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Add PSK support to pyOpenSSL

Project description


Add PSK support to pyOpenSSL.


$ pip install pyopenssl-psk


Patch Method

  • patch_context()

    Add PSK related methods to the OpenSSL.SSL.Context class.

from openssl_psk import patch_context


Server Methods

  • Context.use_psk_identity_hint(hint: bytes) -> None

    Set the server PSK identity hint.

  • Context.set_psk_server_callback(callback: server_callback) -> None

    Set a callback to populate the server PSK.

    server_callback(connection: Connection, client_identity: bytes) -> psk: bytes

    User provided callback function to populate the connection PSK.

from OpenSSL.SSL import Context, Connection, TLSv1_2_METHOD

    b'pre_shared_key_identity': b'pre_shared_key',

def server_callback(conn, client_identity):
    return PSK_MAP[client_identity]

ctx = Context(TLSv1_2_METHOD)
server = Connection(ctx)

Client Methods

  • Context.set_psk_client_callback(callback: client_callback) -> None

    Set a callback to populate the client PSK identity and PSK.

    client_callback(connection: Connection, identity_hint: bytes) -> tuple(psk_identity: bytes, psk: bytes)

    User provided callback function to populate the connection PSK identity and PSK.

from OpenSSL.SSL import Context, Connection, TLSv1_2_METHOD

def client_callback(conn, identity_hint):
    return (b'pre_shared_key_identity', b'pre_shared_key')

ctx = Context(TLSv1_2_METHOD)
client = Connection(ctx)

See OpenSSL.SSL documentation for more information.

Project details

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