What is the difference between asymmetric, symmetric, and quantum encryption?

I know that symmetric encryption is the least secure followed by asymmetric and quantum being the most secure, but can someone please explain the difference between asymmetric, symmetric, and quantum encryption?
Brent JohnsonAsked:
Who is Participating?
I wear a lot of hats...

"The solutions and answers provided on Experts Exchange have been extremely helpful to me over the last few years. I wear a lot of hats - Developer, Database Administrator, Help Desk, etc., so I know a lot of things but not a lot about one thing. Experts Exchange gives me answers from people who do know a lot about one thing, in a easy to use platform." -Todd S.

ozoCommented:
Which is "least secure" or "most secure" can depend on how you use the encryption, what your keys are, and what you want to be secure against, but essentially, symmetric means that if you know how to encrypt, then you will also know how to decrypt, and vice versa.  asymmetric means that ability to go in one direction does not imply ability to go the other direction, and quantum literally refers to the minimum amount of any physical entity involved in an interaction, and generally refers to systems involving wave functions with complex values. When applied to cryptography, such systems can make it impossible to perform a man-in-the-middle attack without detection.  Hypothetically, such systems might also enable the breaking of some kinds of asymmetric encryption that would be impractical using classical computations.
0

Experts Exchange Solution brought to you by

Your issues matter to us.

Facing a tech roadblock? Get the help and guidance you need from experienced professionals who care. Ask your question anytime, anywhere, with no hassle.

Start your 7-day free trial
Giovanni HewardCommented:
Symmetric Encrypt/DecryptAsymmetric Encrypt/Decrypt
0
It's more than this solution.Get answers and train to solve all your tech problems - anytime, anywhere.Try it for free Edge Out The Competitionfor your dream job with proven skills and certifications.Get started today Stand Outas the employee with proven skills.Start learning today for free Move Your Career Forwardwith certification training in the latest technologies.Start your trial today
Encryption

From novice to tech pro — start learning today.