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If the token is valid, the key is correct, and the message has not expired, the exact original bytes are returned.

Fix: Double-check your key storage and ensure the data stream wasn't altered during transit. cryptography.fernet download

# Decrypt the data using the same Fernet instance decrypted_text = cipher_suite.decrypt(cipher_text) # Decode back to a readable string print(f"Decrypted message: {decrypted_text.decode('utf-8')}") Use code with caution. ⚠️ Common Errors and Troubleshooting If the token is valid, the key is