Cryptography

Python Libs

https://cryptography.io/en/latest/hazmat/primitives/asymmetric/serialization/

pynacl

# ed25519 seems to have a bug but it is a newer commit.
from cryptography.hazmat.primitives.asymmetric import ed25519
key = ed25519.Ed25519PrivateKey.generate()
pk = key.public_key().public_bytes(serialization.Encoding.OpenSSH,
                                   serialization.PublicFormat.OpenSSH)

Testing

url="https://portal.example.io/api/verify_jwt"
jwt_token=$(curl -s --request GET https://portal.example.io/api/get_jwt | jq .token | tr -d \")
curl ${url} \
   -H "Authorization: Bearer ${jwt_token}" \
   -H "Content-Type: application/json" \
   -X POST -d \
   '{"jsonrpc":"1.0","id":"curltext","method":"getnetworkinfo","params":[]}'

Notes

/dev/random vs /dev/urandom - know when you need or don't need it.

• https://unix.stackexchange.com/questions/324209/when-to-use-dev-random-vs-dev-urandom
• https://www.2uo.de/myths-about-urandom/