证书颁发机构通过 OpenSSL 进行管理,目前驻留在服务器 497398 (appdr.Company.com) 上。
CA 目录结构在 /etc/pki/CA/
OpenSSL 配置文件位于 /etc/pki/tls/openssl.cnf
openssl.cnf 文件中最重要的配置条目是以下行:
subjectAltName = DNS:primary-vpn.Company.com,DNS:backup-vpn.Company.com
此行需要 = 符号周围的空格。
如果客户选择添加另一个防火墙设备,则需要在另一个 DNS 中使用该 FQDN 更新此行:必须重新创建条目和所有密钥并将其重新发布给用户。
DFW 和 ORD 中客户帐户上的防火墙设置为通过使用证书以及用户名/密码的两阶段身份验证进行身份验证。
我们正在使用我们在 CA 上生成并分发给客户端的证书。每个防火墙还需要它自己的 PFX 格式证书以及 PEM 格式 CA 证书的副本。防火墙设备的 PFX 证书不得包含 CA 证书。CA 证书必须以 PEM 格式单独导入防火墙!此 CA 证书成为防火墙上的信任点。
防火墙还包括在设备本身上设置的基本用户名/密码身份验证。
防火墙证书密钥密码与设备本身一起记录在密码注释中。
客户端需要连接到每个防火墙的 DNS 名称,并且它必须(截至 2013 年 5 月 31 日)是 primary-vpn.Company.com 或 backup-vpn.Company.com。不支持通过 IP 地址进行连接,因为证书不包含 IP 地址的 subjectAltName。这是为了支持任何未来的 IP 更改,而无需重新键入所有客户端和设备。
每个用户都需要使用 openssl 和 CA 密钥生成单独的密钥和证书。CA 密钥密码记录在密码说明中的设备 497398 (appdr) 下。
您将需要 CA 密钥密码用于下面的证书创建过程(openssl ca ...)
如何添加新用户...
在 ca 服务器上:
切换到 OpenSSL CA 目录
cd /etc/pki/CA
生成密钥
openssl genrsa 2048 -out > username.Companyvpn.key
产生企业社会责任
openssl req -new -key username.Companyvpn.key -out username.Companyvpn.csr (OU = username) (Common Name = username) (无密码)
生成证书 openssl ca -policy policy_anything -out username.Companyvpn.crt -infiles username.Companyvpn.csr(是签署证书)
生成新的随机密码(12 个字符) echo</dev/urandom tr -dc 'a-zA-Z0-9'| head -c12
制作 PFX 证书/密钥存档 openssl pkcs12 -export -out username.Companyvpn.pfx -inkey username.Companyvpn.key -in username.Companyvpn.crt -certfile /etc/pki/CA/certs/CompanyCA.crt (输入随机密码你刚刚生成)
使用此命令验证证书 openssl x509 -in username.Companyvpn.crt -text -noout
看保质期,应该是一年。
- 还要寻找这条线:
- X509v3 主题备用名称
- 如果您没有看到主题备用名称行——停止——openssl.cnf 文件可能有问题!!
联系更高级别的管理员寻求帮助
通过将新的 PFX 文件附加到客户票证并为他们提供密码来分发新的 PFX 文件。
如何创建设备证书/密钥...
在 ca 服务器上:
切换到 OpenSSL CA 目录 cd /etc/pki/CA
为固件设备本身生成密钥 openssl genrsa 1024 > backup-vpn.Company.com.key
为 FW 设备本身生成 CSR openssl req -new -key backup-vpn.Company.com.key -out backup-vpn.Company.com.csr(OU 是 Kimbia 证书)(通用名称 backup-vpn.Company.com)(没有密码)
从 CSR 为 FW 设备生成证书 openssl ca -days 3650 -in backup-vpn.Company.com.csr -out backup-vpn.Company.com.crt
为固件设备制作 PFX(无捆绑 CA 证书)openssl pkcs12 -export -out backup-vpn.Company.com.pfx -inkey backup-vpn.Company.com.key -in backup-vpn.Company.com.crt(使用'rack' 用于导出密码或生成随机密码)
Base64 编码 PFX 存档以供 NetSec 包含在 ASA 上,因为 Cisco 设备需要此 openssl base64 -in backup-vpn.Company.com.pfx -out backup-vpn.Company.com.pfx.b64
将 Base64 编码的 PFX 存档分发给 NetSec 团队
- 将 PEM 编码的 /etc/pki/CA/certs/CompanyCA.crt 分发给 NetSec 团队
天堂禁止,如果您必须重新生成 CA 证书和密钥,这里是过程......
将目录更改为 CA cd /etc/pki/CA
生成密钥 openssl genrsa -out /etc/pki/CA/private/CompanyCA.key -des3 2048
生成证书 openssl req -new -x509 -key /etc/pki/CA/private/CompanyCA.key -days 3650 > /etc/pki/CA/certs/CompanyCA.crt
您现在必须重新生成所有设备密钥和证书,重新配置所有设备,并根据上述说明重新生成所有用户密钥和证书。
我们已经为 2023 年设置了当前 CA/设备集的到期时间,以尽量避免必须重新执行此操作。
要撤销特定证书并禁用用户...
在 ca 服务器上:
这是截至 2013 年 5 月 31 日的当前 /etc/pki/tls/openssl.cnf
#
# OpenSSL example configuration file.
# This is mostly being used for generation of certificate requests.
#
# This definition stops the following lines choking if HOME isn't
# defined.
HOME = .
RANDFILE = $ENV::HOME/.rnd
# Extra OBJECT IDENTIFIER info:
#oid_file = $ENV::HOME/.oid
oid_section = new_oids
# To use this configuration file with the "-extfile" option of the
# "openssl x509" utility, name here the section containing the
# X.509v3 extensions to use:
#extensions = v3_req,v3_ca
# (Alternatively, use a configuration file that has only
# X.509v3 extensions in its main [= default] section.)
[ new_oids ]
# We can add new OIDs in here for use by 'ca', 'req' and 'ts'.
# Add a simple OID like this:
# testoid1=1.2.3.4
# Or use config file substitution like this:
# testoid2=${testoid1}.5.6
# Policies used by the TSA examples.
tsa_policy1 = 1.2.3.4.1
tsa_policy2 = 1.2.3.4.5.6
tsa_policy3 = 1.2.3.4.5.7
####################################################################
[ ca ]
default_ca = CA_default # The default ca section
####################################################################
[ CA_default ]
dir = /etc/pki/CA # Where everything is kept
certs = $dir/certs # Where the issued certs are kept
crl_dir = $dir/crl # Where the issued crl are kept
database = $dir/index.txt # database index file.
#unique_subject = no # Set to 'no' to allow creation of
# several ctificates with same subject.
new_certs_dir = $dir/newcerts # default place for new certs.
certificate = $certs/CompanyCA.crt # The CA certificate
serial = $dir/serial # The current serial number
crlnumber = $dir/crlnumber # the current crl number
# must be commented out to leave a V1 CRL
crl = $dir/crl.pem # The current CRL
private_key = $dir/private/CompanyCA.key # The private key
RANDFILE = $dir/private/.rand # private random number file
x509_extensions = usr_cert # The extentions to add to the cert
# Comment out the following two lines for the "traditional"
# (and highly broken) format.
name_opt = ca_default # Subject Name options
cert_opt = ca_default # Certificate field options
# Extension copying option: use with caution.
# copy_extensions = copy
# Extensions to add to a CRL. Note: Netscape communicator chokes on V2 CRLs
# so this is commented out by default to leave a V1 CRL.
# crlnumber must also be commented out to leave a V1 CRL.
# crl_extensions = crl_ext
default_days = 365 # how long to certify for
default_crl_days= 30 # how long before next CRL
default_md = default # use public key default MD
preserve = no # keep passed DN ordering
# A few difference way of specifying how similar the request should look
# For type CA, the listed attributes must be the same, and the optional
# and supplied fields are just that :-)
policy = policy_match
# For the CA policy
[ policy_match ]
countryName = match
stateOrProvinceName = match
organizationName = match
organizationalUnitName = optional
commonName = supplied
emailAddress = optional
# For the 'anything' policy
# At this point in time, you must list all acceptable 'object'
# types.
[ policy_anything ]
countryName = optional
stateOrProvinceName = optional
localityName = optional
organizationName = optional
organizationalUnitName = optional
commonName = supplied
emailAddress = optional
####################################################################
[ req ]
default_bits = 2048
default_md = sha1
default_keyfile = privkey.pem
distinguished_name = req_distinguished_name
attributes = req_attributes
x509_extensions = v3_ca # The extentions to add to the self signed cert
# Passwords for private keys if not present they will be prompted for
# input_password = secret
# output_password = secret
# This sets a mask for permitted string types. There are several options.
# default: PrintableString, T61String, BMPString.
# pkix : PrintableString, BMPString (PKIX recommendation before 2004)
# utf8only: only UTF8Strings (PKIX recommendation after 2004).
# nombstr : PrintableString, T61String (no BMPStrings or UTF8Strings).
# MASK:XXXX a literal mask value.
# WARNING: ancient versions of Netscape crash on BMPStrings or UTF8Strings.
string_mask = utf8only
req_extensions = v3_req # The extensions to add to a certificate request
[ req_distinguished_name ]
countryName = Country Name (2 letter code)
countryName_default = US
countryName_min = 2
countryName_max = 2
stateOrProvinceName = State or Province Name (full name)
stateOrProvinceName_default = Texas
localityName = Locality Name (eg, city)
localityName_default = AmericanCity
0.organizationName = Organization Name (eg, company)
0.organizationName_default = Software Company Inc
# we can do this but it is not needed normally :-)
#1.organizationName = Second Organization Name (eg, company)
#1.organizationName_default = World Wide Web Pty Ltd
organizationalUnitName = Organizational Unit Name (eg, section)
#organizationalUnitName_default = Software Company Certificate
commonName = Common Name (eg, your name or your server\'s hostname)
commonName_max = 64
emailAddress = Email Address
emailAddress_max = 64
# SET-ex3 = SET extension number 3
[ req_attributes ]
challengePassword = A challenge password
challengePassword_min = 4
challengePassword_max = 20
unstructuredName = An optional company name
[ usr_cert ]
# These extensions are added when 'ca' signs a request.
# This goes against PKIX guidelines but some CAs do it and some software
# requires this to avoid interpreting an end user certificate as a CA.
basicConstraints=CA:FALSE
# Here are some examples of the usage of nsCertType. If it is omitted
# the certificate can be used for anything *except* object signing.
# This is OK for an SSL server.
# nsCertType = server
# For an object signing certificate this would be used.
# nsCertType = objsign
# For normal client use this is typical
# nsCertType = client, email
# and for everything including object signing:
# nsCertType = client, email, objsign
# This is typical in keyUsage for a client certificate.
# keyUsage = nonRepudiation, digitalSignature, keyEncipherment
# This will be displayed in Netscape's comment listbox.
nsComment = "OpenSSL Generated Certificate"
# PKIX recommendations harmless if included in all certificates.
subjectKeyIdentifier=hash
authorityKeyIdentifier=keyid,issuer
# This stuff is for subjectAltName and issuerAltname.
# Import the email address.
# subjectAltName=email:copy
# An alternative to produce certificates that aren't
# deprecated according to PKIX.
# subjectAltName=email:move
# Copy subject details
# issuerAltName=issuer:copy
#nsCaRevocationUrl = http://www.domain.dom/ca-crl.pem
#nsBaseUrl
#nsRevocationUrl
#nsRenewalUrl
#nsCaPolicyUrl
#nsSslServerName
# This is required for TSA certificates.
# extendedKeyUsage = critical,timeStamping
subjectAltName = DNS:primary-vpn.Company.com,DNS:backup-vpn.Company.com
[ v3_req ]
# Extensions to add to a certificate request
basicConstraints = CA:FALSE
keyUsage = nonRepudiation, digitalSignature, keyEncipherment
#subjectAltName = DNS:primary-vpn.Company.com
#subjectAltName = IP:122.123.321.221
#subjectAltName=IP:221.321.123.122,DNS:backup-vpn.Company.com
#subjectAltName=IP:122.123.321.221,DNS:primary-vpn.Company.com
# Changing from IP+DNS to just DNS to mitigate future IP change issues
# Added quotes 130530-07939
[ v3_ca ]
# Extensions for a typical CA
# PKIX recommendation.
subjectKeyIdentifier=hash
authorityKeyIdentifier=keyid:always,issuer
# This is what PKIX recommends but some broken software chokes on critical
# extensions.
#basicConstraints = critical,CA:true
# So we do this instead.
basicConstraints = CA:true
# Key usage: this is typical for a CA certificate. However since it will
# prevent it being used as an test self-signed certificate it is best
# left out by default.
# keyUsage = cRLSign, keyCertSign
# Some might want this also
# nsCertType = sslCA, emailCA
# Include email address in subject alt name: another PKIX recommendation
# subjectAltName=email:copy
# Copy issuer details
# issuerAltName=issuer:copy
# DER hex encoding of an extension: beware experts only!
# obj=DER:02:03
# Where 'obj' is a standard or added object
# You can even override a supported extension:
# basicConstraints= critical, DER:30:03:01:01:FF
subjectAltName = DNS:primary-vpn.Company.com,DNS:backup-vpn.Company.com
[ crl_ext ]
# CRL extensions.
# Only issuerAltName and authorityKeyIdentifier make any sense in a CRL.
# issuerAltName=issuer:copy
authorityKeyIdentifier=keyid:always
[ proxy_cert_ext ]
# These extensions should be added when creating a proxy certificate
# This goes against PKIX guidelines but some CAs do it and some software
# requires this to avoid interpreting an end user certificate as a CA.
basicConstraints=CA:FALSE
# Here are some examples of the usage of nsCertType. If it is omitted
# the certificate can be used for anything *except* object signing.
# This is OK for an SSL server.
# nsCertType = server
# For an object signing certificate this would be used.
# nsCertType = objsign
# For normal client use this is typical
# nsCertType = client, email
# and for everything including object signing:
# nsCertType = client, email, objsign
# This is typical in keyUsage for a client certificate.
# keyUsage = nonRepudiation, digitalSignature, keyEncipherment
# This will be displayed in Netscape's comment listbox.
nsComment = "OpenSSL Generated Certificate"
# PKIX recommendations harmless if included in all certificates.
subjectKeyIdentifier=hash
authorityKeyIdentifier=keyid,issuer
###################################################
###################################################
###Change the subjectAltName per DC####
# This stuff is for subjectAltName and issuerAltname.
# Import the email address.
# subjectAltName=email:copy
# MOVED THIS UNDER [ v3_req ] above
##
#subjectAltName=IP:221.321.123.122,DNS:backup-vpn.Company.com
#subjectAltName=IP:122.123.321.221,DNS:primary-vpn.Company.com
# Changing from IP+DNS to just DNS to mitigate future IP change issues
#subjectAltName="DNS:primary-vpn.Company.com"
#####################################################
#####################################################
# An alternative to produce certificates that aren't
# deprecated according to PKIX.
# subjectAltName=email:move
# Copy subject details
# issuerAltName=issuer:copy
#nsCaRevocationUrl = http://www.domain.dom/ca-crl.pem
#nsBaseUrl
#nsRevocationUrl
#nsRenewalUrl
#nsCaPolicyUrl
#nsSslServerName
# This really needs to be in place for it to be a proxy certificate.
proxyCertInfo=critical,language:id-ppl-anyLanguage,pathlen:3,policy:foo
####################################################################
[ tsa ]
default_tsa = tsa_config1 # the default TSA section
[ tsa_config1 ]
# These are used by the TSA reply generation only.
dir = ./demoCA # TSA root directory
serial = $dir/tsaserial # The current serial number (mandatory)
crypto_device = builtin # OpenSSL engine to use for signing
signer_cert = $dir/tsacert.pem # The TSA signing certificate
# (optional)
certs = $dir/cacert.pem # Certificate chain to include in reply
# (optional)
signer_key = $dir/private/tsakey.pem # The TSA private key (optional)
default_policy = tsa_policy1 # Policy if request did not specify it
# (optional)
other_policies = tsa_policy2, tsa_policy3 # acceptable policies (optional)
digests = md5, sha1 # Acceptable message digests (mandatory)
accuracy = secs:1, millisecs:500, microsecs:100 # (optional)
clock_precision_digits = 0 # number of digits after dot. (optional)
ordering = yes # Is ordering defined for timestamps?
# (optional, default: no)
tsa_name = yes # Must the TSA name be included in the reply?
# (optional, default: no)
ess_cert_id_chain = no # Must the ESS cert id chain be included?
# (optional, default: no)