Encryption Algorithm (Python)

gistfile1.txt

# Each letter is assigned a color and converted to HEX then converted to its decimal mathematical operation is preformed on it
# Then the numbers are converted to letters
import random

def generate_random_color():
    """Generates a random color in hex."""
    return "#{:06x}".format(random.randint(0, 0xFFFFFF))

def color_to_decimal(hex_color):
    """Converts a hex color to a decimal value."""
    return int(hex_color[1:], 16)

def decimal_to_color(decimal_value):
    """Converts a decimal value back to a hex color."""
    return "#{:06x}".format(decimal_value & 0xFFFFFF)  # Ensures valid hex range

def perform_operation(decimal_value, operation, operand):
    """Performs the selected mathematical operation."""
    if operation == "addition":
        return decimal_value + operand
    elif operation == "subtraction":
        return decimal_value - operand
    elif operation == "multiplication":
        return decimal_value * operand
    elif operation == "division":
        return decimal_value // operand  # Use floor division for integer results
    else:
        raise ValueError("Invalid operation selected.")

def digits_to_letters(number):
    """Converts each digit of a number into a corresponding letter."""
    digit_to_letter = {0: 'A', 1: 'B', 2: 'C', 3: 'D', 4: 'E',
                       5: 'F', 6: 'G', 7: 'H', 8: 'I', 9: 'J'}
    return ''.join(digit_to_letter[int(digit)] for digit in str(number))

def encrypt(text, operation, operand):
    """Encrypts the input text."""
    letter_to_color = {}
    encrypted_values = {}
    operation_log = []

    for letter in text:
        # Assign a random color to the letter if not already assigned
        if letter not in letter_to_color:
            random_color = generate_random_color()
            letter_to_color[letter] = random_color

        # Get the color and its decimal value
        hex_color = letter_to_color[letter]
        decimal_value = color_to_decimal(hex_color)

        # Perform the selected operation
        transformed_value = perform_operation(decimal_value, operation, operand)

        # Convert the result to letters
        transformed_letters = digits_to_letters(transformed_value)

        # Save the operation details
        operation_log.append(
            f"Letter '{letter}' (Color {hex_color}, Decimal {decimal_value}) {operation} {operand} = {transformed_value} -> {transformed_letters}"
        )

        # Store the encrypted value
        encrypted_values[letter] = transformed_letters

    return encrypted_values, letter_to_color, operation_log

# Input and encryption
text = input("Enter the text to encrypt: ")
operation = input("Enter the mathematical operation (addition, subtraction, multiplication, division): ").lower()
operand = int(input("Enter the numerical operand (e.g., 2, 5): "))

encrypted_values, letter_to_color, operation_log = encrypt(text, operation, operand)

# Display results
print("\n--- Encryption Results ---")
print("Encrypted Values:", encrypted_values)
print("Letter to Color Mapping:", letter_to_color)
print("\nMath Operations Performed:")
for log in operation_log:
    print(log)
input("\nPress Enter to exit...")