联盟链系列 - 用Openssl管理CRL

CRL(Certificate revocation lists)

CRL是证书吊销列表, 用于验证数字证书有效性. 数据证书在有效期内是无法强制撤销的, 只能通过将它们添加到适当的CRL中来撤销它们。
可往CRL中添加中间或根证书,也可增加特指的某个X509证书

修改中间CA的配置文件

指定用于展示CRl的PEM文件的网址

[ server_cert ]
# ... snipped ...
crlDistributionPoints = URI:http://example.com/intermediate.crl.pem

使用中间CA为网站颁发服务器用的证书

#cd /root/ca
openssl genrsa -aes256 \
      -out intermediate/private/cute-kitten-pictures.example.com.key.pem 2048
chmod 400 intermediate/private/cute-kitten-pictures.example.com.key.pem


#cd /root/ca
openssl req -config intermediate/openssl.cnf \
      -key intermediate/private/cute-kitten-pictures.example.com.key.pem \
      -new -sha256 -out intermediate/csr/cute-kitten-pictures.example.com.csr.pem


Enter pass phrase for cute-kitten-pictures.example.com.key.pem: secretpassword
You are about to be asked to enter information that will be incorporated
into your certificate request.
-----
Country Name (2 letter code) [XX]:US
State or Province Name []:California
Locality Name []:Mountain View
Organization Name []:Alice Ltd
Organizational Unit Name []:Alice Ltd Web Services
Common Name []:cute-kitten-pictures.example.com
Email Address []:


#cd /root/ca
openssl ca -config intermediate/openssl.cnf \
      -extensions server_cert -days 375 -notext -md sha256 \
      -in intermediate/csr/cute-kitten-pictures.example.com.csr.pem \
      -out intermediate/certs/cute-kitten-pictures.example.com.cert.pem
chmod 444 intermediate/certs/cute-kitten-pictures.example.com.cert.pem

查看服务器证书

openssl x509 -noout -text \
      -in intermediate/certs/cute-kitten-pictures.example.com.cert.pem

包含了 crl的展示网址:

X509v3 CRL Distribution Points:

        Full Name:
          URI:http://example.com/intermediate.crl.pem

吊销证书

openssl ca -config intermediate/openssl.cnf \
      -revoke intermediate/certs/[email protected]

Enter pass phrase for intermediate.key.pem: secretpassword
Revoking Certificate 1001.
Data Base Updated

重新创建CRL证书

openssl ca -config intermediate/openssl.cnf  \
      -gencrl -out intermediate/crl/intermediate.crl.pem

---

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