dex/examples/grpc-client/cert-gen

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#!/bin/bash
if [ -z $SAN ]
then echo "Set SAN with a DNS or IP(e.g. export SAN=IP.1:127.0.0.1,IP.2:172.18.0.2)."
exit 1
fi
echo "Creating CA, server cert/key, and client cert/key..."
# Creating basic files/directories
mkdir -p {certs,crl,newcerts}
touch index.txt
echo 1000 > serial
# CA private key (unencrypted)
openssl genrsa -out ca.key 4096
# Certificate Authority (self-signed certificate)
openssl req -config examples/grpc-client/openssl.conf -new -x509 -days 3650 -sha256 -key ca.key -extensions v3_ca -out ca.crt -subj "/CN=fake-ca"
# Server private key (unencrypted)
openssl genrsa -out server.key 2048
# Server certificate signing request (CSR)
openssl req -config examples/grpc-client/openssl.conf -new -sha256 -key server.key -out server.csr -subj "/CN=fake-server"
# Certificate Authority signs CSR to grant a certificate
openssl ca -batch -config examples/grpc-client/openssl.conf -extensions server_cert -days 365 -notext -md sha256 -in server.csr -out server.crt -cert ca.crt -keyfile ca.key
# Client private key (unencrypted)
openssl genrsa -out client.key 2048
# Signed client certificate signing request (CSR)
openssl req -config examples/grpc-client/openssl.conf -new -sha256 -key client.key -out client.csr -subj "/CN=fake-client"
# Certificate Authority signs CSR to grant a certificate
openssl ca -batch -config examples/grpc-client/openssl.conf -extensions usr_cert -days 365 -notext -md sha256 -in client.csr -out client.crt -cert ca.crt -keyfile ca.key
# Remove CSR's
rm *.csr