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Commit | Line | Data |
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ef416fc2 | 1 | package com.easysw.cups; |
2 | ||
3 | /** | |
4 | * @version 1.00 06-NOV-2002 | |
bc44d920 | 5 | * @author Apple Inc. |
ef416fc2 | 6 | * |
7 | * Internet Printing Protocol definitions for the Common UNIX Printing | |
8 | * System (CUPS). | |
9 | * | |
bc44d920 | 10 | * Copyright 2007 by Apple Inc. |
ef416fc2 | 11 | * Copyright 1997-2002 by Easy Software Products. |
12 | * | |
13 | * These coded instructions, statements, and computer programs are the | |
bc44d920 | 14 | * property of Apple Inc. and are protected by Federal copyright |
15 | * law. Distribution and use rights are outlined in the file "LICENSE.txt" | |
16 | * which should have been included with this file. If this file is | |
17 | * file is missing or damaged, see the license at "http://www.cups.org/". | |
ef416fc2 | 18 | */ |
19 | ||
20 | /** | |
21 | * Digest MD5 password routines. | |
22 | * | |
23 | * @author TDB | |
24 | * @version 1.0 | |
25 | * @since JDK1.3 | |
26 | */ | |
27 | import java.security.*; | |
28 | ||
29 | public class IPPMD5 | |
30 | { | |
31 | public MessageDigest md = null; | |
32 | static private IPPMD5 md5 = null; | |
33 | private static final char[] hexChars = {'0','1','2','3','4','5','6','7', | |
34 | '8','9','a','b','c','d','e','f'}; | |
35 | ||
36 | /** | |
37 | * Constructor is private so you must use the getInstance method | |
38 | */ | |
39 | private IPPMD5() throws NoSuchAlgorithmException | |
40 | { | |
41 | md = MessageDigest.getInstance("MD5"); | |
42 | } | |
43 | ||
44 | ||
45 | /** | |
46 | * This returns the singleton instance | |
47 | */ | |
48 | public static IPPMD5 getInstance() throws NoSuchAlgorithmException | |
49 | { | |
50 | ||
51 | if (md5 == null) | |
52 | { | |
53 | md5 = new IPPMD5(); | |
54 | } | |
55 | return (md5); | |
56 | } | |
57 | ||
58 | ||
59 | public String hashData(byte[] dataToHash) | |
60 | { | |
61 | return(hexStringFromBytes((calculateHash(dataToHash)))); | |
62 | } | |
63 | ||
64 | ||
65 | private byte[] calculateHash(byte[] dataToHash) | |
66 | { | |
67 | md.update(dataToHash, 0, dataToHash.length); | |
68 | return(md.digest()); | |
69 | } | |
70 | ||
71 | ||
72 | public String hexStringFromBytes(byte[] b) | |
73 | { | |
74 | String hex = ""; | |
75 | int msb; | |
76 | int lsb = 0; | |
77 | int i; | |
78 | ||
79 | // MSB maps to idx 0 | |
80 | for (i = 0; i < b.length; i++) | |
81 | { | |
82 | msb = ((int)b[i] & 0x000000FF) / 16; | |
83 | lsb = ((int)b[i] & 0x000000FF) % 16; | |
84 | // System.out.println("I: " + i + " B: " + b[i] + " MSB: " + | |
85 | // msb + " LSB: " + lsb ); | |
86 | hex = hex + hexChars[msb] + hexChars[lsb]; | |
87 | } | |
88 | return(hex); | |
89 | } | |
90 | ||
91 | ||
92 | ||
93 | ||
94 | ||
95 | public String MD5Digest( String user, String passwd, String realm, | |
96 | String method, String resource, String nonce ) | |
97 | { | |
98 | String tmp; | |
99 | String A1, A2; | |
100 | String auth_string = ""; | |
101 | ||
102 | try | |
103 | { | |
104 | tmp = user + ":" + realm + ":" + passwd; | |
105 | md = MessageDigest.getInstance("MD5"); | |
106 | A1 = hexStringFromBytes(md.digest(tmp.getBytes())); | |
107 | ||
108 | tmp = method + ":" + resource; | |
109 | md = MessageDigest.getInstance("MD5"); | |
110 | A2 = hexStringFromBytes(md.digest(tmp.getBytes())); | |
111 | ||
112 | tmp = A1 + ":" + nonce + ":" + A2; | |
113 | md = MessageDigest.getInstance("MD5"); | |
114 | auth_string = hexStringFromBytes(md.digest(tmp.getBytes())); | |
115 | return(auth_string); | |
116 | } | |
117 | catch (NoSuchAlgorithmException e) | |
118 | { | |
119 | } | |
120 | return(""); | |
121 | ||
122 | } | |
123 | ||
124 | ||
125 | } |