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gchq/CyberChef

The Cyber Swiss Army Knife - a web app for encryption, encoding, compression and data analysis

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Repo info

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Oct 15 16:03

wszostak closed #1257
Oct 15 16:03

wszostak commented #1257
Oct 15 16:00

wszostak opened #1261
Oct 15 14:59

wszostak commented #1257
Oct 11 18:54

tymscar commented #1260
Oct 11 18:52

tymscar commented #1260
Oct 11 18:50

CLAassistant commented #1260
Oct 11 18:49

CLAassistant commented #1260
Oct 11 18:49

tymscar opened #1260
Oct 09 05:03

connorskees commented #1257
Oct 06 20:11

matdumsa opened #1259
Oct 05 20:35

BigYellowHammer commented #1258
Oct 05 20:34

BigYellowHammer synchronize #1258
Oct 05 19:02

mikecat commented #1258
Oct 05 15:32

BigYellowHammer opened #1258
Oct 05 12:59

wszostak commented #1251
Oct 05 12:58

wszostak opened #1257
Oct 05 08:25

volphy labeled #1256
Oct 05 08:25

volphy opened #1256
Oct 04 13:45

mikecat commented #1254

bwhitn

@bwhitn

@joel1973👆

bwhitn

@bwhitn

@Whizzer87 to decode you should use from base64 with default settings and xor with the key copy and pasted and change hex to utf8

To encode xor the base64 with same settings

mike197312

@mike197312

how can i add value From_Base64('A-Za-z0-9+/=',true)

mike197312

@mike197312

it let me allow just From_Base64 A-Za-z0-9+/=

SapanJain321

@SapanJain321

I am new to AES GCM, please help how to resolve "AES Decrypt - Authentication tag does not match tag length." this issue.

Tomás Hidalgo

@thidalgosalvador

I am new to AES GCM, please help how to resolve "AES Decrypt - Authentication tag does not match tag length." this issue.

Hi @SapanJain321, The AES-GCM cipher with a key, a given IV and the ciphertext to be encrypted, returns as result the ciphertext and a tag value (AES_GCM is an AEAD cipher). This tag value must be entered - in the "GCM tag" field - when decrypting the ciphertext using the same key and IV. Try it and let us know your experience.

1 reply

rickhg12hs

@rickhg12hs

Was just toying around and wondered if there was a super simple "swap- like" operation. E.g., swap "A" with "K", "B" with "Z", etc., and vice versa everywhere. I know Substitute can be used but that involves more typing. In addition, it would be nice for swaps to have the option of being case insensitive, e.g., swapping "A" for "K" would also swap "k" for "a".

n1474335

@n1474335

Substitute is probably your best bet. Another option would be Find/Replace.

rickhg12hs

@rickhg12hs

@n1474335 OK, thanks.

martind1111

@martind1111

I am wondering how I can run my prod version of CyberChef after I build with "grunt prod". There is a build/prod directory created with files inside, but how do I deploy this say on a Windows machine?

aprilia denada

@apriliadenada2_twitter

hello

some one help me

i know you very expert in internet.
i need your help.
i want to grow up my youtube channel.
many ways i have tried but its all not work for me. i have buy view on smm, i have try diabolic software and many more. nothing work.
This all started from seeing one of the channels on YouTube called Fendy Shinta Pratama Official. here is the link https://www.youtube.com/channel/UCN9PKRt0AS8WPYNSy8wVm3Q.
i need to know what did he use? he get million view but if you see at the comment is weird, all comment is arabic and meaningless.
many people say he use youtube ads, but i know yt ads will not earn money from google adsense.
meanwhile this guy is making a lot of money from his youtube.
please give me advise. i beg you please.
i feel desperate. i have 3 month for research he's method but all i got is nothing.

Matt_Tulk

@Matt_Tulk_twitter

Hi All I am very green to cyber Chef but I have an assigment to try and unscramble a text file. I have read and watched a few vidoes here but I am still lost of on what I am doing ? Is there an easy way to unscramble a file ?

I am after some steps so I can understand it

Aaron

@737simpilot

What you would need to do is learn about entropy and look under Other and flow control for recipes to help. The biggest would be Magic under Flow control

Matt_Tulk

@Matt_Tulk_twitter

@737simpilot Thanks Aaron for the response that is great.

Aaron

@737simpilot

Yep.

9ed918391fc96072da5ee4d3f5c7d790

@AndromedusMr_twitter

Greetings - does CyberChef do Joaat hashing? I'm struggling to find that algorithm in the application, unless it is named something different.

n1474335

@n1474335

@AndromedusMr_twitter No, it doesn't currently support Joaat hashing, but if you'd like to write it yourself and submit a PR we would look at including it

Kaustubh BM

@Necron3574

Hello.

I was wondering how often are PRs merged?

cybersecuritycoding

@cybersecuritycoding

Hey hey. I am about to start writing my course on CyberChef. Once complete, is it cool to drop a link in here?

another_1_time_account

@another_1_time_account:matrix.org

[m]

Hey there. Where do I see what is the correct input format for an operation? Protobuf deode fails with "Error: Unknown type 0x4" if I put "to hex" before it and "Error: Unknown type 0x3" is I use the base64-decoded values directly.

hdbf

@cink:matrix.org

[m]

Hello

Sh311c0d324

@Sh311c0d324

Anyone have any problems with Cyberchef not decoding multiple lines?
I am trying to decode multiple lines of RC4 and it seems to only be decoding one line at a time. Any ideas?

bwhitn

@bwhitn

Got an example?

Sh311c0d324

@Sh311c0d324

I do, give me a second.

gchq/CyberChef#1223

That's the issue I opened and it has some examples.

bwhitn

@bwhitn

@Sh311c0d324 Not 100% sure but you may want to try the fork function at the beginning of the recipe.

Sh311c0d324

@Sh311c0d324

Fork function?

I'll take a look, thanks!

The fork function worked! Thanks so much for your help @bwhitn

bwhitn

@bwhitn

Belsaros

@Belsaros

How would one submit a feature request? It's be awesome if CyberChef could do ole manipulation

n1474335

@n1474335

https://github.com/gchq/CyberChef/issues/new/choose :)

oujii

@oujii

Hello :) I have more of a general question (I hope it's OK to ask this here) it's a simple one. I am learning about cryptography and I am just looking to perform a really basic encryption/decryption with cyberchef using DES3. I want to take a string "The elephant was pink" and encrypt it. Then share that encyption with some friends and challenge them to decrypt it :) I am getting "invalid key length" errors.

1 reply

(Or if anyone could recommend a good resource to learn more about this, I am really grateful!)