Linux OpenSSL配置指南

tar -xzf openssl-x.x.x.tar.gz
cd openssl-x.x.x

./config --prefix=/usr/local/openssl shared zlib

yum install gcc-c++ pcre pcre-devel zlib zlib-devel

make
make install

ln -s /usr/local/openssl/bin/openssl /usr/bin/openssl

ldconfig

mv /usr/bin/openssl /usr/bin/openssl.backup

vim /etc/profile.d/openssl.sh

# Set OPENSSL_PATH
export OPENSSL_PATH="/usr/local/openssl/bin"
export PATH=$PATH:$OPENSSL_PATH

source /etc/profile.d/openssl.sh

which openssl

openssl version -a

#
# OpenSSL configuration file.
#

[default_section]
dir = ./demoCA
certs = $dir/certs
crl_dir = $dir/crl
database = $dir/index.txt

#
# CA section
#

[ca]
default_ca = CA_default

[CA_default]
dir = $dir
certs = $dir/certs
crl_dir = $dir/crl
database = $dir/index.txt
new_certs_dir = $dir/newcerts
certificate = $dir/cacert.pem
serial = $dir/serial
crlnumber = $dir/crlnumber
crl = $dir/crl.pem
private_key = $dir/private/cakey.pem
RANDFILE = $dir/.rand
x509_extensions = v3_ca

#
# Request section
#

[req]
default_bits        = 2048
default_keyfile     = privkey.pem
distinguished_name  = req_distinguished_name
req_extensions     = v3_req
x509_extensions    = v3_req
string_mask         = utf8only

#
# X509 section
#

[v3_req]
keyUsage = keyEncipherment, dataEncipherment
extendedKeyUsage = serverAuth
subjectAltName = @alt_names

[v3_ca]
subjectAltName = @alt_names

[alt_names]
DNS.1 = example.com
DNS.2 = www.example.com

openssl genrsa -out private_key.pem 2048

openssl req -new -key private_key.pem -out csr.pem

openssl x509 -req -days 365 -in csr.pem -signkey private_key.pem -out certificate.pem

openssl x509 -in certificate.pem -text -noout

openssl verify certificate.pem