302 lines
8.3 KiB
Python
302 lines
8.3 KiB
Python
import json
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import asyncio
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import didkit
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# import multicodec
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# import multiformats
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# import nacl.encoding
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from ast import literal_eval
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# from pyvckit.sign_vc import sign
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from pyvckit.sign import sign
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from pyvckit.sign_vp import get_presentation
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from pyvckit.verify import verify_vc
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from pyvckit.verify import verify_vp
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from pyvckit.utils import now
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from pyvckit.did import generate_keys, generate_did
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def verify_credential(vc):
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async def inner():
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try:
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return await didkit.verify_credential(vc, '{"proofFormat": "ldp"}')
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except Exception:
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return False
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return asyncio.run(inner())
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def render_and_sign_credential(unsigned_vc, jwk_issuer):
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async def inner():
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signed_vc = await didkit.issue_credential(
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json.dumps(unsigned_vc),
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'{"proofFormat": "ldp"}',
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jwk_issuer
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)
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return signed_vc
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return asyncio.run(inner())
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def verify_presentation(vp: str):
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async def inner():
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str_res = await didkit.verify_presentation(vp, '{"proofFormat": "ldp"}')
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res = literal_eval(str_res)
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ok = res["warnings"] == [] and res["errors"] == []
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return ok, str_res
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valid, reason = asyncio.run(inner())
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if not valid:
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return False
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vp = json.loads(vp)
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for credential in vp["verifiableCredential"]:
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valid = verify_credential(json.dumps(credential))
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if not valid:
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return False
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return True
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def issue_verifiable_presentation(vc_list, jwk_holder, holder_did, presentation_id):
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async def inner(unsigned_vp):
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signed_vp = await didkit.issue_presentation(
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unsigned_vp,
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'{"proofFormat": "ldp"}',
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jwk_holder
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)
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return signed_vp
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unsigned_vp = json.dumps({
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"@context": [
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"https://www.w3.org/2018/credentials/v1"
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],
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"id": presentation_id,
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"type": [
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"VerifiablePresentation"
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],
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"holder": holder_did,
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"verifiableCredential": vc_list
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})
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return asyncio.run(inner(unsigned_vp))
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def test_key_from_didkit():
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key = didkit.generate_ed25519_key()
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did_didkit = didkit.key_to_did("key", key)
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did_pyvckit = generate_did(key)
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assert did_didkit == did_pyvckit
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def test_key_from_pyvckit():
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key = generate_keys()
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did_didkit = didkit.key_to_did("key", key)
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did_pyvckit = generate_did(key)
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assert did_didkit == did_pyvckit
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def test_pyvckit_credential_validated_from_didkit():
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key = generate_keys()
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did = generate_did(key)
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credential = {
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"@context": "https://www.w3.org/2018/credentials/v1",
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"id": "http://example.org/credentials/3731",
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"type": ["VerifiableCredential"],
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"credentialSubject": {
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"id": "did:key:z6MkgGXSJoacuuNdwU1rGfPpFH72GACnzykKTxzCCTZs6Z2M",
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},
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"issuer": {
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"id": did
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},
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"issuanceDate": now()
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}
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cred = json.dumps(credential)
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vc = sign(cred, key, did)
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result = verify_credential(json.dumps(vc))
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assert result == '{"checks":["proof"],"warnings":[],"errors":[]}'
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def test_didkit_credential_validated_from_pyvckit():
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key = didkit.generate_ed25519_key()
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did = didkit.key_to_did("key", key)
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credential = {
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"@context": "https://www.w3.org/2018/credentials/v1",
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"id": "http://example.org/credentials/3731",
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"type": ["VerifiableCredential"],
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"credentialSubject": {
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"id": "did:key:z6MkgGXSJoacuuNdwU1rGfPpFH72GACnzykKTxzCCTZs6Z2M",
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},
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"issuer": {
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"id": did
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},
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"issuanceDate": now()
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}
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cred_signed = render_and_sign_credential(credential, key)
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result = verify_vc(cred_signed)
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assert result
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def test_pyvckit_presentation_validated_from_didkit():
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key = generate_keys()
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did = generate_did(key)
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credential = {
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"@context": "https://www.w3.org/2018/credentials/v1",
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"id": "http://example.org/credentials/3731",
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"type": ["VerifiableCredential"],
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"credentialSubject": {
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"id": "did:key:z6MkgGXSJoacuuNdwU1rGfPpFH72GACnzykKTxzCCTZs6Z2M",
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},
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"issuer": {
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"id": did
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},
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"issuanceDate": now()
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}
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cred = json.dumps(credential)
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vc = sign(cred, key, did)
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vc_json = json.dumps(vc)
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holder_key = generate_keys()
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holder_did = generate_did(holder_key)
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unsigned_vp = get_presentation(vc_json, holder_did)
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vp = sign(unsigned_vp, holder_key, holder_did)
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result = verify_presentation(json.dumps(vp))
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assert result
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def test_fail_pyvckit_presentation_validated_from_didkit():
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key = generate_keys()
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did = generate_did(key)
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credential = {
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"@context": "https://www.w3.org/2018/credentials/v1",
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"id": "http://example.org/credentials/3731",
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"type": ["VerifiableCredential"],
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"credentialSubject": {
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"id": "did:key:z6MkgGXSJoacuuNdwU1rGfPpFH72GACnzykKTxzCCTZs6Z2M",
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},
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"issuer": {
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"id": did
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},
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"issuanceDate": now()
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}
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cred = json.dumps(credential)
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vc = sign(cred, key, did)
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vc_json = json.dumps(vc)
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holder_key = generate_keys()
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holder_did = generate_did(holder_key)
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unsigned_vp = get_presentation(vc_json, holder_did)
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vp = sign(unsigned_vp, holder_key, holder_did)
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vp["verifiableCredential"][0]["id"] = "bar"
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vp_fail = json.dumps(vp)
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result = verify_vp(vp_fail)
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result2 = verify_presentation(vp_fail)
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assert result == result2
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assert not result
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def test_didkit_presentation_validated_from_pyvckit():
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key = didkit.generate_ed25519_key()
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did = didkit.key_to_did("key", key)
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credential = {
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"@context": "https://www.w3.org/2018/credentials/v1",
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"id": "http://example.org/credentials/3731",
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"type": ["VerifiableCredential"],
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"credentialSubject": {
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"id": "did:key:z6MkgGXSJoacuuNdwU1rGfPpFH72GACnzykKTxzCCTZs6Z2M",
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},
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"issuer": {
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"id": did
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},
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"issuanceDate": now()
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}
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cred_signed = render_and_sign_credential(credential, key)
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holder_key = didkit.generate_ed25519_key()
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holder_did = didkit.key_to_did("key", holder_key)
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vc_list = [json.loads(cred_signed)]
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vp_signed = issue_verifiable_presentation(vc_list, holder_key, holder_did, "1")
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result = verify_vp(vp_signed)
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assert result
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def test_fail_didkit_presentation_validated_from_pyvckit():
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key = didkit.generate_ed25519_key()
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did = didkit.key_to_did("key", key)
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credential = {
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"@context": "https://www.w3.org/2018/credentials/v1",
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"id": "http://example.org/credentials/3731",
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"type": ["VerifiableCredential"],
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"credentialSubject": {
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"id": "did:key:z6MkgGXSJoacuuNdwU1rGfPpFH72GACnzykKTxzCCTZs6Z2M",
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},
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"issuer": {
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"id": did
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},
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"issuanceDate": now()
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}
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cred_signed = render_and_sign_credential(credential, key)
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holder_key = didkit.generate_ed25519_key()
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holder_did = didkit.key_to_did("key", holder_key)
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vc_list = [json.loads(cred_signed)]
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vp_signed = issue_verifiable_presentation(vc_list, holder_key, holder_did, "1")
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vp = json.loads(vp_signed)
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vp["verifiableCredential"][0]["id"] = "bar"
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vp_fail = json.dumps(vp)
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result = verify_vp(vp_fail)
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assert not result
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def test_fail2_didkit_presentation_validated_from_pyvckit():
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key = didkit.generate_ed25519_key()
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did = didkit.key_to_did("key", key)
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credential = {
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"@context": "https://www.w3.org/2018/credentials/v1",
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"id": "http://example.org/credentials/3731",
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"type": ["VerifiableCredential"],
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"credentialSubject": {
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"id": "did:key:z6MkgGXSJoacuuNdwU1rGfPpFH72GACnzykKTxzCCTZs6Z2M",
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},
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"issuer": {
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"id": did
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},
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"issuanceDate": now()
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}
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cred_signed = render_and_sign_credential(credential, key)
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holder_key = didkit.generate_ed25519_key()
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holder_did = didkit.key_to_did("key", holder_key)
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vc_list = [json.loads(cred_signed)]
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vp_signed = issue_verifiable_presentation(vc_list, holder_key, holder_did, "1")
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vp = json.loads(vp_signed)
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vp['proof']['created'] = now()
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vp_fail = json.dumps(vp)
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result = verify_vp(vp_fail)
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result2 = verify_presentation(vp_fail)
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assert result == result2
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assert not result
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