2024-06-05 14:59:24 +03:00

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Executable File

#!/bin/sh
# https://gist.github.com/zapstar/4b51d7cfa74c7e709fcdaace19233443
mkdir -p ca/private
chmod 700 ca/private
# NOTE: I'm using -nodes, this means that once anybody gets
# their hands on this particular key, they can become this CA.
openssl req \
-x509 \
-nodes \
-days 36524 \
-newkey rsa:4096 \
-keyout ca/private/ca_key.pem \
-out ca/ca_cert.pem \
-subj "/C=RU/ST=KChR/L=Bukovo/O=SAO RAS/CN=sao.ru"
# Create server private key and certificate request
mkdir -p server/private
chmod 700 ca/private
openssl genrsa -out server/private/server_key.pem 4096
openssl req -new \
-key server/private/server_key.pem \
-out server/server.csr \
-subj "/C=RU/ST=KChR/L=Bukovo/O=SAO RAS"
# Create client private key and certificate request
mkdir -p client/private
chmod 700 client/private
openssl genrsa -out client/private/client_key.pem 4096
openssl req -new \
-key client/private/client_key.pem \
-out client/client.csr \
-subj "/C=RU/ST=KChR/L=Bukovo/O=SAO RAS"
# Generate certificates
openssl x509 -req -days 36524 -in server/server.csr \
-CA ca/ca_cert.pem -CAkey ca/private/ca_key.pem \
-CAcreateserial -out server/server_cert.pem
openssl x509 -req -days 36524 -in client/client.csr \
-CA ca/ca_cert.pem -CAkey ca/private/ca_key.pem \
-CAcreateserial -out client/client_cert.pem
# Now test both the server and the client
# On one shell, run the following
# openssl s_server -CAfile ca/ca_cert.pem -cert server/server_cert.pem -key server/private/server_key.pem -Verify 1
# On another shell, run the following
# openssl s_client -CAfile ca/ca_cert.pem -cert client/client_cert.pem -key client/private/client_key.pem
# Once the negotiation is complete, any line you type is sent over to the other side.
# By line, I mean some text followed by a keyboard return press.