Cryptography and Security - Assignment 2 - CSC8419

CSC8419
Assignment 2
Cryptography and Security
Student Name:
Student Number:

Contents
Task 1...............................................................................................................................................2
Task 2...............................................................................................................................................4
Task4................................................................................................................................................8
Introduction..................................................................................................................................8
Content.........................................................................................................................................8
Conclusion.................................................................................................................................10
Reference...................................................................................................................................11
1

Task 1
Debian Http server can be used to download the Debian DVD ISO image file. A link is provided
to download this file that is https://goo.gl/8CNeyc. It is requiring verifying the SHA-1 algorithm
for encrypted the signature.
 In the first step, it requires listing the directory files for the confirmation that all the files
are at correct place.
 The second step, the terms of the SHA-1 need the encrypted signature so check the
signature by using the GNU Privacy Guard.
o The public key is not available during the running time of the command. It is
required to get the public key through the ID = ‘6294BE9B’. This Id is used to
retrieve the public key.
 The third step, the public key can be download with the id = ‘6294BE9B’ for the server
of the Debian key ring.
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 In this step, verify the signature for SHA-1.
The authenticity of Debian DVD image is confirmed by the “Good signature from
Debian CD signature key that is <[e-mail]>". Use the fingerprints:
DF9B9C49EAA929843258, that are generated and compare with
http://www.debian.org/CD/verify. The result of this comparison shows:
 In the last step, verify the ISO image with its content and check the checksum of with
file.
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