sheetjs-clone/bits/26_crypto.js
SheetJS ab2ecebac9 version bump 0.8.3: BIFF2 read/write
- basic support for parsing BIFF2-4
- basic support for writing BIFF2
- cleaned up some bad substr uses for IE6 compatibility
- added flow type annotations for xlsx.flow.js
- added numerous null guards (fixes #255 h/t @martinheidegger)
- README cleanup (fixes #539 h/t @oliversalzburg)
- pin jszip to local version (closes #408 h/t @limouri)

bower issues:

|  id  | author            | comment                                   |
|-----:|:------------------|:------------------------------------------|
| #254 | @kkirsche         | fixes #254 by removing version from json  |
| #165 | @vincentcialdella | fixes #165 by changing default script     |
| #180 | @owencraig        | fixes #180 by using xlsx.core.min.js      |

format issues:

|  id  | author            | comment                                   |
|-----:|:------------------|:------------------------------------------|
| #271 | @morstaine        | fixes #271 by reworking related parse fns |
| #504 | @JanSchuermannPH  | fixes #504 detect FullPaths h/t @Mithgol  |
| #508 | @basma-emad       | fixes #508 offending file used `x:` NS    |
2017-02-10 11:23:29 -08:00

35 lines
957 B
JavaScript

var OFFCRYPTO = {};
var make_offcrypto = function(O, _crypto) {
var crypto;
if(typeof _crypto !== 'undefined') crypto = _crypto;
else if(typeof require !== 'undefined') {
try { crypto = require('cry'+'pto'); }
catch(e) { crypto = null; }
}
O.rc4 = function(key, data) {
var S = new Array(256);
var c = 0, i = 0, j = 0, t = 0;
for(i = 0; i != 256; ++i) S[i] = i;
for(i = 0; i != 256; ++i) {
j = (j + S[i] + (key[i%key.length]).charCodeAt(0))&255;
t = S[i]; S[i] = S[j]; S[j] = t;
}
i = j = 0; out = Buffer(data.length);
for(c = 0; c != data.length; ++c) {
i = (i + 1)&255;
j = (j + S[i])%256;
t = S[i]; S[i] = S[j]; S[j] = t;
out[c] = (data[c] ^ S[(S[i]+S[j])&255]);
}
return out;
};
O.md5 = function(hex) {
if(!crypto) throw new Error("Unsupported crypto");
return crypto.createHash('md5').update(hex).digest('hex');
};
};
make_offcrypto(OFFCRYPTO, typeof crypto !== "undefined" ? crypto : undefined);