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Diffstat (limited to 'library/cryptojs/components/rabbit.js')
| -rw-r--r-- | library/cryptojs/components/rabbit.js | 178 |
1 files changed, 0 insertions, 178 deletions
diff --git a/library/cryptojs/components/rabbit.js b/library/cryptojs/components/rabbit.js deleted file mode 100644 index af8cec88e..000000000 --- a/library/cryptojs/components/rabbit.js +++ /dev/null @@ -1,178 +0,0 @@ -/* -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
- */
- var Rabbit = C_algo.Rabbit = StreamCipher.extend({
- _doReset: function () {
- // Shortcuts
- var K = this._key.words;
- var iv = this.cfg.iv;
-
- // Swap endian
- for (var i = 0; i < 4; i++) {
- K[i] = (((K[i] << 8) | (K[i] >>> 24)) & 0x00ff00ff) |
- (((K[i] << 24) | (K[i] >>> 8)) & 0xff00ff00);
- }
-
- // 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.Rabbit.encrypt(message, key, cfg);
- * var plaintext = CryptoJS.Rabbit.decrypt(ciphertext, key, cfg);
- */
- C.Rabbit = StreamCipher._createHelper(Rabbit);
-}());
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