public async Task SignSampleDocument()
{
// an example document to sign
var document = JObject.Parse(@"{
'id': 'Alice'
}");
// signer key
var key = Ed25519VerificationKey2018.Generate();
// create proof
var signedDocument = await LdSignatures.SignAsync(
document,
new ProofOptions
{
Suite = new Ed25519Signature2018
{
Signer = key,
VerificationMethod = key.Id
},
Purpose = new AssertionMethodPurpose()
});
Console.WriteLine(signedDocument.ToString(Formatting.Indented));
}
public async Task SignAndVerifyDocument()
{
var aliceKey = new Ed25519VerificationKey2018(Mock.Alice_Keys.VerificationMethod.First() as JObject);
var signedDocument = await LdSignatures.SignAsync(
Mock.ExampleDoc,
new ProofOptions
{
Suite = new JcsEd25519Signature2020
{
Signer = aliceKey,
VerificationMethod = aliceKey.Id
},
Purpose = new AssertionMethodPurpose(),
DocumentLoader = Mock.DocumentLoader
});
var verified = await LdSignatures.VerifyAsync(
document: signedDocument,
options: new ProofOptions
{
Suite = new JcsEd25519Signature2020
{
Signer = aliceKey,
VerificationMethod = aliceKey.Id
},
Purpose = new AssertionMethodPurpose(),
DocumentLoader = Mock.DocumentLoader
});
Assert.NotNull(verified);
}
public void GenerateRandomKey()
{
var method = Ed25519VerificationKey2018.Generate();
Assert.NotNull(method);
Assert.NotNull(method.PublicKeyBase58);
Assert.NotNull(method.PrivateKeyBase58);
Assert.Equal(Ed25519VerificationKey2018.Name, method.TypeName);
}
public void VerifyPayload()
{
var method = Ed25519VerificationKey2018.Generate();
var payload = (ByteArray)Encoding.UTF8.GetBytes("my message");
var signature = method.Sign(payload);
var verified = method.Verify(signature, payload);
Assert.True(verified);
}
public void SignPayload()
{
var method = Ed25519VerificationKey2018.Generate();
var payload = Encoding.UTF8.GetBytes("my message");
var signature = method.Sign((ByteArray)payload);
Assert.NotNull(signature);
Assert.Equal(Chaos.NaCl.Ed25519.SignatureSizeInBytes, signature.Length);
}
public async Task SignDocument()
{
var aliceKey = new Ed25519VerificationKey2018(Mock.Alice_Keys.VerificationMethod.First() as JObject);
var signedDocument = await LdSignatures.SignAsync(
Mock.ExampleDoc,
new ProofOptions
{
Suite = new JcsEd25519Signature2020
{
Signer = aliceKey,
VerificationMethod = aliceKey.Id
},
Purpose = new AssertionMethodPurpose(),
DocumentLoader = Mock.DocumentLoader
});
Assert.NotNull(signedDocument);
Assert.NotNull(signedDocument["proof"]);
Assert.Equal("assertionMethod", signedDocument["proof"]?["proofPurpose"]);
Assert.NotNull(signedDocument["proof"]?["signatureValue"]);
Assert.Equal(aliceKey.Id, signedDocument["proof"]?["verificationMethod"]);
}
public async Task VerifyProofRandomKey()
{
var signer = new Ed25519VerificationKey2018(Mock.Diana_Keys.VerificationMethod.First() as JObject);
var document = new DidDocument {
Id = signer.Controller
};
var signedDocument = await LdSignatures.SignAsync(
document,
new ProofOptions
{
Suite = new Ed25519Signature2018
{
Signer = signer,
VerificationMethod = signer.Id
},
Purpose = new AssertionMethodPurpose(),
DocumentLoader = Mock.DocumentLoader
});
signedDocument["@context"] = new JArray(new[]
{
Constants.DID_V1_URL,
Constants.SECURITY_CONTEXT_V2_URL
});
var result = await LdSignatures.VerifyAsync(signedDocument, new ProofOptions
{
Suite = new Ed25519Signature2018(),
Purpose = new AssertionMethodPurpose(),
DocumentLoader = Mock.DocumentLoader
});
Assert.NotNull(result);
}
