【随笔记】生成私有的CA认证证书，记录SSL证书完整签发过程

Love The Way You Lie 2022-09-12 14:52 194阅读 0赞

> 水滴石穿，点滴记忆

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## 生成crt秘钥 ##

*  第一步创建配置文件

[ req ]
    default_bits       = 4096
    distinguished_name = req_distinguished_name
    req_extensions     = req_ext
    
    [ req_distinguished_name ]
    countryName                 = Country Name (2 letter code)
    countryName_default         = cn
    stateOrProvinceName         = State or Province Name (full name)
    stateOrProvinceName_default = sc
    localityName                = Locality Name (eg, city)
    localityName_default        = cd
    organizationName            = Organization Name (eg, company)
    organizationName_default    = my
    organizationalUnitName            = Organizational Unit Name (eg, section)
    organizationalUnitName_default    = as
    commonName                  = Common Name (e.g. server FQDN or YOUR name)
    commonName_max              = 64
    commonName_default          = hy.com
    
    [ req_ext ]
    subjectAltName = @alt_names
    
    
    [alt_names]
    IP.1    = 127.0.0.1
    DNS.1   = *
    DNS.2   = 127.0.0.1

这里的作用有两个，一个是里面的生成信息每次都是一致的，另一个就是签发的IP可以随意修改。

需要注意的是，IP与DNS要成对配置。

*  第二步生成私钥key

openssl genrsa -out server.key 2048

*  第三步生成csr文件

这里生成csr可以使用上面创建的配置文件，也可以不使用，到最后生成crt文件的时候在使用config

使用config

openssl req -new -nodes -out server.csr -key server.key -config  config.conf

不使用config

openssl req -new -nodes -out server.csr -key server.key

*  第四步生成最终的crt证书

这里是创建了一个bat脚本，后面每次签发不同的IP，可以修改config.conf文件。在直接运行bat就可以了

@echo off
    
    
    set /p ok=是否继续[Y/N]:
    
    if "%ok%"=="y" (
    	set ok=Y
    )
    
    if "%ok%"=="Y" (
    	cd %~dp0
    	C:/OpenSSL-Win64/bin/openssl x509 -req -days 3650 -in server.csr -signkey server.key -out server.crt -extfile config.conf -extensions req_ext
    	@echo off
    	pause
    )

## 配置NGINX ##

在nginx的conf目录下创建一个文件夹，取名httpsCofig，这个里面用来放上面生成的两个文件：

*  server.crt
 *  server.key

后续如果发生IP变化，可以直接更换这里的文件

下面看一下NGINX的配置

#user  nobody;
    worker_processes  1;
    
    #error_log  logs/error.log;
    #error_log  logs/error.log  notice;
    #error_log  logs/error.log  info;
    
    #pid        logs/nginx.pid;
    
    
    events {
        worker_connections  1024;
    }
    
    
    http {
        include       mime.types;
        default_type  application/octet-stream;
    	
    
    
        #log_format  main  '$remote_addr - $remote_user [$time_local] "$request" '
        #                  '$status $body_bytes_sent "$http_referer" '
        #                  '"$http_user_agent" "$http_x_forwarded_for"';
    
        #access_log  logs/access.log  main;
    
        sendfile        on;
        #tcp_nopush     on;
    
        #keepalive_timeout  0;
        keepalive_timeout  65;
    
        #gzip  on;
    
    	map $http_upgrade $connection_upgrade {
    		default upgrade;
    		'' close;
    	}
    	
        server {
            listen       443 ssl;
            server_name  127.0.01;
    		ssl_certificate     httpsConfig/server.crt;
    		ssl_certificate_key httpsConfig/server.key;
    		ssl_session_cache    shared:SSL:1m;
    		ssl_session_timeout  5m;
    		ssl_ciphers  HIGH:!aNULL:!MD5;
    		ssl_prefer_server_ciphers  on;
    
            #charset koi8-r;
    
            #access_log  logs/host.access.log  main;
    		
    		location /map/ {
                alias   googlemaps/roadmap/;
            }
    		# http使用常规的nginx代理策略，前端正常使用https进行连接
    		location / {
                root   html;
                index  index.html index.htm;
    			proxy_pass http://127.0.0.1:12345;
    			proxy_http_version 1.1;
    			proxy_set_header Upgrade $http_upgrade;
    			proxy_set_header Connection "upgrade";
    			client_max_body_size 22m;
    			proxy_set_header Host $host:$server_port;
    			proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
                proxy_set_header X-Forwarded-Proto $scheme;
                proxy_set_header X-Forwarded-Port $server_port;
    			proxy_redirect http:// $scheme://;
            }
    		# websocket使用nginx进行代理，这里用的是http握手方式，前端使用wss进行连接
    		location /MyWebSocket/websocket {
                root   html;
                index  index.html index.htm;
    			proxy_pass http://127.0.0.1:12346/MyWebSocket/websocket;
    			proxy_http_version 1.1;
    			proxy_set_header Upgrade $http_upgrade;
    			proxy_set_header Connection "upgrade";
            }
    		
    		
            #error_page  404              /404.html;
    
            # redirect server error pages to the static page /50x.html
            #
            error_page   500 502 503 504  /50x.html;
            location = /50x.html {
                root   html;
            }
        }
    	
    }