Ejecutar una función resumen (hash) por cada línea de un fichero desde Java | Operating systems, scripting, PowerShell and security

Criptografía, Java

import java.io.*;
import java.nio.charset.StandardCharsets;
import java.security.MessageDigest;
import java.security.NoSuchAlgorithmException;
import java.security.Provider;
import java.security.Security;

public class Hash {
    public static void main(String[] args) throws FileNotFoundException {
        String string, hash;
        byte dataBytes[];
        File doc;
        BufferedReader obj;

        try {
            doc = new File("fichero.txt");
            obj = new BufferedReader(new FileReader(doc));
            while ((string = obj.readLine()) != null) {
                hash = get_SHA_512_SecurePassword(string, "123");
                System.out.println("Fichero hasheado en SHA-512  : " + hash);
            }
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

    public static String get_SHA_512_SecurePassword(String passwordToHash, String salt) {
        String generarHash = null;
        try {
            MessageDigest md = MessageDigest.getInstance("SHA-512");
            md.update(salt.getBytes(StandardCharsets.UTF_8));
            byte[] bytes = md.digest(passwordToHash.getBytes(StandardCharsets.UTF_8));
            StringBuilder sb = new StringBuilder();
            for (int i = 0; i < bytes.length; i++) {
                sb.append(Integer.toString((bytes[i] & 0xff) + 0x100, 16).substring(1));
            }
            generarHash = sb.toString();
        } catch (NoSuchAlgorithmException e) {
            e.printStackTrace();
        }
        return generarHash;
    }
}

import java.io.*;

import java.nio.charset.StandardCharsets;

import java.security.MessageDigest;

import java.security.NoSuchAlgorithmException;

import java.security.Provider;

import java.security.Security;

public class Hash {

public static void main(String[] args) throws FileNotFoundException {

String string, hash;

byte dataBytes[];

File doc;

BufferedReader obj;

try {

doc = new File("fichero.txt");

obj = new BufferedReader(new FileReader(doc));

while ((string = obj.readLine()) != null) {

hash = get_SHA_512_SecurePassword(string, "123");

System.out.println("Fichero hasheado en SHA-512 : " + hash);

}

} catch (IOException e) {

e.printStackTrace();

}

public static String get_SHA_512_SecurePassword(String passwordToHash, String salt) {

String generarHash = null;

try {

MessageDigest md = MessageDigest.getInstance("SHA-512");

md.update(salt.getBytes(StandardCharsets.UTF_8));

byte[] bytes = md.digest(passwordToHash.getBytes(StandardCharsets.UTF_8));

StringBuilder sb = new StringBuilder();

for (int i = 0; i < bytes.length; i++) {

sb.append(Integer.toString((bytes[i] & 0xff) + 0x100, 16).substring(1));

}

generarHash = sb.toString();

} catch (NoSuchAlgorithmException e) {

e.printStackTrace();

}

return generarHash;

}

Ejecutar una función resumen (hash) por cada línea de un fichero desde Java (Java, Criptografía)

LIBRO DE POWERSHELL

LO ÚLTIMO

VÍDEOS