🔒 Need Help with Uni Assignment.

[opaque swallow]

I want to make an encryption and decryption project in which I enter a word and it should Encrypt and Decrypt it using Serpent Algorithm. Urgent Help Needed.

[vague flint]

@opaque swallow

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[marble linden]

And have you tried anything?

[opaque swallow]

I an very beginner. i dont know where to start

or what to do

[marble linden]

!rule hw we won't help you complete the entire thing
And also if we do the entire thing it's like plagiarism

[vague flint]

Rules

8. Do not help with ongoing exams. When helping with homework, help people learn how to do the assignment without doing it for them.

[marble linden]

What have you learnt from uni?

[opaque swallow]

I used chatgpt but getting error

[marble linden]

Otherwise you won't be given the assignment if it's impossible

[opaque swallow]

i just started uni so very new to this

[marble linden]

You must have learnt something before the assignment deadline that is relevant

!ees if you believe you need to self learn it

!res if you believe you need to self learn it

[vague flint]

Resources

The Resources page on our website contains a list of hand-selected learning resources that we regularly recommend to both beginners and experts.

[robust apex]

What code do you have so far?

[opaque swallow]

Sure I will look into these tutorials

[robust apex]

What error do you get?

[opaque swallow]

ImportError: cannot import name 'Serpent' from 'Crypto.Cipher'

[robust apex]

Show the full code and full Traceback

[opaque swallow]

from Cryptodome.Random import get_random_bytes
from Cryptodome.Util.Padding import pad, unpad
import tkinter as tk
from tkinter import messagebox
import base64

# 256-bit (32 bytes) key
key = get_random_bytes(32)
bs = 16  # Block size for Serpent

# Encrypt function
def encrypt_text():
    raw = entry_encrypt.get().encode()
    cipher = Serpent.new(key, Serpent.MODE_ECB)
    ct_bytes = cipher.encrypt(pad(raw, bs))
    ct_base64 = base64.b64encode(ct_bytes).decode()
    output_encrypt.delete(0, tk.END)
    output_encrypt.insert(0, ct_base64)

# Decrypt function
def decrypt_text():
    try:
        ct = base64.b64decode(entry_decrypt.get())
        cipher = Serpent.new(key, Serpent.MODE_ECB)
        pt = unpad(cipher.decrypt(ct), bs).decode()
        output_decrypt.delete(0, tk.END)
        output_decrypt.insert(0, pt)
    except Exception as e:
        messagebox.showerror("Decryption Error", f"Failed to decrypt: {e}")

# GUI setup
app = tk.Tk()
app.title("Serpent Encryption/Decryption")
app.geometry("500x300")

# Encrypt section
tk.Label(app, text="Enter text to encrypt:").pack()
entry_encrypt = tk.Entry(app, width=50)
entry_encrypt.pack()
tk.Button(app, text="Encrypt", command=encrypt_text).pack()
output_encrypt = tk.Entry(app, width=50)
output_encrypt.pack()

# Spacer
tk.Label(app, text="\n").pack()

# Decrypt section
tk.Label(app, text="Enter encrypted text to decrypt:").pack()
entry_decrypt = tk.Entry(app, width=50)
entry_decrypt.pack()
tk.Button(app, text="Decrypt", command=decrypt_text).pack()
output_decrypt = tk.Entry(app, width=50)
output_decrypt.pack()

app.mainloop()

[vague flint]

Hey @opaque swallow!

Please edit your message to use a code block

Add a py after the three backticks.

```py
print('Hello, world!')
```

This will result in the following:

print('Hello, world!')```

[opaque swallow]

i used chatgpt for this code

[robust apex]

Ok well start from scratch without ChatGPT. It hallucinated a library with support for the thing you're supposed to implement

What's the spec from the homework?

[opaque swallow]

encryption and decryption project in which I enter a word and it should Encrypt and Decrypt it using Serpent Algorithm.

[marble linden]

Do you know what is the serpent algorithm?(Without asking ChatGPT)

[robust apex]

Enter it into what? Show the actual spec

[true quail]

💀 this makes me feel new uni students are so cooked

[marble linden]

Consider it's April now, the course probably at least already last for 6 month
Haven't specified anything learnt is concerning for me

[warm owl]

1. Do you understand what the encryption and decryption function is doing?
2. Do you understand what Serpent Cipher does? Don't ask Chat GPT try googling first (also don't read the AI summary on Google search results)
3. Instead of implementing Tkinter try from the command line first, only go for something advanced once you're absolutely sure the basic functionality works as intended

[vague flint]

Python help channel closed for inactivity

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