Class: Rex::Proto::Kerberos::Model::ApReq

Inherits:
Element
  • Object
show all
Defined in:
lib/rex/proto/kerberos/model/ap_req.rb

Overview

This class provides a representation of a KRB_AP_REQ definition, containing the Kerberos protocol version number, the message type KRB_AP_REQ, an options field to indicate any options in use, and the ticket and authenticator themselves

Constant Summary

Constants included from Rex::Proto::Kerberos::Model

AP_REP, AP_REQ, AS_REP, AS_REQ, AUTHENTICATOR, ENC_AP_REP_PART, ENC_KRB_CRED_PART, KRB_CRED, KRB_ERROR, TGS_REP, TGS_REQ, TICKET, VERSION

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods inherited from Element

attr_accessor, attributes, #attributes, decode, #initialize

Constructor Details

This class inherits a constructor from Rex::Proto::Kerberos::Model::Element

Instance Attribute Details

#authenticator ⇒ Rex::Proto::Kerberos::Model::EncryptedData

client’s choice of a subkey

Returns:



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# File 'lib/rex/proto/kerberos/model/ap_req.rb', line 26

def authenticator
  @authenticator
end

#msg_type ⇒ Integer

Returns The type of the protocol message.

Returns:

  • (Integer) —

    The type of the protocol message



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# File 'lib/rex/proto/kerberos/model/ap_req.rb', line 16

def msg_type
  @msg_type
end

#options ⇒ Integer

Returns request options, affects processing.

Returns:

  • (Integer) —

    request options, affects processing



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# File 'lib/rex/proto/kerberos/model/ap_req.rb', line 19

def options
  @options
end

#pvno ⇒ Integer

Returns The protocol version number.

Returns:

  • (Integer) —

    The protocol version number



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# File 'lib/rex/proto/kerberos/model/ap_req.rb', line 13

def pvno
  @pvno
end

#ticket ⇒ Rex::Proto::Kerberos::Model::Ticket

Returns The ticket authenticating the client to the server.

Returns:



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# File 'lib/rex/proto/kerberos/model/ap_req.rb', line 22

def ticket
  @ticket
end

Instance Method Details

#decode(input) ⇒ Object

Rex::Proto::Kerberos::Model::ApReq decoding isn’t supported

Raises:

  • (NotImplementedError) 


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# File 'lib/rex/proto/kerberos/model/ap_req.rb', line 31

def decode(input)
  raise ::NotImplementedError, 'AP-REQ decoding not supported'
end

#encode ⇒ String

Encodes the Rex::Proto::Kerberos::Model::ApReq into an ASN.1 String

Returns:

  • (String) 


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# File 'lib/rex/proto/kerberos/model/ap_req.rb', line 38

def encode
  to_asn1.to_der
end

#to_asn1 ⇒ OpenSSL::ASN1::ASN1Data

Returns The ap_req ASN1Data.

Returns:

  • (OpenSSL::ASN1::ASN1Data) —

    The ap_req ASN1Data



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# File 'lib/rex/proto/kerberos/model/ap_req.rb', line 43

def to_asn1
  elems = []

  elems << OpenSSL::ASN1::ASN1Data.new([encode_pvno], 0, :CONTEXT_SPECIFIC)
  elems << OpenSSL::ASN1::ASN1Data.new([encode_msg_type], 1, :CONTEXT_SPECIFIC)
  elems << OpenSSL::ASN1::ASN1Data.new([encode_options], 2, :CONTEXT_SPECIFIC)
  elems << OpenSSL::ASN1::ASN1Data.new([encode_ticket], 3, :CONTEXT_SPECIFIC)
  elems << OpenSSL::ASN1::ASN1Data.new([encode_authenticator], 4, :CONTEXT_SPECIFIC)

  seq = OpenSSL::ASN1::Sequence.new(elems)

  seq_asn1 = OpenSSL::ASN1::ASN1Data.new([seq], AP_REQ, :APPLICATION)
  seq_asn1
end