ImportError: cannot import name keys

[SolarisYan]

hello, when i do this: from fastecdsa import keys, curve

it return an error like

ImportError: cannot import name keys

So how ?

[AntonKueltz]

If you are using v1.1.2 (i.e. if you installed via pip) or before the keys module does not exist yet. It is only available in the current "dev" version. A quick $ pip show fastecdsa should indicate the version. The old version uses fastecdsa.ecdsa.gen_keypair(). Usage for the older versions can be found in the accompanying README, or see the example below:

from fastecdsa import curve, ecdsa
from hashlib import sha384

m = "a message to sign via ECDSA"  # some message

''' use default curve and hash function (P256 and SHA2) '''
private_key, public_key = ecdsa.gen_keypair()
# standard signature, returns two integers
r, s = ecdsa.sign(m, private_key)
# should return True as the signature we just generated is valid.
valid = ecdsa.verify((r, s), m, public_key)

''' specify a different curve to use with ECDSA '''
private_key, public_key = ecdsa.gen_keypair(curve=curve.P224)
r, s = ecdsa.sign(m, private_key, curve=curve.P224)
valid = ecdsa.verify((r, s), m, public_key, curve=curve.P224)

''' specify a different hash function to use with ECDSA '''
private_key, public_key = ecdsa.gen_keypair()
r, s = ecdsa.sign(m, private_key, hashfunc=sha384)
valid = ecdsa.verify((r, s), m, public_key, hashfunc=sha384)

Hope that helps -Anton

[SolarisYan]

do you plan to add the function: keys ?

[AntonKueltz]

If you clone this repo and do $ pip install -e . inside it you'll have the newest version with the keys module. There no plans for a "keys" function.

[AntonKueltz]

The package is now at version 1.1.3 which includes the keys module.

[AntonKueltz]

Fixed in 8c2a545.