/usr/lib/ruby/vendor_ruby/certificate_authority/certificate.rb is in ruby-certificate-authority 0.2.0~6dd483bf-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 | module CertificateAuthority
class Certificate
include Validations
include Revocable
attr_accessor :distinguished_name
attr_accessor :serial_number
attr_accessor :key_material
attr_accessor :not_before
attr_accessor :not_after
attr_accessor :extensions
attr_accessor :openssl_body
alias :subject :distinguished_name #Same thing as the DN
attr_accessor :parent
def validate
errors.add :base, "Distinguished name must be valid" unless distinguished_name.valid?
errors.add :base, "Key material must be valid" unless key_material.valid?
errors.add :base, "Serial number must be valid" unless serial_number.valid?
errors.add :base, "Extensions must be valid" unless extensions.each do |item|
unless item.respond_to?(:valid?)
true
else
item.valid?
end
end
end
def initialize
self.distinguished_name = DistinguishedName.new
self.serial_number = SerialNumber.new
self.key_material = MemoryKeyMaterial.new
self.not_before = Date.today.utc
self.not_after = Date.today.advance(:years => 1).utc
self.parent = self
self.extensions = load_extensions()
self.signing_entity = false
end
=begin
def self.from_openssl openssl_cert
unless openssl_cert.is_a? OpenSSL::X509::Certificate
raise "Can only construct from an OpenSSL::X509::Certificate"
end
certificate = Certificate.new
# Only subject, key_material, and body are used for signing
certificate.distinguished_name = DistinguishedName.from_openssl openssl_cert.subject
certificate.key_material.public_key = openssl_cert.public_key
certificate.openssl_body = openssl_cert
certificate.serial_number.number = openssl_cert.serial.to_i
certificate.not_before = openssl_cert.not_before
certificate.not_after = openssl_cert.not_after
# TODO extensions
certificate
end
=end
def sign!(signing_profile={})
raise "Invalid certificate #{self.errors.full_messages}" unless valid?
merge_profile_with_extensions(signing_profile)
openssl_cert = OpenSSL::X509::Certificate.new
openssl_cert.version = 2
openssl_cert.not_before = self.not_before
openssl_cert.not_after = self.not_after
openssl_cert.public_key = self.key_material.public_key
openssl_cert.serial = self.serial_number.number
openssl_cert.subject = self.distinguished_name.to_x509_name
openssl_cert.issuer = parent.distinguished_name.to_x509_name
require 'tempfile'
t = Tempfile.new("bullshit_conf")
## The config requires a file even though we won't use it
openssl_config = OpenSSL::Config.new(t.path)
factory = OpenSSL::X509::ExtensionFactory.new
factory.subject_certificate = openssl_cert
#NB: If the parent doesn't have an SSL body we're making this a self-signed cert
if parent.openssl_body.nil?
factory.issuer_certificate = openssl_cert
else
factory.issuer_certificate = parent.openssl_body
end
self.extensions.keys.each do |k|
config_extensions = extensions[k].config_extensions
openssl_config = merge_options(openssl_config,config_extensions)
end
# p openssl_config.sections
factory.config = openssl_config
# Order matters: e.g. for self-signed, subjectKeyIdentifier must come before authorityKeyIdentifier
self.extensions.keys.sort{|a,b| b<=>a}.each do |k|
e = extensions[k]
next if e.to_s.nil? or e.to_s == "" ## If the extension returns an empty string we won't include it
ext = factory.create_ext(e.openssl_identifier, e.to_s, e.critical)
openssl_cert.add_extension(ext)
end
if signing_profile["digest"].nil?
digest = OpenSSL::Digest.new("SHA512")
else
digest = OpenSSL::Digest.new(signing_profile["digest"])
end
self.openssl_body = openssl_cert.sign(parent.key_material.private_key, digest)
ensure
t.close! if t # We can get rid of the ridiculous temp file
end
def is_signing_entity?
self.extensions["basicConstraints"].ca
end
def signing_entity=(signing)
self.extensions["basicConstraints"].ca = signing
end
def revoked?
!self.revoked_at.nil?
end
def to_pem
raise "Certificate has no signed body" if self.openssl_body.nil?
self.openssl_body.to_pem
end
def to_csr
csr = SigningRequest.new
csr.distinguished_name = self.distinguished_name
csr.key_material = self.key_material
factory = OpenSSL::X509::ExtensionFactory.new
exts = []
self.extensions.keys.each do |k|
## Don't copy over key identifiers for CSRs
next if k == "subjectKeyIdentifier" || k == "authorityKeyIdentifier"
e = extensions[k]
## If the extension returns an empty string we won't include it
next if e.to_s.nil? or e.to_s == ""
exts << factory.create_ext(e.openssl_identifier, e.to_s, e.critical)
end
attrval = OpenSSL::ASN1::Set([OpenSSL::ASN1::Sequence(exts)])
attrs = [
OpenSSL::X509::Attribute.new("extReq", attrval),
OpenSSL::X509::Attribute.new("msExtReq", attrval)
]
csr.attributes = attrs
csr
end
def self.from_x509_cert(raw_cert)
openssl_cert = OpenSSL::X509::Certificate.new(raw_cert)
Certificate.from_openssl(openssl_cert)
end
def is_root_entity?
self.parent == self && is_signing_entity?
end
def is_intermediate_entity?
(self.parent != self) && is_signing_entity?
end
private
def merge_profile_with_extensions(signing_profile={})
return self.extensions if signing_profile["extensions"].nil?
signing_config = signing_profile["extensions"]
signing_config.keys.each do |k|
extension = self.extensions[k]
items = signing_config[k]
items.keys.each do |profile_item_key|
if extension.respond_to?("#{profile_item_key}=".to_sym)
if k == 'subjectAltName' && profile_item_key == 'emails'
items[profile_item_key].map do |email|
if email == 'email:copy'
fail "no email address provided for subject: #{subject.to_x509_name}" unless subject.email_address
"email:#{subject.email_address}"
else
email
end
end
end
extension.send("#{profile_item_key}=".to_sym, items[profile_item_key] )
else
p "Tried applying '#{profile_item_key}' to #{extension.class} but it doesn't respond!"
end
end
end
end
# Enumeration of the extensions. Not the worst option since
# the likelihood of these needing to be updated is low at best.
EXTENSIONS = [
CertificateAuthority::Extensions::BasicConstraints,
CertificateAuthority::Extensions::CrlDistributionPoints,
CertificateAuthority::Extensions::SubjectKeyIdentifier,
CertificateAuthority::Extensions::AuthorityKeyIdentifier,
CertificateAuthority::Extensions::AuthorityInfoAccess,
CertificateAuthority::Extensions::KeyUsage,
CertificateAuthority::Extensions::ExtendedKeyUsage,
CertificateAuthority::Extensions::SubjectAlternativeName,
CertificateAuthority::Extensions::CertificatePolicies
]
def load_extensions
extension_hash = {}
EXTENSIONS.each do |klass|
extension = klass.new
extension_hash[extension.openssl_identifier] = extension
end
extension_hash
end
def merge_options(config,hash)
hash.keys.each do |k|
config[k] = hash[k]
end
config
end
def self.from_openssl openssl_cert
unless openssl_cert.is_a? OpenSSL::X509::Certificate
raise "Can only construct from an OpenSSL::X509::Certificate"
end
certificate = Certificate.new
# Only subject, key_material, and body are used for signing
certificate.distinguished_name = DistinguishedName.from_openssl openssl_cert.subject
certificate.key_material.public_key = openssl_cert.public_key
certificate.openssl_body = openssl_cert
certificate.serial_number.number = openssl_cert.serial.to_i
certificate.not_before = openssl_cert.not_before
certificate.not_after = openssl_cert.not_after
EXTENSIONS.each do |klass|
_,v,c = (openssl_cert.extensions.detect { |e| e.to_a.first == klass::OPENSSL_IDENTIFIER } || []).to_a
certificate.extensions[klass::OPENSSL_IDENTIFIER] = klass.parse(v, c) if v
end
certificate
end
end
end
|