What is cryptography used for in today's world? In our everday lives?

Question

Please give me some websites too, that answer these questions.

Answer 1

Favorite Answer

Cryptography is the subject, which deals with arts and science of encoding and decoding a message to get rid of intentional tempering.

To know the science and maths in cryptography visit following sites and books -

1> http://www.cacr.math.uwaterloo.ca/hac/

2> http://www.schneier.com/book-applied-toc.html

Some dedicated people towards crypto -

http://www.schneier.com/

http://en.wikipedia.org/wiki/Adi_Shamir

Some you need look closer for understanding and demonstration

1> http://www.cryptool.com/

Answer 2

It's used in online financial transactions. Google on "Secure Sockets Layer" or "SSL" and "https" for insight into that.

Google on "Pretty Good Privacy" or "PGP" for other ideas.

It's also used in wireless networking. Google on something like "wireless networking security"

Wikipedia is often a good source for this level of question, and is usually a top hit on a Google search like those I've recommended.

"Ron Rivest" is a famous cryptography researcher. That's another good place to start.