python - using https on a flask local development? -

i curious understand how ssl works have decided use ssl on local flask development environment. have read article flask.pocoo.org...ts can not understand yourserver.key , yourserver.crt files?

please give me idea having files free! have seen many company sell ssl want free 1 local development in computer only.

i on windows 7

openssl bundles utilities create required keys , certificates, , since you're going use locally, can self-sign certificate using same utility. can either use openssl version available in distro or openssl, or if on windows, pre-compiled version openssl.

from the common openssl commands:

generate new private key , certificate signing request

openssl req -out csr.csr -new -newkey rsa:2048 -nodes -keyout privatekey.key 

generate self-signed certificate

openssl req -x509 -sha256 -nodes -days 365 -newkey rsa:2048 -keyout privatekey.key -out certificate.crt 

generate certificate signing request (csr) existing private key

openssl req -out csr.csr -key privatekey.key -new 

generate certificate signing request based on existing certificate

openssl x509 -x509toreq -in certificate.crt -out csr.csr -signkey privatekey.key 

remove passphrase private key

openssl rsa -in privatekey.pem -out newprivatekey.pem