Node module
CSR読み込み
＜Node CSR＞
https://www.npmjs.com/package/csr
CSR作成
＜Node.js Generate Key and Certificate Signing Request (CSR)＞
https://www.example-code.com/nodejs/csr_generate_key_and_signing_request.asp
＜csr-gen＞
https://github.com/ericvicenti/csr-gen