Chilkat2-Python

Export a Private Key as a JWK

Demonstrates the Chilkat PrivateKey.GetJwk method, which exports the key as a compact JWK (JSON Web Key). It takes no arguments; binary values use Base64url without padding.

Note: The file paths are relative to the application's current working directory. Absolute paths may also be used. Supply the paths appropriate to your own environment.

Background: JWK is the JSON key format used across modern web security — JWT, OAuth, OpenID Connect. Exporting to it lets you publish a key into a JWK Set or hand it to a web framework that speaks JWK. Note this is the private JWK: it includes the private parameters (d and, for RSA, the CRT values), so it is highly sensitive — publish only the public JWK derived from ToPublicKey when sharing.

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Chilkat2-Python

import sys
import chilkat2

success = False

# Load a private key to export.
privKey = chilkat2.PrivateKey()
success = privKey.LoadPemFile("qa_data/private.pem")
if (success == False):
    print(privKey.LastErrorText)
    sys.exit()

# Export as a compact JWK (JSON Web Key).  Binary values use Base64url without padding.
jwk = privKey.GetJwk()
if (privKey.LastMethodSuccess == False):
    print(privKey.LastErrorText)
    sys.exit()

print(jwk)