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Essay Galaxy - Cryptography
Cryptography is the science of encoding a message into a form that is unreadable and making sure only the proper people are capable of decoding the message back into its original form. This is usually done by using an encryption algorithm and a decryption algorithm (these two are often the same) and very often a secret key. Some of the early cryptographic systems did not use a key but instead kept the algorithm itself secret. The message sender uses the encryption algorithm and the key to encode the message, and then sends it to the receiver. The receiver then uses the decryption algorithm and the key to turn back the encrypted message into its original form and read it.
If the message is intercepted on the way by a third party, they will only have unreadable data and will have gained nothing, unless they can figure out the decryption algorithm and obtain th....
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Number Of Pages: 11 |
Number Of Words: 3020 |
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