如何使用 java sun security 从 .p12 文件中提取私钥

Question

这是我的程序。我收到错误“打开密钥文件时出错”。请帮助我哪里出错了。

import java.io.FileInputStream;
import java.security.KeyStore;
import java.security.KeyStoreException;
import java.security.PrivateKey;
import java.util.Base64;

public class ExtractionClass {
    public static void main(String args[]) {
       String  p12Password = "PassWord";
       try{
       FileInputStream file = new FileInputStream("C:/Users/Aarti_Jangid/Desktop/p12/certChain.p12");
       System.out.println("FILE "+ file);
       KeyStore keystore = KeyStore.getInstance("PKCS12", "SunJSSE");
       keystore.load(file, p12Password.toCharArray());
       String alias = keystore.aliases().nextElement(); 
       PrivateKey key = (PrivateKey)keystore.getKey(alias, p12Password.toCharArray());
       System.out.println(Base64.getEncoder().encodeToString(key.getEncoded()));
       } catch(KeyStoreException kse) {
           kse.printStackTrace();
           System.err.println("Error getting the key");  
       } catch (Exception e) {
              System.err.println("Error opening the key file");
              e.printStackTrace();
     }
   }
}

Answer 1

我假设你的堆栈跟踪是：

Error opening registry key 'C:/Users/Aarti_Jangid/Desktop/p12/certChain.p12'
Error: could not find Java.dll
Error: could not find Java 2 Runtime Environment

如果是这样，试试这个：Java Error opening registry key