example.py

import json
from didself import registry
from jwcrypto import jwk
from didselfsvci import svci

# DID creation
# Generate DID and initial secret key
did_key = jwk.JWK.generate(kty='OKP', crv='Ed25519')
# Initialize registry
registry = registry.DIDSelfRegistry(did_key)
# Generate the DID document
did_key_dict = did_key.export(as_dict=True)
did = "did:self:" + did_key.thumbprint()
did_document = {
        'id': did,
        'assertion': [{
            'id': did + '#key1',
            'type': "JsonWebKey2020",
            'publicKeyJwk': did_key_dict
        }],  
    }
registry.create(did_document)
document, document_proof = registry.read()
file_data = "hello word"
metadata, metadata_proof= svci.generate_svci_header(file_data, did_key_dict, did)
file_header = []
file_header.append(document)
file_header.append(document_proof)
file_header.append(metadata_proof)
file = json.dumps(file_header) + "\n" + file_data
print(file)
print("-----Header size------")
print("DID document:", len(json.dumps(file_header[0])))
print("Proof:", len(json.dumps(file_header[1])))
print("Attestation:", len(json.dumps(file_header[2])))
print("Total:", len(json.dumps(file_header)))
result = svci.verify_svci(file, did.split(":")[2])
print(result)