corrade-nucleus-nucleons – Blame information for rev 4
?pathlinks?
Rev | Author | Line No. | Line |
---|---|---|---|
2 | office | 1 | /* |
2 | CryptoJS v3.1.2 |
||
3 | code.google.com/p/crypto-js |
||
4 | (c) 2009-2013 by Jeff Mott. All rights reserved. |
||
5 | code.google.com/p/crypto-js/wiki/License |
||
6 | */ |
||
7 | (function () { |
||
8 | // Shortcuts |
||
9 | var C = CryptoJS; |
||
10 | var C_lib = C.lib; |
||
11 | var Base = C_lib.Base; |
||
12 | var C_enc = C.enc; |
||
13 | var Utf8 = C_enc.Utf8; |
||
14 | var C_algo = C.algo; |
||
15 | |||
16 | /** |
||
17 | * HMAC algorithm. |
||
18 | */ |
||
19 | var HMAC = C_algo.HMAC = Base.extend({ |
||
20 | /** |
||
21 | * Initializes a newly created HMAC. |
||
22 | * |
||
23 | * @param {Hasher} hasher The hash algorithm to use. |
||
24 | * @param {WordArray|string} key The secret key. |
||
25 | * |
||
26 | * @example |
||
27 | * |
||
28 | * var hmacHasher = CryptoJS.algo.HMAC.create(CryptoJS.algo.SHA256, key); |
||
29 | */ |
||
30 | init: function (hasher, key) { |
||
31 | // Init hasher |
||
32 | hasher = this._hasher = new hasher.init(); |
||
33 | |||
34 | // Convert string to WordArray, else assume WordArray already |
||
35 | if (typeof key == 'string') { |
||
36 | key = Utf8.parse(key); |
||
37 | } |
||
38 | |||
39 | // Shortcuts |
||
40 | var hasherBlockSize = hasher.blockSize; |
||
41 | var hasherBlockSizeBytes = hasherBlockSize * 4; |
||
42 | |||
43 | // Allow arbitrary length keys |
||
44 | if (key.sigBytes > hasherBlockSizeBytes) { |
||
45 | key = hasher.finalize(key); |
||
46 | } |
||
47 | |||
48 | // Clamp excess bits |
||
49 | key.clamp(); |
||
50 | |||
51 | // Clone key for inner and outer pads |
||
52 | var oKey = this._oKey = key.clone(); |
||
53 | var iKey = this._iKey = key.clone(); |
||
54 | |||
55 | // Shortcuts |
||
56 | var oKeyWords = oKey.words; |
||
57 | var iKeyWords = iKey.words; |
||
58 | |||
59 | // XOR keys with pad constants |
||
60 | for (var i = 0; i < hasherBlockSize; i++) { |
||
61 | oKeyWords[i] ^= 0x5c5c5c5c; |
||
62 | iKeyWords[i] ^= 0x36363636; |
||
63 | } |
||
64 | oKey.sigBytes = iKey.sigBytes = hasherBlockSizeBytes; |
||
65 | |||
66 | // Set initial values |
||
67 | this.reset(); |
||
68 | }, |
||
69 | |||
70 | /** |
||
71 | * Resets this HMAC to its initial state. |
||
72 | * |
||
73 | * @example |
||
74 | * |
||
75 | * hmacHasher.reset(); |
||
76 | */ |
||
77 | reset: function () { |
||
78 | // Shortcut |
||
79 | var hasher = this._hasher; |
||
80 | |||
81 | // Reset |
||
82 | hasher.reset(); |
||
83 | hasher.update(this._iKey); |
||
84 | }, |
||
85 | |||
86 | /** |
||
87 | * Updates this HMAC with a message. |
||
88 | * |
||
89 | * @param {WordArray|string} messageUpdate The message to append. |
||
90 | * |
||
91 | * @return {HMAC} This HMAC instance. |
||
92 | * |
||
93 | * @example |
||
94 | * |
||
95 | * hmacHasher.update('message'); |
||
96 | * hmacHasher.update(wordArray); |
||
97 | */ |
||
98 | update: function (messageUpdate) { |
||
99 | this._hasher.update(messageUpdate); |
||
100 | |||
101 | // Chainable |
||
102 | return this; |
||
103 | }, |
||
104 | |||
105 | /** |
||
106 | * Finalizes the HMAC computation. |
||
107 | * Note that the finalize operation is effectively a destructive, read-once operation. |
||
108 | * |
||
109 | * @param {WordArray|string} messageUpdate (Optional) A final message update. |
||
110 | * |
||
111 | * @return {WordArray} The HMAC. |
||
112 | * |
||
113 | * @example |
||
114 | * |
||
115 | * var hmac = hmacHasher.finalize(); |
||
116 | * var hmac = hmacHasher.finalize('message'); |
||
117 | * var hmac = hmacHasher.finalize(wordArray); |
||
118 | */ |
||
119 | finalize: function (messageUpdate) { |
||
120 | // Shortcut |
||
121 | var hasher = this._hasher; |
||
122 | |||
123 | // Compute HMAC |
||
124 | var innerHash = hasher.finalize(messageUpdate); |
||
125 | hasher.reset(); |
||
126 | var hmac = hasher.finalize(this._oKey.clone().concat(innerHash)); |
||
127 | |||
128 | return hmac; |
||
129 | } |
||
130 | }); |
||
131 | }()); |