As I Please

iOS13に上がったことで、「サーバーの識別情報を検証できません」のメッセージで悩んでいる方が多いようで。
サーバ証明書作成に使った openssl.cnfの必要な抜粋を載せてみる。

HOME                    = .
RANDFILE                = $ENV::HOME/.rnd
oid_section             = new_oids
[ new_oids ]
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/ssl/foobaa.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.
                                        # 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
name_opt        = ca_default            # Subject Name options
cert_opt        = ca_default            # Certificate field options
default_days    = 820                   # 2019/09/25  for iOS13 securiy policy
default_crl_days= 30                    # how long before next CRL
default_md      = sha256
preserve        = no                    # keep passed DN ordering
policy          = policy_match
[ policy_match ]
countryName             = match
stateOrProvinceName     = match
organizationName        = match
organizationalUnitName  = optional
commonName              = supplied
emailAddress            = optional
[ 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
string_mask = utf8only
req_extensions = v3_req
[ req_distinguished_name ]
countryName                     = Country Name (2 letter code)
countryName_default             = JP
countryName_min                 = 2
countryName_max                 = 2
stateOrProvinceName             = State or Province Name (full name)
stateOrProvinceName_default     = Tokyo
localityName                    = Locality Name (eg, city)
localityName_default            = Shinagawa
0.organizationName              = Organization Name (eg, company)
0.organizationName_default      = SamaToComapany
organizationalUnitName          = Organizational Unit Name (eg, section)
commonName                      = Common Name (e.g. server FQDN or YOUR name)
commonName_max                  = 64
emailAddress                    = Email Address
emailAddress_max                = 64
[ req_attributes ]
challengePassword               = A challenge password
challengePassword_min           = 4
challengePassword_max           = 20
unstructuredName                = An optional company name
[ usr_cert ]
basicConstraints=CA:FALSE
nsComment                       = "OpenSSL Generated Certificate"
subjectKeyIdentifier=hash
authorityKeyIdentifier=keyid,issuer:always
subjectAltName= @alt_names
extendedKeyUsage = critical,timeStamping,serverAuth,clientAuth,codeSigning,emailProtection
[ v3_req ]
basicConstraints = CA:FALSE
keyUsage = nonRepudiation, digitalSignature, keyEncipherment
subjectAltName =@alt_names
extendedKeyUsage = serverAuth,clientAuth,codeSigning,emailProtection
[ v3_ca ]
subjectKeyIdentifier=hash
authorityKeyIdentifier=keyid:always,issuer
basicConstraints = CA:true
[ crl_ext ]
authorityKeyIdentifier=keyid:always
[ proxy_cert_ext ]
basicConstraints=CA:FALSE
nsComment                       = "OpenSSL Generated Certificate"
subjectKeyIdentifier=hash
authorityKeyIdentifier=keyid,issuer
proxyCertInfo=critical,language:id-ppl-anyLanguage,pathlen:3,policy:foo
[ tsa ]
default_tsa = tsa_config1       # the default TSA section
[ tsa_config1 ]
dir             = /etc/ssl/foobaa.CA              # 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         = sha256                # 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)
[ ca_cert ]
basicConstraints=CA:TRUE
subjectKeyIdentifier=hash
authorityKeyIdentifier=keyid:always,issuer:always
nsCertType = sslCA, emailCA
keyUsage = cRLSign, keyCertSign
[alt_names]
DNS.1 = foobaa.com
DNS.2 = *.foobaa.com