Class: CyberplatPKI::PrivateKeyPacket

Inherits:
KeyPacket show all
Defined in:
lib/cyberplat_pki/private_key_packet.rb

Instance Attribute Summary

Attributes inherited from KeyPacket

#algorithm, #key, #serial, #timestamp, #valid_days

Class Method Summary collapse

Instance Method Summary collapse

Methods inherited from Packet

save

Class Method Details

.load(io, context) ⇒ Object 



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# File 'lib/cyberplat_pki/private_key_packet.rb', line 3

def self.load(io, context)
  key = super

  cipher = io.readbyte
  raise "CyberplatPKI: CRYPT_ERR_INVALID_PACKET_FORMAT (unsupported private key cipher: #{cipher})" if cipher != 1 # IDEA-CFB + MD5

  iv = io.read 8
  context.decrypt iv

  public_key = key.key
  key.key = OpenSSL::PKey::RSA.new

  io.cipher = context
  io.checksum = 0

  key.key.d = io.read_mpi
  key.key.p = io.read_mpi
  key.key.q = io.read_mpi
  dummy     = io.read_mpi

  calculated_checksum = io.checksum

  io.checksum = nil
  io.cipher = nil

  checksum, = io.read(2).unpack("n")
  raise "CyberplatPKI: CRYPT_ERR_INVALID_PASSWD (invalid MPI checksum. Expected #{checksum.to_s 16}, calculated #{calculated_checksum.to_s 16})" if checksum != calculated_checksum

  key.key.dmp1 = key.key.d % (key.key.p - 1)
  key.key.dmq1 = key.key.d % (key.key.q - 1)
  key.key.iqmp = key.key.q.mod_inverse key.key.p

  # jruby-openssl requires public key parameters to be set LAST
  key.key.n = public_key.n
  key.key.e = public_key.e

  key
end

Instance Method Details

#save(io, context) ⇒ Object

Raises:

  • (NotImplementedError) 


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# File 'lib/cyberplat_pki/private_key_packet.rb', line 42

def save(io, context)
  super

  raise NotImplementedError, "CyberplatPKI: PrivateKeyPacket#save is not implemented"
end