In 8–10 slides
As youeducate the security staff on cryptographic concepts, you will soon makerecommendations for the tools that will be appropriate for this company.You will address the topic of digital signatures with the staff. Present theconcepts of digital signatures in an 8–10-slide PowerPoint presentation withspeaker notes. The presentation should include an explanation of the topic withexamples. The presentation should cover the following topics:

What propertiesshould a digital signature have?
What is thedifference between direct and arbitrated digital signatures?
What is asuppress-replay attack?
What are theadvantages and disadvantages of using digital signatures?

Be sureto reference all sources using APA format.
In aword document, 3–5 paragraphs
To gaina better understanding of hashing algorithms, download the DOS-based MD5 hashingutility from this Web site. A zipfile will be downloaded, and you will need to unzip the files.
If youprefer, you can download a Windows-based utility–the MD5 & SHA-1 ChecksumUtility–from this Web site.
Completethe following four steps:

Create a filewith some text in it, run the MD5 (or the MD5 & SHA) utility, andrecord your results.
Edit the file,change something in the file, run the MD5 (or the MD5 & SHA) utility,and record your results.
Edit the fileagain, and change the file back to its original contents. Run the MD5 (orthe MD5 & SHA) utility, and record your results.
Create a copy ofthe file, run the utility on both files, and record your results.

In 2–3paragraphs, describe a hashing algorithm, how they work to ensure dataintegrity, and the differences between the MD5 and SHA utilities.
Also,in 1–2 paragraphs, share the results of the exercise. Describe the changes, ifany, to the hash values and under what circumstances the hash valuechanged.
Be sureto document your references using APA format.