internal MachineSignature Decriptar(String cadenaCifrada)
{
string textoPlano = null;
using (AesManaged aes = new AesManaged()) {
ICryptoTransform decryptor = aes.CreateDecryptor(this.llave, this.vector);
using (MemoryStream ms = new MemoryStream(Convert.FromBase64String(cadenaCifrada))) {
using (CryptoStream cs = new CryptoStream(ms, decryptor, CryptoStreamMode.Read)) {
using (StreamReader reader = new StreamReader(cs))
textoPlano = reader.ReadToEnd();
}
}
}
return(MachineSignature.CrearDesdeCadena(textoPlano));
}
internal String GeneraFirmaDeMachineSignature(MachineInfo machineInfo)
{
Guid id = Guid.NewGuid();
DateTime fechaDeFirma = DateTime.Now;
DateTime fechaDeExpiracion = fechaDeFirma.AddDays(this.VigenciaDeFirmaEnDias);
var m = new MachineSignature(
id: id,
machineInfo: machineInfo,
signDate: fechaDeFirma,
expirationDate: fechaDeExpiracion
);
return(GeneraFirma(m.ToString()));
}
