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Autoclave Cipher

Tool to decode AutoKey automatically. Autoclave cipher is a cryptographic system using the plaint text message as key, hence its other name: Autokey.

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Autoclave Cipher -

Tag(s) : Cryptography,Vigenere Variant

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Autoclave Cipher

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Autokey (Vigenere) Decoder





Optional parameter


Also on dCode: Vigenere Cipher

Autoclave (Vigenere) Encoder




Optional parameter


Also on dCode: Vigenere Cipher

Tool to decode AutoKey automatically. Autoclave cipher is a cryptographic system using the plaint text message as key, hence its other name: Autokey.

Answers to Questions

How to encrypt using Autoclave cipher

Encryption uses any algorithm using a key (most algorithms are compatible)

Autokey process can apply on many ciphering systems, it consists in replacing the key by key+message.

If the algorithm is Vigenerehref, the key is KEY. We want to code DCODE. With Autoclave, the key becomes KEYDCODE.

The chosen algorithm is applied on plain text, changing the key, changes the ciphered message.

The key is not KEY but KEYDCODE, the message is not NGMNI but NGMGG.

How to decrypt Autoclave cipher

Decryption requires to know the chosen algorithm and the initial key

Let the ciphered message be NGMGG crypted with Vigenerehref Autokey and the key KEY.

The decryption begins normally for known letters of the key.

Decryption of NGM with the key KEY gives DCO (the first letters of the plain text).

Next deciphering steps uses as key the first plain letters.

Decryption of the next letters GG with the first letters of the plain text DC as key gives DE. The plain text is DCODE.

How to recognize an Autoclave ciphered text?

Using Autokey changes properties of the ciphered text, generally the index of coincidencehref is lower than a normal index for a given algorithm.

How to decipher Autoclave without key?

No magic method, but testing all one-letter keys can be useful. Indeed, key length can be short, it will be completed with plain text.

dCode try to find all probable key length and try all letters in order to maximize the probability for the text to be decrypted. (Method suggested by LeSingeMalicieux)

When Autoclave have been invented?

?

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Source code

dCode retains ownership of the source code of the script Autoclave Cipher. Except explicit open source licence (free / freeware), any algorithm, applet, software (converter, solver, encryption / decryption, encoding / decoding, ciphering / deciphering, translator), or any snippet or function (convert, solve, decrypt, encrypt, decipher, cipher, decode, code, translate) written in PHP (or Java, C#, Python, Javascript, etc.) which dCode owns rights can be transferred after sales quote. So if you need to download the Autoclave Cipher script for offline use, for you, your company or association, see you on contact page !

Questions / Comments


Team dCode read all messages and answer them if you leave an email (not published). It is thanks to you that dCode has the best Autoclave Cipher tool. Thank you.


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