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cfssl Usage Demo

Workflows

CA: generate own cert

cfssl gencert -initca ca-csr.json | cfssljson -bare ca -

server: generate own CSR

cfssl genkey server.json | cfssljson -bare server

CA: sign server's CSR

cfssl sign -config=ca-config.json -profile=server -csr=server.csr -ca=ca.pem -ca-key=ca-key.pem | cfssljson -bare server

client+CA: generate client's CSR & sign client's CSR

cfssl gencert -ca=ca.pem -ca-key=ca-key.pem -config=ca-config.json -profile=client client.json | cfssljson -bare client

Viewing

PEM key

openssl rsa -in ca-key.pem -text

PEM cert

openssl x509 -in ca.pem -text

Conversions

PEM cert to DER

openssl x509 -in ca.pem -inform PEM -out ca.crt -outform DER

PEM key+cert to PKCS12

openssl pkcs12 -export -out client-key.pfx -inkey client-key.pem -in client.pem

Notes

  • Do not issue certificates for 'localhost'.
  • Do not issue certificates for '127.0.0.1'.