1.创建key文件
openssl ecparam -genkey -out ss.key -name prime256v1完成后可以在当前目录下查看生成了文件ss.key
2.创建selfsign证书文章来源：https://www.toymoban.com/news/detail-740596.html
openssl req -x509 -days 1095 -key ss.key -out selfsign.pem -outform pem -sha256
输入相关信息
You are about to be asked to enter information that will be incorporated
into your certificate request.
What you are about to enter is what is called a Distinguished Name or a DN.
There are quite a few fields but you can leave some blank
For some fields there will be a default value,
If you enter '.', the field will be left blank.
-----
Country Name (2 letter code) [AU]:CN
State or Province Name (full name) [Some-State]:S
Locality Name (eg, city) []:H
Organization Name (eg, company) [Internet Widgits Pty Ltd]:L
Organizational Unit Name (eg, section) []:V
Common Name (e.g. server FQDN or YOUR name) []:P
Email Address []:M@M.COM 完成后可以在当前目录下查看已经生成了selfsign文章来源地址https://www.toymoban.com/news/detail-740596.html
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