internal static void Decode <T>(AsnReader reader, Asn1Tag expectedTag, out T decoded)
where T : KrbDiffieHellmanValidationParameters, new()
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
decoded = new T();
AsnReader sequenceReader = reader.ReadSequence(expectedTag);
if (sequenceReader.TryReadPrimitiveBitStringValue(out _, out ReadOnlyMemory <byte> tmpSeed))
{
decoded.Seed = tmpSeed;
}
else
{
decoded.Seed = sequenceReader.ReadBitString(out _);
}
decoded.PGenOutput = sequenceReader.ReadInteger();
sequenceReader.ThrowIfNotEmpty();
}
public static void GetDiminutiveBigInteger(PublicEncodingRules ruleSet)
{
// GetBigInteger with the last byte removed.
// Since it is no longer an ArrayPool alignment size the fill code gets tested on netstandard.
byte[] inputData = (
"0282010000A46861FA9D5DB763633BF5A64EF6E7C2C2367F48D2D46643A22DFC" +
"FCCB24E58A14D0F06BDC956437F2A56BA4BEF70BA361BF12964A0D665AFD84B0" +
"F7494C8FA4ABC5FCA2E017C06178AEF2CDAD1B5F18E997A14B965C074E8F5649" +
"70607276B00583932240FE6E2DD013026F9AE13D7C91CC07C4E1E8E87737DC06" +
"EF2B575B89D62EFE46859F8255A123692A706C68122D4DAFE11CB205A7B3DE06" +
"E553F7B95F978EF8601A8DF819BF32040BDF92A0DE0DF269B4514282E17AC699" +
"34E8440A48AB9D1F5DF89A502CEF6DFDBE790045BD45E0C94E5CA8ADD76A013E" +
"9C978440FC8A9E2A9A4940B2460819C3E302AA9C9F355AD754C86D3ED77DDAA3" +
"DA13810B").HexToByteArray();
BigInteger expected = BigInteger.Parse(
"2075455505718444046766086325128514549301113944667492053189486607" +
"5638152321436011512404808361119326026027238444019992518081753153" +
"5965931647037093368608713442955529617501657176146245891571745113" +
"4028700771890451167051818999837042261788828826028681595867897235" +
"7967091503500375497498573022675671178275171110498592645868107163" +
"8525996766798322809764200941677343791419428587801897366593842552" +
"7272226864578661449281241619675217353931828233756506947863330597" +
"8338073826285687331647183058971791153730741973483420110408271570" +
"1367336140572971505716740825623220507359429297584634909330541150" +
"79473593821332264673455059897928082590541") >> 8;
AsnReader reader = new AsnReader(inputData, (AsnEncodingRules)ruleSet);
Assert.Equal(expected, reader.ReadInteger());
}
public static void GetNegativeBigInteger(PublicEncodingRules ruleSet)
{
// This uses a length that doesn't line up with the array pool size so
// the fill code gets tested on netstandard.
// It's the same data as above, minus the padding and lead byte (and the
// next byte changed from 0x68 to 0x88)
byte[] inputData = (
"0281FF8861FA9D5DB763633BF5A64EF6E7C2C2367F48D2D46643A22DFC" +
"FCCB24E58A14D0F06BDC956437F2A56BA4BEF70BA361BF12964A0D665AFD84B0" +
"F7494C8FA4ABC5FCA2E017C06178AEF2CDAD1B5F18E997A14B965C074E8F5649" +
"70607276B00583932240FE6E2DD013026F9AE13D7C91CC07C4E1E8E87737DC06" +
"EF2B575B89D62EFE46859F8255A123692A706C68122D4DAFE11CB205A7B3DE06" +
"E553F7B95F978EF8601A8DF819BF32040BDF92A0DE0DF269B4514282E17AC699" +
"34E8440A48AB9D1F5DF89A502CEF6DFDBE790045BD45E0C94E5CA8ADD76A013E" +
"9C978440FC8A9E2A9A4940B2460819C3E302AA9C9F355AD754C86D3ED77DDAA3" +
"DA13810B4D").HexToByteArray();
BigInteger expected = BigInteger.Parse(
"-" +
"5898547409447487884446992857601985651316300515844052200158198046" +
"7814538020408452501006415149581619776188797413593169277984980446" +
"1302361382932378450492052337986628823880000831383555853860116718" +
"5361729331647715885538858385106930514758305144777880150203212976" +
"6715081632226412951106013360243549075631850526067219857352295397" +
"2308328327377769665309386917336850273904442596855844458638806936" +
"6169824439111394938336579524651037239551388910737675470211780509" +
"8035477769907389338548451561341965157059382875181284370047601682" +
"6924486017215979427815833587119797658480104671279234402026468966" +
"86109928634475300812601680679147599027");
AsnReader reader = new AsnReader(inputData, (AsnEncodingRules)ruleSet);
Assert.Equal(expected, reader.ReadInteger());
}
public SearchRequest TryDecode(AsnReader reader, byte[] input)
{
SearchRequest searchRequest = new SearchRequest
{
RawPacket = input,
};
Asn1Tag bindRequestApplication = new Asn1Tag(TagClass.Application, 3);
AsnReader subReader = reader.ReadSequence(bindRequestApplication);
searchRequest.BaseObject = System.Text.Encoding.ASCII.GetString(subReader.ReadOctetString());
SearchRequest.ScopeEnum scope = subReader.ReadEnumeratedValue <SearchRequest.ScopeEnum>();
SearchRequest.DerefAliasesEnum deref = subReader.ReadEnumeratedValue <SearchRequest.DerefAliasesEnum>();
BigInteger sizeLimit = subReader.ReadInteger();
BigInteger timeLimit = subReader.ReadInteger();
bool typesOnly = subReader.ReadBoolean();
searchRequest.Filter = DecodeSearchFilter(subReader);
return(searchRequest);
}
public LdapMessage TryParsePacket(byte[] input)
{
AsnReader reader = new AsnReader(input, AsnEncodingRules.BER);
AsnReader sequenceReader = reader.ReadSequence();
BigInteger messageId = sequenceReader.ReadInteger();
TagClass tagClass = sequenceReader.PeekTag().TagClass;
int tagValue = sequenceReader.PeekTag().TagValue;
if (tagClass != TagClass.Application)
{
throw new ArgumentException("Input type is expected to be " + TagClass.Application + " but was " + tagClass);
}
IProtocolOp message = DecodeApplicationData(tagValue, sequenceReader, input);
return(new LdapMessage(messageId, message));
}
public BindRequest TryDecode(AsnReader reader, byte[] input)
{
Asn1Tag bindRequestApplication = new Asn1Tag(TagClass.Application, 0);
AsnReader subReader = reader.ReadSequence(bindRequestApplication);
BigInteger version = subReader.ReadInteger();
string nameString = System.Text.Encoding.ASCII.GetString(subReader.ReadOctetString());
Asn1Tag authContext = new Asn1Tag(TagClass.ContextSpecific, 0);
string authString = System.Text.Encoding.ASCII.GetString(subReader.ReadOctetString(authContext));
subReader.ThrowIfNotEmpty();
reader.ThrowIfNotEmpty();
BindRequest bindRequest = new BindRequest(version, nameString, authString);
return(bindRequest);
}
/// <summary>
/// Decode CRL Number.
/// </summary>
private void Decode(byte[] data)
{
if (base.Oid.Value == CrlNumberOid)
{
try
{
AsnReader dataReader = new AsnReader(data, AsnEncodingRules.DER);
CrlNumber = dataReader.ReadInteger();
dataReader.ThrowIfNotEmpty();
}
catch (AsnContentException ace)
{
throw new CryptographicException("Failed to decode the CRL Number extension.", ace);
}
}
else
{
throw new CryptographicException("Invalid CrlNumberOid.");
}
}
internal static void Decode(AsnReader reader, Asn1Tag expectedTag, out CertificationRequestInfoAsn decoded)
{
if (reader == null)
{
throw new ArgumentNullException(nameof(reader));
}
decoded = default;
AsnReader sequenceReader = reader.ReadSequence(expectedTag);
AsnReader collectionReader;
decoded.Version = sequenceReader.ReadInteger();
if (!sequenceReader.PeekTag().HasSameClassAndValue(new Asn1Tag((UniversalTagNumber)16)))
{
throw new CryptographicException();
}
decoded.Subject = sequenceReader.ReadEncodedValue();
System.Security.Cryptography.Asn1.SubjectPublicKeyInfoAsn.Decode(sequenceReader, out decoded.SubjectPublicKeyInfo);
// Decode SEQUENCE OF for Attributes
{
collectionReader = sequenceReader.ReadSetOf(new Asn1Tag(TagClass.ContextSpecific, 0));
var tmpList = new List <System.Security.Cryptography.Asn1.AttributeAsn>();
System.Security.Cryptography.Asn1.AttributeAsn tmpItem;
while (collectionReader.HasData)
{
System.Security.Cryptography.Asn1.AttributeAsn.Decode(collectionReader, out tmpItem);
tmpList.Add(tmpItem);
}
decoded.Attributes = tmpList.ToArray();
}
sequenceReader.ThrowIfNotEmpty();
}
