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[英]Is length of Digital Signature is digital token(digital certificate) dependent?
[英]Digital Signature Certificate set issuer name
通过使用java x509certificate,我正在生成p12证书。 对证书进行数字签名后,其显示的主题和颁发者相同。 任何人都可以帮助我将“主题”设置为我的名字并将“发行人”设置为公司名称吗?
P12文件本身与发行人和主题相同。
下面是我用于生成证书的代码
package com.dynamic;
import java.io.FileOutputStream;
import java.io.IOException;
import java.security.InvalidKeyException;
import java.security.Key;
import java.security.KeyStore;
import java.security.NoSuchAlgorithmException;
import java.security.NoSuchProviderException;
import java.security.Principal;
import java.security.SignatureException;
import java.security.cert.CertificateException;
import java.security.cert.X509Certificate;
import java.util.logging.Level;
import java.util.logging.Logger;
import sun.security.x509.CertAndKeyGen;
import sun.security.x509.X500Name;
public class Dynamic {
public static void main(String[] args) {
try{
Dynamic di=new Dynamic();
di.createPFXFile();
} catch (Exception ex){
ex.printStackTrace();
}
}
public boolean createPFXFile() throws IOException, NoSuchAlgorithmException, CertificateException, InvalidKeyException, SignatureException, NoSuchProviderException
{
boolean flag=false;
try {
X509Certificate cert=null;
KeyStore keyStore = KeyStore.getInstance("PKCS12");
keyStore.load(null, null);
CertAndKeyGen gen = new CertAndKeyGen("RSA","SHA1WithRSA");
gen.generate(2048);
Key key=gen.getPrivateKey();
System.out.println("private key" + key);
cert=gen.getSelfCertificate(new X500Name("name","ccc","ddd","eee"), (long)365*24*3600);
X509Certificate[] chain = new X509Certificate[1];
chain[0]=cert;
System.out.println("chain[0] :"+chain[0]);
keyStore.setKeyEntry("private", key, "password".toCharArray(), chain);
keyStore.store(new FileOutputStream("D:/"+uid+".p12"), "password".toCharArray());
return flag=true;
} catch (Exception ex) {
Logger.getLogger(Dynamic.class.getName()).log(Level.SEVERE, null, ex);
}
return flag;
}
}
这是自签名证书,因此存在问题。 要解决此问题,请先创建一个CA证书(可以自签名),然后使用CA对您的证书进行签名。
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