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
|
//
// System.Web.Security.MembershipHelper
//
// Authors:
// Ben Maurer (bmaurer@users.sourceforge.net)
// Lluis Sanchez Gual (lluis@novell.com)
//
// (C) 2003 Ben Maurer
// Copyright (C) 2005-2010 Novell, Inc (http://www.novell.com)
//
// Permission is hereby granted, free of charge, to any person obtaining
// a copy of this software and associated documentation files (the
// "Software"), to deal in the Software without restriction, including
// without limitation the rights to use, copy, modify, merge, publish,
// distribute, sublicense, and/or sell copies of the Software, and to
// permit persons to whom the Software is furnished to do so, subject to
// the following conditions:
//
// The above copyright notice and this permission notice shall be
// included in all copies or substantial portions of the Software.
//
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
// EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
// MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
// NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
// LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
// OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
// WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
//
using System.Configuration.Provider;
using System.Security.Cryptography;
using System.Web.Configuration;
using System.Web.Util;
namespace System.Web.Security
{
sealed class MembershipHelper
: IMembershipHelper
{
internal const int SALT_BYTES = 16;
public int UserIsOnlineTimeWindow {
get { return Membership.UserIsOnlineTimeWindow; }
}
public MembershipProviderCollection Providers {
get { return Membership.Providers; }
}
static SymmetricAlgorithm GetAlgorithm ()
{
MachineKeySection section = MachineKeySection.Config;
if (section.DecryptionKey.StartsWith ("AutoGenerate"))
throw new ProviderException ("You must explicitly specify a decryption key in the <machineKey> section when using encrypted passwords.");
SymmetricAlgorithm sa = section.GetDecryptionAlgorithm ();
if (sa == null)
throw new ProviderException (String.Format ("Unsupported decryption attribute '{0}' in <machineKey> configuration section", section.Decryption));
sa.Key = section.GetDecryptionKey ();
return sa;
}
public byte [] DecryptPassword (byte [] encodedPassword)
{
using (SymmetricAlgorithm sa = GetAlgorithm ()) {
return MachineKeySectionUtils.Decrypt (sa, encodedPassword, 0, encodedPassword.Length);
}
}
public byte[] EncryptPassword (byte[] password)
{
using (SymmetricAlgorithm sa = GetAlgorithm ()) {
return MachineKeySectionUtils.Encrypt (sa, password);
}
}
}
}
|
