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/*
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
*/
var CryptoJS=CryptoJS||function(u,p){var d={},l=d.lib={},s=function(){},t=l.Base={extend:function(a){s.prototype=this;var c=new s;a&&c.mixIn(a);c.hasOwnProperty("init")||(c.init=function(){c.$super.init.apply(this,arguments)});c.init.prototype=c;c.$super=this;return c},create:function(){var a=this.extend();a.init.apply(a,arguments);return a},init:function(){},mixIn:function(a){for(var c in a)a.hasOwnProperty(c)&&(this[c]=a[c]);a.hasOwnProperty("toString")&&(this.toString=a.toString)},clone:function(){return this.init.prototype.extend(this)}},
r=l.WordArray=t.extend({init:function(a,c){a=this.words=a||[];this.sigBytes=c!=p?c:4*a.length},toString:function(a){return(a||v).stringify(this)},concat:function(a){var c=this.words,e=a.words,j=this.sigBytes;a=a.sigBytes;this.clamp();if(j%4)for(var k=0;k<a;k++)c[j+k>>>2]|=(e[k>>>2]>>>24-8*(k%4)&255)<<24-8*((j+k)%4);else if(65535<e.length)for(k=0;k<a;k+=4)c[j+k>>>2]=e[k>>>2];else c.push.apply(c,e);this.sigBytes+=a;return this},clamp:function(){var a=this.words,c=this.sigBytes;a[c>>>2]&=4294967295<<
32-8*(c%4);a.length=u.ceil(c/4)},clone:function(){var a=t.clone.call(this);a.words=this.words.slice(0);return a},random:function(a){for(var c=[],e=0;e<a;e+=4)c.push(4294967296*u.random()|0);return new r.init(c,a)}}),w=d.enc={},v=w.Hex={stringify:function(a){var c=a.words;a=a.sigBytes;for(var e=[],j=0;j<a;j++){var k=c[j>>>2]>>>24-8*(j%4)&255;e.push((k>>>4).toString(16));e.push((k&15).toString(16))}return e.join("")},parse:function(a){for(var c=a.length,e=[],j=0;j<c;j+=2)e[j>>>3]|=parseInt(a.substr(j,
2),16)<<24-4*(j%8);return new r.init(e,c/2)}},b=w.Latin1={stringify:function(a){var c=a.words;a=a.sigBytes;for(var e=[],j=0;j<a;j++)e.push(String.fromCharCode(c[j>>>2]>>>24-8*(j%4)&255));return e.join("")},parse:function(a){for(var c=a.length,e=[],j=0;j<c;j++)e[j>>>2]|=(a.charCodeAt(j)&255)<<24-8*(j%4);return new r.init(e,c)}},x=w.Utf8={stringify:function(a){try{return decodeURIComponent(escape(b.stringify(a)))}catch(c){throw Error("Malformed UTF-8 data");}},parse:function(a){return b.parse(unescape(encodeURIComponent(a)))}},
q=l.BufferedBlockAlgorithm=t.extend({reset:function(){this._data=new r.init;this._nDataBytes=0},_append:function(a){"string"==typeof a&&(a=x.parse(a));this._data.concat(a);this._nDataBytes+=a.sigBytes},_process:function(a){var c=this._data,e=c.words,j=c.sigBytes,k=this.blockSize,b=j/(4*k),b=a?u.ceil(b):u.max((b|0)-this._minBufferSize,0);a=b*k;j=u.min(4*a,j);if(a){for(var q=0;q<a;q+=k)this._doProcessBlock(e,q);q=e.splice(0,a);c.sigBytes-=j}return new r.init(q,j)},clone:function(){var a=t.clone.call(this);
a._data=this._data.clone();return a},_minBufferSize:0});l.Hasher=q.extend({cfg:t.extend(),init:function(a){this.cfg=this.cfg.extend(a);this.reset()},reset:function(){q.reset.call(this);this._doReset()},update:function(a){this._append(a);this._process();return this},finalize:function(a){a&&this._append(a);return this._doFinalize()},blockSize:16,_createHelper:function(a){return function(b,e){return(new a.init(e)).finalize(b)}},_createHmacHelper:function(a){return function(b,e){return(new n.HMAC.init(a,
e)).finalize(b)}}});var n=d.algo={};return d}(Math);
(function(){var u=CryptoJS,p=u.lib.WordArray;u.enc.Base64={stringify:function(d){var l=d.words,p=d.sigBytes,t=this._map;d.clamp();d=[];for(var r=0;r<p;r+=3)for(var w=(l[r>>>2]>>>24-8*(r%4)&255)<<16|(l[r+1>>>2]>>>24-8*((r+1)%4)&255)<<8|l[r+2>>>2]>>>24-8*((r+2)%4)&255,v=0;4>v&&r+0.75*v<p;v++)d.push(t.charAt(w>>>6*(3-v)&63));if(l=t.charAt(64))for(;d.length%4;)d.push(l);return d.join("")},parse:function(d){var l=d.length,s=this._map,t=s.charAt(64);t&&(t=d.indexOf(t),-1!=t&&(l=t));for(var t=[],r=0,w=0;w<
l;w++)if(w%4){var v=s.indexOf(d.charAt(w-1))<<2*(w%4),b=s.indexOf(d.charAt(w))>>>6-2*(w%4);t[r>>>2]|=(v|b)<<24-8*(r%4);r++}return p.create(t,r)},_map:"ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="}})();
(function(u){function p(b,n,a,c,e,j,k){b=b+(n&a|~n&c)+e+k;return(b<<j|b>>>32-j)+n}function d(b,n,a,c,e,j,k){b=b+(n&c|a&~c)+e+k;return(b<<j|b>>>32-j)+n}function l(b,n,a,c,e,j,k){b=b+(n^a^c)+e+k;return(b<<j|b>>>32-j)+n}function s(b,n,a,c,e,j,k){b=b+(a^(n|~c))+e+k;return(b<<j|b>>>32-j)+n}for(var t=CryptoJS,r=t.lib,w=r.WordArray,v=r.Hasher,r=t.algo,b=[],x=0;64>x;x++)b[x]=4294967296*u.abs(u.sin(x+1))|0;r=r.MD5=v.extend({_doReset:function(){this._hash=new w.init([1732584193,4023233417,2562383102,271733878])},
_doProcessBlock:function(q,n){for(var a=0;16>a;a++){var c=n+a,e=q[c];q[c]=(e<<8|e>>>24)&16711935|(e<<24|e>>>8)&4278255360}var a=this._hash.words,c=q[n+0],e=q[n+1],j=q[n+2],k=q[n+3],z=q[n+4],r=q[n+5],t=q[n+6],w=q[n+7],v=q[n+8],A=q[n+9],B=q[n+10],C=q[n+11],u=q[n+12],D=q[n+13],E=q[n+14],x=q[n+15],f=a[0],m=a[1],g=a[2],h=a[3],f=p(f,m,g,h,c,7,b[0]),h=p(h,f,m,g,e,12,b[1]),g=p(g,h,f,m,j,17,b[2]),m=p(m,g,h,f,k,22,b[3]),f=p(f,m,g,h,z,7,b[4]),h=p(h,f,m,g,r,12,b[5]),g=p(g,h,f,m,t,17,b[6]),m=p(m,g,h,f,w,22,b[7]),
f=p(f,m,g,h,v,7,b[8]),h=p(h,f,m,g,A,12,b[9]),g=p(g,h,f,m,B,17,b[10]),m=p(m,g,h,f,C,22,b[11]),f=p(f,m,g,h,u,7,b[12]),h=p(h,f,m,g,D,12,b[13]),g=p(g,h,f,m,E,17,b[14]),m=p(m,g,h,f,x,22,b[15]),f=d(f,m,g,h,e,5,b[16]),h=d(h,f,m,g,t,9,b[17]),g=d(g,h,f,m,C,14,b[18]),m=d(m,g,h,f,c,20,b[19]),f=d(f,m,g,h,r,5,b[20]),h=d(h,f,m,g,B,9,b[21]),g=d(g,h,f,m,x,14,b[22]),m=d(m,g,h,f,z,20,b[23]),f=d(f,m,g,h,A,5,b[24]),h=d(h,f,m,g,E,9,b[25]),g=d(g,h,f,m,k,14,b[26]),m=d(m,g,h,f,v,20,b[27]),f=d(f,m,g,h,D,5,b[28]),h=d(h,f,
m,g,j,9,b[29]),g=d(g,h,f,m,w,14,b[30]),m=d(m,g,h,f,u,20,b[31]),f=l(f,m,g,h,r,4,b[32]),h=l(h,f,m,g,v,11,b[33]),g=l(g,h,f,m,C,16,b[34]),m=l(m,g,h,f,E,23,b[35]),f=l(f,m,g,h,e,4,b[36]),h=l(h,f,m,g,z,11,b[37]),g=l(g,h,f,m,w,16,b[38]),m=l(m,g,h,f,B,23,b[39]),f=l(f,m,g,h,D,4,b[40]),h=l(h,f,m,g,c,11,b[41]),g=l(g,h,f,m,k,16,b[42]),m=l(m,g,h,f,t,23,b[43]),f=l(f,m,g,h,A,4,b[44]),h=l(h,f,m,g,u,11,b[45]),g=l(g,h,f,m,x,16,b[46]),m=l(m,g,h,f,j,23,b[47]),f=s(f,m,g,h,c,6,b[48]),h=s(h,f,m,g,w,10,b[49]),g=s(g,h,f,m,
E,15,b[50]),m=s(m,g,h,f,r,21,b[51]),f=s(f,m,g,h,u,6,b[52]),h=s(h,f,m,g,k,10,b[53]),g=s(g,h,f,m,B,15,b[54]),m=s(m,g,h,f,e,21,b[55]),f=s(f,m,g,h,v,6,b[56]),h=s(h,f,m,g,x,10,b[57]),g=s(g,h,f,m,t,15,b[58]),m=s(m,g,h,f,D,21,b[59]),f=s(f,m,g,h,z,6,b[60]),h=s(h,f,m,g,C,10,b[61]),g=s(g,h,f,m,j,15,b[62]),m=s(m,g,h,f,A,21,b[63]);a[0]=a[0]+f|0;a[1]=a[1]+m|0;a[2]=a[2]+g|0;a[3]=a[3]+h|0},_doFinalize:function(){var b=this._data,n=b.words,a=8*this._nDataBytes,c=8*b.sigBytes;n[c>>>5]|=128<<24-c%32;var e=u.floor(a/
4294967296);n[(c+64>>>9<<4)+15]=(e<<8|e>>>24)&16711935|(e<<24|e>>>8)&4278255360;n[(c+64>>>9<<4)+14]=(a<<8|a>>>24)&16711935|(a<<24|a>>>8)&4278255360;b.sigBytes=4*(n.length+1);this._process();b=this._hash;n=b.words;for(a=0;4>a;a++)c=n[a],n[a]=(c<<8|c>>>24)&16711935|(c<<24|c>>>8)&4278255360;return b},clone:function(){var b=v.clone.call(this);b._hash=this._hash.clone();return b}});t.MD5=v._createHelper(r);t.HmacMD5=v._createHmacHelper(r)})(Math);
(function(){var u=CryptoJS,p=u.lib,d=p.Base,l=p.WordArray,p=u.algo,s=p.EvpKDF=d.extend({cfg:d.extend({keySize:4,hasher:p.MD5,iterations:1}),init:function(d){this.cfg=this.cfg.extend(d)},compute:function(d,r){for(var p=this.cfg,s=p.hasher.create(),b=l.create(),u=b.words,q=p.keySize,p=p.iterations;u.length<q;){n&&s.update(n);var n=s.update(d).finalize(r);s.reset();for(var a=1;a<p;a++)n=s.finalize(n),s.reset();b.concat(n)}b.sigBytes=4*q;return b}});u.EvpKDF=function(d,l,p){return s.create(p).compute(d,
l)}})();
CryptoJS.lib.Cipher||function(u){var p=CryptoJS,d=p.lib,l=d.Base,s=d.WordArray,t=d.BufferedBlockAlgorithm,r=p.enc.Base64,w=p.algo.EvpKDF,v=d.Cipher=t.extend({cfg:l.extend(),createEncryptor:function(e,a){return this.create(this._ENC_XFORM_MODE,e,a)},createDecryptor:function(e,a){return this.create(this._DEC_XFORM_MODE,e,a)},init:function(e,a,b){this.cfg=this.cfg.extend(b);this._xformMode=e;this._key=a;this.reset()},reset:function(){t.reset.call(this);this._doReset()},process:function(e){this._append(e);return this._process()},
finalize:function(e){e&&this._append(e);return this._doFinalize()},keySize:4,ivSize:4,_ENC_XFORM_MODE:1,_DEC_XFORM_MODE:2,_createHelper:function(e){return{encrypt:function(b,k,d){return("string"==typeof k?c:a).encrypt(e,b,k,d)},decrypt:function(b,k,d){return("string"==typeof k?c:a).decrypt(e,b,k,d)}}}});d.StreamCipher=v.extend({_doFinalize:function(){return this._process(!0)},blockSize:1});var b=p.mode={},x=function(e,a,b){var c=this._iv;c?this._iv=u:c=this._prevBlock;for(var d=0;d<b;d++)e[a+d]^=
c[d]},q=(d.BlockCipherMode=l.extend({createEncryptor:function(e,a){return this.Encryptor.create(e,a)},createDecryptor:function(e,a){return this.Decryptor.create(e,a)},init:function(e,a){this._cipher=e;this._iv=a}})).extend();q.Encryptor=q.extend({processBlock:function(e,a){var b=this._cipher,c=b.blockSize;x.call(this,e,a,c);b.encryptBlock(e,a);this._prevBlock=e.slice(a,a+c)}});q.Decryptor=q.extend({processBlock:function(e,a){var b=this._cipher,c=b.blockSize,d=e.slice(a,a+c);b.decryptBlock(e,a);x.call(this,
e,a,c);this._prevBlock=d}});b=b.CBC=q;q=(p.pad={}).Pkcs7={pad:function(a,b){for(var c=4*b,c=c-a.sigBytes%c,d=c<<24|c<<16|c<<8|c,l=[],n=0;n<c;n+=4)l.push(d);c=s.create(l,c);a.concat(c)},unpad:function(a){a.sigBytes-=a.words[a.sigBytes-1>>>2]&255}};d.BlockCipher=v.extend({cfg:v.cfg.extend({mode:b,padding:q}),reset:function(){v.reset.call(this);var a=this.cfg,b=a.iv,a=a.mode;if(this._xformMode==this._ENC_XFORM_MODE)var c=a.createEncryptor;else c=a.createDecryptor,this._minBufferSize=1;this._mode=c.call(a,
this,b&&b.words)},_doProcessBlock:function(a,b){this._mode.processBlock(a,b)},_doFinalize:function(){var a=this.cfg.padding;if(this._xformMode==this._ENC_XFORM_MODE){a.pad(this._data,this.blockSize);var b=this._process(!0)}else b=this._process(!0),a.unpad(b);return b},blockSize:4});var n=d.CipherParams=l.extend({init:function(a){this.mixIn(a)},toString:function(a){return(a||this.formatter).stringify(this)}}),b=(p.format={}).OpenSSL={stringify:function(a){var b=a.ciphertext;a=a.salt;return(a?s.create([1398893684,
1701076831]).concat(a).concat(b):b).toString(r)},parse:function(a){a=r.parse(a);var b=a.words;if(1398893684==b[0]&&1701076831==b[1]){var c=s.create(b.slice(2,4));b.splice(0,4);a.sigBytes-=16}return n.create({ciphertext:a,salt:c})}},a=d.SerializableCipher=l.extend({cfg:l.extend({format:b}),encrypt:function(a,b,c,d){d=this.cfg.extend(d);var l=a.createEncryptor(c,d);b=l.finalize(b);l=l.cfg;return n.create({ciphertext:b,key:c,iv:l.iv,algorithm:a,mode:l.mode,padding:l.padding,blockSize:a.blockSize,formatter:d.format})},
decrypt:function(a,b,c,d){d=this.cfg.extend(d);b=this._parse(b,d.format);return a.createDecryptor(c,d).finalize(b.ciphertext)},_parse:function(a,b){return"string"==typeof a?b.parse(a,this):a}}),p=(p.kdf={}).OpenSSL={execute:function(a,b,c,d){d||(d=s.random(8));a=w.create({keySize:b+c}).compute(a,d);c=s.create(a.words.slice(b),4*c);a.sigBytes=4*b;return n.create({key:a,iv:c,salt:d})}},c=d.PasswordBasedCipher=a.extend({cfg:a.cfg.extend({kdf:p}),encrypt:function(b,c,d,l){l=this.cfg.extend(l);d=l.kdf.execute(d,
b.keySize,b.ivSize);l.iv=d.iv;b=a.encrypt.call(this,b,c,d.key,l);b.mixIn(d);return b},decrypt:function(b,c,d,l){l=this.cfg.extend(l);c=this._parse(c,l.format);d=l.kdf.execute(d,b.keySize,b.ivSize,c.salt);l.iv=d.iv;return a.decrypt.call(this,b,c,d.key,l)}})}();
(function(){for(var u=CryptoJS,p=u.lib.BlockCipher,d=u.algo,l=[],s=[],t=[],r=[],w=[],v=[],b=[],x=[],q=[],n=[],a=[],c=0;256>c;c++)a[c]=128>c?c<<1:c<<1^283;for(var e=0,j=0,c=0;256>c;c++){var k=j^j<<1^j<<2^j<<3^j<<4,k=k>>>8^k&255^99;l[e]=k;s[k]=e;var z=a[e],F=a[z],G=a[F],y=257*a[k]^16843008*k;t[e]=y<<24|y>>>8;r[e]=y<<16|y>>>16;w[e]=y<<8|y>>>24;v[e]=y;y=16843009*G^65537*F^257*z^16843008*e;b[k]=y<<24|y>>>8;x[k]=y<<16|y>>>16;q[k]=y<<8|y>>>24;n[k]=y;e?(e=z^a[a[a[G^z]]],j^=a[a[j]]):e=j=1}var H=[0,1,2,4,8,
16,32,64,128,27,54],d=d.AES=p.extend({_doReset:function(){for(var a=this._key,c=a.words,d=a.sigBytes/4,a=4*((this._nRounds=d+6)+1),e=this._keySchedule=[],j=0;j<a;j++)if(j<d)e[j]=c[j];else{var k=e[j-1];j%d?6<d&&4==j%d&&(k=l[k>>>24]<<24|l[k>>>16&255]<<16|l[k>>>8&255]<<8|l[k&255]):(k=k<<8|k>>>24,k=l[k>>>24]<<24|l[k>>>16&255]<<16|l[k>>>8&255]<<8|l[k&255],k^=H[j/d|0]<<24);e[j]=e[j-d]^k}c=this._invKeySchedule=[];for(d=0;d<a;d++)j=a-d,k=d%4?e[j]:e[j-4],c[d]=4>d||4>=j?k:b[l[k>>>24]]^x[l[k>>>16&255]]^q[l[k>>>
8&255]]^n[l[k&255]]},encryptBlock:function(a,b){this._doCryptBlock(a,b,this._keySchedule,t,r,w,v,l)},decryptBlock:function(a,c){var d=a[c+1];a[c+1]=a[c+3];a[c+3]=d;this._doCryptBlock(a,c,this._invKeySchedule,b,x,q,n,s);d=a[c+1];a[c+1]=a[c+3];a[c+3]=d},_doCryptBlock:function(a,b,c,d,e,j,l,f){for(var m=this._nRounds,g=a[b]^c[0],h=a[b+1]^c[1],k=a[b+2]^c[2],n=a[b+3]^c[3],p=4,r=1;r<m;r++)var q=d[g>>>24]^e[h>>>16&255]^j[k>>>8&255]^l[n&255]^c[p++],s=d[h>>>24]^e[k>>>16&255]^j[n>>>8&255]^l[g&255]^c[p++],t=
d[k>>>24]^e[n>>>16&255]^j[g>>>8&255]^l[h&255]^c[p++],n=d[n>>>24]^e[g>>>16&255]^j[h>>>8&255]^l[k&255]^c[p++],g=q,h=s,k=t;q=(f[g>>>24]<<24|f[h>>>16&255]<<16|f[k>>>8&255]<<8|f[n&255])^c[p++];s=(f[h>>>24]<<24|f[k>>>16&255]<<16|f[n>>>8&255]<<8|f[g&255])^c[p++];t=(f[k>>>24]<<24|f[n>>>16&255]<<16|f[g>>>8&255]<<8|f[h&255])^c[p++];n=(f[n>>>24]<<24|f[g>>>16&255]<<16|f[h>>>8&255]<<8|f[k&255])^c[p++];a[b]=q;a[b+1]=s;a[b+2]=t;a[b+3]=n},keySize:8});u.AES=p._createHelper(d)})();

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<!DOCTYPE html> <!DOCTYPE HTML>
<html lang="en"> <html>
<head> <head>
<meta charset="UTF-8"> <meta charset='utf-8'>
<meta name="viewport" content="width=device-width, initial-scale=1.0"> <!-- Snow10 - Whitespace steganography. electronic invisible ink.
<link rel="icon" href="data:image/svg+xml,<svg xmlns=%22http://www.w3.org/2000/svg%22 viewBox=%220 0 100 100%22><text y=%22.9em%22 font-size=%2290%22>❄️</text></svg>"> Copyright (C) 2017 Kevin Froman https://ChaosWebs.net/
<link rel="stylesheet" href="theme.css">
<title>Snow10 - text steganography</title> This program is free software: you can redistribute it and/or modify
<script src="clipboard.min.js"></script> it under the terms of the GNU General Public License as published by
<script src="main.js" defer></script> the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.-->
<meta name="viewport" content="width=device-width, initial-scale=1.0, user-scalable=no">
<meta name='description' content="Perform Whitespace steganography with encryption and zero width characters">
<meta name='author' content='Kevin Froman'>
<title>Snow10</title>
<link rel="stylesheet" href="./bootstrap.min.css">
<link rel="stylesheet" href="./bootstrap-theme.min.css">
<link rel="stylesheet" href="./font-awesome.min.css">
<link rel='stylesheet' href='./theme.css'>
<script src="./jquery.min.js"></script>
<script src="./bootstrap.min.js"></script>
<script src="./clipboard.min.js"></script>
<script src="./jquery.bootstrap-growl.min.js"></script>
<script src='./aes.min.js'></script>
</head> </head>
<body> <body>
<div class="container main"> <a href="https://github.com/beardog108/snow10/"><img style="position: absolute; top: 0; right: 0; border: 0;" src="https://camo.githubusercontent.com/e7bbb0521b397edbd5fe43e7f760759336b5e05f/68747470733a2f2f73332e616d617a6f6e6177732e636f6d2f6769746875622f726962626f6e732f666f726b6d655f72696768745f677265656e5f3030373230302e706e67" alt="Fork me on GitHub" data-canonical-src="https://s3.amazonaws.com/github/ribbons/forkme_right_green_007200.png"></a>
<h1>Snow10 ☃</h1> <div class="modal" id="outputModal" tabindex="-1" role="dialog" aria-labelledby="myModalLabel">
<p>Snow10 is a simple web app for converting text to zero width unicode characters, which can be hidden in normal messages.</p> <div class="modal-dialog" role="document">
<p>It is inspired by the <a href="https://web.archive.org/web/20210117115615/http://darkside.com.au/snow/">original program</a> published in ~1998.</p> <div class="modal-content">
<p>Do not use alongside languages/emoji that use zero-width characters. Sorry, it's the way it works.</p> <div class="modal-header">
<pre> <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
Threat model: person visually looking at message threads in an app such as Twitter, Matrix, Signal, documents, etc. E.g. abusive family <h4 class="modal-title center" id="myModalLabel">Your Text Is Ready!</h4>
</div>
<div class="modal-body">
<br>
<pre id='output'></pre>
<div class='center'><button class="btn btn-success" data-clipboard-action="copy" data-clipboard-target="#output">Copy to Clipboard</button></div>
<div id='copyFeedback' class='center'></div>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal" id='modalClose'>Close</button>
</div>
</div>
</div>
</div>
Encrypt the secret message using something like age or keybase before using if encryption is needed. <div class='container'>
Will not resist forensic analysis. Don't use it over SMS. <div class='page-header'>
<h1 class='center'>Snow10 ☃</h1>
Privacy: This works client-side and does not log any messages. </div>
</pre> <p>Snow10 is a simple web app for converting text to whitespace characters, which can be hidden in normal messages.</p>
<label> <p>It is inspired by the <a href='http://darkside.com.au/snow/'>original program</a> published in 1998.</p>
<input type="checkbox" name="hideMode" checked> <div id='dataArea'>
Hide mode <textarea id='text' placeholder=''></textarea>
</label> </div>
<div class='center'><button class='btn btn-sm btn-default dataItem' id='clearInputButton'>Clear Input <i class='fa fa-cross'></i></button></div>
<form class="encode"> <br><br>
<label for="hideText" name="hideTextZone">Non-secret message (secret gets hidden inside): <input type="text" name="hideText" placeholder="Wonderful weather we're having"></label> <div class='center'>
<label>Use Zero-Width Characters <input type='checkbox' id='useZeroWidthCharacters' checked></label>
<br><br>
<label>Use Encryption <input type='checkbox' id='useEncrypt'></label>
<br><br>
<span id='encryptArea'>
<input type='password' id='password' placeholder='Encryption password' class='dataItem'>
<br>
<input type='password' id='confirmPass' placeholder='Confirm password' class='dataItem'>
<br>
</span>
<div class="btn-group" role="group" aria-label="..." id='encodeDecodeArea'>
<button type="button" class="btn btn-primary" id="encode">Encode <i class='fa fa-lock'></i></button>
<button type="button" class="btn btn-primary" id="decode">Decode <i class='fa fa-unlock'></i></button>
</div>
<br> <br>
<h1>Secret message</h1> </div>
<textarea name="inputSecret" placeholder="Secret to hide" required></textarea>
<h1>Output</h1>
<textarea name="output" readonly></textarea>
<input type="submit" value="Hide">
</form>
<form class="decode">
<h1>Message containing secret</h1>
<textarea name="inputSecret" placeholder="Non-secret message with secret inside" required></textarea>
<h1>Output</h1>
<textarea name="output" readonly></textarea>
<input type="submit" value="Reveal Message">
</form>
</div> </div>
<footer class='center'>made with <i class='fa fa-heart'></i> by <a href='https://www.chaoswebs.net/'>Kevin Froman</a></footer>
<script src='./main.js'></script>
</body> </body>
</html> </html>

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(function(){var c;c=jQuery;c.bootstrapGrowl=function(f,a){var b,e,d;a=c.extend({},c.bootstrapGrowl.default_options,a);b=c("<div>");b.attr("class","bootstrap-growl alert");a.type&&b.addClass("alert-"+a.type);a.allow_dismiss&&(b.addClass("alert-dismissible"),b.append('<button class="close" data-dismiss="alert" type="button"><span aria-hidden="true">&#215;</span><span class="sr-only">Close</span></button>'));b.append(f);a.top_offset&&(a.offset={from:"top",amount:a.top_offset});d=a.offset.amount;c(".bootstrap-growl").each(function(){return d= Math.max(d,parseInt(c(this).css(a.offset.from))+c(this).outerHeight()+a.stackup_spacing)});e={position:"body"===a.ele?"fixed":"absolute",margin:0,"z-index":"9999",display:"none"};e[a.offset.from]=d+"px";b.css(e);"auto"!==a.width&&b.css("width",a.width+"px");c(a.ele).append(b);switch(a.align){case "center":b.css({left:"50%","margin-left":"-"+b.outerWidth()/2+"px"});break;case "left":b.css("left","20px");break;default:b.css("right","20px")}b.fadeIn();0<a.delay&&b.delay(a.delay).fadeOut(function(){return c(this).alert("close")}); return b};c.bootstrapGrowl.default_options={ele:"body",type:"info",offset:{from:"top",amount:20},align:"right",width:250,delay:4E3,allow_dismiss:!0,stackup_spacing:10}}).call(this);

5
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main.js Normal file → Executable file
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@ -1,79 +1,207 @@
let zero_zwnj = '' /*
let one_zwl = '' Snow10 - Whitespace steganography. electronic invisible ink.
let two_zwsp = '' Copyright (C) 2017 Kevin Froman https://ChaosWebs.net/
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
var clipboard = new Clipboard('.btn');
var zero = '';
var one = '';
var z_zero = '';
var z_one = '';
var w_zero = ' ';
var w_one = '\t';
function doCheck(){ function showError(msg){
if (document.getElementsByName('hideMode')[0].checked){ $.bootstrapGrowl(msg, {type: 'danger'})
document.getElementsByName('hideTextZone')[0].style.display = "block"
document.getElementsByClassName('encode')[0].style.display = "block"
document.getElementsByClassName('decode')[0].style.display = "none"
}
else{
document.getElementsByName('hideTextZone')[0].style.display = "none"
document.getElementsByClassName('encode')[0].style.display = "none"
document.getElementsByClassName('decode')[0].style.display = "block"
}
} }
function escapeRegExp(str) {
document.getElementsByName('hideMode')[0].onclick = function(){ return str.replace(/([.*+?^=!:${}()|\[\]\/\\])/g, "\\$1");
doCheck()
} }
document.getElementsByClassName('encode')[0].onsubmit = function(e){ function replaceAll(str, find, replace) {
for (let i of document.getElementsByName('inputSecret')[0].value){ return str.replace(new RegExp(escapeRegExp(find), 'g'), replace);
if (i.charCodeAt(0) >= 729){
alert("Unsupported character in message")
return false
}
}
e.preventDefault()
let coverText = document.getElementsByName('hideText')[0].value
let cover1 = ""
let cover2 = ""
if (coverText.length){
cover1 = coverText.substring(0, coverText.length / 2)
cover2 = coverText.substring(coverText.length / 2, coverText.length)
}
document.getElementsByName('output')[0].value = cover1 + textToTern(document.getElementsByName('inputSecret')[0].value) + cover2
return false
} }
document.getElementsByClassName('decode')[0].onsubmit = function(e){ clipboard.on('success', function(e) {
let input = document.getElementsByName('inputSecret')[1].value $('#copyFeedback').css('display', 'inherit');
$('#copyFeedback').css('color', 'green');
$('#copyFeedback').html('Copied!');
e.clearSelection();
});
console.debug(input.length) clipboard.on('error', function(e) {
console.debug(ternToText(input, true)) $('#copyFeedback').css('display', 'inherit');
document.getElementsByName('output')[1].value = ternToText(input) $('#copyFeedback').css('color', 'red');
e.preventDefault() $('#copyFeedback').html('Your browser doesn\'t seem to support automatic copying. Get a better one.');
return false e.clearSelection();
});
if ($('#useEncrypt').is(':checked') == false)
{
$('#encryptArea').css('display', 'none');
} }
$('#modalClose').click(function(){
$('#copyFeedback').css('display', 'none');
});
let ternToText = function(input){
input = input.replaceAll(zero_zwnj, '0') $("#output").on("click", function () {
input = input.replaceAll(one_zwl, '1') $(this).select();
input = input.replaceAll(two_zwsp, '2') });
if(input.match(/[120]{6}/g)){ $('#useZeroWidthCharacters').click(function(){
let wFromTernary = input.match(/([120]{6}|\s+)/g).map(function(fromTernary){
return String.fromCharCode(parseInt(fromTernary, 3) ) if (zero == w_zero)
}).join('') {
return wFromTernary.replaceAll("\u0000", "") zero = z_zero;
one = z_one;
}
else
{
zero = w_zero;
one = z_one;
}
});
/* based on stackoverflow.com/questions/14430633/how-to-convert-text-to-binary-code-in-javascript */
function binToText(str) {
var str = replaceAll(replaceAll(str, one, "1"), zero, "0");
if(str.match(/[10]{8}/g)){
var wordFromBinary = str.match(/([10]{8}|\s+)/g).map(function(fromBinary){
return String.fromCharCode(parseInt(fromBinary, 2) );
}).join('');
return wordFromBinary;
} }
} }
/* based on stackoverflow.com/questions/21354235/converting-binary-to-text-using-javascript */ /* based on stackoverflow.com/questions/21354235/converting-binary-to-text-using-javascript */
let textToTern = function(text) { function textToBin(text) {
let output = [] var output = '';
let length = text.length var length = text.length,
for (var i = 0;i < length; i++) { output = [];
let bin = text[i].charCodeAt().toString(3).replaceAll('0', zero_zwnj).replaceAll('1', one_zwl).replaceAll('2', two_zwsp) for (var i = 0;i < length; i++) {
output.push(Array(6-bin.length+1).join(zero_zwnj) + bin) var bin = text[i].charCodeAt().toString(2);
} output.push(Array(8-bin.length+1).join("0") + bin);
return output.join('') }
return output.join('');
} }
doCheck() $('#useEncrypt').click(function(){
if (! this.checked)
{
$('#encryptArea').css('display', 'none');
}
else
{
$('#encryptArea').css('display', 'inherit');
}
})
function verifyPass(mode)
{
if ($('#password').val() == '')
{
showError('You must provide a password.');
return false;
}
if (mode == 'encrypt')
{
if ($('#password').val() != $('#confirmPass').val())
{
showError('Passwords must match.');
return false;
}
}
return true;
}
$('#encode').click(function(){
$('#encodeDecodeArea').css('display', 'none');
go('encode');
$('#encodeDecodeArea').css('display', 'inline-block');
});
$('#decode').click(function(){
$('#encodeDecodeArea').css('display', 'none');
go('decode');
$('#encodeDecodeArea').css('display', 'inline-block');
});
function go(mode) {
var output = '';
var input = $('#text').val();
if (input == '') { return false; }
// If we're encoding:
if (mode == 'encode')
{
// If we should use encryption, encrypt first:
if ($('#useEncrypt').is(':checked'))
{
// verify password first
if (verifyPass('encrypt'))
{
input = CryptoJS.AES.encrypt(input, $('#password').val()).toString();
}
else
{
return false;
}
}
// convert result to binary
output = textToBin(encodeURIComponent(input));
$('#output').text(replaceAll(replaceAll(output.toString(), "1", one), "0", zero));
}
else
{
var sanitized = "";
var split = input.split("");
for (var i = 0; i < split.length; i++)
if(split[i] == one || split[i] == zero)
sanitized = sanitized + split[i]
var output = decodeURIComponent(binToText(sanitized));
if (output === 'undefined'){
showError('Could not decode message. Maybe there wasn\'t one?');
return false;
}
if ($('#useEncrypt').is(':checked'))
{
if (verifyPass('decrypt'))
{
output = CryptoJS.AES.decrypt(output, $('#password').val()).toString(CryptoJS.enc.Utf8);
}
else
{
return false;
}
}
$('#output').text(output.toString());
}
$('#outputModal').modal();
}
$('#clearInputButton').click(function(){
$('#text').val('');
});

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/* /*
Snow10 - Whitespace steganography. electronic invisible ink. Snow10 - Whitespace steganography. electronic invisible ink.
Copyright (C) 2021 Kevin Froman https://ChaosWebs.net/ Copyright (C) 2017 Kevin Froman https://ChaosWebs.net/
This program is free software: you can redistribute it and/or modify This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or the Free Software Foundation, either version 3 of the License, or
(at your option) any later version. (at your option) any later version.
This program is distributed in the hope that it will be useful, This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details. GNU General Public License for more details.
You should have received a copy of the GNU General Public License You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. along with this program. If not, see <http://www.gnu.org/licenses/>.
*/ */
h1, p, label{ body
font-family: Verdana, Geneva, Tahoma, sans-serif; {
background-color: #d8d8d8;
color: black;
}
.center
{
text-align: center;
} }
textarea{ #dataArea
width: 35%; {
height: 10em; margin-left: 3em;
margin-right: 3em;
} }
.encode{ #text
margin-top: 2em; {
display: block; width: 100%;
max-width: 100%;
min-height: 300px;
} }
input[type="submit"]{ #one
display: block; {
margin-top: 2em; margin-bottom: 1em;
} }
.dataItem
@media only screen and (max-width: 1000px) { {
textarea{ margin: 1em;
width: 75%;
}
}
input[type="submit"] {
margin-top: 5em;
box-shadow:inset 0px 1px 3px 0px #91b8b3;
background:linear-gradient(to bottom, #768d87 5%, #6c7c7c 100%);
background-color:#768d87;
border-radius:5px;
border:1px solid #566963;
display:block;
cursor:pointer;
color:#ffffff;
font-family:Arial;
font-size:15px;
font-weight:bold;
padding:11px 23px;
text-decoration:none;
text-shadow:0px -1px 0px #2b665e;
}
input[type="submit"]:hover {
background:linear-gradient(to bottom, #6c7c7c 5%, #768d87 100%);
background-color:#6c7c7c;
}
input[type="submit"]:active {
position:relative;
top:1px;
} }
.container{ footer
margin-left: 2em; {
margin-top: 1em;
margin-bottom: 2em;
} }
#copyFeedback
{
margin-top: 1em;
margin-bottom: 1em;
}
.decode{ #outputDecode, #copyFeedback{
display: none; display: none;
} }
#outputDecode{
overflow: scroll;
}

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body{background-color:#d8d8d8;color:black}.center{text-align:center}#dataArea{margin-left:3em;margin-right:3em}#text{width:100%;max-width:100%;min-height:300px}#one{margin-bottom:1em}.dataItem{margin:1em}footer{margin-top:1em;margin-bottom:2em}#copyFeedback{margin-top:1em;margin-bottom:1em}#outputDecode,#copyFeedback{display:none}#outputDecode{overflow:scroll}