Golgappa.net | Golgappa.org | BagIndia.net | BodyIndia.Com | CabIndia.net | CarsBikes.net | CarsBikes.org | CashIndia.net | ConsumerIndia.net | CookingIndia.net | DataIndia.net | DealIndia.net | EmailIndia.net | FirstTablet.com | FirstTourist.com | ForsaleIndia.net | IndiaBody.Com | IndiaCab.net | IndiaCash.net | IndiaModel.net | KidForum.net | OfficeIndia.net | PaysIndia.com | RestaurantIndia.net | RestaurantsIndia.net | SaleForum.net | SellForum.net | SoldIndia.com | StarIndia.net | TomatoCab.com | TomatoCabs.com | TownIndia.com
Interested to Buy Any Domain ? << Click Here >> for more details...

What is quantum cryptography ?

Answer Posted / adu

Quantum cryptography describes the use of quantum mechanical
effects (in particular quantum communication and quantum
computation) to perform cryptographic tasks or to break
cryptographic systems. The use of classical (i.e.,
non-quantum) cryptography to protect against quantum
attackers[clarification needed] is also often considered as
quantum cryptography[citation needed] (in this case, one
also speaks of post-quantum cryptography).

Well-known examples of quantum cryptography are the use of
quantum communication to securely exchange a key (quantum
key distribution) and the (hypothetical) use of quantum
computers that would allow the breaking of various popular
public-key encryption and signature schemes (e.g., RSA and
ElGamal).

The advantage of quantum cryptography lies in the fact that
it allows the completion of various cryptographic tasks that
are proven or conjectured to be impossible using only
classical (i.e., non-quantum) communication (see below for
examples). In particular, quantum mechanics guarantees that
measuring quantum data disturbs that data; this can be used
to detect an adversary's interference with a message.

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is SecurPC ?

1979


Which two cryptographic mechanisms provide confidentiality?

1889


At what point does an attack become practical ?

1773


Explain the meaning of Cryptography.

964


What is the NSA ?

2353


What is IEEE P1363 ?

1890


Who issues certificates and how?

863


Which is easier, factoring or discrete log?

899


What is the current status of DSS?

912


What is a linear feedback shift register?

848


Is cryptography patentable in the U.S.?

859


What is RSAREF?

911


What is the GSS-API ?

2607


How is cryptography applied ?

2491


What is the role of the United States government in cryptography ?

1776