XOR Brute Force

Category: Ciphers

Status: Registered and callable in the CyberChef 11.3.0 compatibility inventory.

Input / output: ArrayBuffer → string

Background: https://wikipedia.org/wiki/Exclusive_or

What it does

Enumerate all possible XOR solutions. Current maximum key length is 2 due to browser performance. Optionally enter a string that you expect to find in the plaintext to filter results (crib).

Note

Status here means the operation name is implemented and callable. It does not by itself promise byte-for-byte parity for every upstream option. See Compatibility and current status for the verified scope and known boundaries.

Arguments and options

Arguments are positional. Keep their order when using bake() or Pipeline.then().

Index	Name	UI type	PyChef default	Accepted values / format
`0`	Key length	`number`	`1`	A Python integer or floating-point value
`1`	Sample length	`number`	`100`	A Python integer or floating-point value
`2`	Sample offset	`number`	`0`	A Python integer or floating-point value
`3`	Scheme	`option`	`'Standard'`	`'Standard'`, `'Input differential'`, `'Output differential'`
`4`	Null preserving	`boolean`	`False`	`True` or `False`
`5`	Print key	`boolean`	`True`	`True` or `False`
`6`	Output as hex	`boolean`	`False`	`True` or `False`
`7`	Crib (known plaintext string)	`binaryString`	`''`	`''`

Recipe template

Important

This is a call template built from the documented defaults. Replace placeholder values such as empty keys, paths, patterns, or lookup data before running it.

from pychef import bake

input_value = b"example"
args = [1, 100, 0, 'Standard', False, True, False, '']
result = bake(input_value, [{"op": 'XOR Brute Force', "args": args}])
print(result)

Pipeline example

from pychef import Pipeline

args = [1, 100, 0, 'Standard', False, True, False, '']
transform = Pipeline().then('XOR Brute Force', *args)
result = transform(b"example")

Direct call

pychef.ops.run_operation runs any registered operation as a plain function, under the active ExecutionPolicy (safe defaults, no network):

from pychef.ops import run_operation

args = [1, 100, 0, 'Standard', False, True, False, '']
result = run_operation('XOR Brute Force', b"example", args=args)

Common operations also have typed helpers in Direct operations.

Low-level operation module

Warning

The module below is an internal implementation detail. It applies no execution policy, resource limits, or error sanitization; prefer bake(), Pipeline, or pychef.ops for application code.

The registered entry point lives in pychef.operations.by_operation.xor_brute_force. Direct calls receive the input value and a positional argument tuple:

from pychef.operations.by_operation.xor_brute_force import run

result = run(b"example", tuple([1, 100, 0, 'Standard', False, True, False, '']))

pychef.operations.by_operation.xor_brute_force.run(value, args)

Run this operation using its shared internal implementation.

Parameters:

value (str | bytes)
args (Sequence[Any])

Return type:

str | bytes