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 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 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);
}