private static byte[] GetKeyAsDER(RSAParameters key)
{
var asn1Key = new RSAPrivateKey(key);
var serializer = new Asn1Serializer();
var keyBytes = serializer.Serialize(asn1Key).ToArray();
return keyBytes;
}
public void Should_serialize_a_certificate_signing_request()
{
// Arrange
var keyManager = new FileKeyStore(Environment.CurrentDirectory);
var rsa = keyManager.GetOrCreateKey("test.startliste.info");
var key = rsa.ExportParameters(true);
var data = new CertificateRequestData("test.startliste.info", key)
{
C = "DE",
S = "NRW",
L = "Werther",
O = "Aero Club Bünde",
OU = ""
};
var serializer = new Asn1Serializer();
var sut = new CertificateRequestAsn1DEREncoder(serializer);
// Act
var csr = sut.Encode(data);
var der = sut.EncodeAsDER(data);
var base64 = sut.EncodeAsBase64(data);
var bytes = serializer.Serialize(csr).ToArray();
// Assert
File.WriteAllBytes(@"request.der", der);
File.WriteAllText(@"request.txt", base64);
bytes.Should().NotBeNull();
// openssl req -in r:\request.txt -noout -text
}
public void Serializing_and_deserializing_a_private_key_should_result_in_equal_keys()
{
// Arrange
var rsa = new RSACryptoServiceProvider(2048);
var rsaParameters = rsa.ExportParameters(true);
var asn1Parser = new Asn1Parser();
var rsaParser = new RSAPrivateKeyParser(asn1Parser);
var asn1Serializer = new Asn1Serializer();
var asn1Rsa = new RSAPrivateKey(rsaParameters);
// Act
var serializedPEM = asn1Serializer.Serialize(asn1Rsa).ToArray().EncodeAsPEM(PEMExtensions.RSAPrivateKey);
var parsedRsaKey = rsaParser.ParsePem(new MemoryStream(Encoding.ASCII.GetBytes(serializedPEM)));
//TODO this test sometimes has a missing leading '0' byte.
// Assert
parsedRsaKey.Key.Exponent.Should().Equal(rsaParameters.Exponent);
parsedRsaKey.Key.Modulus.Should().Equal(rsaParameters.Modulus);
parsedRsaKey.Key.P.Should().Equal(rsaParameters.P);
parsedRsaKey.Key.D.Should().Equal(rsaParameters.D);
parsedRsaKey.Key.DP.Should().Equal(rsaParameters.DP);
parsedRsaKey.Key.Q.Should().Equal(rsaParameters.Q);
parsedRsaKey.Key.DQ.Should().Equal(rsaParameters.DQ);
parsedRsaKey.Key.InverseQ.Should().Equal(rsaParameters.InverseQ);
}
public void Should_serialize_a_sequence()
{
// Arrange
var sequence = new Sequence(new ObjectIdentifier("2.5.4.8"), new UTF8String("NRW"));
var sut = new Asn1Serializer();
// Act
var bytes = sut.Serialize(sequence);
// Assert
bytes.Should().Equal(0x30, 0x0A, 0x06, 0x03, 0x55, 0x04, 0x08, 0x0C, 0x03, 0x4E, 0x52, 0x57);
}
public void Should_serialize_integer_from_int()
{
// Arrange
var ints = new int[] {0, 127, 128, 256*256};
var asn1ints = ints.Select(i => new Integer(i));
var sut = new Asn1Serializer();
// Act
var bytes = asn1ints.Select(i => sut.Serialize(i)).ToArray();
// Assert
bytes[0].Should().Equal(0x02, 1, 0);
bytes[1].Should().Equal(0x02, 1, 127);
bytes[2].Should().Equal(0x02, 2, 0, 128); // da das 1. Bit zur Vorzeichenerkennung genutzt wird, wird bei >= 128 ein 0-Byte voran gestellt
bytes[3].Should().Equal(0x02, 3, 1, 0, 0);
}
public void Should_serialize_integer_from_bytes()
{
// Arrange
var byteArrays = new byte[][]
{
new byte[] {0},
new byte[] {127},
new byte[] {0, 127},
new byte[] {128},
new byte[] {1, 0, 0},
new byte[0],
new byte[] {0, 165, 163, 214, 2, 169, 62}
}.Select(data => new Integer(data));
var expectedSerializedValues = new[]
{
new byte[] {2, 1, 0},
new byte[] {2, 1, 127},
new byte[] {2, 2, 0, 127},
new byte[] {2, 2, 0, 128}, // da das 1. Bit zur Vorzeichenerkennung genutzt wird, wird bei >= 128 ein 0-Byte voran gestellt
new byte[] {2, 3, 1, 0, 0},
new byte[] {2, 0},
new byte[] {2, 7, 0, 165, 163, 214, 2, 169, 62}
};
var sut = new Asn1Serializer();
// Act
var result = byteArrays.Select(i => sut.Serialize(i)).ToArray();
// Assert
result.Length.Should().Be(expectedSerializedValues.Length);
for (int i = 0; i < expectedSerializedValues.Length; i++)
{
result[i].Should().Equal(expectedSerializedValues[i]);
}
}
