private string hash(string text)
{
byte[] data = Encoding.Default.GetBytes(text);
byte[] result = new SHA256Managed().ComputeHash(data);
return(string.Join("", result.Select(x => Convert.ToString(x, 2).PadLeft(8, '0'))));
}
/// <summary>
/// 哈希加密，采用256位加密
/// </summary>
/// <param name="source">待加密字符串</param>
/// <returns>加密后字符串</returns>
public static string Encrypt(string source)
{
byte[] passwordAndSaltBytes = System.Text.Encoding.UTF8.GetBytes(source);
byte[] hashBytes = new SHA256Managed().ComputeHash(passwordAndSaltBytes);
return(string.Join(string.Empty, hashBytes.Select(i => i.ToString("x2"))));
}
// ReSharper disable once InconsistentNaming
private static string SHA256(byte[] input)
{
var hash = new SHA256Managed().ComputeHash(input);
return(string.Join("", hash.Select(b => b.ToString("x2")).ToArray()));
}
public void SetPassword(string password)
{
if (this.HashType == HashType.None)
{
this.HashType = HashType.SHA256Salted;
}
switch (this.HashType)
{
case HashType.PlainText:
this.Password = password;
break;
case HashType.SHA256Salted:
byte[] salt = new byte[32];
new RNGCryptoServiceProvider().GetBytes(salt);
byte[] hash = new SHA256Managed().ComputeHash(salt.Concat(Encoding.UTF8.GetBytes(password)).ToArray());
this.Password = string.Join(null, salt.Select(b => b.ToString("x2"))) + string.Join(null, hash.Select(b => b.ToString("x2")));
break;
default:
throw new InvalidOperationException("The account has an unknown hash type.");
}
}
private string EncryptPassword(string password)
{
var bytes = new SHA256Managed().ComputeHash(Encoding.ASCII.GetBytes(password));
return(string.Join("", bytes.Select(x => x.ToString("X2"))));
}
/// <summary>
/// Faz o hash da senha do usuário.
/// </summary>
/// <param name="input"></param>
/// <returns></returns>
public string FazerHashDaSenha(string input)
{
byte[] hash = new SHA256Managed().ComputeHash(Encoding.UTF8.GetBytes(input));
return(string.Concat(hash.Select(b => b.ToString("x2"))));
}
