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Packed.cs
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using System;
using System.Linq;
using System.Security.Cryptography;
using System.Security.Cryptography.X509Certificates;
using fido2_net_lib.Test;
using Fido2NetLib;
using Fido2NetLib.Cbor;
using Fido2NetLib.Objects;
using Xunit;
namespace Test.Attestation
{
public class Packed : Fido2Tests.Attestation
{
public Packed()
{
_attestationObject = new CborMap { { "fmt", "packed" } };
}
[Fact]
public void TestSelf()
{
Fido2Tests._validCOSEParameters.ForEach(async ((COSE.KeyType, COSE.Algorithm, COSE.EllipticCurve) param) =>
{
var (type, alg, crv) = param;
var signature = SignData(type, alg, crv);
_attestationObject.Set("attStmt", new CborMap {
{ "alg", alg },
{ "sig", signature }
});
var res = await MakeAttestationResponse();
Assert.Equal(string.Empty, res.ErrorMessage);
Assert.Equal("ok", res.Status);
Assert.Equal(_aaguid, res.Result.Aaguid);
Assert.Equal(_signCount, res.Result.Counter);
Assert.Equal("packed", res.Result.CredType);
Assert.Equal(_credentialID, res.Result.CredentialId);
Assert.Null(res.Result.ErrorMessage);
Assert.Equal(_credentialPublicKey.GetBytes(), res.Result.PublicKey);
Assert.Null(res.Result.Status);
Assert.Equal("Test User", res.Result.User.DisplayName);
Assert.Equal(System.Text.Encoding.UTF8.GetBytes("testuser"), res.Result.User.Id);
Assert.Equal("testuser", res.Result.User.Name);
_attestationObject = new CborMap { { "fmt", "packed" } };
});
}
[Fact]
public void TestSelfAlgMismatch()
{
var (type, alg, curve) = Fido2Tests._validCOSEParameters[0];
var signature = SignData(type, alg, curve);
_attestationObject.Add("attStmt", new CborMap {
{ "alg", COSE.Algorithm.ES384 },
{ "sig", signature }
});
var ex = Assert.ThrowsAsync<Fido2VerificationException>(() => MakeAttestationResponse());
Assert.Equal("Algorithm mismatch between credential public key and authenticator data in self attestation statement", ex.Result.Message);
}
[Fact]
public void TestSelfBadSig()
{
var (type, alg, crv) = Fido2Tests._validCOSEParameters[0];
var signature = SignData(type, alg, crv);
_attestationObject.Add("attStmt", new CborMap {
{ "alg", alg },
{ "sig", new byte[] { 0x30, 0x45, 0x02, 0x20, 0x11, 0x9b, 0x6f, 0xa8, 0x1c, 0xe1, 0x75, 0x9e, 0xbe, 0xf1, 0x52, 0xa6, 0x99, 0x40, 0x5e, 0xd6, 0x6a, 0xcc, 0x01, 0x33, 0x65, 0x18, 0x05, 0x00, 0x96, 0x28, 0x29, 0xbe, 0x85, 0x57, 0xb7, 0x1d, 0x02, 0x21, 0x00, 0x94, 0x50, 0x1d, 0xf1, 0x90, 0x03, 0xa4, 0x4d, 0xa4, 0xdf, 0x9f, 0xbb, 0xb5, 0xe4, 0xce, 0x91, 0x6b, 0xc3, 0x90, 0xe8, 0x38, 0x99, 0x66, 0x4f, 0xa5, 0xc4, 0x0c, 0xf3, 0xed, 0xe3, 0xda, 0x83 } }
});
var ex = Assert.ThrowsAsync<Fido2VerificationException>(() => MakeAttestationResponse());
Assert.Equal("Failed to validate signature", ex.Result.Message);
}
[Fact]
public void TestMissingAlg()
{
var (type, alg, crv) = Fido2Tests._validCOSEParameters[0];
var signature = SignData(type, alg, crv);
_attestationObject.Add("attStmt", new CborMap { { "sig", signature } });
var ex = Assert.ThrowsAsync<Fido2VerificationException>(() => MakeAttestationResponse());
Assert.Equal("Invalid packed attestation algorithm", ex.Result.Message);
}
[Fact]
public void TestEcdaaKeyIdPresent()
{
var (type, alg, crv) = Fido2Tests._validCOSEParameters[0];
var signature = SignData(type, alg, crv);
_attestationObject.Add("attStmt", new CborMap {
{ "alg", alg },
{ "sig", signature },
{ "ecdaaKeyId", signature }
});
var ex = Assert.ThrowsAsync<Fido2VerificationException>(() => MakeAttestationResponse());
Assert.Equal("ECDAA is not yet implemented", ex.Result.Message);
}
[Fact]
public void TestEmptyAttStmt()
{
var (type, alg, crv) = Fido2Tests._validCOSEParameters[0];
var signature = SignData(type, alg, crv);
_attestationObject.Add("attStmt", new CborMap { });
var ex = Assert.ThrowsAsync<Fido2VerificationException>(() => MakeAttestationResponse());
Assert.Equal("Attestation format packed must have attestation statement", ex.Result.Message);
}
[Fact]
public void TestAlgNaN()
{
var (type, alg, crv) = Fido2Tests._validCOSEParameters[0];
var signature = SignData(type, alg, crv);
_attestationObject.Add("attStmt", new CborMap {
{ "alg", "invalid alg" },
{ "sig", signature }
});
var ex = Assert.ThrowsAsync<Fido2VerificationException>(() => MakeAttestationResponse());
Assert.Equal("Invalid packed attestation algorithm", ex.Result.Message);
}
[Fact]
public void TestSigNull()
{
var (type, alg, crv) = Fido2Tests._validCOSEParameters[0];
var signature = SignData(type, alg, crv);
_attestationObject.Add("attStmt", new CborMap {
{ "alg", alg },
{ "sig", CborNull.Instance }
});
var ex = Assert.ThrowsAsync<Fido2VerificationException>(() => MakeAttestationResponse());
Assert.Equal("Invalid packed attestation signature", ex.Result.Message);
}
[Fact]
public void TestSigNotByteString()
{
var (type, alg, crv) = Fido2Tests._validCOSEParameters[0];
var signature = SignData(type, alg, crv);
_attestationObject.Add("attStmt", new CborMap {
{ "alg", alg },
{ "sig", "walrus" }
});
var ex = Assert.ThrowsAsync<Fido2VerificationException>(() => MakeAttestationResponse());
Assert.Equal("Invalid packed attestation signature", ex.Result.Message);
}
[Fact]
public void TestSigByteStringZeroLen()
{
var (type, alg, crv) = Fido2Tests._validCOSEParameters[0];
var signature = SignData(type, alg, crv);
_attestationObject.Add("attStmt", new CborMap {
{ "alg", alg },
{ "sig", new byte[0] }
});
var ex = Assert.ThrowsAsync<Fido2VerificationException>(() => MakeAttestationResponse());
Assert.Equal("Invalid packed attestation signature", ex.Result.Message);
}
[Fact]
public void TestFull()
{
Fido2Tests._validCOSEParameters.ForEach(async ((COSE.KeyType, COSE.Algorithm, COSE.EllipticCurve) param) =>
{
var (type, alg, curve) = param;
if (type is COSE.KeyType.OKP)
{
return;
}
X509Certificate2 root, attestnCert;
DateTimeOffset notBefore = DateTimeOffset.UtcNow;
DateTimeOffset notAfter = notBefore.AddDays(2);
var attDN = new X500DistinguishedName("CN=Testing, OU=Authenticator Attestation, O=FIDO2-NET-LIB, C=US");
Fido2.CredentialMakeResult res = null;
switch (type)
{
case COSE.KeyType.EC2:
using (var ecdsaRoot = ECDsa.Create())
{
var rootRequest = new CertificateRequest(rootDN, ecdsaRoot, HashAlgorithmName.SHA256);
rootRequest.CertificateExtensions.Add(caExt);
ECCurve eCCurve = ECCurve.NamedCurves.nistP256;
switch (curve)
{
case COSE.EllipticCurve.P384:
eCCurve = ECCurve.NamedCurves.nistP384;
break;
case COSE.EllipticCurve.P521:
eCCurve = ECCurve.NamedCurves.nistP521;
break;
case COSE.EllipticCurve.P256K:
if (OperatingSystem.IsMacOS())
{
// see https://github.com/dotnet/runtime/issues/47770
throw new PlatformNotSupportedException($"No support currently for secP256k1 on MacOS");
}
eCCurve = ECCurve.CreateFromFriendlyName("secP256k1");
break;
}
using (root = rootRequest.CreateSelfSigned(
notBefore,
notAfter))
using (var ecdsaAtt = ECDsa.Create(eCCurve))
{
var attRequest = new CertificateRequest(attDN, ecdsaAtt, HashAlgorithmName.SHA256);
attRequest.CertificateExtensions.Add(notCAExt);
attRequest.CertificateExtensions.Add(idFidoGenCeAaguidExt);
var serial = new byte[12];
RandomNumberGenerator.Fill(serial);
using (X509Certificate2 publicOnly = attRequest.Create(
root,
notBefore,
notAfter,
serial))
{
attestnCert = publicOnly.CopyWithPrivateKey(ecdsaAtt);
}
var X5c = new CborArray {
attestnCert.RawData,
root.RawData
};
var signature = SignData(type, alg, curve, ecdsa: ecdsaAtt);
_attestationObject.Set("attStmt", new CborMap {
{ "alg", alg },
{ "sig", signature },
{ "x5c", X5c }
});
res = await MakeAttestationResponse();
}
}
break;
case COSE.KeyType.RSA:
using (RSA rsaRoot = RSA.Create())
{
RSASignaturePadding padding = RSASignaturePadding.Pss;
switch (alg) // https://www.iana.org/assignments/cose/cose.xhtml#algorithms
{
case COSE.Algorithm.RS1:
case COSE.Algorithm.RS256:
case COSE.Algorithm.RS384:
case COSE.Algorithm.RS512:
padding = RSASignaturePadding.Pkcs1;
break;
}
var rootRequest = new CertificateRequest(rootDN, rsaRoot, HashAlgorithmName.SHA256, padding);
rootRequest.CertificateExtensions.Add(caExt);
using (root = rootRequest.CreateSelfSigned(
notBefore,
notAfter))
using (var rsaAtt = RSA.Create())
{
var attRequest = new CertificateRequest(attDN, rsaAtt, HashAlgorithmName.SHA256, padding);
attRequest.CertificateExtensions.Add(notCAExt);
attRequest.CertificateExtensions.Add(idFidoGenCeAaguidExt);
var serial = new byte[12];
RandomNumberGenerator.Fill(serial);
using (X509Certificate2 publicOnly = attRequest.Create(
root,
notBefore,
notAfter,
serial))
{
attestnCert = publicOnly.CopyWithPrivateKey(rsaAtt);
}
var X5c = new CborArray { attestnCert.RawData, root.RawData };
var signature = SignData(type, alg, COSE.EllipticCurve.Reserved, rsa: rsaAtt);
_attestationObject.Set("attStmt", new CborMap {
{ "alg", alg },
{ "sig", signature },
{ "x5c", X5c }
});
res = await MakeAttestationResponse();
}
}
break;
case COSE.KeyType.OKP:
{
var avr = new AssertionVerificationResult()
{
CredentialId = new byte[] { 0xf1, 0xd0 },
ErrorMessage = string.Empty,
Status = "ok",
};
}
break;
}
Assert.Equal(string.Empty, res.ErrorMessage);
Assert.Equal("ok", res.Status);
Assert.Equal(_aaguid, res.Result.Aaguid);
Assert.Equal(_signCount, res.Result.Counter);
Assert.Equal("packed", res.Result.CredType);
Assert.Equal(_credentialID, res.Result.CredentialId);
Assert.Null(res.Result.ErrorMessage);
Assert.Equal(_credentialPublicKey.GetBytes(), res.Result.PublicKey);
Assert.Null(res.Result.Status);
Assert.Equal("Test User", res.Result.User.DisplayName);
Assert.Equal(System.Text.Encoding.UTF8.GetBytes("testuser"), res.Result.User.Id);
Assert.Equal("testuser", res.Result.User.Name);
_attestationObject = new CborMap { { "fmt", "packed" } };
});
}
[Fact]
public void TestFullMissingX5c()
{
var (type, alg, curve) = Fido2Tests._validCOSEParameters[0];
X509Certificate2 root, attestnCert;
DateTimeOffset notBefore = DateTimeOffset.UtcNow;
DateTimeOffset notAfter = notBefore.AddDays(2);
var attDN = new X500DistinguishedName("CN=Testing, OU=Authenticator Attestation, O=FIDO2-NET-LIB, C=US");
using (var ecdsaRoot = ECDsa.Create())
{
var rootRequest = new CertificateRequest(rootDN, ecdsaRoot, HashAlgorithmName.SHA256);
rootRequest.CertificateExtensions.Add(caExt);
ECCurve eCCurve = ECCurve.NamedCurves.nistP256;
using (root = rootRequest.CreateSelfSigned(
notBefore,
notAfter))
using (var ecdsaAtt = ECDsa.Create(eCCurve))
{
var attRequest = new CertificateRequest(attDN, ecdsaAtt, HashAlgorithmName.SHA256);
attRequest.CertificateExtensions.Add(notCAExt);
attRequest.CertificateExtensions.Add(idFidoGenCeAaguidExt);
var serial = new byte[12];
RandomNumberGenerator.Fill(serial);
using (X509Certificate2 publicOnly = attRequest.Create(
root,
notBefore,
notAfter,
serial))
{
attestnCert = publicOnly.CopyWithPrivateKey(ecdsaAtt);
}
var X5c = new CborArray { attestnCert.RawData, root.RawData };
var signature = SignData(type, alg, curve, ecdsa: ecdsaAtt);
_attestationObject.Add("attStmt", new CborMap {
{ "alg", alg },
{ "sig", signature },
{ "x5c", CborNull.Instance }
});
var ex = Assert.ThrowsAsync<Fido2VerificationException>(() => MakeAttestationResponse());
Assert.Equal("Malformed x5c array in packed attestation statement", ex.Result.Message);
}
}
}
[Fact]
public void TestFullX5cNotArray()
{
var (type, alg, curve) = Fido2Tests._validCOSEParameters[0];
X509Certificate2 root, attestnCert;
DateTimeOffset notBefore = DateTimeOffset.UtcNow;
DateTimeOffset notAfter = notBefore.AddDays(2);
var attDN = new X500DistinguishedName("CN=Testing, OU=Authenticator Attestation, O=FIDO2-NET-LIB, C=US");
using (var ecdsaRoot = ECDsa.Create())
{
var rootRequest = new CertificateRequest(rootDN, ecdsaRoot, HashAlgorithmName.SHA256);
rootRequest.CertificateExtensions.Add(caExt);
ECCurve eCCurve = ECCurve.NamedCurves.nistP256;
using (root = rootRequest.CreateSelfSigned(
notBefore,
notAfter))
using (var ecdsaAtt = ECDsa.Create(eCCurve))
{
var attRequest = new CertificateRequest(attDN, ecdsaAtt, HashAlgorithmName.SHA256);
attRequest.CertificateExtensions.Add(notCAExt);
attRequest.CertificateExtensions.Add(idFidoGenCeAaguidExt);
var serial = new byte[12];
RandomNumberGenerator.Fill(serial);
using (X509Certificate2 publicOnly = attRequest.Create(
root,
notBefore,
notAfter,
serial))
{
attestnCert = publicOnly.CopyWithPrivateKey(ecdsaAtt);
}
var X5c = new CborArray { attestnCert.RawData, root.RawData };
var signature = SignData(type, alg, curve, ecdsa: ecdsaAtt);
_attestationObject.Add("attStmt", new CborMap {
{ "alg", alg },
{ "sig", signature },
{ "x5c", "boomerang" }
});
var ex = Assert.ThrowsAsync<Fido2VerificationException>(() => MakeAttestationResponse());
Assert.Equal("Malformed x5c array in packed attestation statement", ex.Result.Message);
}
}
}
[Fact]
public void TestFullX5cCountNotOne()
{
var (type, alg, curve) = Fido2Tests._validCOSEParameters[0];
X509Certificate2 root, attestnCert;
DateTimeOffset notBefore = DateTimeOffset.UtcNow;
DateTimeOffset notAfter = notBefore.AddDays(2);
var attDN = new X500DistinguishedName("CN=Testing, OU=Authenticator Attestation, O=FIDO2-NET-LIB, C=US");
using (var ecdsaRoot = ECDsa.Create())
{
var rootRequest = new CertificateRequest(rootDN, ecdsaRoot, HashAlgorithmName.SHA256);
rootRequest.CertificateExtensions.Add(caExt);
ECCurve eCCurve = ECCurve.NamedCurves.nistP256;
using (root = rootRequest.CreateSelfSigned(
notBefore,
notAfter))
using (var ecdsaAtt = ECDsa.Create(eCCurve))
{
var attRequest = new CertificateRequest(attDN, ecdsaAtt, HashAlgorithmName.SHA256);
attRequest.CertificateExtensions.Add(notCAExt);
attRequest.CertificateExtensions.Add(idFidoGenCeAaguidExt);
var serial = new byte[12];
RandomNumberGenerator.Fill(serial);
using (X509Certificate2 publicOnly = attRequest.Create(
root,
notBefore,
notAfter,
serial))
{
attestnCert = publicOnly.CopyWithPrivateKey(ecdsaAtt);
}
var x5c = new CborArray { attestnCert.RawData, root.RawData };
var signature = SignData(type, alg, COSE.EllipticCurve.Reserved, ecdsa: ecdsaAtt);
_attestationObject.Add("attStmt", new CborMap {
{ "alg", alg },
{ "sig", signature},
{ "x5c", new CborArray { new byte[0], new byte[0] } }
});
var ex = Assert.ThrowsAsync<Fido2VerificationException>(() => MakeAttestationResponse());
Assert.Equal("Malformed x5c cert found in packed attestation statement", ex.Result.Message);
}
}
}
[Fact]
public void TestFullX5cValueNotByteString()
{
var (type, alg, curve) = Fido2Tests._validCOSEParameters[0];
X509Certificate2 root, attestnCert;
DateTimeOffset notBefore = DateTimeOffset.UtcNow;
DateTimeOffset notAfter = notBefore.AddDays(2);
var attDN = new X500DistinguishedName("CN=Testing, OU=Authenticator Attestation, O=FIDO2-NET-LIB, C=US");
using (var ecdsaRoot = ECDsa.Create())
{
var rootRequest = new CertificateRequest(rootDN, ecdsaRoot, HashAlgorithmName.SHA256);
rootRequest.CertificateExtensions.Add(caExt);
ECCurve eCCurve = ECCurve.NamedCurves.nistP256;
using (root = rootRequest.CreateSelfSigned(
notBefore,
notAfter))
using (var ecdsaAtt = ECDsa.Create(eCCurve))
{
var attRequest = new CertificateRequest(attDN, ecdsaAtt, HashAlgorithmName.SHA256);
attRequest.CertificateExtensions.Add(notCAExt);
attRequest.CertificateExtensions.Add(idFidoGenCeAaguidExt);
var serial = new byte[12];
RandomNumberGenerator.Fill(serial);
using (X509Certificate2 publicOnly = attRequest.Create(
root,
notBefore,
notAfter,
serial))
{
attestnCert = publicOnly.CopyWithPrivateKey(ecdsaAtt);
}
var X5c = new CborArray { attestnCert.RawData, root.RawData };
var signature = SignData(type, alg, COSE.EllipticCurve.Reserved, ecdsa: ecdsaAtt);
_attestationObject.Add("attStmt", new CborMap {
{ "alg", alg },
{ "sig", signature },
{ "x5c", new CborArray { "x" } }
});
var ex = Assert.ThrowsAsync<Fido2VerificationException>(() => MakeAttestationResponse());
Assert.Equal("Malformed x5c cert found in packed attestation statement", ex.Result.Message);
}
}
}
[Fact]
public void TestFullX5cValueZeroLengthByteString()
{
var (type, alg, curve) = Fido2Tests._validCOSEParameters[0];
X509Certificate2 root, attestnCert;
DateTimeOffset notBefore = DateTimeOffset.UtcNow;
DateTimeOffset notAfter = notBefore.AddDays(2);
var attDN = new X500DistinguishedName("CN=Testing, OU=Authenticator Attestation, O=FIDO2-NET-LIB, C=US");
using (var ecdsaRoot = ECDsa.Create())
{
var rootRequest = new CertificateRequest(rootDN, ecdsaRoot, HashAlgorithmName.SHA256);
rootRequest.CertificateExtensions.Add(caExt);
ECCurve eCCurve = ECCurve.NamedCurves.nistP256;
using (root = rootRequest.CreateSelfSigned(
notBefore,
notAfter))
using (var ecdsaAtt = ECDsa.Create(eCCurve))
{
var attRequest = new CertificateRequest(attDN, ecdsaAtt, HashAlgorithmName.SHA256);
attRequest.CertificateExtensions.Add(notCAExt);
attRequest.CertificateExtensions.Add(idFidoGenCeAaguidExt);
var serial = new byte[12];
RandomNumberGenerator.Fill(serial);
using (X509Certificate2 publicOnly = attRequest.Create(
root,
notBefore,
notAfter,
serial))
{
attestnCert = publicOnly.CopyWithPrivateKey(ecdsaAtt);
}
var X5c = new CborArray { attestnCert.RawData, root.RawData };
var signature = SignData(type, alg, curve, ecdsa: ecdsaAtt);
_attestationObject.Add("attStmt", new CborMap {
{ "alg", alg },
{ "sig", signature },
{ "x5c", new CborArray { new byte[0] } }
});
var ex = Assert.ThrowsAsync<Fido2VerificationException>(() => MakeAttestationResponse());
Assert.Equal("Malformed x5c cert found in packed attestation statement", ex.Result.Message);
}
}
}
[Fact]
public void TestFullX5cCertExpired()
{
var (type, alg, curve) = Fido2Tests._validCOSEParameters[0];
X509Certificate2 root, attestnCert;
DateTimeOffset notBefore = DateTimeOffset.UtcNow.AddDays(-7);
DateTimeOffset notAfter = notBefore.AddDays(2);
var attDN = new X500DistinguishedName("CN=Testing, OU=Authenticator Attestation, O=FIDO2-NET-LIB, C=US");
using (var ecdsaRoot = ECDsa.Create())
{
var rootRequest = new CertificateRequest(rootDN, ecdsaRoot, HashAlgorithmName.SHA256);
rootRequest.CertificateExtensions.Add(caExt);
ECCurve eCCurve = ECCurve.NamedCurves.nistP256;
using (root = rootRequest.CreateSelfSigned(
notBefore,
notAfter))
using (var ecdsaAtt = ECDsa.Create(eCCurve))
{
var attRequest = new CertificateRequest(attDN, ecdsaAtt, HashAlgorithmName.SHA256);
attRequest.CertificateExtensions.Add(notCAExt);
attRequest.CertificateExtensions.Add(idFidoGenCeAaguidExt);
var serial = new byte[12];
RandomNumberGenerator.Fill(serial);
using (X509Certificate2 publicOnly = attRequest.Create(
root,
notBefore,
notAfter,
serial))
{
attestnCert = publicOnly.CopyWithPrivateKey(ecdsaAtt);
}
var X5c = new CborArray { attestnCert.RawData, root.RawData };
var signature = SignData(type, alg, curve, ecdsa: ecdsaAtt);
_attestationObject.Add("attStmt", new CborMap {
{ "alg", alg },
{ "sig", signature },
{ "x5c", X5c }
});
var ex = Assert.ThrowsAsync<Fido2VerificationException>(() => MakeAttestationResponse());
Assert.Equal("Packed signing certificate expired or not yet valid", ex.Result.Message);
}
}
}
[Fact]
public void TestFullX5cCertNotYetValid()
{
var (type, alg, curve) = Fido2Tests._validCOSEParameters[0];
X509Certificate2 root, attestnCert;
DateTimeOffset notBefore = DateTimeOffset.UtcNow.AddDays(1);
DateTimeOffset notAfter = notBefore.AddDays(7);
var attDN = new X500DistinguishedName("CN=Testing, OU=Authenticator Attestation, O=FIDO2-NET-LIB, C=US");
using (var ecdsaRoot = ECDsa.Create())
{
var rootRequest = new CertificateRequest(rootDN, ecdsaRoot, HashAlgorithmName.SHA256);
rootRequest.CertificateExtensions.Add(caExt);
ECCurve eCCurve = ECCurve.NamedCurves.nistP256;
using (root = rootRequest.CreateSelfSigned(
notBefore,
notAfter))
using (var ecdsaAtt = ECDsa.Create(eCCurve))
{
var attRequest = new CertificateRequest(attDN, ecdsaAtt, HashAlgorithmName.SHA256);
attRequest.CertificateExtensions.Add(notCAExt);
attRequest.CertificateExtensions.Add(idFidoGenCeAaguidExt);
var serial = new byte[12];
RandomNumberGenerator.Fill(serial);
using (X509Certificate2 publicOnly = attRequest.Create(
root,
notBefore,
notAfter,
serial))
{
attestnCert = publicOnly.CopyWithPrivateKey(ecdsaAtt);
}
var X5c = new CborArray {
attestnCert.RawData,
root.RawData
};
var signature = SignData(type, alg, curve, ecdsa: ecdsaAtt);
_attestationObject.Add("attStmt", new CborMap {
{ "alg", alg },
{ "sig", signature },
{ "x5c", X5c }
});
var ex = Assert.ThrowsAsync<Fido2VerificationException>(() => MakeAttestationResponse());
Assert.Equal("Packed signing certificate expired or not yet valid", ex.Result.Message);
}
}
}
[Fact]
public void TestFullInvalidAlg()
{
var (type, alg, curve) = Fido2Tests._validCOSEParameters[0];
X509Certificate2 root, attestnCert;
DateTimeOffset notBefore = DateTimeOffset.UtcNow;
DateTimeOffset notAfter = notBefore.AddDays(2);
var attDN = new X500DistinguishedName("CN=Testing, OU=Authenticator Attestation, O=FIDO2-NET-LIB, C=US");
using (var ecdsaRoot = ECDsa.Create())
{
var rootRequest = new CertificateRequest(rootDN, ecdsaRoot, HashAlgorithmName.SHA256);
rootRequest.CertificateExtensions.Add(caExt);
ECCurve eCCurve = ECCurve.NamedCurves.nistP256;
using (root = rootRequest.CreateSelfSigned(
notBefore,
notAfter))
using (var ecdsaAtt = ECDsa.Create(eCCurve))
{
var attRequest = new CertificateRequest(attDN, ecdsaAtt, HashAlgorithmName.SHA256);
attRequest.CertificateExtensions.Add(notCAExt);
attRequest.CertificateExtensions.Add(idFidoGenCeAaguidExt);
var serial = new byte[12];
RandomNumberGenerator.Fill(serial);
using (X509Certificate2 publicOnly = attRequest.Create(
root,
notBefore,
notAfter,
serial))
{
attestnCert = publicOnly.CopyWithPrivateKey(ecdsaAtt);
}
var X5c = new CborArray { attestnCert.RawData, root.RawData };
var signature = SignData(type, alg, curve, ecdsa: ecdsaAtt);
_attestationObject.Add("attStmt", new CborMap {
{ "alg", 42 },
{ "sig", signature },
{ "x5c", X5c }
});
var ex = Assert.ThrowsAsync<InvalidOperationException>(() => MakeAttestationResponse());
Assert.Equal("Missing or unknown alg 42", ex.Result.Message);
}
}
}
[Fact]
public void TestFullInvalidSig()
{
var (type, alg, curve) = Fido2Tests._validCOSEParameters[0];
X509Certificate2 root, attestnCert;
DateTimeOffset notBefore = DateTimeOffset.UtcNow;
DateTimeOffset notAfter = notBefore.AddDays(2);
var attDN = new X500DistinguishedName("CN=Testing, OU=Authenticator Attestation, O=FIDO2-NET-LIB, C=US");
using (var ecdsaRoot = ECDsa.Create())
{
var rootRequest = new CertificateRequest(rootDN, ecdsaRoot, HashAlgorithmName.SHA256);
rootRequest.CertificateExtensions.Add(caExt);
ECCurve eCCurve = ECCurve.NamedCurves.nistP256;
using (root = rootRequest.CreateSelfSigned(
notBefore,
notAfter))
using (var ecdsaAtt = ECDsa.Create(eCCurve))
{
var attRequest = new CertificateRequest(attDN, ecdsaAtt, HashAlgorithmName.SHA256);
attRequest.CertificateExtensions.Add(notCAExt);
attRequest.CertificateExtensions.Add(idFidoGenCeAaguidExt);
var serial = new byte[12];
RandomNumberGenerator.Fill(serial);
using (X509Certificate2 publicOnly = attRequest.Create(
root,
notBefore,
notAfter,
serial))
{
attestnCert = publicOnly.CopyWithPrivateKey(ecdsaAtt);
}
var X5c = new CborArray {
attestnCert.RawData,
root.RawData
};
var signature = SignData(type, alg, curve, ecdsa: ecdsaAtt);
_attestationObject.Add("attStmt", new CborMap {
{ "alg", alg },
{ "sig", new byte[] { 0x30, 0x45, 0x02, 0x20, 0x11, 0x9b, 0x6f, 0xa8, 0x1c, 0xe1, 0x75, 0x9e, 0xbe, 0xf1, 0x52, 0xa6, 0x99, 0x40, 0x5e, 0xd6, 0x6a, 0xcc, 0x01, 0x33, 0x65, 0x18, 0x05, 0x00, 0x96, 0x28, 0x29, 0xbe, 0x85, 0x57, 0xb7, 0x1d, 0x02, 0x21, 0x00, 0x94, 0x50, 0x1d, 0xf1, 0x90, 0x03, 0xa4, 0x4d, 0xa4, 0xdf, 0x9f, 0xbb, 0xb5, 0xe4, 0xce, 0x91, 0x6b, 0xc3, 0x90, 0xe8, 0x38, 0x99, 0x66, 0x4f, 0xa5, 0xc4, 0x0c, 0xf3, 0xed, 0xe3, 0xda, 0x83 } },
{ "x5c", X5c }
});
var ex = Assert.ThrowsAsync<Fido2VerificationException>(() => MakeAttestationResponse());
Assert.Equal("Invalid full packed signature", ex.Result.Message);
}
}
}
[Fact]
public void TestFullAttCertNotV3()
{
var (type, alg, curve) = Fido2Tests._validCOSEParameters[0];
X509Certificate2 root, attestnCert;
DateTimeOffset notBefore = DateTimeOffset.UtcNow;
DateTimeOffset notAfter = notBefore.AddDays(2);
var attDN = new X500DistinguishedName("CN=Testing, OU=Authenticator Attestation, O=FIDO2-NET-LIB, C=US");
using (var ecdsaRoot = ECDsa.Create())
{
var rootRequest = new CertificateRequest(rootDN, ecdsaRoot, HashAlgorithmName.SHA256);
rootRequest.CertificateExtensions.Add(caExt);
ECCurve eCCurve = ECCurve.NamedCurves.nistP256;
using (root = rootRequest.CreateSelfSigned(
notBefore,
notAfter))
using (var ecdsaAtt = ECDsa.Create(eCCurve))
{
var attRequest = new CertificateRequest(attDN, ecdsaAtt, HashAlgorithmName.SHA256);
attRequest.CertificateExtensions.Add(notCAExt);
attRequest.CertificateExtensions.Add(idFidoGenCeAaguidExt);
var serial = new byte[12];
RandomNumberGenerator.Fill(serial);
using (X509Certificate2 publicOnly = attRequest.Create(
root,
notBefore,
notAfter,
serial))
{
attestnCert = publicOnly.CopyWithPrivateKey(ecdsaAtt);
}
var rawAttestnCert = attestnCert.RawData;
rawAttestnCert[12] = 0x41;
var X5c = new CborArray { rawAttestnCert, root.RawData };
var signature = SignData(type, alg, curve, ecdsa: ecdsaAtt);
_attestationObject.Add("attStmt", new CborMap {
{ "alg", alg },
{ "sig", signature},
{ "x5c", X5c }
});
if (OperatingSystem.IsMacOS())
{
// Actually throws Interop.AppleCrypto.AppleCommonCryptoCryptographicException
var ex = Assert.ThrowsAnyAsync<CryptographicException>(() => MakeAttestationResponse());
Assert.Equal("Unknown format in import.", ex.Result.Message);
}
else
{
var ex = Assert.ThrowsAsync<Fido2VerificationException>(() => MakeAttestationResponse());
Assert.Equal("Packed x5c attestation certificate not V3", ex.Result.Message);
}
}
}
}
[Fact]
public void TestFullAttCertSubject()
{
var (type, alg, curve) = Fido2Tests._validCOSEParameters[0];
X509Certificate2 root, attestnCert;
DateTimeOffset notBefore = DateTimeOffset.UtcNow;
DateTimeOffset notAfter = notBefore.AddDays(2);
var attDN = new X500DistinguishedName("CN=Testing, OU=Not Authenticator Attestation, O=FIDO2-NET-LIB, C=US");
using (var ecdsaRoot = ECDsa.Create())
{
var rootRequest = new CertificateRequest(rootDN, ecdsaRoot, HashAlgorithmName.SHA256);
rootRequest.CertificateExtensions.Add(caExt);
ECCurve eCCurve = ECCurve.NamedCurves.nistP256;
using (root = rootRequest.CreateSelfSigned(
notBefore,
notAfter))
using (var ecdsaAtt = ECDsa.Create(eCCurve))
{
var attRequest = new CertificateRequest(attDN, ecdsaAtt, HashAlgorithmName.SHA256);
attRequest.CertificateExtensions.Add(notCAExt);
attRequest.CertificateExtensions.Add(idFidoGenCeAaguidExt);
var serial = new byte[12];
RandomNumberGenerator.Fill(serial);
using (X509Certificate2 publicOnly = attRequest.Create(
root,
notBefore,
notAfter,
serial))
{
attestnCert = publicOnly.CopyWithPrivateKey(ecdsaAtt);
}
var X5c = new CborArray {
attestnCert.RawData,
root.RawData
};
var signature = SignData(type, alg, curve, ecdsa: ecdsaAtt);
_attestationObject.Add("attStmt", new CborMap {
{ "alg", alg },
{ "sig", signature },
{ "x5c", X5c }
});
var ex = Assert.ThrowsAsync<Fido2VerificationException>(() => MakeAttestationResponse());
Assert.Equal("Invalid attestation cert subject", ex.Result.Message);
}
}
}
[Fact]
public async void TestAttCertSubjectCommaAsync()
{
var (type, alg, curve) = Fido2Tests._validCOSEParameters[0];
X509Certificate2 root, attestnCert;
DateTimeOffset notBefore = DateTimeOffset.UtcNow;
DateTimeOffset notAfter = notBefore.AddDays(2);
var attDN = new X500DistinguishedName("CN=Testing, OU=Authenticator Attestation, O=\"FIDO2-NET-LIB, Inc.\", C=US");
using (var ecdsaRoot = ECDsa.Create())
{
var rootRequest = new CertificateRequest(rootDN, ecdsaRoot, HashAlgorithmName.SHA256);
rootRequest.CertificateExtensions.Add(caExt);
ECCurve eCCurve = ECCurve.NamedCurves.nistP256;
using (root = rootRequest.CreateSelfSigned(
notBefore,
notAfter))
using (var ecdsaAtt = ECDsa.Create(eCCurve))
{
var attRequest = new CertificateRequest(attDN, ecdsaAtt, HashAlgorithmName.SHA256);
attRequest.CertificateExtensions.Add(notCAExt);
attRequest.CertificateExtensions.Add(idFidoGenCeAaguidExt);
var serial = new byte[12];
RandomNumberGenerator.Fill(serial);
using (X509Certificate2 publicOnly = attRequest.Create(
root,
notBefore,
notAfter,
serial))
{
attestnCert = publicOnly.CopyWithPrivateKey(ecdsaAtt);
}
var X5c = new CborArray {
attestnCert.RawData,
root.RawData
};
var signature = SignData(type, alg, curve, ecdsa: ecdsaAtt);
_attestationObject.Add("attStmt", new CborMap {
{ "alg", alg },
{ "sig", signature },
{ "x5c", X5c },
});
var res = await MakeAttestationResponse();
Assert.Equal(string.Empty, res.ErrorMessage);