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app.py
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app.py
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from flask import Flask, request, jsonify, render_template
from flask_cors import CORS
import importlib.util
import sys
import logging
from decimal import Decimal, getcontext
# Import the khan_encryption_2.py module
module_name = "khan_encryption2"
file_path = "khan_encryption_2.py"
spec = importlib.util.spec_from_file_location(module_name, file_path)
ke = importlib.util.module_from_spec(spec)
sys.modules[module_name] = ke
spec.loader.exec_module(ke)
app = Flask(__name__)
CORS(app) # Enable CORS
# Setup logging
logging.basicConfig(level=logging.DEBUG)
def generate_cyclic_sequence(prime, length):
getcontext().prec = length + 10
decimal_expansion = str(Decimal(1) / Decimal(prime))[2:]
return decimal_expansion[:length]
@app.route('/')
def index():
return render_template('index.html')
@app.route('/encrypt', methods=['POST'])
def encrypt():
app.logger.debug("Encrypt endpoint hit")
try:
data = request.json
app.logger.debug(f"Received data: {data}")
plaintext = data['plaintext']
start_position = data['startPosition']
superposition_sequence_length = data['superpositionLength']
prime = 1051
cyclic_sequence = generate_cyclic_sequence(prime, prime - 1)
ciphertext, char_to_movement, movement_to_char, z_value, superposition_sequence, iv, salt, z_layers = ke.khan_encrypt(
plaintext, prime, cyclic_sequence, start_position, superposition_sequence_length
)
decrypted_text = ke.khan_decrypt(
ciphertext, char_to_movement, movement_to_char, z_value, superposition_sequence, iv, salt, z_layers, prime, start_position, cyclic_sequence
)
response = {
'ciphertext': ''.join(map(str, ciphertext)),
'decryptedMessage': decrypted_text
}
app.logger.debug(f"Response: {response}")
return jsonify(response)
except Exception as e:
app.logger.error(f"Error during encryption: {e}")
return jsonify({'error': str(e)}), 500
if __name__ == '__main__':
app.run(debug=True)