Module: PkernelJce::Rfc3161::Request

Included in:

Pkernel::Rfc3161::Request, PkernelJce::Rfc3161RequestEngine

Defined in:

lib/pkernel_jce/rfc3161.rb

Overview

end module response

Class Method Summary

• .find_tsp_algo(dgstCal) ⇒ Object

Instance Method Summary

• #generate(opts = { }) ⇒ Object
• #parse(opts = { }) ⇒ Object

  end generate().

Class Method Details

.find_tsp_algo(dgstCal) ⇒ Object

# File 'lib/pkernel_jce/rfc3161.rb', line 351

def Request.find_tsp_algo(dgstCal)
  if dgstCal.nil?
    raise PkernelJce::Error, "Digest calculator not given to derive tsp algo"
  end

  tspHash = nil
  org.bouncycastle.tsp.TSPAlgorithms.constants.each do |al|
    tspAlgo = org.bouncycastle.tsp.TSPAlgorithms.send(al)
    next if not tspAlgo.java_kind_of?(Java::OrgBouncycastleAsn1::ASN1ObjectIdentifier)
    if tspAlgo.toASN1Object.equals(dgstCal.algorithm_identifier.algorithm)
      tspHash = tspAlgo
      break
    end
  end

  tspHash
end

Instance Method Details

#generate(opts = { }) ⇒ Object

# File 'lib/pkernel_jce/rfc3161.rb', line 270

def generate(opts = {  })

  targetFile = opts[:tbts_file]
  targetBin = opts[:tbts_bin]

  reqGen = org.bouncycastle.tsp.TimeStampRequestGenerator.new

  reqCert = opts[:inc_certs] || true
  if reqCert
    reqGen.setCertReq(true)
  end

  reqPolicy = opts[:req_policy]
  if not (reqPolicy.nil? or reqPolicy.empty?)
    reqGen.setReqPolicy(org.bouncycastle.asn1.x509.AlgorithmIdentifier.new(reqPolicy))
  end

  nonce = Java::byte[16].new
  java.util.Random.new.nextBytes(nonce)

  hashAlgo = opts[:hashAlgo] || "SHA256"
  if not hashAlgo.nil?
    hashAlgo = hashAlgo.upcase
    case hashAlgo
    when "SHA224","SHA256","SHA384","SHA512","RIPEMD128","RIPEMD160","RIPEMD256"
      dgstCal = PkernelJce::BcHelpers.find_digest_calculator(hashAlgo)
      
      if not (targetFile.nil? or targetFile.empty?)
        b = Java::byte[10240].new
        fis = java.io.FileInputStream.new(targetFile)
        while((cont = fis.read(b,0,b.length)) != -1)
          dgstCal.getOutputStream.write(b,0,cont)
        end
        dgstCal.getOutputStream.close
        
      elsif not targetBin.nil?
        bin = PkernelJce::IoUtils.ensure_java_bytes(targetBin)
        dgstCal.getOutputStream.write(bin)
        dgstCal.getOutputStream.close
        
      else
        raise PkernelJce::Error, "No to-be-timestamped file or memory input given to timestamp"
      end

    else
      raise PkernelJce::Error, "Unsupported hash algo '#{hashAlgo}'"
    end
  end
  
  digest = dgstCal.digest
  tspHash = PkernelJce::Rfc3161::Request.find_tsp_algo(dgstCal)
  reqGen.generate(tspHash, digest.to_s.to_java_bytes, java.math.BigInteger.new(nonce).abs)
end

#parse(opts = { }) ⇒ Object

end generate()

# File 'lib/pkernel_jce/rfc3161.rb', line 326

def parse(opts = { })
  
  bin = opts[:bin]
  file = opts[:file]

  if not (file.nil? or file.empty?)
    breq = IoUtils.file_to_memory_byte_array(file)
  elsif not bin.nil?
    breq = IoUtils.ensure_java_bytes(bin)
  else
    raise PkernelJce::Error, "No request file or memory is given to parse"
  end

  result = { }
  req = org.bouncycastle.tsp.TimeStampRequest.new(breq)
  
  result[:cert_req] = req.cert_req?
  result[:digest_algo] = req.getMessageImprintAlgOID
  result[:digest] = req.getMessageImprintDigest
  result[:nonce] = req.getNonce.to_s(16)
  result[:policy] = req.req_policy
 
  result 
end