Created
October 1, 2017 03:48
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using System; | |
using System.Security.Cryptography; | |
using System.Text; | |
namespace SenhaConsole | |
{ | |
public static class LeituraDeSenha | |
{ | |
public static string LerSenha() | |
{ | |
StringBuilder pw = new StringBuilder(); | |
bool caracterApagado = false; | |
while (true) | |
{ | |
ConsoleKeyInfo cki = Console.ReadKey(true); | |
if (cki.Key == ConsoleKey.Enter) | |
{ | |
Console.WriteLine(); | |
break; | |
} | |
if (deletarTexto(cki)) | |
{ | |
if (pw.Length != 0) | |
{ | |
Console.Write("\b \b"); | |
pw.Length--; | |
caracterApagado = true; | |
} | |
} | |
else | |
{ | |
caracterApagado = false; | |
} | |
if (!caracterApagado && verificarCaracterValido(cki)) | |
{ | |
Console.Write('•'); | |
pw.Append(cki.KeyChar); | |
} | |
} | |
return pw.ToString(); | |
} | |
public static string LerSenhaHashMd5() | |
{ | |
var saida = LerSenha(); | |
return gerarHashMd5(saida); | |
} | |
private static bool verificarCaracterValido(ConsoleKeyInfo tecla) | |
{ | |
if (char.IsLetterOrDigit(tecla.KeyChar) || char.IsPunctuation(tecla.KeyChar) || | |
char.IsSymbol(tecla.KeyChar)) | |
{ | |
return true; | |
} | |
else | |
{ | |
return false; | |
} | |
} | |
private static bool deletarTexto(ConsoleKeyInfo tecla) | |
{ | |
if (tecla.Key == ConsoleKey.Backspace || tecla.Key == ConsoleKey.Delete) | |
return true; | |
else | |
return false; | |
} | |
private static string gerarHashMd5(string input) | |
{ | |
MD5 md5Hash = MD5.Create(); | |
// Converter a String para array de bytes, que é como a biblioteca trabalha. | |
byte[] data = md5Hash.ComputeHash(Encoding.UTF8.GetBytes(input)); | |
// Cria-se um StringBuilder para recompôr a string. | |
StringBuilder sBuilder = new StringBuilder(); | |
// Loop para formatar cada byte como uma String em hexadecimal | |
for (int i = 0; i < data.Length; i++) | |
{ | |
sBuilder.Append(data[i].ToString("x2")); | |
} | |
return sBuilder.ToString(); | |
} | |
} | |
} |
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