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:
“Paul loved to sleep with his mother. Sleep is still most perfect, in spite of hygienists, when it is shared with a beloved.”
—D.H. (David Herbert)
“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)
“And yet we constantly reclaim some part of that primal spontaneity through the youngest among us, not only through their sorrow and anger but simply through everyday discoveries, life unwrapped. To see a child touch the piano keys for the first time, to watch a small body slice through the surface of the water in a clean dive, is to experience the shock, not of the new, but of the familiar revisited as though it were strange and wonderful.”
—Anna Quindlen (b. 1952)