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Merge remote-tracking branch 'refs/remotes/origin/main'

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billbuchanan
2025-03-03 10:19:46 +00:00
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6
unit05_key_exchange/lab/README.MD
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@@ -324,6 +324,8 @@ In the following we will implement ECDH using the secp256k1 curve (as used in Bi
Web link (ECDH): [here](https://asecuritysite.com/hazmat/hashnew13)
Ensure you use the command `python3` if executing the python code from the virtual machines terminal.
```python
from cryptography.hazmat.primitives import hashes
from cryptography.hazmat.primitives.asymmetric import ec
@@ -333,6 +335,8 @@ from cryptography.hazmat.backends import default_backend
import binascii
import sys
size=32
Bob_private_key = ec.generate_private_key(ec.SECP256K1(),default_backend())
Alice_private_key = ec.generate_private_key(ec.SECP256K1(),default_backend())
@@ -361,7 +365,7 @@ print("Alice's public key: ",enc_point)
print ("\nBob's derived key: ",binascii.b2a_hex(Bob_derived_key).decode())
print("Alice's derived key: ",binascii.b2a_hex(Alice_derived_key).decode())())
print("Alice's derived key: ",binascii.b2a_hex(Alice_derived_key).decode())
```
Now modify the code to implement the SECP192R1 and also for the SECP521R1 curve. What do you notice about the sizes of the keys created between the different curve types?

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unit06a_mini_project/README.md
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@@ -1,6 +1,6 @@
![esecurity](https://raw.githubusercontent.com/billbuchanan/appliedcrypto/master/z_associated/esecurity_graphics.jpg)
In this lab, either catch-up on your labs, complete the AWS labs for cryptography or complete the mini-project.
In this lab, either catch up on your labs, complete the AWS labs for cryptography or complete the mini-project (either Mini-project 1 or Mini-project 2).
# Unit 5a: AWS Labs for Cryptography
There are a range of labs to complete using your AWS lab environment:
@@ -15,10 +15,18 @@ There are a range of labs to complete using your AWS lab environment:
* Envelope encryption. [Go](https://asecuritysite.com/aws/lab08). An additional lab to outline the usage of envelope encryption in KMS.
# Unit 5a: Mini-project 1
We can use JavaScript to implement cryptography in the browser. In this case, we will implement cryptography using the WebCrypto integration:
# Unit 5a: Mini-project
* Task 1: Integrate the symmetric key methods of AES GCM [here](https://asecuritysite.com/webcrypto/crypt_gcm), AES CBC [here](https://asecuritysite.com/webcrypto/crypt_cbc) and AES CTR [here](https://asecuritysite.com/webcrypto/crypt_ctr) in a single Web page, and where you can click on a button and it will implement the required mode. For this, take the HTML code defined on related pages, and integrate them together into a single page, and then load that page into the browser.
* Task 2: Integrate the hashing methods for SHA-1, SHA-256, SHA-384 and SHA-512 from the page [here](https://asecuritysite.com/webcrypto/crypt_hash), but select them with buttons rather than from a pull-down menu.
* Task 3: Integrate the signing methods for ECC [here](https://asecuritysite.com/webcrypto/crypt_ecdsa_enc), but use buttons for the signature methods, such as for "P256/SHA1" and "P256/SHA256".
* Task 4: Integrate the signing methods for RSA [here](https://asecuritysite.com/webcrypto/crypt_rsa5_enc), but use buttons for the signature methods, such as for "RSA-1024" and "RSA-2048".
* If you can, integrate all these methods into a single page.
Objective: In this lab we will build a basic infrastructure for integrating and testing cryptograph.
# Unit 5a: Mini-project 2
Objective: In this lab we will build a basic infrastructure for integrating and testing cryptography.
Open up your Ubuntu instance and conduct this lab. The lab is [here](https://github.com/billbuchanan/esecurity/blob/master/unit05a_mini_project/lab_mini_project.pdf).