Saya membuat sertifikat server yang ditandatangani sendiri menggunakan req -x509perintah OpenSSL dan file CONF. File CONF ditunjukkan di bawah ini.
Ketika saya memeriksa sertifikat menggunakan penampil sertifikat Microsoft, itu menunjukkan peringatan aktif basicConstraints(perhatikan titik seru kecil):
File CONF menggunakan berikut ini untuk membangun basicConstraints:
basicConstraints = critical,CA:FALSE
Menurut RFC 5280 , pathLenseharusnya hanya ada jika CA:TRUEdan keyCertSignada. Sertifikat server tidak memenuhi kedua kondisi (plus, pengujian dengan pathLenmenghasilkan peringatan yang sama).
Mengapa alat sertifikat Microsoft menyala basicConstraints? Apa yang salah dengannya atau apa yang harus saya lakukan untuk memperbaikinya?
# Self Signed (note the addition of -x509):
# openssl req -config example.conf -new -x509 -sha256 -newkey rsa:2048 -nodes -keyout example.key.pem -days 365 -out example.cert.pem
# Self Signed with existing key (note the addition of -x509):
# openssl req -config example.conf -new -x509 -sha256 -key example.key.pem -days 365 -out example.cert.pem
# Signing Request (note the lack of -x509):
# openssl req -config example.conf -new -newkey rsa:2048 -nodes -keyout example.key.pem -days 365 -out example.req.pem
# Signing Request with existing key (note the lack of -x509):
# openssl req -config example.conf -new -key example.key.pem -days 365 -out example.req.pem
# Print it:
# openssl x509 -in example.cert.pem -text -noout
# openssl req -in example.req.pem -text -noout
[ req ]
default_bits = 2048
default_keyfile = server-key.pem
distinguished_name = subject
req_extensions = req_ext
x509_extensions = x509_ext
string_mask = utf8only
# The Subject DN can be formed using X501 or RFC 4514 (see RFC 4519 for a description).
# Its sort of a mashup. For example, RFC 4514 does not provide emailAddress.
[ subject ]
countryName = Country Name (2 letter code)
countryName_default = US
stateOrProvinceName = State or Province Name (full name)
stateOrProvinceName_default = MD
localityName = Locality Name (eg, city)
localityName_default = Baltimore
organizationName = Organization Name (eg, company)
organizationName_default =
# Use a friendly name here because its presented to the user. The server's DNS
# names are placed in Subject Alternate Names. Plus, DNS names here is deprecated
# by both IETF and CA/Browser Forums.
commonName = Common Name (e.g. server FQDN or YOUR name)
commonName_default = Example, LLC
emailAddress = Email Address
emailAddress_default = webmaster@example.com
# Section x509_ext is used when generating a self-signed certificate. I.e., openssl req -x509 ...
[ x509_ext ]
subjectKeyIdentifier = hash
authorityKeyIdentifier = keyid,issuer
basicConstraints = critical,CA:FALSE
keyUsage = digitalSignature, keyEncipherment
subjectAltName = @alternate_names
nsComment = "OpenSSL Generated Certificate"
# RFC 5280, Section 4.2.1.12 makes EKU optional
# CA/Browser Baseline Requirements, Appendix (B)(3)(G) makes me confused
extendedKeyUsage = serverAuth
# Section req_ext is used when generating a certificate signing request. I.e., openssl req ...
[ req_ext ]
subjectKeyIdentifier = hash
basicConstraints = critical,CA:FALSE
keyUsage = digitalSignature, keyEncipherment
subjectAltName = @alternate_names
nsComment = "OpenSSL Generated Certificate"
# RFC 5280, Section 4.2.1.12 makes EKU optional
# CA/Browser Baseline Requirements, Appendix (B)(3)(G) makes me confused
extendedKeyUsage = serverAuth
[ alternate_names ]
DNS.1 = example.com
DNS.2 = www.example.com
DNS.3 = mail.example.com
DNS.4 = ftp.example.com
# Add these if you need them. But usually you don't want them or
# need them in production. You may need them for development.
# DNS.5 = localhost
# DNS.6 = localhost.localdomain
# DNS.7 = 127.0.0.1
# IPv6 localhost
# DNS.8 = ::1