MD5 Lab Practice

Part I

Create two WORD files with different names of your choice but with the same content - write the following text in both files: Computer Forensics MD5 lab practice .
Calculate MD5sum value for each file
Document the value for each file, or leave the MD5 numbers on the screen
Did you receive the same MD5 numbers or different?
Explain your answer.
Answer the following general question: If two files have the same content and different file names, what will be their MD5 values: the same or different?

Create a WORD file and write a text of your choice in this file.

Calculate the MD5sum for this file and document the value

Make a change in the content of the file, that could be observed (you can add a word, or delete the word, for example)

Save the changes

Re-calculate the MD5 value again and document the new value.

Compare two MD5 values: old and new

Did you get the same numbers?

Explain your answer

Answer the following questions: How the observable change in file content is influencing the MD5sum values?

In this part, we will use the Invisible Secrets software
Choose the file with picture or HTML page of your choice.
Calculate the MD5 sum for this file and document the value.
Choose another file (any file will work) and hide it inside the first file.
Delete the original file
Rename the file with the hidden message to have the same name as original file.
Recalculate the MD5sum for a new file.
Did you get the same numbers or different?
Explain your answer?
Answer the questions: How the not observable change in the file content is infuencing the MD5sum value?

Create a WORD file. Write any text of your choice in the file.
Calculate MD5sum and document the value.
RENAME the file without changing the content
Calculate MD5sum again.
Compare the value, did you get the same result? Explain your answer.
Delete the file.
Create the file with the same name as for the first time (nefore RENAIME) and the same content.
Calculate MD5sum again.
Compare the value, did you get the same result? Explain your answer.
Delete the file.
Create the file with the same content, but different name
Calculate MD5sum again.
Compare the value, did you get the same result? Explain your answer.
Write a short summary for this part: exlain how RENAME, and DELETE and RECREATE is influencing the MD5sum values