CentOS 7 搭建CA认证中心

搭建CA认证中心

配置一个自己的CA认证中心

[root@centos ~]# vim /etc/pki/tls/openssl.cnf +172 #直接定位到172行
basicConstraints=CA:FALSE 　　# 把FALSE改成TRUE 把本机变成CA认证中心

配置认证中心，生成私钥与根证书

[root@centos ~]# /etc/pki/tls/misc/CA -newca

[root@centos ~]# cd /etc/pki/tls/certs/
[root@centos certs]# openssl genrsa -out server.key
Generating RSA private key, 2048 bit long modulus
.......+++
..+++
e is 65537 (0x10001)
[root@centos certs]# openssl req -new -key server.key -out server.csr


[root@centos certs]# touch index.txt
[root@centos certs]# openssl ca -keyfile /etc/pki/CA/private/cakey.pem -cert /etc/pki/CA/cacert.pem -in server.csr -out server.crt
Using configuration from /etc/pki/tls/openssl.cnf
Enter pass phrase for /etc/pki/CA/private/cakey.pem:
Check that the request matches the signature
Signature ok
Certificate Details:
        Serial Number:
            94:05:59:15:3b:a7:45:8b
        Validity
            Not Before: Dec 18 04:31:39 2019 GMT
            Not After : Dec 17 04:31:39 2020 GMT
        Subject:
            countryName               = CN
            stateOrProvinceName       = JS
            organizationName          = ISN
            organizationalUnitName    = canet
            commonName                = canet.org
            emailAddress              = [email protected]
        X509v3 extensions:
            X509v3 Basic Constraints: 
                CA:TRUE
            Netscape Comment: 
                OpenSSL Generated Certificate
            X509v3 Subject Key Identifier: 
                1B:93:9F:9E:02:C3:EE:EE:F1:0B:96:63:B8:16:74:A2:04:50:76:F8
            X509v3 Authority Key Identifier: 
                keyid:39:50:F8:11:F5:CE:AC:AE:97:D4:34:38:F1:03:24:E9:7D:F8:0C:EB

Certificate is to be certified until Dec 17 04:31:39 2020 GMT (365 days)
Sign the certificate? [y/n]:y


1 out of 1 certificate requests certified, commit? [y/n]y
Write out database with 1 new entries
Data Base Updated
[root@centos certs]# cat server.key server.crt >server.pem
[root@centos certs]# 

参考：https://www.cnblogs.com/bigdevilking/p/9434444.html