Module: Tem::Toolkit

Included in:
Session
Defined in:
lib/tem/toolkit.rb

Instance Method Summary collapse

Instance Method Details

#tk_delete_key(key_id, authz) ⇒ Object 



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# File 'lib/tem/toolkit.rb', line 65

def tk_delete_key(key_id, authz)
  del_sec = assemble do |s|
    s.ldbc :const => key_id
    s.authk :auth => :key_auth
    s.relk
    s.ldbc :const => 1
    s.outnew
    s.ldbc :const => key_id
    s.outb
    s.halt
    s.label :key_auth
    s.data :tem_ubyte, authz
    s.stack 4
  end
  
  execute del_sec
end

#tk_firmware_ver ⇒ Object 



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# File 'lib/tem/toolkit.rb', line 2

def tk_firmware_ver
  tag = get_tag
  return { :major => read_tem_ubyte(tag, 0), :minor => read_tem_ubyte(tag, 1) }
end

#tk_gen_key(type = :asymmetric, authz = nil) ⇒ Object 



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# File 'lib/tem/toolkit.rb', line 7

def tk_gen_key(type = :asymmetric, authz = nil)
  gen_sec = assemble do |s|
    s.ldbc authz.nil? ? 24 : 4
    s.outnew
    if authz.nil?
      # no authorization given, must generate one
      s.ldbc 20
      s.ldwc :key_auth
      s.dupn :n => 2
      s.rnd
      s.outvb
    end
    s.genkp :type => (type == :asymmetric) ? 0x00 : 0x80
    s.authk :auth => :key_auth 
    s.outw
    s.authk :auth => :key_auth 
    s.outw
    s.halt
    s.label :key_auth
    if authz.nil?
      s.zeros :tem_ubyte, 20
    else
      s.data :tem_ubyte, authz
    end
    s.stack 4
  end
  
  kp_buffer = execute gen_sec
  keys_offset = authz.nil? ? 20 : 0
  k1id = read_tem_ushort kp_buffer, keys_offset
  k2id = read_tem_ushort kp_buffer, keys_offset + 2
  if type == :asymmetric 
    return_val = { :pubk_id => k1id, :privk_id => k2id }
  else
    return_val = { :key_id => k1id }
  end
  return { :authz => authz.nil? ? kp_buffer[0...20] : authz }.merge!(return_val)
end

#tk_post_key(key, authz) ⇒ Object 



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# File 'lib/tem/toolkit.rb', line 83

def tk_post_key(key, authz)
  post_sec = assemble do |s|
    s.ldbc :const => 1
    s.outnew
    s.ldwc :const => :key_data
    s.rdk
    s.authk :auth => :key_auth
    s.outb
    s.halt
    s.label :key_data
    s.data :tem_ubyte, key.to_tem_key
    s.label :key_auth
    s.data :tem_ubyte, authz
    s.stack 4
  end
  id_string = execute post_sec
  return read_tem_ubyte(id_string, 0)
end

#tk_read_key(key_id, authz) ⇒ Object 



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# File 'lib/tem/toolkit.rb', line 46

def tk_read_key(key_id, authz)
  read_sec = assemble do |s|
    s.ldbc :const => key_id
    s.authk :auth => :key_auth
    s.ldkl
    s.outnew
    s.ldbc :const => key_id
    s.ldbc(-1)
    s.stk
    s.halt
    s.label :key_auth
    s.data :tem_ubyte, authz
    s.stack 4
  end
  
  key_string = execute read_sec
  return read_tem_key(key_string, 0)
end