“Either the soul is inmortal and we shall not die, or it perishes with the flesh, and we shall not know then that we are dead. Live, then, as if you were eternal.”
- André Maurois

“Those who desire to give up Freedom in order to gain Security, will not have, nor do they deserve, either one.”
- Thomas Jefferson, Tercer Presidente de los Estados Unidos

“Nearly all men can stand adversity, but if you want to test a man’s character, give him power.”
- Abraham Lincoln, Dieciseisavo Presidente de los Estados Unidos

“My grandfather once told me that there are two kinds of people: those who work and those who take the credit. He told me to try to be in the first group; there was less competition there.”
- Indira Gandhi

“Todo derecho que no lleva consigo un deber, no merece que se luche para defenderlo.”
- M. Ghandi

“La libertad, querido Sancho, es uno de los mas preciosos dones que a los hombres dieron los cielos.”
- Don Quijote de La Mancha

“Contrary to popular belief, Unix is very user friendly. It just happens to be very selective about who it’s friends are.”
- Kyle Hearn

In order to evade mail-relaying, unathorized users try to spoof the e-mail sender address in mail messages. One trick they use consists in making Postfix think the sender belongs to a mail domain in $mydestination (that the message comes from a domain belonging to the list of domains that Postfix considers itself the final destination [...]

Parece ser que las presiones por parte de algunos sectores económicos para que se fabriquen chips de Identificación por Radiofrecuencia a un precio menor, están haciendo que esta polémica tecnoloǵia sea, además, algo insegura al tener que eliminar características que teóricamente los harían más seguros.

Una de las creencias más extendidas, y que más me asusta, es aquella que hace parecer a la firma digital un sustituto infalible de la firma escrita.
Fundamentalmente, la firma digital se apoya en dos conceptos criptográficos:

Funciones criptográficas de clave pública
Las más representativas son RSA (las siglas de Rivest, Shamir y Adleman) y DSA (las siglas [...]