Parity Bit

Category: Encoding

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

Input / output: string → string

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

What it does

A parity bit, or check bit, is the simplest form of error detection. It is a bit which is added to a string of bits and represents if the number of 1’s in the binary string is an even number or odd number. If a delimiter is specified, the parity bit calculation will be performed on each ‘block’ of the input data, where the blocks are created by slicing the input at each occurrence of the delimiter character

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`	Mode	`option`	`'Even Parity'`	`'Even Parity'`, `'Odd Parity'`
`1`	Postion	`option`	`'Start'`	`'Start'`, `'End'`
`2`	Encode or Decode	`option`	`'Encode'`	`'Encode'`, `'Decode'`
`3`	Delimiter	`shortString`	`''`	`''`

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 = "example"
args = ['Even Parity', 'Start', 'Encode', '']
result = bake(input_value, [{"op": 'Parity Bit', "args": args}])
print(result)

Pipeline example

from pychef import Pipeline

args = ['Even Parity', 'Start', 'Encode', '']
transform = Pipeline().then('Parity Bit', *args)
result = transform("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 = ['Even Parity', 'Start', 'Encode', '']
result = run_operation('Parity Bit', "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.parity_bit. Direct calls receive the input value and a positional argument tuple:

from pychef.operations.by_operation.parity_bit import run

result = run("example", tuple(['Even Parity', 'Start', 'Encode', '']))

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

Run this operation using its shared internal implementation.

Parameters:

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

Return type:

str | bytes