public async Task SignCreateProofAndVerifyVaccination()
        {
            var unsignedDocument   = Utilities.LoadJson("Data/vaccination-certificate-unsigned.jsonld");
            var verificationMethod = new Bls12381G2Key2020(Utilities.LoadJson("Data/did_example_489398593_test.json"));

            var signedDocument = await LdSignatures.SignAsync(unsignedDocument, new ProofOptions
            {
                Suite = new BbsBlsSignature2020
                {
                    KeyPair            = verificationMethod.ToBlsKeyPair(),
                    VerificationMethod = "did:example:489398593#test"
                },
                Purpose = new AssertionMethodPurpose()
            });

            var revealDocument = Utilities.LoadJson("Data/vaccination-certificate-frame.jsonld");

            var derivedDocument = await LdSignatures.SignAsync(signedDocument, new ProofOptions
            {
                Suite = new BbsBlsSignatureProof2020
                {
                    RevealDocument = revealDocument
                },
                Purpose = new AssertionMethodPurpose()
            });

            var result = await LdSignatures.VerifyAsync(derivedDocument, new ProofOptions
            {
                Suite   = new BbsBlsSignatureProof2020(),
                Purpose = new AssertionMethodPurpose()
            });

            Assert.NotNull(result);
            Assert.Equal("did:example:489398593", result.Controller);
        }
        public async Task SignDocumentRevealSome()
        {
            var revealDocument   = Utilities.LoadJson("Data/test_vc_reveal_document.json");
            var unsignedDocument = Utilities.LoadJson("Data/test_vc.json");

            var verificationMethod = new Bls12381G2Key2020(Utilities.LoadJson("Data/did_example_489398593_test.json"));

            var signedDocument = await LdSignatures.SignAsync(unsignedDocument, new ProofOptions
            {
                Suite = new BbsBlsSignature2020
                {
                    KeyPair            = verificationMethod.ToBlsKeyPair(),
                    VerificationMethod = "did:example:489398593#test"
                },
                Purpose = new AssertionMethodPurpose()
            });

            var derivedDocument = await LdSignatures.SignAsync(signedDocument, new ProofOptions
            {
                Suite = new BbsBlsSignatureProof2020
                {
                    RevealDocument = revealDocument
                },
                Purpose = new AssertionMethodPurpose()
            });

            derivedDocument.Should().NotBeNull();
            derivedDocument["proof"].Should().NotBeNull();
            derivedDocument["proof"]["proofValue"].Should().NotBeNull();

            var verifyDerived = await LdSignatures.VerifyAsync(derivedDocument, new ProofOptions
            {
                Suite   = new BbsBlsSignatureProof2020(),
                Purpose = new AssertionMethodPurpose()
            });

            Assert.NotNull(verifyDerived);
            Assert.Equal(verifyDerived.Controller, verificationMethod.Controller);
        }