自签发ssl证书

 

# make directories to work from

mkdir -p certs/{server,client,ca,tmp}

 

# Create your very own Root Certificate Authority

openssl genrsa \

  -out certs/ca/my-root-ca.key.pem \

  2048

 

# Self-sign your Root Certificate Authority

# Since this is private, the details can be as bogus as you like

openssl req \

  -x509 \

  -new \

  -nodes \

  -key certs/ca/my-root-ca.key.pem \

  -days 1024 \

  -out certs/ca/my-root-ca.crt.pem \

  -subj "/C=US/ST=Utah/L=Provo/O=ACME Signing Authority Inc/CN=example.com"

 

# Create a Device Certificate for each domain,

# such as example.com, *.example.com, awesome.example.com

# NOTE: You MUST match CN to the domain name or ip address you want to use

openssl genrsa \

  -out certs/server/my-server.key.pem \

  2048

 

# Create a request from your Device, which your Root CA will sign

openssl req -new \

  -key certs/server/my-server.key.pem \

  -out certs/tmp/my-server.csr.pem \

  -subj "/C=US/ST=Utah/L=Provo/O=ACME Tech Inc/CN=${FQDN}"

 

# Sign the request from Device with your Root CA

# -CAserial certs/ca/my-root-ca.srl

openssl x509 \

  -req -in certs/tmp/my-server.csr.pem \

  -CA certs/ca/my-root-ca.crt.pem \

  -CAkey certs/ca/my-root-ca.key.pem \

  -CAcreateserial \

  -out certs/server/my-server.crt.pem \

  -days 500

 

# Create a public key, for funzies

# see https://gist.github.com/coolaj86/f6f36efce2821dfb046d

openssl rsa \

  -in certs/server/my-server.key.pem \

  -pubout -out certs/client/my-server.pub

 

# Put things in their proper place

rsync -a certs/ca/my-root-ca.crt.pem certs/server/

rsync -a certs/ca/my-root-ca.crt.pem certs/client/