In LINUX :

Company recently intercepted an encrypted message containing the first name of a man who will apply for a job at Company this year, but who is actually a corporate spy. Company has hired you to try to break the encryption and learn the name of the spy. The file pubkey.txt contains the RSA public key used in the encryption, stored in PEM format. The ciphertext file included in the homework zip file contains the ciphertext generated by encrypting the name with plain RSA and the aforementioned public key. You may assume the spy's name is all lowercase. Given this, determine the first name of the corporate spy and in the justification box provide a detailed description of how you determined this, including any python code you used.

please make python code usable through grep "jason" | ./decrypt.py