Class: Ccrypto::X509CSR

Inherits:
Object
  • Object
show all
Includes:
Java::DataConversion, TR::CondUtils, TeLogger::TeLogHelper
Defined in:
lib/ccrypto/java/ext/x509_csr.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from Java::DataConversion

#from_b64, #from_b64_mime, #from_hex, included, #logger, #to_b64, #to_b64_mime, #to_hex, #to_java_bytes, #to_str

Constructor Details

#initialize(csr) ⇒ X509CSR

Returns a new instance of X509CSR.



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# File 'lib/ccrypto/java/ext/x509_csr.rb', line 17

def initialize(csr)
  @nativeCSR = csr
end

Instance Attribute Details

#request_subject_full ⇒ Object (readonly)

Returns the value of attribute request_subject_full.



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# File 'lib/ccrypto/java/ext/x509_csr.rb', line 15

def request_subject_full
  @request_subject_full
end

Instance Method Details

#csr_info ⇒ Object 



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# File 'lib/ccrypto/java/ext/x509_csr.rb', line 42

def csr_info
  if @csrInfo.nil?
    @csrInfo = parseCSR(@nativeCSR)
  end
  @csrInfo
end

#parseCSR(csrBin) ⇒ Object

Raises:

  • (X509CSRSignatureInvalid) 


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# File 'lib/ccrypto/java/ext/x509_csr.rb', line 49

def parseCSR(csrBin)

  case csrBin
  when ::Java::byte[]
    csr = org.bouncycastle.pkcs.jcajce.JcaPKCS10CertificationRequest.new(csrBin)

  when String
    # this assumed input is a PEM formatted content
    reader = org.bouncycastle.openssl.PEMParser.new(java.io.InputStreamReader.new(java.io.ByteArrayInputStream.new(to_java_bytes(csrBin))))
    csr = reader.readObject
    raise X509CSRException, "Given CSR string to load does not encapsulate a CSR structure. It is read as '#{csr.class.name}'" if not csr.is_a?(org.bouncycastle.pkcs::PKCS10CertificationRequest)

  when Ccrypto::X509CSR
    csr = csrBin.nativeCSR

  else
    raise X509CSRException, "Unknown how to handle CSR of format #{csrBin.class}"

  end


  cvProv = org.bouncycastle.operator.jcajce.JcaContentVerifierProviderBuilder.new.build(csr.getSubjectPublicKeyInfo)
  # 18 Apr 2023
  # Not all curves are supported under X509 I think. At least those not well known curve such as B-163 from BC
  # not able to verify the signature
  raise X509CSRSignatureInvalid, "CSR signature is not valid" if not csr.isSignatureValid(cvProv)

  certProfile = Ccrypto::X509::CertProfile.new

  @request_subject_full = csr.getSubject.to_s
  subj = csr.getSubject.to_s
  subj.split(",").each do |e|
    ee = e.split("=")
    case ee[0]
    when "CN"
      certProfile.owner_name = ee[1]
    when "O"
      certProfile.org = ee[1]
    when "OU"
      certProfile.org_unit = ee[1]
    when "E"
      certProfile.email = ee[1]
    end
  end


  pubKeyParam = org.bouncycastle.crypto.util.PublicKeyFactory.createKey(csr.subject_public_key_info)
  curveName = org.bouncycastle.asn1.x9.ECNamedCurveTable.get_name(pubKeyParam.parameters.name)

  spec = org.bouncycastle.jcajce.provider.asymmetric.util.EC5Util.convertToSpec(pubKeyParam.getParameters)
  point= org.bouncycastle.jcajce.provider.asymmetric.util.EC5Util.convertPoint(pubKeyParam.getQ)
  pubKeySpec = java.security.spec.ECPublicKeySpec.new(point, spec)
  pubKey = java.security.KeyFactory.getInstance("EC", Ccrypto::Java::JCEProvider::DEFProv).generatePublic(pubKeySpec)
  certProfile.public_key = Ccrypto::Java::ECCPublicKey.new(pubKey, curveName)

  csr.attributes.each do |att|
 
    ext = org.bouncycastle.asn1.x509.Extensions.getInstance(att.getAttrValues.getObjectAt(0))

    gns = org.bouncycastle.asn1.x509.GeneralNames.fromExtensions(ext,org.bouncycastle.asn1.x509.Extension.subjectAlternativeName)
    gns.getNames.each do |n|
      #p n.getTagNo
      case n.getTagNo
      when org.bouncycastle.asn1.x509.GeneralName.dNSName
        certProfile.dns_name = n.getName.to_s
      when org.bouncycastle.asn1.x509.GeneralName.iPAddress
        val = org.bouncycastle.asn1.DEROctetString.getInstance(n.getName.toASN1Primitive).getOctets
        begin
          certProfile.ip_addr = java.net.InetAddress.getByAddress(val).getHostAddress
        rescue java.net.UnknownHostException => ex
          certProfile.ip_addr = "Error decoding IP address : #{ex.message}"
          teLogger.error "Failed to decode IP address from CSR"
          teLogger.error ex.message
          teLogger.error ex.backtrace.join("\n")
        end
      when org.bouncycastle.asn1.x509.GeneralName.uniformResourceIdentifier
        certProfile.uri = n.getName.to_s
      when org.bouncycastle.asn1.x509.GeneralName.rfc822Name
        certProfile.email = n.getName.to_s
      when org.bouncycastle.asn1.x509.GeneralName.otherName
        ext = org.bouncycastle.asn1.x509.Extension.getInstance(n.getName)
        certProfile.custom_extension[ext.extnId.to_s] = { value: ext.extnValue.octets.to_s, critical: ext.critical?, type: :string }
      else
        teLogger.debug "Unknown field tag no #{n.getTagNo}"
      end
    end

    ext.oids.each do |o|
      v = ext.getExtension(o)
      next if v.extnId.to_s == org.bouncycastle.asn1.x509.Extension.subjectAlternativeName.to_s

      certProfile.custom_extension[v.extnId.to_s] = { value: v.extnValue.octets.to_s, critical: v.critical?, type: :string }
    end

  
  end

  certProfile
  
end

#to_bin ⇒ Object 



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# File 'lib/ccrypto/java/ext/x509_csr.rb', line 21

def to_bin
  @nativeCSR.encoded
end

#to_pem ⇒ Object 



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# File 'lib/ccrypto/java/ext/x509_csr.rb', line 25

def to_pem

  baos = java.io.ByteArrayOutputStream.new

  writer = org.bouncycastle.openssl.jcajce.JcaPEMWriter.new(java.io.OutputStreamWriter.new(baos))

  begin
    writer.writeObject(@nativeCSR)
  ensure
    writer.flush
    writer.close  
  end 

  baos.toByteArray
  
end