MD2

Category: Hashing

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

Input / output: ArrayBuffer → string

Background: https://wikipedia.org/wiki/MD2_(cryptography)

What it does

The MD2 (Message-Digest 2) algorithm is a cryptographic hash function developed by Ronald Rivest in 1989. The algorithm is optimized for 8-bit computers. Although MD2 is no longer considered secure, even as of 2014, it remains in use in public key infrastructures as part of certificates generated with MD2 and RSA. The message digest algorithm consists, by default, of 18 rounds.

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`	Rounds	`number`	`18`	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 = b"example"
args = [18]
result = bake(input_value, [{"op": 'MD2', "args": args}])
print(result)

Pipeline example

from pychef import Pipeline

args = [18]
transform = Pipeline().then('MD2', *args)
result = transform(b"example")

Dedicated operation module

The registered entry point lives in pychef.operations.by_operation.md2. Direct calls receive the input value and a positional argument tuple:

from pychef.operations.by_operation.md2 import run

result = run(b"example", tuple([18]))

pychef.operations.by_operation.md2.run(value, args)

Run this operation using its shared internal implementation.

Parameters:

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

Return type:

str | bytes