Wednesday, October 17, 2012

Difference between encoding and encryption?

Interesting to be suddenly being questioned by someone on this topic.
Here is a simple form to the answer.

    Encoding is changing the way data is presented
      - using a public, generally-understood, and (usually) low-overhead method
      - for the purpose of allowing the data to survive intact and easily recoverable after some sort of transfer.
    Encryption is changing the way data is presented
      - using a method or a key that is restricted and (as it happens) often computationally intensive
      - for the purpose of shielding the data from some people while making it available to others.

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