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Decryption works

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This commit is contained in:
sam
2012-04-26 20:26:58 +07:00
parent d1d455a41b
commit d09e0feb1e
5 changed files with 68 additions and 84 deletions
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53
static/js/behavior.js
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@ -2,24 +2,32 @@
// Start random number generator seeding ASAP
sjcl.random.startCollectors();
var zerobin = function() {
that = {};
that.base64 = {
decode: function(content) {
return sjcl.codec.utf8String.fromBits(sjcl.codec.base64.toBits(content));
},
encode: function(content) {
return sjcl.codec.base64.fromBits(sjcl.codec.utf8String.toBits(content));
}
};
that.encrypt = function(key, content) {
var encrypted = sjcl.encrypt(key, content);
return lzw.compress(encrypted);
};
that.decrypt = function(key, content) {
var uncompressed = lzw.decompress(content)
return sjcl.decrypt(key, uncompressed);
};
that.make_key = function() {
return sjcl.codec.base64.fromBits(sjcl.random.randomWords(8, 0), 0);
};
return that;
}();
$(function(){
function encrypt(key, content) {
content = lzw.compress(sjcl.encrypt(key, content));
content = sjcl.codec.utf8String.toBits(content);
return sjcl.codec.base64.fromBits(content);
}
function decrypt(key, content) {
content = sjcl.codec.base64.toBits(content);
content = sjcl.codec.utf8String.fromBits(content);
return sjcl.decrypt(key, lzw.decompress(content));
}
function make_key() {
return sjcl.codec.base64.fromBits(sjcl.random.randomWords(8, 0), 0);
}
$('button[type=submit]').click(function(e){
e.preventDefault();
@ -27,8 +35,8 @@ $('button[type=submit]').click(function(e){
if (paste.trim()) {
var expiration = $('#expiration').val();
var key = make_key();
var data = {content: encrypt(key, paste), expiration: expiration}
var key = zerobin.make_key();
var data = {content: zerobin.encrypt(key, paste), expiration: expiration}
$.post('/paste/create', data)
.error(function() {
@ -42,5 +50,14 @@ $('button[type=submit]').click(function(e){
});
var content = $('#paste-content').text().trim();
var key = window.location.hash.substring(1);
if (content && key) {
try {
$('#paste-content').text(zerobin.decrypt(key, content));
} catch(err) {
alert('Could not decrypt data (Wrong key ?)');
}
}
});