PCA™ - Code Samples

The following code samples are written in Python and provided as samples only.

Use of the samples are for illustrative purpose only.

create_jwk.py

# create_jwk.py
# !pip3 install python_jwt
 
import python_jwt as jwt
import jwcrypto.jwk as jwk
import datetime
 
print("\n Create a JWK with 2048bit RSA keypair\n")
 
key = jwk.JWK.generate(kty='RSA', size=2048, kid='eee9f17a3b598fd86417a980b591fbe6')
 
pub_key = key.export_public()
priv_key = key.export_private()
 
print("\n Public key\n", pub_key)
print("\n Private key\n", priv_key)

create_jwt.py

# create_jwt.py
# !pip3 install python_jwt
 
import jwcrypto.jwt as jwt
import jwcrypto.jwk as jwk
import datetime
from pathlib import Path
 
header = {
  "alg": "RS256",
  "kid": "eee9f17a3b598fd86417a980b591fbe6",
  "typ": "JWT"
}
 
claims = {
  "iss": "8b0914e0-09b4-47d7-9fc9-eb3ddaf2f7aa",
  "sub": "8b0914e0-09b4-47d7-9fc9-eb3ddaf2f7aa",
  "aud": "https://pca-svt.digitalhealth.gov.au/PcaAuthApi/v2/auth/token",
  "exp": "1352660008",
  "jti": "rand0m-n0n-reusable-jwt-1d-123"
}
 
def get_signing_key(filename):
    with open(filename) as priv_file:
        key = jwk.JWK.from_json(priv_file.read())
        return key
     
print("\n# Encoded JWT with RS256 Signature\n")
file_path = (Path(__file__).parent / "../json/my-private-key.json").resolve()
rsa_signing_jwk = get_signing_key(file_path)
Token = jwt.JWT(header, claims)
Token.make_signed_token(rsa_signing_jwk)
print(Token.serialize())

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