Merge pull request #4 from friendica/master

Fork aligned to red master

1 files changed, 176 insertions, 0 deletions

diff --git a/library/cryptojs/components/rabbit-legacy.js b/library/cryptojs/components/rabbit-legacy.js
new file mode 100644
index 000000000..1766fefac
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+++ b/library/cryptojs/components/rabbit-legacy.js
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+/*
+CryptoJS v3.1.2
+code.google.com/p/crypto-js
+(c) 2009-2013 by Jeff Mott. All rights reserved.
+code.google.com/p/crypto-js/wiki/License
+*/
+(function () {

+    // Shortcuts

+    var C = CryptoJS;

+    var C_lib = C.lib;

+    var StreamCipher = C_lib.StreamCipher;

+    var C_algo = C.algo;

+

+    // Reusable objects

+    var S  = [];

+    var C_ = [];

+    var G  = [];

+

+    /**

+     * Rabbit stream cipher algorithm.

+     *

+     * This is a legacy version that neglected to convert the key to little-endian.

+     * This error doesn't affect the cipher's security,

+     * but it does affect its compatibility with other implementations.

+     */

+    var RabbitLegacy = C_algo.RabbitLegacy = StreamCipher.extend({

+        _doReset: function () {

+            // Shortcuts

+            var K = this._key.words;

+            var iv = this.cfg.iv;

+

+            // Generate initial state values

+            var X = this._X = [

+                K[0], (K[3] << 16) | (K[2] >>> 16),

+                K[1], (K[0] << 16) | (K[3] >>> 16),

+                K[2], (K[1] << 16) | (K[0] >>> 16),

+                K[3], (K[2] << 16) | (K[1] >>> 16)

+            ];

+

+            // Generate initial counter values

+            var C = this._C = [

+                (K[2] << 16) | (K[2] >>> 16), (K[0] & 0xffff0000) | (K[1] & 0x0000ffff),

+                (K[3] << 16) | (K[3] >>> 16), (K[1] & 0xffff0000) | (K[2] & 0x0000ffff),

+                (K[0] << 16) | (K[0] >>> 16), (K[2] & 0xffff0000) | (K[3] & 0x0000ffff),

+                (K[1] << 16) | (K[1] >>> 16), (K[3] & 0xffff0000) | (K[0] & 0x0000ffff)

+            ];

+

+            // Carry bit

+            this._b = 0;

+

+            // Iterate the system four times

+            for (var i = 0; i < 4; i++) {

+                nextState.call(this);

+            }

+

+            // Modify the counters

+            for (var i = 0; i < 8; i++) {

+                C[i] ^= X[(i + 4) & 7];

+            }

+

+            // IV setup

+            if (iv) {

+                // Shortcuts

+                var IV = iv.words;

+                var IV_0 = IV[0];

+                var IV_1 = IV[1];

+

+                // Generate four subvectors

+                var i0 = (((IV_0 << 8) | (IV_0 >>> 24)) & 0x00ff00ff) | (((IV_0 << 24) | (IV_0 >>> 8)) & 0xff00ff00);

+                var i2 = (((IV_1 << 8) | (IV_1 >>> 24)) & 0x00ff00ff) | (((IV_1 << 24) | (IV_1 >>> 8)) & 0xff00ff00);

+                var i1 = (i0 >>> 16) | (i2 & 0xffff0000);

+                var i3 = (i2 << 16)  | (i0 & 0x0000ffff);

+

+                // Modify counter values

+                C[0] ^= i0;

+                C[1] ^= i1;

+                C[2] ^= i2;

+                C[3] ^= i3;

+                C[4] ^= i0;

+                C[5] ^= i1;

+                C[6] ^= i2;

+                C[7] ^= i3;

+

+                // Iterate the system four times

+                for (var i = 0; i < 4; i++) {

+                    nextState.call(this);

+                }

+            }

+        },

+

+        _doProcessBlock: function (M, offset) {

+            // Shortcut

+            var X = this._X;

+

+            // Iterate the system

+            nextState.call(this);

+

+            // Generate four keystream words

+            S[0] = X[0] ^ (X[5] >>> 16) ^ (X[3] << 16);

+            S[1] = X[2] ^ (X[7] >>> 16) ^ (X[5] << 16);

+            S[2] = X[4] ^ (X[1] >>> 16) ^ (X[7] << 16);

+            S[3] = X[6] ^ (X[3] >>> 16) ^ (X[1] << 16);

+

+            for (var i = 0; i < 4; i++) {

+                // Swap endian

+                S[i] = (((S[i] << 8)  | (S[i] >>> 24)) & 0x00ff00ff) |

+                       (((S[i] << 24) | (S[i] >>> 8))  & 0xff00ff00);

+

+                // Encrypt

+                M[offset + i] ^= S[i];

+            }

+        },

+

+        blockSize: 128/32,

+

+        ivSize: 64/32

+    });

+

+    function nextState() {

+        // Shortcuts

+        var X = this._X;

+        var C = this._C;

+

+        // Save old counter values

+        for (var i = 0; i < 8; i++) {

+            C_[i] = C[i];

+        }

+

+        // Calculate new counter values

+        C[0] = (C[0] + 0x4d34d34d + this._b) | 0;

+        C[1] = (C[1] + 0xd34d34d3 + ((C[0] >>> 0) < (C_[0] >>> 0) ? 1 : 0)) | 0;

+        C[2] = (C[2] + 0x34d34d34 + ((C[1] >>> 0) < (C_[1] >>> 0) ? 1 : 0)) | 0;

+        C[3] = (C[3] + 0x4d34d34d + ((C[2] >>> 0) < (C_[2] >>> 0) ? 1 : 0)) | 0;

+        C[4] = (C[4] + 0xd34d34d3 + ((C[3] >>> 0) < (C_[3] >>> 0) ? 1 : 0)) | 0;

+        C[5] = (C[5] + 0x34d34d34 + ((C[4] >>> 0) < (C_[4] >>> 0) ? 1 : 0)) | 0;

+        C[6] = (C[6] + 0x4d34d34d + ((C[5] >>> 0) < (C_[5] >>> 0) ? 1 : 0)) | 0;

+        C[7] = (C[7] + 0xd34d34d3 + ((C[6] >>> 0) < (C_[6] >>> 0) ? 1 : 0)) | 0;

+        this._b = (C[7] >>> 0) < (C_[7] >>> 0) ? 1 : 0;

+

+        // Calculate the g-values

+        for (var i = 0; i < 8; i++) {

+            var gx = X[i] + C[i];

+

+            // Construct high and low argument for squaring

+            var ga = gx & 0xffff;

+            var gb = gx >>> 16;

+

+            // Calculate high and low result of squaring

+            var gh = ((((ga * ga) >>> 17) + ga * gb) >>> 15) + gb * gb;

+            var gl = (((gx & 0xffff0000) * gx) | 0) + (((gx & 0x0000ffff) * gx) | 0);

+

+            // High XOR low

+            G[i] = gh ^ gl;

+        }

+

+        // Calculate new state values

+        X[0] = (G[0] + ((G[7] << 16) | (G[7] >>> 16)) + ((G[6] << 16) | (G[6] >>> 16))) | 0;

+        X[1] = (G[1] + ((G[0] << 8)  | (G[0] >>> 24)) + G[7]) | 0;

+        X[2] = (G[2] + ((G[1] << 16) | (G[1] >>> 16)) + ((G[0] << 16) | (G[0] >>> 16))) | 0;

+        X[3] = (G[3] + ((G[2] << 8)  | (G[2] >>> 24)) + G[1]) | 0;

+        X[4] = (G[4] + ((G[3] << 16) | (G[3] >>> 16)) + ((G[2] << 16) | (G[2] >>> 16))) | 0;

+        X[5] = (G[5] + ((G[4] << 8)  | (G[4] >>> 24)) + G[3]) | 0;

+        X[6] = (G[6] + ((G[5] << 16) | (G[5] >>> 16)) + ((G[4] << 16) | (G[4] >>> 16))) | 0;

+        X[7] = (G[7] + ((G[6] << 8)  | (G[6] >>> 24)) + G[5]) | 0;

+    }

+

+    /**

+     * Shortcut functions to the cipher's object interface.

+     *

+     * @example

+     *

+     *     var ciphertext = CryptoJS.RabbitLegacy.encrypt(message, key, cfg);

+     *     var plaintext  = CryptoJS.RabbitLegacy.decrypt(ciphertext, key, cfg);

+     */

+    C.RabbitLegacy = StreamCipher._createHelper(RabbitLegacy);

+}());