Im coding an encrypting/decrypting Programm, but when i try to encrypt more than like 50 characters i get an error
My code:
import rsa
import sys
#Die zu verschlüsselnte datei wird eingelessen
datei = open(sys.argv[1], "r+")
dateiinhalt = datei.read()
#Public key wird eingelessen
public = open("public.txt")
publickey = rsa.PublicKey.load_pkcs1(public.read())
public.close()
#Datei wird verschlüsselt
inhalt = rsa.encrypt(dateiinhalt.encode(), publickey)
#Änderungen werden wirksam gemacht
datei.truncate(0)
datei.close()
wichtig = open(sys.argv[1], "wb")
wichtig.write(inhalt)
print("Erfolgreich verschlüsselt")
Here the error:
Traceback (most recent call last):
File "C:\Users\tom\Desktop\test_backup\verschlüsslung.py", line 16, in <module>
inhalt = rsa.encrypt(dateiinhalt.encode(), publickey)
File "C:\Users\tom\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\rsa\pkcs1.py", line 195, in encrypt
padded = _pad_for_encryption(message, keylength)
File "C:\Users\tom\AppData\Local\Packages\PythonSoftwareFoundation.Python.3.10_qbz5n2kfra8p0\LocalCache\local-packages\Python310\site-packages\rsa\pkcs1.py", line 113, in _pad_for_encryption
raise OverflowError(
OverflowError: 125 bytes needed for message, but there is only space for 117