Java 签名 getAlgorithm() 方法示例
java 8object oriented programmingprogramming
可以使用 java.security.Signature 类中的 getAlgorithm() 方法获取签名对象的算法名称。
现在让我们看一个例子 −
示例
import java.security.*;
import java.util.*;
public class Main {
public static void main(String[] argv) {
try {
Signature signature = Signature.getInstance("SHA256withRSA");
String algorithm = signature.getAlgorithm();
System.out.println("The Algorithm = " + algorithm);
} catch (NoSuchAlgorithmException e) {
System.out.println("Error!! NoSuchAlgorithmException");
}
}
}
输出
The Algorithm = SHA256withRSA
现在让我们看另一个例子 −
示例
import java.security.*;
import java.util.*;
public class Main {
public static void main(String[] argv) {
try {
Signature signature = Signature.getInstance("SHA1withDSA");
String algorithm = signature.getAlgorithm();
System.out.println("The Algorithm = " + algorithm);
} catch (NoSuchAlgorithmException e) {
System.out.println("Error!! NoSuchAlgorithmException");
}
}
}
输出
The Algorithm = SHA1withDSA
