CRYPTOGRAPHY SUPPLEMENT

Math 119

For all problems (1-4), use the correspondence

The following matrix A =  will be the encoder matrix for problems 1 and 2.

1.      Encode the phrase “Pistol Pete”

2.      Decode the following message encoded by A:  43  36  95  75  19  17  24  23  71  57  74  59

The following matrix A =  will be the encoder matrix for problems 3 and 4.

3.      Encode the phrase “ASU Sun Devils”

4.      Decode the following message encoded by A:  26  40  29  22  27  23  53  67  72

(Hint: Use #16 from 2.6)