o 9F9` @s.dZddlZddlmZddlZdddZdS)zUtility functions.N) OptionParserreturnc Cstddd}|jdddddd |jd d d dd d |jdddddd|jdddddd|tj\}}|jratd|j|jftjdt |jd }| }Wdn1s[wYntd|jtjdtj d}t |tksJt |tjj||j}tj|j|j}||j}|jrtd|j|jftjdt |jd}||WddS1swYdStd|jtjdtj|ddS) z=Reads a private key and outputs the corresponding public key.zusage: %prog [options]zReads a private key and outputs the corresponding public key. Both private and public keys use the format described in PKCS#1 v1.5)usage descriptionz-iz--input infilenamestringz1Input filename. Reads from stdin if not specified)desttypehelpz-oz--output outfilenamez2Output filename. Writes to stdout of not specifiedz--informinformz!key format of input - default PEM)PEMZDERr )rr choicesdefaultz --outformoutformz"key format of output - default PEMz(Reading private key from %s in %s format)filerbNz+Reading private key from stdin in %s formatasciiz%Writing public key to %s in %s formatwbz)Writing public key to stdout in %s format)rZ add_option parse_argssysargvrprintr stderropenreadstdinencoder bytesrsakeyZ PrivateKeyZ load_pkcs1Z PublicKeyneZ save_pkcs1rr writestdoutdecode) parserZcliZcli_argsZinfileZin_dataZpriv_keyZpub_keyZout_dataZoutfiler'(lib/python3.10/site-packages/rsa/util.pyprivate_to_publicsb        " r))rN)__doc__rZoptparserZrsa.keyrr)r'r'r'r(s