https://github.com/roger-29/dat159-crypto

⛓ Cryptography
https://github.com/roger-29/dat159-crypto

cryptography java

Last synced: 10 months ago
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⛓ Cryptography

• Host: GitHub
• URL: https://github.com/roger-29/dat159-crypto
• Owner: roger-29
• License: mit
• Created: 2019-10-05T15:19:01.000Z (over 6 years ago)
• Default Branch: master
• Last Pushed: 2019-11-08T12:20:18.000Z (over 6 years ago)
• Last Synced: 2025-06-08T17:40:30.830Z (about 1 year ago)
• Topics: cryptography, java
• Language: Java
• Size: 2.61 MB
• Stars: 0
• Watchers: 1
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# Cryptography

> DAT159

By Sondre Gjellestad and Arne Molland

## Task 1

After setting up the certificate, the connection works.

![Console](images/task1.png)

![Code](images/task1code.png)

![Wireshark](images/task1wireshark.png)

## Task 3

Here is the result in WireShark.

![Console](images/task3.png)

![Wireshark](images/task3wireshark.png)

## Task 4 | Tamper with the Message (Integrity)

After setting up the proxy certificates, we've set a breakpoint like this:

![ZAP](images/task4breakpoint.png)

After tampering with the message this is the response from the server.

![Tampered](images/task4tampered.png)

## Question

Can we impersonate HttpsClientProxySSLRSA in this setup? If so, we would need it's private key in order to sign messages correctly.