OpenSSL生成v3证书方法及配置文件

场景：

业务需要生成v3版的证书，而一般使用OpenSSL生成证书时都是v1版的，不带扩展属性。

方法：

在使用CA证书进行签署证书时加入-exfile和-extensions选项，具体命令如下：

>openssl x509 -req  -days 365 -sha256 -extfile openssl.cnf -extensions v3_req   -in server.csr -signkey server.key -out server.crt

对应openssl.cnf配置文件


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  = ./demoCA  # 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 = $dir/cacert.pem  # 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/cakey.pem# 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  = 1024
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  = CN
countryName_min   = 2
countryName_max   = 2

stateOrProvinceName  = State or Province Name (full name)
stateOrProvinceName_default = BeiJing

localityName   = Locality Name (eg, city)

0.organizationName  = Organization Name (eg, company)
0.organizationName_default = myca

# 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 =

commonName   = Common Name (e.g. server FQDN or YOUR name)
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

[ svr_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.
#  digitalSignature nonRepudiation keyEncipherment dataEncipherment  
#  keyAgreement keyCertSign cRLSign encipherOnly decipherOnly 
keyUsage = nonRepudiation, digitalSignature, keyEncipherment, dataEncipherment, keyAgreement

# 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 = serverAuth,clientAuth

[ v3_req ]

# Extensions to add to a certificate request

basicConstraints = CA:FALSE
keyUsage = nonRepudiation, digitalSignature, keyEncipherment

[ 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

[ 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

# 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 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)
时间： 2024-12-15 01:48:22

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