OpenSSL 签名认证机制

生成CA证书

#!/bin/sh# Generate the key.openssl genrsa -out private/ca.key 2048# Generate a certificate request.openssl req -new -extensions v3_ca -key private/ca.key -out private/ca.csr -config "/root/ca/conf/openssl.conf"# Self signing key is bad... this could work with a third party signed key... registeryfly has them on for $16 but I'm too cheap lazy to get one on a lark.# I'm also not 100% sure if any old certificate will work or if you have to buy a special one that you can sign with. I could investigate further but since this# service will never see the light of an unencrypted Internet see the cheap and lazy remark.# So self sign our root key.echo "01" > serialecho "01" > crlnumbertouch index.txtopenssl ca -extensions v3_ca -selfsign -days 36500 -in private/ca.csr -keyfile private/ca.key -out private/ca.crt -config "/root/ca/conf/openssl.conf"# openssl x509 -extensions v3_ca -days 36500 -in private/ca.csr -signkey private/ca.key -out private/ca.crt# Setup the first serial number for our keys... can be any 4 digit hex string... not sure if there are broader bounds but everything I've seen uses 4 digits.# echo FACE > serial# Create the CA's key database.# touch index.txt# Create a Certificate Revocation list for removing 'user certificates.'# openssl ca -gencrl -out /usr/nginx-1.8.0/ca/private/ca.crl -crldays 7 -config "/usr/nginx-1.8.0/ca/conf/openssl.conf"

生成服务端证书

# Create us a key. Don't bother putting a password on it since you will need it to start apache. If you have a better work around I'd love to hear it.openssl genrsa -out server/server.key 2048# Take our key and create a Certificate Signing Request for it.openssl req -new -key server/server.key -out server/server.csr# Sign this bastard key with our bastard CA key.openssl ca -extensions v3_server -in server/server.csr -cert private/ca.crt -keyfile private/ca.key -out server/server.crt -config "/root/ca/conf/openssl.conf"

生成客户端证书

#!/bin/sh# The base of where our SSL stuff lives.base="/root/ca"# Were we would like to store keys... in this case we take the username given to us and store everything there.mkdir -p $base/client/# Let's create us a key for this user... yeah not sure why people want to use DES3 but at least let's make us a nice big key.openssl genrsa -des3 -out $base/client/client.key 2048# Create a Certificate Signing Request for said key.openssl req -new -key $base/client/client.key -out $base/client/client.csr# Sign the key with our CA's key and cert and create the user's certificate out of it.openssl ca -in $base/client/client.csr -cert $base/private/ca.crt -keyfile $base/private/ca.key -out $base/client/client.crt -config "/root/ca/conf/openssl.conf"# This is the tricky bit... convert the certificate into a form that most browsers will understand PKCS12 to be specific.# The export password is the password used for the browser to extract the bits it needs and insert the key into the user's keychain.# Take the same precaution with the export password that would take with any other password based authentication scheme.openssl pkcs12 -export -clcerts -in $base/client/client.crt -inkey $base/client/client.key -out $base/client/client.p12

OpenSSL配置文件

HOME                    = .RANDFILE                = $ENV::HOME/.rnd# Extra OBJECT IDENTIFIER info:#oid_file               = $ENV::HOME/.oidoid_section             = new_oids# To use this configuration file with the "-extfile" option of the# "openssl x509" utility, name here the section containing the# X.509v3 extensions to use:# extensions            =# (Alternatively, use a configuration file that has only# X.509v3 extensions in its main [= default] section.)[ new_oids ]# We can add new OIDs in here for use by 'ca', 'req' and 'ts'.# Add a simple OID like this:# testoid1=1.2.3.4# Or use config file substitution like this:# testoid2=${testoid1}.5.6# Policies used by the TSA examples.tsa_policy1 = 1.2.3.4.1tsa_policy2 = 1.2.3.4.5.6tsa_policy3 = 1.2.3.4.5.7[ req ]default_bits            = 2048default_md              = sha1distinguished_name      = req_distinguished_namestring_mask = defaultx509_extensions = v3_req[ req_distinguished_name ]countryName                     = Country Name (2 letter code)countryName_default             = CNcountryName_min                 = 2countryName_max                 = 2stateOrProvinceName             = State or Province Name (full name)stateOrProvinceName_default     = ShangHailocalityName                    = Locality Name (eg, city)localityName_default            = ShangHai0.organizationName              = Organization Name (eg, company)0.organizationName_default      = IdealGroup# we can do this but it is not needed normally :-)#1.organizationName             = Second Organization Name (eg, company)#1.organizationName_default     = World Wide Web Pty LtdorganizationalUnitName          = Organizational Unit Name (eg, section)organizationalUnitName_default  = IdealMobilecommonName                      = Common Name (e.g. server FQDN or YOUR name)commonName_max                  = 64emailAddress                    = Email AddressemailAddress_max                = 64[ v3_server ]subjectKeyIdentifier=hashauthorityKeyIdentifig=keyid:always,issuerbasicConstraints = CA:falsekeyUsage = di`italSignature, keyEnciphermentextendedKeyUsage = serverAuth[ v3_ca ]subjectKeyIdentifier=hashauthorityKeyIdentifier=keyid:always,issuerbasicConstraints = CA:truekeyUsage = cRLSign, keyCertSign#keyUsage = digitalSignature, keyEncipherment#extendedKeyUsage = serverAuth#subjectAltNam=DNS:win.linyiheng.cn[ v3_req ]basicConstraints = CA:FALSE[ ca ]default_ca      = foo                   # The default ca section[ foo ]dir            = /root/ca         # top dirdatabase       = /root/ca/index.txt          # index file.new_certs_dir  = /root/ca/newcerts           # new certs dircertificate    = /root/ca/private/ca.crt         # The CA certserial         = /root/ca/serial             # serial no fileprivate_key    = /root/ca/private/ca.key  # CA private keyRANDFILE       = /root/ca/private/.rand      # random number filedefault_days   = 3650                     # how long to certify fordefault_crl_days = 3000                     # how long before next CRLdefault_md     = sha1                     # message digest method to useunique_subject = no                      # Set to 'no' to allow creation of                                         # several ctificates with same subject.policy         = policy_any              # default policy[ policy_any ]countryName = optionalstateOrProvinceName = optionalorganizationName = optionalorganizationalUnitName = optionallocalityName            = optionalcommonName              = suppliedemailAddress            = optional