Mac 生成ssl自签证书 和 CA证书

创建自签证书

1.执行 openssl

Last login: Tue Sep 29 19:35:49 on ttys001
➜  ~ openssl
OpenSSL> 

2.执行genrsa -des3 -out server.key 2048 生成server.key私钥文件

OpenSSL> genrsa -des3 -out server.key 2048
Generating RSA private key, 2048 bit long modulus
...................................................................................+++
..........+++
e is 65537 (0x10001)
Enter pass phrase for server.key:
Verifying - Enter pass phrase for server.key:

3.执行 req -new -key server.key -out server.csr 创建证书请求，生成server.csr

OpenSSL> req -new -key server.key -out server.csr
Enter pass phrase for server.key:
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) []:cn
State or Province Name (full name) []:beijing
Locality Name (eg, city) []:beijing
Organization Name (eg, company) []:huidev
Organizational Unit Name (eg, section) []:ihuidev
Common Name (eg, fully qualified host name) []:devhui.org
Email Address []:

Please enter the following 'extra' attributes
to be sent with your certificate request
A challenge password []:

[选]4.删除密码 rsa -in server.key -out server_no_password.key 生成一个新的key

OpenSSL> rsa -in server.key -out server_no_password.key
Enter pass phrase for server.key:
writing RSA key

5.生成crt证书 x509 -req -days 365 -in server.csr -signkey server_no_password.key -out server.crt

OpenSSL> x509 -req -days 365 -in server.csr -signkey server_no_password.key -out server.crt
Signature ok
subject=/C=cn/ST=beijing/L=beijing/O=huidev/OU=ihuidev/CN=devhui.org
Getting Private key
OpenSSL>

证书：
执行第四步删除密码的有效证书文件为： server_no_password.key 和 server.crt
没有执行第四步删除密码的有效证书文件为： server.key 和 server.crt

---

创建ca证书

1. 执行genrsa -out ca.key 2048

➜  ~ openssl
OpenSSL> genrsa -out ca.key 2048
Generating RSA private key, 2048 bit long modulus
................................................................................................................+++
.......................................+++
e is 65537 (0x10001)

2. 执行req -new -x509 -days 3650 -key ca.key -out ca.pem

OpenSSL> req -new -x509 -days 3650 -key ca.key -out ca.pem
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) []:cn
State or Province Name (full name) []:beijing
Locality Name (eg, city) []:beijing
Organization Name (eg, company) []:ihuidev
Organizational Unit Name (eg, section) []:ihuidev
Common Name (eg, fully qualified host name) []:localhost
Email Address []:
OpenSSL>

3. 重新生成服务端证书

1）genrsa -out server.key 2048

OpenSSL> genrsa -out server.key 2048
Generating RSA private key, 2048 bit long modulus
.........................................................+++
..............................+++
e is 65537 (0x10001)

2）req -new -key server.key -out server.csr

OpenSSL> req -new -key server.key -out server.csr
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) []:cn
State or Province Name (full name) []:beijing
Locality Name (eg, city) []:beijing
Organization Name (eg, company) []:ihuidev
Organizational Unit Name (eg, section) []:ihuidev
Common Name (eg, fully qualified host name) []:localhost
Email Address []:

Please enter the following 'extra' attributes
to be sent with your certificate request
A challenge password []:

3）x509 -req -sha256 -CA ca.pem -CAkey ca.key -CAcreateserial -days 3650 -in server.csr -out server.pem
两次域名一定要写一致，我这里全部写的localhost

OpenSSL> x509 -req -sha256 -CA ca.pem -CAkey ca.key -CAcreateserial -days 3650 -in server.csr -out server.pem
Signature ok
subject=/C=cn/ST=beijing/L=beijing/O=ihuidev/OU=ihuidev/CN=localhost
Getting CA Private Key
OpenSSL>

4. 同理重新生成客户端

1）
ecparam -genkey -name secp384r1 -out client.key

OpenSSL> ecparam -genkey -name secp384r1 -out client.key

2）req -new -key client.key -out client.csr

OpenSSL> req -new -key client.key -out client.csr
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) []:cn
State or Province Name (full name) []:beijing
Locality Name (eg, city) []:beijing
Organization Name (eg, company) []:ihuidev
Organizational Unit Name (eg, section) []:ihuidev
Common Name (eg, fully qualified host name) []:localhost
Email Address []:

Please enter the following 'extra' attributes
to be sent with your certificate request
A challenge password []:

3）x509 -req -sha256 -CA ca.pem -CAkey ca.key -CAcreateserial -days 3650 -in client.csr -out client.pem

OpenSSL> x509 -req -sha256 -CA ca.pem -CAkey ca.key -CAcreateserial -days 3650 -in client.csr -out client.pem
Signature ok
subject=/C=cn/ST=beijing/L=beijing/O=ihuidev/OU=ihuidev/CN=localhost
Getting CA Private Key
OpenSSL>

客户端：client.key ca.pem client.pem
服务端：server.key ca.pem server.pem