OpenSSL CA

openssl.cnf

# https://jamielinux.com/articles/2013/08/act-as-your-own-certificate-authority/

[ ca ]
default_ca      = CA_default            # The default ca section
 
[ CA_default ]
dir			= /Devel/pki/CA              # top dir
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

# 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	= 3650			# how long to certify for
default_crl_days= 30			# how long before next CRL
default_md	= sha256			# 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		= 2024
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			= Country Name (2 letter code)
countryName_default		= UK
countryName_min			= 2
countryName_max			= 2

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

localityName			= Locality Name (eg, city)
localityName_default	= London

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

# 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	= Development

commonName			= Common Name (eg, YOUR name)
commonName_max			= 64

emailAddress			= Email Address
emailAddress_max		= 40

# 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:always

# This stuff is for subjectAltName and issuerAltname.
# Import the email address.
# subjectAltName=email:copy

# 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

[ 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

openssl.sh

export CA_DIR=/Devel/pki/CA

mkdir -p ${CA_DIR}
cd ${CA_DIR}
mkdir certs crl newcerts private
chmod 700 private
touch index.txt
echo 01 > serial

export CONFIG=/Devel/pki/openssl.cnf

# Generate CA private key
openssl genrsa -aes256 -out ${CA_DIR}/private/ca.key.pem 4096
# Generate CA certificate for private key
openssl req -config ${CONFIG} -new -x509 -days 7300 -sha256 -extensions v3_ca -key ${CA_DIR}/private/ca.key.pem -out ${CA_DIR}/certs/ca.cert.pem

chmod 444 $CA_DIR/certs/ca.cert.pem

# Create and sign cerificate

export CERT_NAME=www.example.com

# Generate private key
openssl genrsa -out ${CA_DIR}/private/${CERT_NAME}.key.pem 2048

# Generate signing request
openssl req -config ${CONFIG} -sha256 -new -days 3650 -key ${CA_DIR}/private/${CERT_NAME}.key.pem -out ${CA_DIR}/certs/${CERT_NAME}.csr.pem

# Accept signing request
openssl ca -config ${CONFIG} -extensions usr_cert -notext -md sha256 -keyfile ${CA_DIR}/private/ca.key.pem -cert ${CA_DIR}/certs/ca.cert.pem -in ${CA_DIR}/certs/${CERT_NAME}.csr.pem -out ${CA_DIR}/certs/${CERT_NAME}.cert.pem

chmod 444 ${CA_DIR}/certs/www.example.com.cert.pem

# x509 + key + ca cert -> pfx/p12
openssl pkcs12 -export -in ${CA_DIR}/certs/${CERT_NAME}.cert.pem -inkey ${CA_DIR}/private/${CERT_NAME}.key.pem -out ${CA_DIR}/private/${CERT_NAME}.p12 -name ${CERT_NAME} -CAfile ${CA_DIR}/certs/ca.cert.pem -caname cacert

# Create JKS keystore
keytool -import -file ${CA_DIR}/certs/ca.cert.pem -keystore ${CERT_NAME}.jks -alias cacert

# Import pfx/p12 into JKS
keytool -importkeystore -deststorepass kokosak -destkeypass kokosak -destkeystore ${CERT_NAME}.jks -srckeystore ${CA_DIR}/private/${CERT_NAME}.p12 -srcstoretype PKCS12 -srcstorepass kokosak -alias ${CERT_NAME}