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Refactor questions in possible_ans.md

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Removed Q9 and Q10 sections, added Q13, and updated related content.
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Bill Buchanan
2026-02-02 13:49:19 +00:00
committed by GitHub
parent 7cca2077f4
commit 0d87fc9da8
1 changed files with 17 additions and 35 deletions
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unit02_symmetric/lab/possible_ans.md
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@@ -56,47 +56,13 @@ echo -n "Hello" | openssl enc -aes-256-cbc -pass pass:"paris" -e -base64 -S 241f
tZCdiQE4L6QT+Dff82F5bw==
```
## Q9
## Q11
```
echo tZCdiQE4L6QT+Dff82F5bw== | openssl enc -aes-256-cbc -pass pass:paris"" -d -base64 -S 241fa86763b85341 -pbkdf2
Hello
```
## Q10
```
echo -n "Hello" | openssl enc -aes-128-cbc -pass pass:"london" -e -base64 -S 241fa86763b85341 -pbkdf2
echo -n "Hello" | openssl enc -aes-128-cbc -pass pass:"london" -e -base64 -salt -pbkdf2
9Z+NtmCdQSpmRl+eZebFXQ==
U2FsdGVkX1/8ajTn5wyaPAk2PBG/n+nJ38w1N/vZt38=
echo -n "Hello" | openssl enc -aes-128-cbc -pass pass:"london" -e -base64 -S 241fa86763b85341 -pbkdf2
echo -n "Hello" | openssl enc -aes-128-cbc -pass pass:"london" -e -base64 -salt -pbkdf2
9Z+NtmCdQSpmRl+eZebFXQ==
U2FsdGVkX1/VCIe2O1KaYL4NhwY5lpAPO9wMtyWc9Xo=
```
With the first command, we use the same salt value each time, but the second command uses a random salt value, so it will change each time.
## Q11
Part 1 (password is glasgow):
```
echo "U2FsdGVkX1+7VpBGwevibQGgescaz5nsArtGLNqFaXk=" | openssl enc -d -aes-128-cbc -pass pass:glasgow -base64 -pbkdf2
banana
```
Part 2 (password is edinburgh):
```
echo "U2FsdGVkX18vpjgccu7VkPZrkncqADuy1kVKU9LbLec=" | openssl enc -d -aes-128-cbc -pass pass:edinburgh -base64 -pbkdf2
kiwi
```
## Q12
@@ -120,6 +86,22 @@ When we have a fixed salt value, we get the same cipher each time for a given sy
9Z+NtmCdQSpmRl+eZebFXQ==
% echo -n "Hello" | openssl enc -aes-128-cbc -pass pass:"london" -e -base64 -S 241fa86763b85341 -pbkdf2
9Z+NtmCdQSpmRl+eZebFXQ==
```
## Q13
Part 1 (password is glasgow):
```
echo "U2FsdGVkX1+7VpBGwevibQGgescaz5nsArtGLNqFaXk=" | openssl enc -d -aes-128-cbc -pass pass:glasgow -base64 -pbkdf2
banana
```
Part 2 (password is edinburgh):
```
echo "U2FsdGVkX18vpjgccu7VkPZrkncqADuy1kVKU9LbLec=" | openssl enc -d -aes-128-cbc -pass pass:edinburgh -base64 -pbkdf2
kiwi
```
## D Python Coding (Encrypting)
### D.1