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XOR Cipher

Tool to decrypt/encrypt with XOR automatically. XOR Cipher is a cryptographic method developed with computers. Is consists in encrypting a binary message with a repeated key using a XOR multiplication.

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XOR Cipher -

Tag(s) : Cryptography

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XOR Cipher

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XOR Decoder





XOR Operation





Tool to decrypt/encrypt with XOR automatically. XOR Cipher is a cryptographic method developed with computers. Is consists in encrypting a binary message with a repeated key using a XOR multiplication.

Answers to Questions

How to encrypt using XOR cipher?

XOR Encryption uses the XOR operator (Exclusive Or, symbol : ) with the plain text and the key as operand (that should be binary encoded).

Example: The plain message is 1001 and the key is 10

Take the first bit (0 or 1) of the plain text and the first bit of the key and multiply then using XOR operation to get the ciphered bit.

Example: 1 ⊕ 1 = 0

The operation is repeated with the second bit of the plaintext and the second bit of the key. At the end of the key, loob back to the first bit.

Example: 0 ⊕ 0 = 0, puis 0 ⊕ 1 = 1 puis 1 ⊕ 0 = 1. The ciphered message is 0011.

How to decrypt XOR cipher?

XOR Decryption is identical to encryption because the XOR operation is symmetrical.

Example: 1001 ⊕ 1010 = 0011 and 0011 ⊕ 1010 = 1001

How to convert a text in binary?

dCode uses the ASCII table encoding that associates to latin alphabet letters a number between 0 and 128, which is then converted in base 2 (binary). It is possible to use other methods to get binary encoded text.

What is the truth table for XOR?

ABA xor B
000
011
101
110

How to recognize XOR ciphertext?

A XOR ciphered message has no particularities, this makes it hard to detect. It can be presented under binary form but also as ascii text.

How to decipher XOR without key?

Xor decryption without key is hard. It is possible to find all or a part of the key by knowing a part of the plain text. Else, there are no practical methods other than trying all the keys.

What are the variants of the XOR cipher?

XOR is comptabile with the principle of an Autoclave ciphering.

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Source code

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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 XOR Cipher tool. Thank you.


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