Affine Cipher Decode

Category: Ciphers

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

Input / output: string → string

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

What it does

The Affine cipher is a type of monoalphabetic substitution cipher. To decrypt, each letter in an alphabet is mapped to its numeric equivalent, decrypted by a mathematical function, and converted back to a letter.

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`	a	`number`	`1`	A Python integer or floating-point value
`1`	b	`number`	`0`	A Python integer or floating-point value

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 = [1, 0]
result = bake(input_value, [{"op": 'Affine Cipher Decode', "args": args}])
print(result)

Pipeline example

from pychef import Pipeline

args = [1, 0]
transform = Pipeline().then('Affine Cipher Decode', *args)
result = transform("example")

Dedicated operation module

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

from pychef.operations.by_operation.affine_cipher_decode import run

result = run("example", tuple([1, 0]))

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

Run this operation using its shared internal implementation.

Parameters:

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

Return type:

str | bytes