Encryption:

Anyone can encrypt, because n and e are public.

To encrypt, convert your message into a set of plaintext numbers P, each less than n.

For each P, compute

[Graphics:Images/index_gr_1.gif]

The numbers C are your ciphertext.

Example:  send the message "cats and dogs"

[Graphics:Images/index_gr_2.gif]
[Graphics:Images/index_gr_3.gif]
[Graphics:Images/index_gr_4.gif]
[Graphics:Images/index_gr_5.gif]
[Graphics:Images/index_gr_6.gif]
[Graphics:Images/index_gr_7.gif]
[Graphics:Images/index_gr_8.gif]
[Graphics:Images/index_gr_9.gif]
[Graphics:Images/index_gr_10.gif]
[Graphics:Images/index_gr_11.gif]

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Converted by Mathematica      March 17, 2001