Class: Ccrypto::Java::ASN1Engine

Inherits:
Object
  • Object
show all
Extended by:
DataConversion
Includes:
TR::CondUtils, TeLogger::TeLogHelper
Defined in:
lib/ccrypto/java/engines/asn1_engine.rb

Class Method Summary collapse

Methods included from DataConversion

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

Class Method Details

.asn1_length(*args, &block) ⇒ Object 



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# File 'lib/ccrypto/java/engines/asn1_engine.rb', line 134

def self.asn1_length(*args, &block)
  val = args.first
  if not_empty?(val)
    if val.is_a?(ASN1Object)
      v = val.native_asn1
    elsif val.is_a?(String)
      v = val.to_java_bytes
    else
      v = val
    end

    totalLen = 0

    ais = org.bouncycastle.asn1.ASN1InputStream.new(v)
    res = ais.readObject
    totalLen = res.encoded.length

    totalLen

  else
    0
  end
end

.build(*args, &block) ⇒ Object 



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# File 'lib/ccrypto/java/engines/asn1_engine.rb', line 19

def self.build(*args,&block)
  type = args.first
  val = args[1]
  case type
  when :oid
    ASN1Object.new(type,org.bouncycastle.asn1.ASN1ObjectIdentifier.new(val))

  when :seq
    v = org.bouncycastle.asn1.ASN1EncodableVector.new
    val.each do |vv|
      if vv.is_a?(::Java::byte[])
        v.add(org.bouncycastle.asn1.DERBitString.new(vv))
      else
        v.add(vv)
      end
    end
    ASN1Object.new(type,org.bouncycastle.asn1.DERSequence.new(v))

  when :str, :utf8_str
    ASN1Object.new(type,org.bouncycastle.asn1.DERUTF8String.new(val.to_s))

  when :octet_str
    if val.is_a?(Array)
      val = val.pack("c*").to_java_bytes
    elsif val.respond_to?(:to_bin)
      val = val.to_bin
    end

    ASN1Object.new(type, val)

  when :int
    #ASN1Object.new(type,org.bouncycastle.asn1.DERInteger.new(val))
    ASN1Object.new(type,org.bouncycastle.asn1.ASN1Integer.new(val))
    #Java::OrgBouncycastleAsn1::DERInteger.new(val)

  when :bin
    ASN1Object.new(type,org.bouncycastle.asn1.DERBitString.new(to_java_bytes(val)))
    #baos = java.io.ByteArrayOutputStream.new
    #aos = org.bouncycastle.asn1.ASN1OutputStream.new(baos)
    #aos.writeObject(org.bouncycastle.asn1.DERBitString.new(to_java_bytes(val)))
    #aos.flush
    #aos.close

    #baos

  when :date, :time, :generalize_time
    if val.is_a?(Time)
      val = val.to_java
    elsif not val.is_a?(java.util.Date)
      raise ASN1EngineException, "Unknown datetime objec to convert ['#{val.class}']"
    end
    
    #ASN1Object.new(type,org.bouncycastle.asn1.DERUTCTime.new(val))
    ASN1Object.new(type,org.bouncycastle.asn1.DERGeneralizedTime.new(val))

  else
    raise ASN1EngineException, "Unknown ASN1 Object type '#{type.class}'"
  end
end

.to_value(*args, &block) ⇒ Object 



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# File 'lib/ccrypto/java/engines/asn1_engine.rb', line 80

def self.to_value(*args, &block)

  val = args.first
  #teLogger.debug "Received #{val}"

  expectedType = args[1]

  if val.is_a?(::Java::byte[])
    ais = org.bouncycastle.asn1.ASN1InputStream.new(val)
    tag = ais.readObject
  elsif val.is_a?(String)
    ais = org.bouncycastle.asn1.ASN1InputStream.new(val.to_java_bytes)
    tag = ais.readObject
  else
    tag = val
  end
  #raise ASN1EngineException, "Byte array is expected" if not val.is_a?(::Java::byte[])

  #teLogger.debug "Tag : #{tag} / #{tag.class}"

  case tag
  when org.bouncycastle.asn1.ASN1ObjectIdentifier
    tag.id

  when org.bouncycastle.asn1.DEROctetString
    tag.octets

  when org.bouncycastle.asn1.ASN1Integer
    #tag.int_value_exact
    tag.value

  when org.bouncycastle.asn1.DLSequence, org.bouncycastle.asn1.DERSequence
    tag.to_a

  when org.bouncycastle.asn1.DERUTF8String, org.bouncycastle.asn1.DERPrintableString, org.bouncycastle.asn1.DERVisibleString
    tag.to_s

  when org.bouncycastle.asn1.DERNumericString
    "#{tag.to_i}"

  when org.bouncycastle.asn1.DERUTCTime, org.bouncycastle.asn1.ASN1UTCTime, org.bouncycastle.asn1.ASN1GeneralizedTime
    tag.date

  when org.bouncycastle.asn1.DERBitString
    tag.bytes

  else
    raise ASN1EngineException, "Unknown type '#{tag}'"
  end



end