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Education for all
Cryptography
The coding theory we met yesterday dealt with issues of encoding messages, typically in text format, into a numeric or symbolic format. This was done with an eye on ensuring:
• that the coded message was uniquely decipherable;
• that the coded message wasn’t overlong;
• that the code might contain measures to combat poor transmission.
There was no aspect of encoding the message to make it indecipherable to anyone who intercepted the code. This is the type of problem studied in cryptography.