Implementation methods of MD5, MD2 and SHA encryption in Java

This article mainly introduces the relevant information about the implementation methods of encryption in Java (MD5, MD2, SHA). Here are three methods to implement encryption. You can compare them. Friends in need can refer to it

Encryption implementation methods in java (MD5, MD2, SHA)

Example code: The comments are very clear,

import java.security.MessageDigest; 
 
import javax.xml.bind.annotation.adapters.HexBinaryAdapter; 
 
public class Main { 
 
  static String src = "Hello,sahadev!"; 
 
  public static void main(String[] args) { 
    MD5(); 
    MD2(); 
    SHA(); 
  } 
 
  /** 
   * MD5加密 
   */ 
  public static void MD5() { 
    try { 
      // 获取MD5加密工具 
      MessageDigest md = MessageDigest.getInstance("MD5"); 
      // 加密 
      byte[] digest = md.digest(src.getBytes()); 
      // 获取二进制十六进制互转工具 
      HexBinaryAdapter hexBinaryAdapter = new HexBinaryAdapter(); 
      // 将二进制数组转换为十六进制字符串 
      String marshal = hexBinaryAdapter.marshal(digest); 
      // 输出结果 
      System.out.println(marshal); 
    } catch (Exception e) { 
      e.printStackTrace(); 
    } 
  } 
 
  /** 
   * MD2加密 
   */ 
  public static void MD2() { 
    try { 
      // 获取MD2加密工具 
      MessageDigest md = MessageDigest.getInstance("MD2"); 
      // 加密 
      byte[] digest = md.digest(src.getBytes()); 
      // 获取二进制十六进制互转工具 
      HexBinaryAdapter hexBinaryAdapter = new HexBinaryAdapter(); 
      // 将二进制数组转换为十六进制字符串 
      String marshal = hexBinaryAdapter.marshal(digest); 
      // 输出结果 
      System.out.println(marshal); 
    } catch (Exception e) { 
      e.printStackTrace(); 
    } 
  } 
 
  public static void SHA() { 
    try { 
      // 获取MD2加密工具 
      MessageDigest md = MessageDigest.getInstance("SHA"); 
      // 加密 
      byte[] digest = md.digest(src.getBytes()); 
      // 获取二进制十六进制互转工具 
      HexBinaryAdapter hexBinaryAdapter = new HexBinaryAdapter(); 
      // 将二进制数组转换为十六进制字符串 
      String marshal = hexBinaryAdapter.marshal(digest); 
      // 输出结果 
      System.out.println(marshal); 
    } catch (Exception e) { 
      e.printStackTrace(); 
    } 
  } 
 
}

Output result:

MD5 : 8FC69C57ACC2258C7B4A9D39DC4C940B 
MD2 : 9EAF08289903A29C3C58D2AAA25BD83D 
SHA : 1B1330BFC6257FC9F4B4ED5CB605FA4109608CCA

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