Shared Secret Keys
Secret-key (symmetric) cryptography requires the initial exchange of a shared key in a manner that is private and integrity-assured. When done right, MITM attack is prevented. However, without the use of public-key cryptography, one may be left with undesirable key-management problems.
Read more about this topic: Key-agreement Protocol
Famous quotes containing the words shared, secret and/or keys:
“When our kids are young, many of us rush out to buy a cute little baby book to record the meaningful events of our young child’s life...But I’ve often thought there should be a second book, one with room to record the moral milestones of our child’s lives. There might be space to record dates she first shared or showed compassion or befriended a new student or thought of sending Grandma a get-well card or told the truth despite its cost.”
—Fred G. Gosman (20th century)
“Oh youth, youth! You don’t worry about anything; you seem to possess all the treasures of the universe—even sorrow gives you pleasure, even grief suits you.... And perhaps the whole secret of your charm lies not in your ability to do everything, but in your ability to think that you will do everything.”
—Ivan Sergeevich Turgenev (1818–1883)
“Thou hast the keys of Paradise, oh just, subtle, and mighty opium!”
—Thomas De Quincey (1785–1859)