public void Enumerate()
{
var map = new CoseHeaderMap();
SetValue(map, CoseHeaderLabel.Algorithm, (int)ECDsaAlgorithm.ES256, default(SetValueMethod));
SetEncodedValue(map, CoseHeaderLabel.CriticalHeaders, GetDummyCritHeaderValue(), default(SetValueMethod));
SetValue(map, CoseHeaderLabel.ContentType, ContentTypeDummyValue, default(SetValueMethod));
SetValue(map, CoseHeaderLabel.KeyIdentifier, s_sampleContent, default(SetValueMethod));
var writer = new CborWriter();
int currentHeader = KnownHeaderAlg;
foreach (KeyValuePair <CoseHeaderLabel, CoseHeaderValue> kvp in map)
{
CoseHeaderLabel label = kvp.Key;
CoseHeaderValue value = kvp.Value;
Assert.Equal(new CoseHeaderLabel(currentHeader), label);
ReadOnlyMemory <byte> expectedValue = currentHeader switch
{
KnownHeaderAlg => EncodeInt32((int)ECDsaAlgorithm.ES256, writer),
KnownHeaderCrit => GetDummyCritHeaderValue(),
KnownHeaderContentType => EncodeString(ContentTypeDummyValue, writer),
KnownHeaderKid => EncodeBytes(s_sampleContent, writer),
_ => throw new InvalidOperationException()
};
AssertExtensions.SequenceEqual(expectedValue.Span, value.EncodedValue.Span);
currentHeader++;
}
Assert.Equal(KnownHeaderKid + 1, currentHeader);
public void FromBytesThrowsBufferTooSmall(ContentTestCase @case)
{
byte[] content = GetDummyContent(@case);
CoseHeaderValue headerValue = CoseHeaderValue.FromBytes(content.AsSpan());
Memory <byte> buffer = new byte[content.Length - 1];
Assert.Throws <ArgumentException>("destination", () => headerValue.GetValueAsBytes(buffer.Span));
}
public void GetValueAsStringSucceeds(string value)
{
var writer = new CborWriter();
writer.WriteTextString(value);
CoseHeaderValue headerValue = CoseHeaderValue.FromEncodedValue(writer.Encode());
Assert.Equal(value, headerValue.GetValueAsString());
}
public void GetValueAsInt32Succeeds(int value)
{
var writer = new CborWriter();
writer.WriteInt32(value);
CoseHeaderValue headerValue = CoseHeaderValue.FromEncodedValue(writer.Encode());
Assert.Equal(value, headerValue.GetValueAsInt32());
}
public void FromStringSucceeds(string value)
{
var writer = new CborWriter();
writer.WriteTextString(value);
CoseHeaderValue headerValue = CoseHeaderValue.FromString(value);
AssertExtensions.SequenceEqual(writer.Encode(), headerValue.EncodedValue.Span);
Assert.Equal(value, headerValue.GetValueAsString());
}
public void FromInt32Succeeds(int value)
{
var writer = new CborWriter();
writer.WriteInt32(value);
CoseHeaderValue headerValue = CoseHeaderValue.FromInt32(value);
AssertExtensions.SequenceEqual(writer.Encode(), headerValue.EncodedValue.Span);
Assert.Equal(value, headerValue.GetValueAsInt32());
}
public void GetValueAsInt32Overflows(long value)
{
var writer = new CborWriter();
writer.WriteInt64(value);
CoseHeaderValue headerValue = CoseHeaderValue.FromEncodedValue(writer.Encode());
Exception ex = Assert.Throws <InvalidOperationException>(() => headerValue.GetValueAsInt32());
Assert.IsType <OverflowException>(ex.InnerException);
}
public void SignWithCborNegativeIntegerRepresentationAlgorithmHeaderValue(ulong value)
{
var writer = new CborWriter();
writer.WriteCborNegativeIntegerRepresentation(value);
ReadOnlySpan <byte> encodedValue = writer.Encode();
CoseHeaderMap protectedHeaders = new CoseHeaderMap();
protectedHeaders[CoseHeaderLabel.Algorithm] = CoseHeaderValue.FromEncodedValue(encodedValue);
Assert.Throws <CryptographicException>(() => Sign(s_sampleContent, DefaultKey, DefaultHash, protectedHeaders));
}
public void GetValueAsBytesSucceeds(ContentTestCase @case)
{
byte[] content = GetDummyContent(@case);
var writer = new CborWriter();
writer.WriteByteString(content);
CoseHeaderValue headerValue = CoseHeaderValue.FromEncodedValue(writer.Encode());
AssertExtensions.SequenceEqual(content, headerValue.GetValueAsBytes());
Span <byte> buffer = new byte[content.Length];
int length = headerValue.GetValueAsBytes(buffer);
Assert.Equal(content.Length, length);
AssertExtensions.SequenceEqual(content, buffer);
}
public void FromEncodedValue(byte[] encodedValue)
{
var headerValue = CoseHeaderValue.FromEncodedValue(encodedValue);
AssertExtensions.SequenceEqual(encodedValue, headerValue.EncodedValue.Span);
// make sure is readable.
var reader = new CborReader(headerValue.EncodedValue);
reader.SkipValue();
headerValue = CoseHeaderValue.FromEncodedValue(encodedValue.AsSpan());
AssertExtensions.SequenceEqual(encodedValue, headerValue.EncodedValue.Span);
// make sure is readable.
reader = new CborReader(headerValue.EncodedValue);
reader.SkipValue();
}
public void CoseHeaderValue_GetHashCode()
{
CoseHeaderValue value1 = default;
CoseHeaderValue value2 = new CoseHeaderValue();
int value1HashCode = value1.GetHashCode();
Assert.Equal(value1HashCode, value2.GetHashCode());
value1 = CoseHeaderValue.FromInt32(0);
value2 = CoseHeaderValue.FromInt32(0);
Assert.Equal(value1.GetHashCode(), value2.GetHashCode());
value1 = default;
Assert.NotEqual(value1.GetHashCode(), value2.GetHashCode());
value1 = new CoseHeaderValue();
Assert.NotEqual(value1.GetHashCode(), value2.GetHashCode());
}
public void GetValueAsBytesBeingIndefiniteLengthSucceeds(ContentTestCase @case)
{
Verify(0);
Verify(1);
Verify(10);
void Verify(int repetitions)
{
byte[] content = GetDummyContent(@case);
var writer = new CborWriter();
writer.WriteStartIndefiniteLengthByteString();
for (int i = 0; i < repetitions; i++)
{
writer.WriteByteString(content);
}
writer.WriteEndIndefiniteLengthByteString();
int expectedLength = content.Length * repetitions;
CoseHeaderValue headerValue = CoseHeaderValue.FromEncodedValue(writer.Encode());
ReadOnlySpan <byte> result = headerValue.GetValueAsBytes();
Assert.Equal(expectedLength, result.Length);
for (int i = 0; i < expectedLength; i += content.Length)
{
AssertExtensions.SequenceEqual(content, result.Slice(i, content.Length));
}
Span <byte> buffer = new byte[expectedLength];
int length = headerValue.GetValueAsBytes(buffer);
Assert.Equal(expectedLength, length);
for (int i = 0; i < expectedLength; i += content.Length)
{
AssertExtensions.SequenceEqual(content, buffer.Slice(i, content.Length));
}
}
}
public void SetValue_InvalidCoseHeaderValue()
{
CoseHeaderLabel[] labelsToTest =
{
new CoseHeaderLabel("foo"),
new CoseHeaderLabel(42),
CoseHeaderLabel.Algorithm,
CoseHeaderLabel.ContentType,
CoseHeaderLabel.CriticalHeaders,
CoseHeaderLabel.KeyIdentifier
};
foreach (CoseHeaderLabel label in labelsToTest)
{
var map = new CoseHeaderMap();
Assert.Throws <ArgumentException>("value", () => map.Add(label, new CoseHeaderValue()));
Assert.Throws <ArgumentException>("value", () => map[label] = new CoseHeaderValue());
Assert.Throws <ArgumentException>("value", () => map.Add(label, default(CoseHeaderValue)));
Assert.Throws <ArgumentException>("value", () => map[label] = default(CoseHeaderValue));
}
}
public void GetValueAsThrows(byte[] encodedValue, GetValueAs method)
{
CoseHeaderValue headerValue = CoseHeaderValue.FromEncodedValue(encodedValue);
if (method == GetValueAs.Int32)
{
Assert.Throws <InvalidOperationException>(() => headerValue.GetValueAsInt32());
}
else if (method == GetValueAs.String)
{
Assert.Throws <InvalidOperationException>(() => headerValue.GetValueAsString());
}
else if (method == GetValueAs.Bytes)
{
Assert.Throws <InvalidOperationException>(() => headerValue.GetValueAsBytes());
}
else
{
Assert.Equal(GetValueAs.BytesSpan, method);
Memory <byte> buffer = new byte[1024]; // big enough to not throw ArgumentException.
Assert.Throws <InvalidOperationException>(() => headerValue.GetValueAsBytes(buffer.Span));
}
}
public void SignWithAllCborTypesAsHeaderValue(bool useProtectedMap, byte[] encodedValue)
{
var myLabel = new CoseHeaderLabel(42);
CoseHeaderMap protectedHeaders = GetHeaderMapWithAlgorithm(DefaultAlgorithm);
CoseHeaderMap unprotectedHeaders = GetEmptyHeaderMap();
(useProtectedMap ? protectedHeaders : unprotectedHeaders)[myLabel] = CoseHeaderValue.FromEncodedValue(encodedValue);
List <(CoseHeaderLabel, ReadOnlyMemory <byte>)> expectedProtectedHeaders = GetExpectedProtectedHeaders(DefaultAlgorithm);
List <(CoseHeaderLabel, ReadOnlyMemory <byte>)> expectedUnprotectedHeaders = GetEmptyExpectedHeaders();
(useProtectedMap ? expectedProtectedHeaders : expectedUnprotectedHeaders).Add((myLabel, encodedValue));
ReadOnlySpan <byte> encodedMessage = Sign(s_sampleContent, DefaultKey, DefaultHash, protectedHeaders, unprotectedHeaders);
AssertCoseSignMessage(encodedMessage, s_sampleContent, DefaultKey, DefaultAlgorithm, expectedProtectedHeaders, expectedUnprotectedHeaders);
// Verify it is transported correctly.
CoseMessage message = Decode(encodedMessage);
ReadOnlyMemory <byte> roundtrippedValue = GetSigningHeaderMap(message, useProtectedMap)[myLabel].EncodedValue;
AssertExtensions.SequenceEqual(encodedValue, roundtrippedValue.Span);
}
public void GetValueAsStringBeingIndefiniteLengthSucceeds(string value)
{
Verify(0);
Verify(1);
Verify(10);
void Verify(int repetitions)
{
var writer = new CborWriter();
writer.WriteStartIndefiniteLengthTextString();
for (int i = 0; i < repetitions; i++)
{
writer.WriteTextString(value);
}
writer.WriteEndIndefiniteLengthTextString();
CoseHeaderValue headerValue = CoseHeaderValue.FromEncodedValue(writer.Encode());
string expectedValue = string.Join("", Enumerable.Repeat(value, repetitions));
Assert.Equal(expectedValue, headerValue.GetValueAsString());
}
}
public void MultiSign_SignWithAllCborTypesAsHeaderValue_BodyHeaders(bool useProtectedMap, byte[] encodedValue)
{
if (MessageKind != CoseMessageKind.MultiSign)
{
return;
}
var myLabel = new CoseHeaderLabel(42);
CoseHeaderMap signProtectedHeaders = GetHeaderMapWithAlgorithm(DefaultAlgorithm);
CoseHeaderMap signUnprotectedHeaders = GetEmptyHeaderMap();
CoseHeaderMap bodyProtectedHeaders = GetEmptyHeaderMap();
CoseHeaderMap bodyUnprotectedHeaders = GetEmptyHeaderMap();
(useProtectedMap ? bodyProtectedHeaders : bodyUnprotectedHeaders)[myLabel] = CoseHeaderValue.FromEncodedValue(encodedValue);
List <(CoseHeaderLabel, ReadOnlyMemory <byte>)> expectedSignProtectedHeaders = GetExpectedProtectedHeaders(DefaultAlgorithm);
List <(CoseHeaderLabel, ReadOnlyMemory <byte>)> expectedSignUnprotectedHeaders = GetEmptyExpectedHeaders();
List <(CoseHeaderLabel, ReadOnlyMemory <byte>)> expectedProtectedHeaders = GetEmptyExpectedHeaders();
List <(CoseHeaderLabel, ReadOnlyMemory <byte>)> expectedUnprotectedHeaders = GetEmptyExpectedHeaders();
(useProtectedMap ? expectedProtectedHeaders : expectedUnprotectedHeaders).Add((myLabel, encodedValue));
CoseSigner signer = GetCoseSigner(DefaultKey, DefaultHash, signProtectedHeaders, signUnprotectedHeaders);
ReadOnlySpan <byte> encodedMessage = Sign(s_sampleContent, signer, bodyProtectedHeaders, bodyUnprotectedHeaders);
AssertCoseSignMessage(
encodedMessage,
s_sampleContent,
DefaultKey,
DefaultAlgorithm,
expectedSignProtectedHeaders,
expectedSignUnprotectedHeaders,
null,
expectedProtectedHeaders,
expectedUnprotectedHeaders);
// Verify it is transported correctly.
CoseMessage message = Decode(encodedMessage);
ReadOnlyMemory <byte> roundtrippedValue = (useProtectedMap ? message.ProtectedHeaders : message.UnprotectedHeaders)[myLabel].EncodedValue;
AssertExtensions.SequenceEqual(encodedValue, roundtrippedValue.Span);
}
