Table 4. Plaintext sensitivity analysis.

Filename	beginning	middle	end	Percentage
book1	49.137	49.134	49.066	49.112
book2	49.030	51.190	49.020	49.013
paper2	51.101	51.116	51.217	51.128
paper3	50.165	51.208	51.184	50.986
progl	49.056	50.487	49.004	51.149
progp	49.139	50.922	50.928	50.996