The Code Book Companion

Step 1

Acting as Alice, choose a secret number and two primes.

Your public key will be generated from this information

Alice's Secret

Prime #1 Prime #2

Alice's public key

Step 3

Bob's Public

Secret Key

Knows

Here we see the only information that is exchanged between Alice and Bob, with Eve acting as an eavesdropper.

Prime #1 Prime #2 Alice's' public key

Bob's Public

Step 2

Acting as Bob, choose a secret key.

Your public key, as well as the shared secret key, will be generated.

Prime #1 Prime #2 Alice's' public key

Bob's Secret

Bob's Public

Secret Key

Success! Both Alice and Bob have come up with the same key, and Eve is still clueless

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