Question: Use the Jordan formula provided in the Bach notes to evaluate the size of the keyspace for Hill ciphers based on 4x4 matrices, in Z96.

Use the Jordan formula provided in the Bach notes to evaluate

Use the Jordan formula provided in the Bach notes to evaluate the size of the keyspace for Hill ciphers based on 4x4 matrices, in Z96. (i.e., compute the number of invertible 4x4 matrices in Z96). 9642 09.022 1030 1.296 1017 o 7.56 1021

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