Computer Science

Obtain the image file alice.bmp from the textbook website.

a. Use a hex editor to hide the information attack at dawn in the file.

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b. Provide a hex edit view showing the bits that were modified and their location in the file, as well as the corresponding unmodified bits.

c. Provide screen snapshots of the original bmp file, as well as the bmp file containing the hidden message.

Obtain the file stego.zip from the textbook website.

a. Use the program stegoRead to extract the hidden file contained in aliceStego.bmp.

b. Use the programs to insert another file into a different (uncompressed) image file and extract the information.

c. Provide screen snapshots of the image file from part b, both with and without the hidden information.

Obtain the file stego. zip from the textbook website.

a. How does the program stego.c hide information in an image file?

b. How could you damage the information hidden in a file without visually damaging the image, assuming the program stego. c was used?

c. How could this information hiding technique be made more resistant to attack?

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