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March 14, 2017 05:21
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xor encrypt javascript
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| // xorEncode.js - Topcat Software LLC. 2011 | |
| // bitwise XOR cipher for javascript | |
| // http://www.topcat.hypermart.net/index.html | |
| // | |
| // referencing the script in your HTML: | |
| // | |
| // <html> | |
| // <head> | |
| // <script type="text/javascript" src="xorEncode.js"></script> | |
| // </head> | |
| // <body> | |
| // | |
| // <script> | |
| // var foo = xorEncode("we can be heros...", "mypassword") | |
| // var bar = xorEncode(foo, "mypassword") | |
| // </script> | |
| // | |
| // <p>encoded: <script>document.write(foo)</script> | |
| // <p>decoded: <script>document.write(bar)</script> | |
| // | |
| // </body> | |
| // </html> | |
| function xorEncode(txt, pass) { | |
| var ord = [] | |
| var buf = "" | |
| for (z = 1; z <= 255; z++) {ord[String.fromCharCode(z)] = z} | |
| for (j = z = 0; z < txt.length; z++) { | |
| buf += String.fromCharCode(ord[txt.substr(z, 1)] ^ ord[pass.substr(j, 1)]) | |
| j = (j < pass.length) ? j + 1 : 0 | |
| } | |
| return buf | |
| } |
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