Cledoux Lab 2 2 Answers 102614
LAB #2 – ASSESSMENT WORKSHEET
Implement Hashing and Encryption for Secure
Communications
N442/CIS4456 Section 01 Hacker Techniques, Tools, and Applications
Chris Ledoux
Russ Dulaney
10/12/14
1. The reason why the change occurred because I have altered the Example.txt file, causing it's hash string to change. It is useful to a security analyst because he or she will know if the data has been either altered or tampered with, and also they change to keep authentication and integrity.
2. Both the original and modified hash string values are in hexadecimal form. The reason why the hash values will change when the data is modified is to show that the data has been modified.
3. They could use digital signatures in the email that you are sending out
4. They also could use digital signature plus they could use cryptography along with it
5. MD5sum is a one-way has function that has a 128 bit has for the input. SHA1sum processes up to 512 and adds padding. Sha1sum is better because padding is added to ensure the right numbers.
Implement Hashing and Encryption for Secure
Communications
N442/CIS4456 Section 01 Hacker Techniques, Tools, and Applications
Chris Ledoux
Russ Dulaney
10/12/14
1. The reason why the change occurred because I have altered the Example.txt file, causing it's hash string to change. It is useful to a security analyst because he or she will know if the data has been either altered or tampered with, and also they change to keep authentication and integrity.
2. Both the original and modified hash string values are in hexadecimal form. The reason why the hash values will change when the data is modified is to show that the data has been modified.
3. They could use digital signatures in the email that you are sending out
4. They also could use digital signature plus they could use cryptography along with it
5. MD5sum is a one-way has function that has a 128 bit has for the input. SHA1sum processes up to 512 and adds padding. Sha1sum is better because padding is added to ensure the right numbers.