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El fichero openssl.cnf

Editamos el fichero /etc/pki/tls/openssl.cnf que nos servirá para crear los nuevos certificados de forma más cómoda.

#
# 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  =
# (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' and 'req'.
# Add a simple OID like this:
# testoid1=1.2.3.4
# Or use config file substitution like this:
# testoid2=${testoid1}.5.6
 
####################################################################
[ 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.
new_certs_dir = $dir/newcerts  # default place for new certs.
 
certificate = $dir/cacert.pem  # The CA certificate
serial  = $dir/serial   # The current serial number
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.
# crl_extensions = crl_ext
 
default_days = 365   # how long to certify for
default_crl_days= 30   # how long before next CRL
default_md = md5   # which md to use.
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_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.
# utf8only: only UTF8Strings.
# nombstr : PrintableString, T61String (no BMPStrings or UTF8Strings).
# MASK:XXXX a literal mask value.
# WARNING: current versions of Netscape crash on BMPStrings or UTF8Strings
# so use this option with caution!
string_mask = nombstr
 
# req_extensions = v3_req # The extensions to add to a certificate request
 
[ req_distinguished_name ]
countryName   = Pais (2 letter code)
countryName_default  = ES
countryName_min   = 2
countryName_max   = 2
 
stateOrProvinceName  = Estado o Provincia (nombre completo)
stateOrProvinceName_default = Malaga
 
localityName   = Localidad (eg, city)
localityName_default  = Malaga
 
0.organizationName  = Organizacion(eg, company)
0.organizationName_default = IES Bezmiliana
 
# 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  = Departamento (eg, section)
organizationalUnitName_default = Ciclos Formativos FP
 
commonName   = Propietario del certificado
commonName_default              = CA Informatica Bezmiliana
commonName_max   = 64
 
emailAddress   = Email Address
emailAddress_default  = usuario@ies-bezmiliana.org
emailAddress_max  = 64
 
# SET-ex3   = SET extension number 3
 
[ req_attributes ]
challengePassword  = pass
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:always
 
# 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
 
[ v3_req ]
 
# Extensions to add to a certificate request
 
basicConstraints = CA:FALSE
keyUsage = nonRepudiation, digitalSignature, keyEncipherment

extendedKeyUsage  = serverAuth

[ v3_ca ]


# Extensions for a typical CA


# PKIX recommendation.

subjectKeyIdentifier=hash

authorityKeyIdentifier=keyid:always,issuer:always

# 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,issuer:always

Nos limitamos a adaptar los datos del fichero a nuestras necesidades identificando a la autoridad certificadora.