Future
The current commercial systems are aimed mainly at governments and corporations with high security requirements. Key distribution by courier is typically used in such cases, where traditional key distribution schemes are not believed to offer enough guarantee. This has the advantage of not being intrinsically distance limited, and despite long travel times the transfer rate can be high due to the availability of large capacity portable storage devices. The major difference of quantum key distribution is the ability to detect any interception of the key, whereas with courier the key security cannot be proven or tested. QKD (Quantum Key Distribution) systems also have the advantage of being automatic, with greater reliability and lower operating costs than a secure human courier network.
Factors preventing wide adoption of quantum key distribution outside high security areas include the cost of equipment, and the lack of a demonstrated threat to existing key exchange protocols. However, with optic fibre networks already present in many countries the infrastructure is in place for a more widespread use.
Read more about this topic: Quantum Key Distribution
Famous quotes containing the word future:
“The danger of the past was that men became slaves. The danger of the future is that men may become robots. True enough, robots do not rebel. But given man’s nature, robots cannot live and remain sane, they become “Golems,” they will destroy their world and themselves because they cannot stand any longer the boredom of a meaningless life.”
—Erich Fromm (1900–1980)
“The yuppie idea of the future ain’t my idea of a future. Your safe car, and home, and job, and all the time rushing between the three—let’s make people feel they can grow up and have some education, some interest in life! That’s what counts!”
—Joe Strummer (b. 1952)
“The future is just as much a condition of the present as is the past. “What shall be and must be is the ground of that which is.””
—Friedrich Nietzsche (1844–1900)