1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
|
function str_rot13 (str) {
// http://kevin.vanzonneveld.net
// + original by: Jonas Raoni Soares Silva (http://www.jsfromhell.com)
// + improved by: Ates Goral (http://magnetiq.com)
// + bugfixed by: Onno Marsman
// + improved by: Rafa? Kukawski (http://blog.kukawski.pl)
// * example 1: str_rot13('Kevin van Zonneveld');
// * returns 1: 'Xriva ina Mbaariryq'
// * example 2: str_rot13('Xriva ina Mbaariryq');
// * returns 2: 'Kevin van Zonneveld'
// * example 3: str_rot13(33);
// * returns 3: '33'
return (str + '').replace(/[a-z]/gi, function (s) {
return String.fromCharCode(s.charCodeAt(0) + (s.toLowerCase() < 'n' ? 13 : -13));
});
}
function red_encrypt(alg, elem,text) {
var enc_text = '';
var newdiv = '';
if(! alg)
alg = 'rot13';
if((alg == 'rot13') || (alg == 'triple-rot13'))
newdiv = "[crypt alg='rot13']" + str_rot13(text) + '[/crypt]';
else if(alg == 'aes256') {
var enc_key = prompt('key');
var enc_hint = prompt('hint');
enc_text = base64_encode(CryptoJS.AES.encrypt(text,key));
newdiv = "[crypt alg='aes256' hint=' + hint + ']" + enc_text + '[/crypt]';
}
alert(newdiv);
textarea = document.getElementById(elem);
if (document.selection) {
textarea.focus();
selected = document.selection.createRange();
selected.text = newdiv;
} else if (textarea.selectionStart || textarea.selectionStart == "0") {
var start = textarea.selectionStart;
var end = textarea.selectionEnd;
textarea.value = textarea.value.substring(0, start) + newdiv + textarea.value.substring(end, textarea.value.length);
}
}
function red_decrypt(alg,hint,text) {
var enc_text = '';
if(alg == 'rot13' || alg == 'triple-rot13')
enc_text = str_rot13(text);
if(alg == 'aes256') {
var enc_key = prompt(hint);
enc_text = CryptoJS.AES.decrypt(base64_decode(text),enc_key);
}
alert(enc_text);
}
function base64_encode (data) {
// http://kevin.vanzonneveld.net
// + original by: Tyler Akins (http://rumkin.com)
// + improved by: Bayron Guevara
// + improved by: Thunder.m
// + improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
// + bugfixed by: Pellentesque Malesuada
// + improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
// + improved by: Rafa? Kukawski (http://kukawski.pl)
// * example 1: base64_encode('Kevin van Zonneveld');
// * returns 1: 'S2V2aW4gdmFuIFpvbm5ldmVsZA=='
// mozilla has this native
// - but breaks in 2.0.0.12!
//if (typeof this.window['btoa'] === 'function') {
// return btoa(data);
//}
var b64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
var o1, o2, o3, h1, h2, h3, h4, bits, i = 0,
ac = 0,
enc = "",
tmp_arr = [];
if (!data) {
return data;
}
do { // pack three octets into four hexets
o1 = data.charCodeAt(i++);
o2 = data.charCodeAt(i++);
o3 = data.charCodeAt(i++);
bits = o1 << 16 | o2 << 8 | o3;
h1 = bits >> 18 & 0x3f;
h2 = bits >> 12 & 0x3f;
h3 = bits >> 6 & 0x3f;
h4 = bits & 0x3f;
// use hexets to index into b64, and append result to encoded string
tmp_arr[ac++] = b64.charAt(h1) + b64.charAt(h2) + b64.charAt(h3) + b64.charAt(h4);
} while (i < data.length);
enc = tmp_arr.join('');
var r = data.length % 3;
return (r ? enc.slice(0, r - 3) : enc) + '==='.slice(r || 3);
}
function base64_decode (data) {
// http://kevin.vanzonneveld.net
// + original by: Tyler Akins (http://rumkin.com)
// + improved by: Thunder.m
// + input by: Aman Gupta
// + improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
// + bugfixed by: Onno Marsman
// + bugfixed by: Pellentesque Malesuada
// + improved by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
// + input by: Brett Zamir (http://brett-zamir.me)
// + bugfixed by: Kevin van Zonneveld (http://kevin.vanzonneveld.net)
// * example 1: base64_decode('S2V2aW4gdmFuIFpvbm5ldmVsZA==');
// * returns 1: 'Kevin van Zonneveld'
// mozilla has this native
// - but breaks in 2.0.0.12!
//if (typeof this.window['atob'] === 'function') {
// return atob(data);
//}
var b64 = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/=";
var o1, o2, o3, h1, h2, h3, h4, bits, i = 0,
ac = 0,
dec = "",
tmp_arr = [];
if (!data) {
return data;
}
data += '';
do { // unpack four hexets into three octets using index points in b64
h1 = b64.indexOf(data.charAt(i++));
h2 = b64.indexOf(data.charAt(i++));
h3 = b64.indexOf(data.charAt(i++));
h4 = b64.indexOf(data.charAt(i++));
bits = h1 << 18 | h2 << 12 | h3 << 6 | h4;
o1 = bits >> 16 & 0xff;
o2 = bits >> 8 & 0xff;
o3 = bits & 0xff;
if (h3 == 64) {
tmp_arr[ac++] = String.fromCharCode(o1);
} else if (h4 == 64) {
tmp_arr[ac++] = String.fromCharCode(o1, o2);
} else {
tmp_arr[ac++] = String.fromCharCode(o1, o2, o3);
}
} while (i < data.length);
dec = tmp_arr.join('');
return dec;
}
|
