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Crypter Hat Encrypt-Decrypt Files

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dEEpEst

dEEpEst

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 is a javascript app that provides secure file encryption using the 
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 algorithm from 
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 provided by your browser. it was coded following the WebCrypto 
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 .

It's fast, secure and Serverless, the app never uploads the files to the server.

in a small amount of code the app can encrypt any type of files at any size within seconds.

To use the app all you have to do is Browse a file, Type a Decryption Key or Generate one through our secure key generator. and your encrypted file is ready to download.


How to use


just simply browse a file, type a decryption key or use our secure key generator, and encrypt or decrypt.

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Offline Use


the app is cross-platform and is available to download on 
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 , 
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 and 
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Requirements


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 which lets you require('modules') in the browser by bundling up all of your dependencies.


Installation


Download or clone the repository

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go to the app directory

cd [app directory]



open terminal and install the node modules that are in the package.json file

sudo npm install



after the packages are installed bundle main app.js and modules together in one file using Browserify

browserify src/js/app.js -o bundle.js



then start the app by running index.html


Browser Compatibility


We officially support the last two versions of every major browser. Specifically, we test on the following

  • Chrome on Windows, macOS, and Linux , IOS, Android
  • Firefox on Windows, macOS, and Linux
  • Safari on iOS and macOS
  • Edge on Windows
  • IE 11 on Windows

for more info see 
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home page 
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Crypto Examples



AES-GCM - generateKey


window.crypto.subtle.generateKey(
{
name: "AES-GCM",
length: 256,
},
true,
["encrypt", "decrypt"]
)
.then(function(key){
console.log(key);
})
.catch(function(err){
console.error(err);
});

AES-GCM - importKey


Code: 
[COLOR=#d73a49]function[/COLOR] [COLOR=#6f42c1]importSecretKey[/COLOR]([COLOR=#24292e]rawKey[/COLOR]) {
    [COLOR=#d73a49]return[/COLOR] [COLOR=#005cc5]window[/COLOR].[COLOR=#005cc5]crypto[/COLOR].[COLOR=#24292e]subtle[/COLOR].[COLOR=#6f42c1]importKey[/COLOR](
      [COLOR=#032f62]"[/COLOR]raw[COLOR=#032f62]"[/COLOR],
      rawKey,
      [COLOR=#032f62]"[/COLOR]AES-GCM[COLOR=#032f62]"[/COLOR],
      [COLOR=#005cc5]true[/COLOR],
      [[COLOR=#032f62]"[/COLOR]encrypt[COLOR=#032f62]"[/COLOR], [COLOR=#032f62]"[/COLOR]decrypt[COLOR=#032f62]"[/COLOR]]
    );
  }
.[COLOR=#005cc5]then[/COLOR]([COLOR=#d73a49]function[/COLOR]([COLOR=#24292e]key[/COLOR]){
    [COLOR=#6f42c1]console[/COLOR].[COLOR=#005cc5]log[/COLOR](key);
})
.[COLOR=#005cc5]catch[/COLOR]([COLOR=#d73a49]function[/COLOR]([COLOR=#24292e]err[/COLOR]){
    [COLOR=#6f42c1]console[/COLOR].[COLOR=#005cc5]error[/COLOR](err);
});

AES-GCM - exportKey


Code: 
[COLOR=#d73a49]async[/COLOR] [COLOR=#d73a49]function[/COLOR] [COLOR=#6f42c1]exportCryptoKey[/COLOR]([COLOR=#24292e]key[/COLOR]) {
    [COLOR=#d73a49]const[/COLOR] [COLOR=#005cc5]exported[/COLOR] [COLOR=#d73a49]=[/COLOR] [COLOR=#d73a49]await[/COLOR] [COLOR=#005cc5]window[/COLOR].[COLOR=#005cc5]crypto[/COLOR].[COLOR=#24292e]subtle[/COLOR].[COLOR=#6f42c1]exportKey[/COLOR](
      [COLOR=#032f62]"[/COLOR]raw[COLOR=#032f62]"[/COLOR],
      key
    )
.[COLOR=#005cc5]then[/COLOR]([COLOR=#d73a49]function[/COLOR]([COLOR=#24292e]keydata[/COLOR]){
    [COLOR=#6f42c1]console[/COLOR].[COLOR=#005cc5]log[/COLOR](keydata);
})
.[COLOR=#005cc5]catch[/COLOR]([COLOR=#d73a49]function[/COLOR]([COLOR=#24292e]err[/COLOR]){
    [COLOR=#6f42c1]console[/COLOR].[COLOR=#005cc5]error[/COLOR](err);
});

AES-GCM - encrypt


Code: 
[COLOR=#d73a49]async[/COLOR] [COLOR=#d73a49]function[/COLOR] [COLOR=#6f42c1]encryptMessage[/COLOR]([COLOR=#24292e]key[/COLOR]) {
    [COLOR=#d73a49]let[/COLOR] encoded [COLOR=#d73a49]=[/COLOR] [COLOR=#6f42c1]getMessageEncoding[/COLOR]();
    [COLOR=#6a737d]//[/COLOR] The iv must never be reused with a given key.
    iv [COLOR=#d73a49]=[/COLOR] [COLOR=#005cc5]window[/COLOR].[COLOR=#005cc5]crypto[/COLOR].[COLOR=#6f42c1]getRandomValues[/COLOR]([COLOR=#d73a49]new[/COLOR] [COLOR=#6f42c1]Uint8Array[/COLOR]([COLOR=#005cc5]12[/COLOR]));
    ciphertext [COLOR=#d73a49]=[/COLOR] [COLOR=#d73a49]await[/COLOR] [COLOR=#005cc5]window[/COLOR].[COLOR=#005cc5]crypto[/COLOR].[COLOR=#24292e]subtle[/COLOR].[COLOR=#6f42c1]encrypt[/COLOR](
            {
                name[COLOR=#d73a49]:[/COLOR] [COLOR=#032f62]"[/COLOR]AES-GCM[COLOR=#032f62]"[/COLOR],
                iv[COLOR=#d73a49]:[/COLOR] iv
            },
            key,
            encoded
        )
        .[COLOR=#005cc5]then[/COLOR]([COLOR=#d73a49]function[/COLOR] ([COLOR=#24292e]encrypted[/COLOR]) {
            [COLOR=#6f42c1]console[/COLOR].[COLOR=#005cc5]log[/COLOR]([COLOR=#d73a49]new[/COLOR] [COLOR=#6f42c1]Uint8Array[/COLOR](encrypted));
        })
        .[COLOR=#005cc5]catch[/COLOR]([COLOR=#d73a49]function[/COLOR] ([COLOR=#24292e]err[/COLOR]) {
            [COLOR=#6f42c1]console[/COLOR].[COLOR=#005cc5]error[/COLOR](err);
        });
}

AES-GCM - decrypt


Code: 
[COLOR=#d73a49]async[/COLOR] [COLOR=#d73a49]function[/COLOR] [COLOR=#6f42c1]decryptMessage[/COLOR]([COLOR=#24292e]key[/COLOR]) {
    [COLOR=#d73a49]let[/COLOR] encoded [COLOR=#d73a49]=[/COLOR] [COLOR=#6f42c1]getMessageEncoding[/COLOR]();
    [COLOR=#d73a49]let[/COLOR] decrypted [COLOR=#d73a49]=[/COLOR] [COLOR=#d73a49]await[/COLOR] [COLOR=#005cc5]window[/COLOR].[COLOR=#005cc5]crypto[/COLOR].[COLOR=#24292e]subtle[/COLOR].[COLOR=#6f42c1]decrypt[/COLOR]({
            name[COLOR=#d73a49]:[/COLOR] [COLOR=#032f62]"[/COLOR]AES-GCM[COLOR=#032f62]"[/COLOR],
            iv[COLOR=#d73a49]:[/COLOR] iv
        },
        key,
        ciphertext
       )
       .[COLOR=#005cc5]then[/COLOR]([COLOR=#d73a49]function[/COLOR] ([COLOR=#24292e]decrypted[/COLOR]) {
            [COLOR=#6f42c1]console[/COLOR].[COLOR=#005cc5]log[/COLOR]([COLOR=#d73a49]new[/COLOR] [COLOR=#6f42c1]Uint8Array[/COLOR](encrypted));
        })
        .[COLOR=#005cc5]catch[/COLOR]([COLOR=#d73a49]function[/COLOR] ([COLOR=#24292e]err[/COLOR]) {
            [COLOR=#6f42c1]console[/COLOR].[COLOR=#005cc5]error[/COLOR](err);
        });
}

Source:

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Tool Online:

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