME); 鑾峰彇X509Name綾誨瀷鐨勭鍙戣呬俊鎭?BR> 錛?錛夎幏鍙栧緟絳懼彂鐨勮瘉涔?BR> CertificateFactory cf=CertificateFactory.getInstance("X.509");
FileInputStream in2=new FileInputStream("user.csr");
java.security.cert.Certificate c2=cf.generateCertificate(in);
錛?錛変粠寰呯鍙戠殑璇佷功涓彁鍙栬瘉涔︿俊鎭?BR> byte [] encod2=c2.getEncoded();
X509CertImpl cimp2=new X509CertImpl(encod2); 鐢ㄨ緙栫爜鍒涘緩X509CertImpl綾誨瀷瀵硅薄
X509CertInfo cinfo2=(X509CertInfo)cimp2.get(X509CertImpl.NAME+"."+X509CertImpl.INFO); 鑾峰彇X509CertInfo瀵硅薄
錛?錛夎緗柊璇佷功鏈夋晥鏈?BR> Date begindate=new Date(); 鑾峰彇褰撳墠鏃墮棿
Date enddate=new Date(begindate.getTime()+3000*24*60*60*1000L); 鏈夋晥鏈熶負(fù)3000澶?BR> CertificateValidity cv=new CertificateValidity(begindate,enddate); 鍒涘緩瀵硅薄
cinfo2.set(X509CertInfo.VALIDITY,cv); 璁劇疆鏈夋晥鏈?BR> 錛?錛夎緗柊璇佷功搴忓垪鍙?BR> int sn=(int)(begindate.getTime()/1000); 浠ュ綋鍓嶆椂闂翠負(fù)搴忓垪鍙?BR> CertificateSerialNumber csn=new CertificateSerialNumber(sn);
cinfo2.set(X509CertInfo.SERIAL_NUMBER,csn);
錛?錛夎緗柊璇佷功絳懼彂鑰?BR> cinfo2.set(X509CertInfo.ISSUER+"."+CertificateIssuerName.DN_NAME,issuer);搴旂敤絎笁姝ョ殑緇撴灉
錛?錛夎緗柊璇佷功絳懼悕綆楁硶淇℃伅
AlgorithmId algorithm=new AlgorithmId(AlgorithmId.md5WithRSAEncryption_oid);
cinfo2.set(CertificateAlgorithmId.NAME+"."+CertificateAlgorithmId.ALGORITHM,algorithm);
錛?0錛夊垱寤鴻瘉涔﹀茍浣跨敤CA鐨勭閽ュ鍏剁鍚?BR> X509CertImpl newcert=new X509CertImpl(cinfo2);
newcert.sign(caprk,"MD5WithRSA"); 浣跨敤CA縐侀挜瀵瑰叾絳懼悕
錛?1錛夊皢鏂拌瘉涔﹀啓鍏ュ瘑閽ュ簱
ks.setCertificateEntry("lf_signed",newcert);
FileOutputStream out=new FileOutputStream("newstore");
ks.store(out,"newpass".toCharArray()); 榪欓噷鏄啓鍏ヤ簡鏂扮殑瀵嗛挜搴擄紝涔熷彲浠ヤ嬌鐢ㄧ涓冩潯鏉ュ鍔犳潯鐩?/P>
鍗侊細(xì)鏁板瓧璇佷功鐨勬楠?BR> 錛?錛夐獙璇佽瘉涔︾殑鏈夋晥鏈?BR> 錛坅錛夎幏鍙朮509Certificate綾誨瀷瀵硅薄
CertificateFactory cf=CertificateFactory.getInstance("X.509");
FileInputStream in1=new FileInputStream("aa.crt");
java.security.cert.Certificate c1=cf.generateCertificate(in1);
X509Certificate t=(X509Certificate)c1;
in2.close();
錛坆錛夎幏鍙栨棩鏈?BR> Date TimeNow=new Date();
錛坈錛夋楠屾湁鏁堟?BR> try{
t.checkValidity(TimeNow);
System.out.println("OK");
}catch(CertificateExpiredException e){ //榪囨湡
System.out.println("Expired");
System.out.println(e.getMessage());
}catch((CertificateNotYetValidException e){ //灝氭湭鐢熸晥
System.out.println("Too early");
System.out.println(e.getMessage());}
錛?錛夐獙璇佽瘉涔︾鍚嶇殑鏈夋晥鎬?BR> 錛坅錛夎幏鍙朇A璇佷功
CertificateFactory cf=CertificateFactory.getInstance("X.509");
FileInputStream in2=new FileInputStream("caroot.crt");
java.security.cert.Certificate cac=cf.generateCertificate(in2);
in2.close();
錛坈錛夎幏鍙朇A鐨勫叕閽?BR> PublicKey pbk=cac.getPublicKey();
錛坆錛夎幏鍙栧緟媯楠岀殑璇佷功錛堜笂姝ュ凡緇忚幏鍙栦簡錛屽氨鏄疌1錛?BR> 錛坈錛夋楠岃瘉涔?BR> boolean pass=false;
try{
c1.verify(pbk);
pass=true;
}catch(Exception e){
pass=false;
System.out.println(e);
}
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