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Week 1 X is not an element of X

We saw in class that the predicate given in this forum title creates some problems for set theory. This paradox was described in a famous letter written just about 1 century ago. Bertrand Russell wrote the letter. Who received it? Why was it important?

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Week 2 Public Key Encryption activity

You should form groups of 1 to 3 for this activity. If you want help finding teammates, just ask.

Your job is to compose a short message to me using my public key (82811395330715389843171661,37).

Also, make your own public key, and provide it in this forum. I'll use it to send you a message.

Your ...

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Digital signatures

Public key encryption also provides the key technology for all-important digital signatures. To produce a digital signature, decide on a short moniker for your group, encode your moniker using your private key, and post this below. (This could be copied by an unscrupulous third party, so in ...

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