Module: Fluent::SecureForward::CertUtil

Defined in:
lib/fluent/plugin/secure_forward/cert_util.rb

Class Method Summary collapse

Class Method Details

.certificates_from_file(path) ⇒ Object 



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# File 'lib/fluent/plugin/secure_forward/cert_util.rb', line 6

def self.certificates_from_file(path)
  data = File.read(path)
  pattern = Regexp.compile('-+BEGIN CERTIFICATE-+\n(?:[^-]*\n)+-+END CERTIFICATE-+\n', Regexp::MULTILINE)
  list = []
  data.scan(pattern){|match| list << OpenSSL::X509::Certificate.new(match)}
  list
end

.generate_ca_pair(opts = {}) ⇒ Object 



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# File 'lib/fluent/plugin/secure_forward/cert_util.rb', line 14

def self.generate_ca_pair(opts={})
  key = OpenSSL::PKey::RSA.generate(opts[:private_key_length])

  issuer = subject = OpenSSL::X509::Name.new
  subject.add_entry('C', opts[:cert_country])
  subject.add_entry('ST', opts[:cert_state])
  subject.add_entry('L', opts[:cert_locality])
  subject.add_entry('CN', opts[:cert_common_name])

  digest = OpenSSL::Digest::SHA256.new

  cert = OpenSSL::X509::Certificate.new
  cert.not_before = Time.at(0)
  cert.not_after = Time.now + 5 * 365 * 86400 # 5 years after
  cert.public_key = key
  cert.serial = 1
  cert.issuer = issuer
  cert.subject = subject
  cert.add_extension OpenSSL::X509::Extension.new('basicConstraints', OpenSSL::ASN1.Sequence([OpenSSL::ASN1::Boolean(true)]))
  cert.sign(key, digest)

  return cert, key
end

.generate_self_signed_server_pair(opts = {}) ⇒ Object 



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# File 'lib/fluent/plugin/secure_forward/cert_util.rb', line 69

def self.generate_self_signed_server_pair(opts={})
  key = OpenSSL::PKey::RSA.generate(opts[:private_key_length])

  issuer = subject = OpenSSL::X509::Name.new
  subject.add_entry('C', opts[:country])
  subject.add_entry('ST', opts[:state])
  subject.add_entry('L', opts[:locality])
  subject.add_entry('CN', opts[:common_name])

  digest = OpenSSL::Digest::SHA256.new

  cert = OpenSSL::X509::Certificate.new
  cert.not_before = Time.at(0)
  cert.not_after = Time.now + 5 * 365 * 86400 # 5 years after
  cert.public_key = key
  cert.serial = 1
  cert.issuer = issuer
  cert.subject  = subject
  cert.sign(key, digest)

  return cert, key
end

.generate_server_pair(opts = {}) ⇒ Object 



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# File 'lib/fluent/plugin/secure_forward/cert_util.rb', line 38

def self.generate_server_pair(opts={})
  key = OpenSSL::PKey::RSA.generate(opts[:private_key_length])

  ca_key = OpenSSL::PKey::RSA.new(File.read(opts[:ca_key_path]), opts[:ca_key_passphrase])
  ca_cert = OpenSSL::X509::Certificate.new(File.read(opts[:ca_cert_path]))
  issuer = ca_cert.issuer

  subject = OpenSSL::X509::Name.new
  subject.add_entry('C', opts[:country])
  subject.add_entry('ST', opts[:state])
  subject.add_entry('L', opts[:locality])
  subject.add_entry('CN', opts[:common_name])

  digest = OpenSSL::Digest::SHA256.new

  cert = OpenSSL::X509::Certificate.new
  cert.not_before = Time.at(0)
  cert.not_after = Time.now + 5 * 365 * 86400 # 5 years after
  cert.public_key = key
  cert.serial = 2
  cert.issuer = issuer
  cert.subject = subject

  cert.add_extension OpenSSL::X509::Extension.new('basicConstraints', OpenSSL::ASN1.Sequence([OpenSSL::ASN1::Boolean(false)]))
  cert.add_extension OpenSSL::X509::Extension.new('nsCertType', 'server')

  cert.sign ca_key, digest

  return cert, key
end