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Operations

Info

Cryptographic operations refer to the signing and encryption specified in the JWS (JSON Web Signature) and JWE (JSON Web Encryption) standards, respectively.

Sign dataclass

JWS serialization implementation.

add_key(kr)

Bind signature keys to JWS serialization.

Parameters:

Name Type Description Default
kr Keyring

Keyring to assoc with signature

 required

Returns:

Type Description
Sign

Sign object
Source code in nucleus/sdk/expose/crypto.py 
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def add_key(self, kr: Keyring) -> Sign:
    """Bind signature keys to JWS serialization.

    :param kr: Keyring to assoc with signature
    :return: Sign object
    """

    header = {**dict(kr), **dict(self._s8r)}
    self._jws.add_signature(kr.jwk(), None, json_encode(header))
    return self

serialize()

Trigger and notify to underneath serializer for JWS post-processing . In this step additional data could be added/modified into JWS.

Returns:

Type Description
Serializer

The ready to use serializer object
Source code in nucleus/sdk/expose/crypto.py 
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def serialize(self) -> Serializer:
    """Trigger and notify to underneath serializer for JWS post-processing .
    In this step additional data could be added/modified into JWS.

    :return: The ready to use serializer object
    """
    return self._s8r.update(self._jws)

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