sha256 암호화

public class Test {
    
    //sha256 암호화
    public static String sha256(String msg) throws Exception {
        MessageDigest md = MessageDigest.getInstance("SHA-256");
        md.update(msg.getBytes());
        StringBuilder builder = new StringBuilder();
        for (byte b: md.digest()) {
              builder.append(String.format("%02x", b));
        }
        return builder.toString();
    }
    
    public static void main(String[] args) {
        String msg = "123Qwe!!";
        
        try {
            //sha256
            System.out.println(msg+" = "+sha256(msg));

        } catch (Exception e) {
            e.printStackTrace();
        }
        
    }

jmseo.tistory.com/46

[JAVA] SHA-256 암호화 예제