Class: Rex::Proto::Kerberos::Model::PreAuthEncTimeStamp
- Defined in:
- lib/rex/proto/kerberos/model/pre_auth_enc_time_stamp.rb
Overview
This class is a representation of a PA-ENC-TIMESTAMP, an encrypted timestamp sent as pre authenticated data
Constant Summary collapse
- CRYPTO_MSG_TYPE =
1
Constants included from Rex::Proto::Kerberos::Model
AD_IF_RELEVANT, AP_REQ, AS_REP, AS_REQ, AUTHENTICATOR, ERROR_CODES, KDC_OPTION_ALLOW_POST_DATE, KDC_OPTION_ENC_TKT_IN_SKEY, KDC_OPTION_FORWARDABLE, KDC_OPTION_FORWARDED, KDC_OPTION_POST_DATED, KDC_OPTION_PROXIABLE, KDC_OPTION_PROXY, KDC_OPTION_RENEW, KDC_OPTION_RENEWABLE, KDC_OPTION_RENEWABLE_OK, KDC_OPTION_RESERVED, KDC_OPTION_UNUSED_10, KDC_OPTION_UNUSED_11, KDC_OPTION_UNUSED_7, KDC_OPTION_UNUSED_9, KDC_OPTION_VALIDATE, KRB_ERROR, NT_PRINCIPAL, NT_SRV_HST, NT_SRV_INST, NT_SRV_XHST, NT_UID, NT_UNKNOWN, PA_ENC_TIMESTAMP, PA_PAC_REQUEST, PA_PW_SALT, PA_TGS_REQ, TGS_REP, TGS_REQ, TICKET, VERSION
Constants included from Crypto
Crypto::ENC_AS_RESPONSE, Crypto::ENC_KDC_REQUEST_BODY, Crypto::ENC_TGS_RESPONSE, Crypto::RC4_HMAC, Crypto::RSA_MD5
Instance Attribute Summary collapse
-
#pa_time_stamp ⇒ Time
Client’s time.
-
#pausec ⇒ Fixnum
Optional microseconds client’s time.
Instance Method Summary collapse
-
#decode(input) ⇒ self
Decodes a Rex::Proto::Kerberos::Model::PreAuthEncTimeStamp.
-
#encode ⇒ String
Encodes a Rex::Proto::Kerberos::Model::PreAuthEncTimeStamp into an ASN.1 String.
-
#encrypt(etype, key) ⇒ String
Encrypts the Rex::Proto::Kerberos::Model::PreAuthEncTimeStamp.
Methods inherited from Element
attr_accessor, attributes, #attributes, decode, #initialize
Methods included from Crypto::RsaMd5
Methods included from Crypto::Rc4Hmac
#decrypt_rc4_hmac, #encrypt_rc4_hmac
Constructor Details
This class inherits a constructor from Rex::Proto::Kerberos::Model::Element
Instance Attribute Details
#pa_time_stamp ⇒ Time
Returns client’s time.
15 16 17 |
# File 'lib/rex/proto/kerberos/model/pre_auth_enc_time_stamp.rb', line 15 def pa_time_stamp @pa_time_stamp end |
#pausec ⇒ Fixnum
Returns optional microseconds client’s time.
18 19 20 |
# File 'lib/rex/proto/kerberos/model/pre_auth_enc_time_stamp.rb', line 18 def pausec @pausec end |
Instance Method Details
#decode(input) ⇒ self
Decodes a Rex::Proto::Kerberos::Model::PreAuthEncTimeStamp
25 26 27 28 29 30 31 32 33 34 35 36 |
# File 'lib/rex/proto/kerberos/model/pre_auth_enc_time_stamp.rb', line 25 def decode(input) case input when String decode_string(input) when OpenSSL::ASN1::Sequence decode_asn1(input) else raise ::RuntimeError, 'Failed to decode PreAuthEncTimeStamp, invalid input' end self end |
#encode ⇒ String
Encodes a Rex::Proto::Kerberos::Model::PreAuthEncTimeStamp into an ASN.1 String
42 43 44 45 46 47 48 |
# File 'lib/rex/proto/kerberos/model/pre_auth_enc_time_stamp.rb', line 42 def encode pa_time_stamp_asn1 = OpenSSL::ASN1::ASN1Data.new([encode_pa_time_stamp], 0, :CONTEXT_SPECIFIC) pausec_asn1 = OpenSSL::ASN1::ASN1Data.new([encode_pausec], 1, :CONTEXT_SPECIFIC) seq = OpenSSL::ASN1::Sequence.new([pa_time_stamp_asn1, pausec_asn1]) seq.to_der end |
#encrypt(etype, key) ⇒ String
Encrypts the Rex::Proto::Kerberos::Model::PreAuthEncTimeStamp
56 57 58 59 60 61 62 63 64 65 66 67 68 |
# File 'lib/rex/proto/kerberos/model/pre_auth_enc_time_stamp.rb', line 56 def encrypt(etype, key) data = self.encode res = '' case etype when RC4_HMAC res = encrypt_rc4_hmac(data, key, CRYPTO_MSG_TYPE) else raise ::NotImplementedError, 'EncryptedData schema is not supported' end res end |