Hi, I'm having trouble with my Python code using PyCryptdome. I need help fixing my code, I keek geting error when I try to use my public key to the decrypt my encrypted message from Crypto.PublicKey import RSA from Crypto.Cipher import AES, PKCS1_OAEP # Open the encrypted message.txt file_in = open("encrypted_message.txt", "rb") private_key_name = input("Enter file name of the private key: ") # Read the private key private_key = RSA.import_key(open("private_key.pem").read()) end_session_key, nonce, tag, ciphertext = [file_in.read(item) for item in (private_key.size_in_bytes(), 16, 16, -1)] # Use the private key to decrypt the session key cipher_rsa = PKCS1_OAEP.new(private_key) session_key = cipher_rsa.decrypt(end_session_key) # User the AES session key to decrypt the original message and print it cipher_aes = AES.new(session_key, AES.MODE_EAX, nonce) message = cipher_aes.decrypt_and_verify(ciphertext, tag) # AES user to enter a file name for storing the decrypted message decrypted_message = input("Enter with a name for the file to decrypted message: ") file_out = open(decrypted_message, "w") file_out.write(message.decode("utf-8")) file_out.close() print("Decrypted message saved as ", file_out.name) This is the error: line 15, session_key = cipher_rsa.decrypt(end_session_key) line 200, in decrypt raise valueError("Incorrect decryption.")

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Hi, I'm having trouble with my Python code using PyCryptdome. I need help fixing my code, I keek geting error when I try to use my public key to the decrypt my encrypted message

from Crypto.PublicKey import RSA

from Crypto.Cipher import AES, PKCS1_OAEP

# Open the encrypted message.txt

file_in = open("encrypted_message.txt", "rb")

private_key_name = input("Enter file name of the private key: ")

# Read the private key

private_key = RSA.import_key(open("private_key.pem").read())

end_session_key, nonce, tag, ciphertext = [file_in.read(item) for item in (private_key.size_in_bytes(), 16, 16, -1)]

# Use the private key to decrypt the session key

cipher_rsa = PKCS1_OAEP.new(private_key)

session_key = cipher_rsa.decrypt(end_session_key)

# User the AES session key to decrypt the original message and print it

cipher_aes = AES.new(session_key, AES.MODE_EAX, nonce)

message = cipher_aes.decrypt_and_verify(ciphertext, tag)

# AES user to enter a file name for storing the decrypted message

decrypted_message = input("Enter with a name for the file to decrypted message: ")

file_out = open(decrypted_message, "w")

file_out.write(message.decode("utf-8"))

file_out.close()

print("Decrypted message saved as ", file_out.name)

This is the error:

line 15, session_key = cipher_rsa.decrypt(end_session_key)

line 200, in decrypt raise valueError("Incorrect decryption.")

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