ECDSA Sign

Category: Public Key

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

Input / output: string → string

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

What it does

Sign a plaintext message with a PEM encoded EC key.

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`	ECDSA Private Key (PEM)	`text`	`'-----BEGIN EC PRIVATE KEY-----'`	`'-----BEGIN EC PRIVATE KEY-----'`
`1`	Message Digest Algorithm	`option`	`'SHA-256'`	`'SHA-256'`, `'SHA-384'`, `'SHA-512'`, `'SHA-1'`, `'MD5'`
`2`	Output Format	`option`	`'ASN.1 HEX'`	`'ASN.1 HEX'`, `'P1363 HEX'`, `'JSON Web Signature'`, `'Raw JSON'`

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 = ['-----BEGIN EC PRIVATE KEY-----', 'SHA-256', 'ASN.1 HEX']
result = bake(input_value, [{"op": 'ECDSA Sign', "args": args}])
print(result)

Pipeline example

from pychef import Pipeline

args = ['-----BEGIN EC PRIVATE KEY-----', 'SHA-256', 'ASN.1 HEX']
transform = Pipeline().then('ECDSA Sign', *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 = ['-----BEGIN EC PRIVATE KEY-----', 'SHA-256', 'ASN.1 HEX']
result = run_operation('ECDSA Sign', "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.ecdsa_sign. Direct calls receive the input value and a positional argument tuple:

from pychef.operations.by_operation.ecdsa_sign import run

result = run("example", tuple(['-----BEGIN EC PRIVATE KEY-----', 'SHA-256', 'ASN.1 HEX']))

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

Run this operation using its shared internal implementation.

Parameters:

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

Return type:

str | bytes