Ruby生成自签名证书

Question

我正在尝试在Ruby中生成自签名证书，但是遇到了麻烦。以下是我当前的代码：

require 'openssl'

if ARGV.length != 3 then
    puts "USAGE: #{__FILE__} <type[der|pem]> <private-out> <public-out>"
    exit
end

type = ARGV[0].downcase
privateKeyFile = ARGV[1]
publicKeyFile = ARGV[2]

values = [{ 'C' => 'US'},
          {'ST' => 'SomeState'},
          { 'L' => 'SomeCity'},
          { 'O' => 'Organization'},
          {'OU' => 'Organizational Unit'},
          {'CN' => "somesite.com"}]

name = values.collect{ |l| l.collect { |k, v| "/#{k}=#{v}" }.join }.join

key = OpenSSL::PKey::RSA.generate(1024)
pub = key.public_key
ca = OpenSSL::X509::Name.parse(name)
cert = OpenSSL::X509::Certificate.new
cert.version = 2 
cert.serial = 1 
cert.subject = ca
cert.issuer = ca
cert.public_key = pub 
cert.not_before = Time.now
cert.not_before = Time.now + (360 * 24 * 3600)

File.open(privateKeyFile + "." + type, "w") {|f| f.write key.send("to_#{type}") }
File.open(publicKeyFile + "." + type, "w") {|f| f.write cert.send("to_#{type}") }

当我尝试在apache中使用生成的私钥和证书时，出现以下错误：

[Thu Mar 04 10:58:44 2010] [error] Init: Unable to read server certificate from file /etc/ssl/certs/gnarly.pem
[Thu Mar 04 10:58:44 2010] [error] SSL Library Error: 218529960 error:0D0680A8:asn1 encoding routines:ASN1_CHECK_TLEN:wrong tag
[Thu Mar 04 10:58:44 2010] [error] SSL Library Error: 218595386 error:0D07803A:asn1 encoding routines:ASN1_ITEM_EX_D2I:nested asn1 error

这是我的证书上写的内容：

-----BEGIN CERTIFICATE-----
<lots of stuff>
-----END CERTIFICATE-----

它自称为证书，而不是CSR，这与我在网上找到的大多数关于apache2错误的说法不同（可能我混淆了CSR和CERT）。 我猜想我没有生成正确类型的证书。也许我必须更改序列或版本属性。此外，我没有任何自签名的操作，至少我不知道。但我知道你可以像这样做：

require "openssl"
key = OpenSSL::PKey::RSA.generate(1024)
signature = key.sign(OpenSSL::Digest::SHA1.new, "data to sign")

提醒：我的目标是生成一个自签名证书，以防我的问题太长而失去焦点。

编辑：我想真正的问题是如何使用密钥签署证书。

- Markus Orrelly

---

有兴趣的人可以看一下我用Ruby准备的CSR示例，链接在这里：https://gist.github.com/1922961 - mtfk

Answer 1

我从谷歌搜索中发现了nickyp的代码片段，并直接使用其中的代码创建了一个辅助类。你只需要安装openssl宝石(gem install openssl)即可，无需其他依赖。

require 'openssl'

class SelfSignedCertificate
  def initialize
    @key = OpenSSL::PKey::RSA.new(1024)
    public_key = @key.public_key

    subject = "/C=BE/O=Test/OU=Test/CN=Test"

    @cert = OpenSSL::X509::Certificate.new
    @cert.subject = @cert.issuer = OpenSSL::X509::Name.parse(subject)
    @cert.not_before = Time.now
    @cert.not_after = Time.now + 365 * 24 * 60 * 60
    @cert.public_key = public_key
    @cert.serial = 0x0
    @cert.version = 2

    ef = OpenSSL::X509::ExtensionFactory.new
    ef.subject_certificate = @cert
    ef.issuer_certificate = @cert
    @cert.extensions = [
        ef.create_extension("basicConstraints","CA:TRUE", true),
        ef.create_extension("subjectKeyIdentifier", "hash"),
    # ef.create_extension("keyUsage", "cRLSign,keyCertSign", true),
    ]
    @cert.add_extension ef.create_extension("authorityKeyIdentifier",
                                           "keyid:always,issuer:always")

    @cert.sign @key, OpenSSL::Digest::SHA1.new
  end

  def self_signed_pem
    @cert.to_pem
  end

  def private_key
    @key
  end
end

用法：

my_cert = SelfSignedCertificate.new
puts "Private Key:\n#{my_cert.private_key}"
puts "Self-signed PEM:\n#{my_cert.self_signed_pem}"

输出：

Private Key:
-----BEGIN RSA PRIVATE KEY-----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-----END RSA PRIVATE KEY-----
Signed PEM:
-----BEGIN CERTIFICATE-----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-----END CERTIFICATE-----

- Eternal Rubyist

Answer 2

webrick/ssl 中有一个 create_self_signed_cert 方法，它易于理解且实用。

- Tsing

---

请提供一个用法示例？ - Nabheet

cert, rsa = WEBrick::Utils.create_self_signed_cert 1024, [["CN", "localhost"]], "" - puchu

请记住 require 'webrick/https'。 - new2cpp

Answer 3

我已经找到了几个非常好的使用OpenSSL示例的资源：

http://snippets.dzone.com/posts/show/6309

http://projects.reductivelabs.com/projects/puppet/repository/revisions/master/entry/lib/puppet/sslcertificates.rb

http://projects.reductivelabs.com/projects/puppet/repository/revisions/master/entry/lib/puppet/sslcertificates/ca.rb

http://projects.reductivelabs.com/projects/puppet/repository/revisions/master/entry/lib/puppet/sslcertificates/certificate.rb

我仍然没有找到任何好的文档，虽然我认为写下示例中的内容不会花费太长时间。

我也已经从 Puppet 源代码中找到了我想要的方法。希望这能帮助其他对 Ruby 中 OpenSSL 缺乏文档感到沮丧的人。

- Markus Orrelly

---

啊……网络的短暂本质。不到两年的时间，以上所有链接都已失效。 - Mark Thomas

Puppet的源代码结构也发生了变化，但是可以从他们的GitHub存储库中获取相同的一般信息：https://github.com/puppetlabs/puppet/tree/master/lib/puppet/ssl - Seth V

所有的链接都已损坏 - Palsri