Java KeyPairGenerator getProvider()用法及代碼示例

java.security.KeyPairGenerator類的getProvider()方法用於返回此 key 對生成器對象的提供者。

用法:

public final Provider getProvider()

返回值：此方法返回此 key 對生成器對象的提供者。

下麵是說明getProvider()方法的示例：

示例1:

// Java program to demonstrate 
// getProvider() method 
  
import java.security.*; 
import java.util.*; 
  
public class GFG1 { 
    public static void main(String[] argv) 
    { 
        try { 
            // creating the object of KeyPairGenerator 
            KeyPairGenerator sr = KeyPairGenerator 
                                      .getInstance("RSA"); 
  
            // getting the Provider of the KeyPairGenerator sr 
            // by using method getProvider() 
            Provider provider = sr.getProvider(); 
  
            // printing the provider name 
            System.out.println("Provider name : "
                               + provider.getName()); 
        } 
  
        catch (NoSuchAlgorithmException e) { 
  
            System.out.println("Exception thrown : " + e); 
        } 
    } 
}

輸出：

Provider name : SunRsaSign

示例2:

// Java program to demonstrate 
// getProvider() method 
  
import java.security.*; 
import java.util.*; 
  
public class GFG1 { 
    public static void main(String[] argv) 
    { 
        try { 
            // creating the object of KeyPairGenerator 
            KeyPairGenerator sr = KeyPairGenerator 
                                      .getInstance("DiffieHellman"); 
  
            // getting the Provider of the KeyPairGenerator sr 
            // by using method getProvider() 
            Provider provider = sr.getProvider(); 
  
            // printing the provider name 
            System.out.println("Provider name : "
                               + provider.getName()); 
        } 
  
        catch (NoSuchAlgorithmException e) { 
  
            System.out.println("Exception thrown : " + e); 
        } 
    } 
}

輸出：

Provider name : SunJCE

相關用法

注：本文由純淨天空篩選整理自RohitPrasad3大神的英文原創作品 KeyPairGenerator getProvider() method in Java with Examples。非經特殊聲明，原始代碼版權歸原作者所有，本譯文未經允許或授權，請勿轉載或複製。