1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
|
//Copyright 2013 Thomson Reuters Global Resources. BSD License please see License file for more information
// Package NTLM implements the interfaces used for interacting with NTLMv1 and NTLMv2.
// To create NTLM v1 or v2 sessions you would use CreateClientSession and create ClientServerSession.
package ntlm
import (
rc4P "crypto/rc4"
"errors"
)
type Version int
const (
Version1 Version = 1
Version2 Version = 2
)
type Mode int
const (
ConnectionlessMode Mode = iota
ConnectionOrientedMode
)
// Creates an NTLM v1 or v2 client
// mode - This must be ConnectionlessMode or ConnectionOrientedMode depending on what type of NTLM is used
// version - This must be Version1 or Version2 depending on the version of NTLM used
func CreateClientSession(version Version, mode Mode) (n ClientSession, err error) {
switch version {
case Version1:
n = new(V1ClientSession)
case Version2:
n = new(V2ClientSession)
default:
return nil, errors.New("Unknown NTLM Version, must be 1 or 2")
}
return n, nil
}
type ClientSession interface {
SetUserInfo(username string, password string, domain string)
SetMode(mode Mode)
GenerateNegotiateMessage() (*NegotiateMessage, error)
ProcessChallengeMessage(*ChallengeMessage) error
GenerateAuthenticateMessage() (*AuthenticateMessage, error)
Seal(message []byte) ([]byte, error)
Sign(message []byte) ([]byte, error)
Mac(message []byte, sequenceNumber int) ([]byte, error)
VerifyMac(message, expectedMac []byte, sequenceNumber int) (bool, error)
}
// Creates an NTLM v1 or v2 server
// mode - This must be ConnectionlessMode or ConnectionOrientedMode depending on what type of NTLM is used
// version - This must be Version1 or Version2 depending on the version of NTLM used
func CreateServerSession(version Version, mode Mode) (n ServerSession, err error) {
switch version {
case Version1:
n = new(V1ServerSession)
case Version2:
n = new(V2ServerSession)
default:
return nil, errors.New("Unknown NTLM Version, must be 1 or 2")
}
n.SetMode(mode)
return n, nil
}
type ServerSession interface {
SetUserInfo(username string, password string, domain string)
GetUserInfo() (string, string, string)
SetMode(mode Mode)
SetServerChallenge(challege []byte)
ProcessNegotiateMessage(*NegotiateMessage) error
GenerateChallengeMessage() (*ChallengeMessage, error)
ProcessAuthenticateMessage(*AuthenticateMessage) error
GetSessionData() *SessionData
Version() int
Seal(message []byte) ([]byte, error)
Sign(message []byte) ([]byte, error)
Mac(message []byte, sequenceNumber int) ([]byte, error)
VerifyMac(message, expectedMac []byte, sequenceNumber int) (bool, error)
}
// This struct collects NTLM data structures and keys that are used across all types of NTLM requests
type SessionData struct {
mode Mode
user string
password string
userDomain string
NegotiateFlags uint32
negotiateMessage *NegotiateMessage
challengeMessage *ChallengeMessage
authenticateMessage *AuthenticateMessage
serverChallenge []byte
clientChallenge []byte
ntChallengeResponse []byte
lmChallengeResponse []byte
responseKeyLM []byte
responseKeyNT []byte
exportedSessionKey []byte
encryptedRandomSessionKey []byte
keyExchangeKey []byte
sessionBaseKey []byte
mic []byte
ClientSigningKey []byte
ServerSigningKey []byte
ClientSealingKey []byte
ServerSealingKey []byte
clientHandle *rc4P.Cipher
serverHandle *rc4P.Cipher
}
|
