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A Gentle Introduction To Cryptography |
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Source: WebProNews - Posted by Benjamin D. Thomas
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Let us take the example of scrambling an egg. First, crack the shell, pour the contents into a bowl and beat the contents vigorously until you achieved the needed result - well, a scrambled egg. This action of mixing the molecules of the egg is encryption. Since the molecules are mixed-up, we say the egg has achieved a higher state of entropy (state of randomness). To return the scrambled egg to its original form (including uncracking the shell) is decryption. Impossible?
However, if we substitute the word "egg" and replace it with "number", "molecules" with "digits", it is POSSIBLE. This, my friend, is the exciting world of cryptography (crypto for short). It is a new field dominated by talented mathematicians who uses vocabulary like "non-linear polynomial relations", "overdefined systems of multivariate polynomial equations", "Galois fields", and so forth. These cryptographers uses language that mere mortals like us cannot pretend to understand.
Read this full article at WebProNews
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