public BcpgOutputStream(Stream outStr, PacketTag tag, byte[] buffer)
{
//IL_000e: Unknown result type (might be due to invalid IL or missing references)
//IL_0064: Unknown result type (might be due to invalid IL or missing references)
if (outStr == null)
{
throw new ArgumentNullException("outStr");
}
this.outStr = outStr;
WriteHeader(tag, oldPackets: false, partial: true, 0L);
partialBuffer = buffer;
uint num = (uint)partialBuffer.Length;
partialPower = 0;
while (num != 1)
{
num >>= 1;
partialPower++;
}
if (partialPower > 30)
{
throw new IOException("Buffer cannot be greater than 2^30 in length.");
}
partialBufferLength = 1 << partialPower;
partialOffset = 0;
}
internal ExperimentalPacket(
PacketTag tag,
BcpgInputStream bcpgIn)
{
_tag = tag;
_contents = bcpgIn.ReadAll();
}
private void WriteHeader(
PacketTag tag,
bool oldPackets,
bool partial,
long bodyLen)
{
int hdr = 0x80;
if (partialBuffer != null)
{
PartialFlush(true);
partialBuffer = null;
}
if (oldPackets)
{
hdr |= ((int)tag) << 2;
if (partial)
{
this.WriteByte((byte)(hdr | 0x03));
}
else
{
if (bodyLen <= 0xff)
{
this.WriteByte((byte)hdr);
this.WriteByte((byte)bodyLen);
}
else if (bodyLen <= 0xffff)
{
this.WriteByte((byte)(hdr | 0x01));
this.WriteByte((byte)(bodyLen >> 8));
this.WriteByte((byte)(bodyLen));
}
else
{
this.WriteByte((byte)(hdr | 0x02));
this.WriteByte((byte)(bodyLen >> 24));
this.WriteByte((byte)(bodyLen >> 16));
this.WriteByte((byte)(bodyLen >> 8));
this.WriteByte((byte)bodyLen);
}
}
}
else
{
hdr |= 0x40 | (int)tag;
this.WriteByte((byte)hdr);
if (partial)
{
partialOffset = 0;
}
else
{
this.WriteNewPacketLength(bodyLen);
}
}
}
/// <summary>Create a stream representing a general packet.</summary>
/// <param name="outStr">Output stream to write to.</param>
/// <param name="tag">Packet tag.</param>
/// <param name="length">Size of chunks making up the packet.</param>
/// <param name="oldFormat">If true, the header is written out in old format.</param>
public BcpgOutputStream(
Stream outStr,
PacketTag tag,
long length,
bool oldFormat)
{
if (outStr == null)
{
throw new ArgumentNullException("outStr");
}
this.outStr = outStr;
if (length > 0xFFFFFFFFL)
{
this.WriteHeader(tag, false, true, 0);
this.partialBufferLength = 1 << BufferSizePower;
this.partialBuffer = new byte[partialBufferLength];
this.partialPower = BufferSizePower;
this.partialOffset = 0;
}
else
{
this.WriteHeader(tag, oldFormat, false, length);
}
}
public PgpSecretKeyRing(IPacketReader packetReader)
{
this.keys = new List <PgpSecretKey>();
this.extraPubKeys = new List <PgpPublicKey>();
PacketTag initialTag = packetReader.NextPacketTag();
if (initialTag != PacketTag.SecretKey && initialTag != PacketTag.SecretSubkey)
{
throw new PgpUnexpectedPacketException();
}
SecretKeyPacket secret = (SecretKeyPacket)packetReader.ReadContainedPacket();
keys.Add(new PgpSecretKey(packetReader, secret, subKey: false));
// Read subkeys
while (packetReader.NextPacketTag() == PacketTag.SecretSubkey || packetReader.NextPacketTag() == PacketTag.PublicSubkey)
{
if (packetReader.NextPacketTag() == PacketTag.SecretSubkey)
{
SecretSubkeyPacket sub = (SecretSubkeyPacket)packetReader.ReadContainedPacket();
keys.Add(new PgpSecretKey(packetReader, sub, subKey: true));
}
else
{
PublicSubkeyPacket sub = (PublicSubkeyPacket)packetReader.ReadContainedPacket();
extraPubKeys.Add(new PgpPublicKey(packetReader, sub, subKey: true));
}
}
}
public PgpPublicKeyRing(
Stream inputStream)
{
this.keys = Platform.CreateArrayList();
BcpgInputStream bcpgInput = BcpgInputStream.Wrap(inputStream);
PacketTag initialTag = bcpgInput.NextPacketTag();
if (initialTag != PacketTag.PublicKey && initialTag != PacketTag.PublicSubkey)
{
throw new IOException("public key ring doesn't start with public key tag: "
+ "tag 0x" + ((int)initialTag).ToString("X"));
}
PublicKeyPacket pubPk = (PublicKeyPacket)bcpgInput.ReadPacket();;
TrustPacket trustPk = ReadOptionalTrustPacket(bcpgInput);
// direct signatures and revocations
IList keySigs = ReadSignaturesAndTrust(bcpgInput);
IList ids, idTrusts, idSigs;
ReadUserIDs(bcpgInput, out ids, out idTrusts, out idSigs);
keys.Add(new PgpPublicKey(pubPk, trustPk, keySigs, ids, idTrusts, idSigs));
// Read subkeys
while (bcpgInput.NextPacketTag() == PacketTag.PublicSubkey)
{
keys.Add(ReadSubkey(bcpgInput));
}
}
internal ExperimentalPacket(
PacketTag tag,
BcpgInputStream bcpgIn)
{
_tag = tag;
_contents = bcpgIn.ReadAll();
}
internal ExperimentalPacket(
PacketTag tag,
Stream bcpgIn)
{
this.tag = tag;
this.contents = bcpgIn.ReadAll();
}
/// <summary>Create a new style partial input stream buffered into chunks.</summary>
/// <param name="outStr">Output stream to write to.</param>
/// <param name="tag">Packet tag.</param>
/// <param name="buffer">Buffer to use for collecting chunks.</param>
public BcpgOutputStream(Stream outStr, PacketTag tag, byte[] buffer)
{
if (outStr == null)
{
throw new ArgumentNullException("outStr");
}
_outStr = outStr;
WriteHeader(tag, false, true, 0);
_partialBuffer = buffer;
var length = (uint)_partialBuffer.Length;
for (_partialPower = 0; length != 1; _partialPower++)
{
length >>= 1;
}
if (_partialPower > 30)
{
throw new IOException("Buffer cannot be greater than 2^30 in length.");
}
_partialBufferLength = 1 << _partialPower;
_partialOffset = 0;
}
/// <summary>Create a stream representing an old style partial object.</summary>
/// <param name="outStr">Output stream to write to.</param>
/// <param name="tag">The packet tag for the object.</param>
public BcpgOutputStream(Stream outStr, PacketTag tag)
{
if (outStr == null)
throw new ArgumentNullException("outStr");
_outStr = outStr;
this.WriteHeader(tag, true, true, 0);
}
internal void WritePacket(
PacketTag tag,
byte[] body,
bool oldFormat)
{
this.WriteHeader(tag, oldFormat, false, body.Length);
this.Write(body);
}
public BcpgOutputStream(Stream outStr, PacketTag tag)
{
if (outStr == null)
{
throw new ArgumentNullException("outStr");
}
this.outStr = outStr;
WriteHeader(tag, oldPackets: true, partial: true, 0L);
}
public BcpgOutputStream(Stream outStr, PacketTag tag, long length)
{
if (outStr == null)
{
throw new ArgumentNullException("outStr");
}
this.outStr = outStr;
WriteHeader(tag, oldPackets: false, partial: false, length);
}
/// <summary>Create a new style partial input stream buffered into chunks.</summary>
/// <param name="outStr">Output stream to write to.</param>
/// <param name="tag">Packet tag.</param>
/// <param name="length">Size of chunks making up the packet.</param>
public BcpgOutputStream(Stream outStr, PacketTag tag, long length)
{
if (outStr == null)
{
throw new ArgumentNullException("outStr");
}
_outStr = outStr;
this.WriteHeader(tag, false, false, length);
}
public BcpgOutputStream(Stream outStr, PacketTag tag, long length)
{
//IL_000e: Unknown result type (might be due to invalid IL or missing references)
if (outStr == null)
{
throw new ArgumentNullException("outStr");
}
this.outStr = outStr;
WriteHeader(tag, oldPackets: false, partial: false, length);
}
/// <summary>Create a new style partial input stream buffered into chunks.</summary>
/// <param name="outStr">Output stream to write to.</param>
/// <param name="tag">Packet tag.</param>
/// <param name="length">Size of chunks making up the packet.</param>
public BcpgOutputStream(Stream outStr, PacketTag tag, long length)
{
if (outStr == null)
{
throw new ArgumentNullException("outStr");
}
_outStr = outStr;
WriteHeader(tag, false, false, length);
}
/// <summary>Create a stream representing an old style partial object.</summary>
/// <param name="outStr">Output stream to write to.</param>
/// <param name="tag">The packet tag for the object.</param>
public BcpgOutputStream(Stream outStr, PacketTag tag)
{
if (outStr == null)
{
throw new ArgumentNullException("outStr");
}
_outStr = outStr;
WriteHeader(tag, true, true, 0);
}
private void WriteHeader(PacketTag tag, bool oldPackets, bool partial, long bodyLen)
{
int num = 128;
if (partialBuffer != null)
{
PartialFlush(isLast: true);
partialBuffer = null;
}
if (oldPackets)
{
num |= (int)tag << 2;
if (partial)
{
WriteByte((byte)(num | 3));
}
else if (bodyLen <= 255)
{
WriteByte((byte)num);
WriteByte((byte)bodyLen);
}
else if (bodyLen <= 65535)
{
WriteByte((byte)(num | 1));
WriteByte((byte)(bodyLen >> 8));
WriteByte((byte)bodyLen);
}
else
{
WriteByte((byte)(num | 2));
WriteByte((byte)(bodyLen >> 24));
WriteByte((byte)(bodyLen >> 16));
WriteByte((byte)(bodyLen >> 8));
WriteByte((byte)bodyLen);
}
}
else
{
num |= (int)((PacketTag)64 | tag);
WriteByte((byte)num);
if (partial)
{
partialOffset = 0;
}
else
{
WriteNewPacketLength(bodyLen);
}
}
}
private void WriteHeader(PacketTag tag, bool oldPackets, bool partial, long bodyLen)
{
int num = 128;
if (this.partialBuffer != null)
{
this.PartialFlush(true);
this.partialBuffer = null;
}
if (oldPackets)
{
num |= (int)((int)tag << 2);
if (partial)
{
this.WriteByte((byte)(num | 3));
return;
}
if (bodyLen <= 255L)
{
this.WriteByte((byte)num);
this.WriteByte((byte)bodyLen);
return;
}
if (bodyLen <= 65535L)
{
this.WriteByte((byte)(num | 1));
this.WriteByte((byte)(bodyLen >> 8));
this.WriteByte((byte)bodyLen);
return;
}
this.WriteByte((byte)(num | 2));
this.WriteByte((byte)(bodyLen >> 24));
this.WriteByte((byte)(bodyLen >> 16));
this.WriteByte((byte)(bodyLen >> 8));
this.WriteByte((byte)bodyLen);
return;
}
else
{
num |= (int)((PacketTag)64 | tag);
this.WriteByte((byte)num);
if (partial)
{
this.partialOffset = 0;
return;
}
this.WriteNewPacketLength(bodyLen);
return;
}
}
} //IL_0002: Unknown result type (might be due to invalid IL or missing references)
//IL_000c: Expected O, but got Unknown
public PgpSecretKeyRing(Stream inputStream)
{
//IL_004b: Unknown result type (might be due to invalid IL or missing references)
keys = Platform.CreateArrayList();
extraPubKeys = Platform.CreateArrayList();
BcpgInputStream bcpgInputStream = BcpgInputStream.Wrap(inputStream);
PacketTag packetTag = bcpgInputStream.NextPacketTag();
if (packetTag != PacketTag.SecretKey && packetTag != PacketTag.SecretSubkey)
{
int num = (int)packetTag;
throw new IOException("secret key ring doesn't start with secret key tag: tag 0x" + num.ToString("X"));
}
SecretKeyPacket secretKeyPacket = (SecretKeyPacket)bcpgInputStream.ReadPacket();
while (bcpgInputStream.NextPacketTag() == PacketTag.Experimental2)
{
bcpgInputStream.ReadPacket();
}
TrustPacket trustPk = PgpKeyRing.ReadOptionalTrustPacket(bcpgInputStream);
global::System.Collections.IList keySigs = PgpKeyRing.ReadSignaturesAndTrust(bcpgInputStream);
PgpKeyRing.ReadUserIDs(bcpgInputStream, out var ids, out var idTrusts, out var idSigs);
keys.Add((object)new PgpSecretKey(secretKeyPacket, new PgpPublicKey(secretKeyPacket.PublicKeyPacket, trustPk, keySigs, ids, idTrusts, idSigs)));
while (bcpgInputStream.NextPacketTag() == PacketTag.SecretSubkey || bcpgInputStream.NextPacketTag() == PacketTag.PublicSubkey)
{
if (bcpgInputStream.NextPacketTag() == PacketTag.SecretSubkey)
{
SecretSubkeyPacket secretSubkeyPacket = (SecretSubkeyPacket)bcpgInputStream.ReadPacket();
while (bcpgInputStream.NextPacketTag() == PacketTag.Experimental2)
{
bcpgInputStream.ReadPacket();
}
TrustPacket trustPk2 = PgpKeyRing.ReadOptionalTrustPacket(bcpgInputStream);
global::System.Collections.IList sigs = PgpKeyRing.ReadSignaturesAndTrust(bcpgInputStream);
keys.Add((object)new PgpSecretKey(secretSubkeyPacket, new PgpPublicKey(secretSubkeyPacket.PublicKeyPacket, trustPk2, sigs)));
}
else
{
PublicSubkeyPacket publicPk = (PublicSubkeyPacket)bcpgInputStream.ReadPacket();
TrustPacket trustPk3 = PgpKeyRing.ReadOptionalTrustPacket(bcpgInputStream);
global::System.Collections.IList sigs2 = PgpKeyRing.ReadSignaturesAndTrust(bcpgInputStream);
extraPubKeys.Add((object)new PgpPublicKey(publicPk, trustPk3, sigs2));
}
}
}
public PgpSecretKeyRing(Stream inputStream)
{
keys = Platform.CreateArrayList();
extraPubKeys = Platform.CreateArrayList();
BcpgInputStream bcpgInputStream = BcpgInputStream.Wrap(inputStream);
PacketTag packetTag = bcpgInputStream.NextPacketTag();
if (packetTag != PacketTag.SecretKey && packetTag != PacketTag.SecretSubkey)
{
int num = (int)packetTag;
throw new IOException("secret key ring doesn't start with secret key tag: tag 0x" + num.ToString("X"));
}
SecretKeyPacket secretKeyPacket = (SecretKeyPacket)bcpgInputStream.ReadPacket();
while (bcpgInputStream.NextPacketTag() == PacketTag.Experimental2)
{
bcpgInputStream.ReadPacket();
}
TrustPacket trustPk = PgpKeyRing.ReadOptionalTrustPacket(bcpgInputStream);
IList keySigs = PgpKeyRing.ReadSignaturesAndTrust(bcpgInputStream);
PgpKeyRing.ReadUserIDs(bcpgInputStream, out IList ids, out IList idTrusts, out IList idSigs);
keys.Add(new PgpSecretKey(secretKeyPacket, new PgpPublicKey(secretKeyPacket.PublicKeyPacket, trustPk, keySigs, ids, idTrusts, idSigs)));
while (bcpgInputStream.NextPacketTag() == PacketTag.SecretSubkey || bcpgInputStream.NextPacketTag() == PacketTag.PublicSubkey)
{
if (bcpgInputStream.NextPacketTag() == PacketTag.SecretSubkey)
{
SecretSubkeyPacket secretSubkeyPacket = (SecretSubkeyPacket)bcpgInputStream.ReadPacket();
while (bcpgInputStream.NextPacketTag() == PacketTag.Experimental2)
{
bcpgInputStream.ReadPacket();
}
TrustPacket trustPk2 = PgpKeyRing.ReadOptionalTrustPacket(bcpgInputStream);
IList sigs = PgpKeyRing.ReadSignaturesAndTrust(bcpgInputStream);
keys.Add(new PgpSecretKey(secretSubkeyPacket, new PgpPublicKey(secretSubkeyPacket.PublicKeyPacket, trustPk2, sigs)));
}
else
{
PublicSubkeyPacket publicPk = (PublicSubkeyPacket)bcpgInputStream.ReadPacket();
TrustPacket trustPk3 = PgpKeyRing.ReadOptionalTrustPacket(bcpgInputStream);
IList sigs2 = PgpKeyRing.ReadSignaturesAndTrust(bcpgInputStream);
extraPubKeys.Add(new PgpPublicKey(publicPk, trustPk3, sigs2));
}
}
}
public BcpgOutputStream(Stream outStr, PacketTag tag, long length, bool oldFormat)
{
if (outStr == null)
{
throw new ArgumentNullException("outStr");
}
this.outStr = outStr;
if (length > (long)((ulong)-1))
{
this.WriteHeader(tag, false, true, 0L);
this.partialBufferLength = 65536;
this.partialBuffer = new byte[this.partialBufferLength];
this.partialPower = 16;
this.partialOffset = 0;
return;
}
this.WriteHeader(tag, oldFormat, false, length);
}
private static void WriteHeader(Stream outputStream, PacketTag tag, long bodyLen, bool partial = false, bool useOldPacket = false)
{
int hdr = 0x80;
if (useOldPacket)
{
hdr |= ((int)tag) << 2;
if (partial)
{
outputStream.WriteByte((byte)(hdr | 0x03));
}
else if (bodyLen <= 0xff)
{
outputStream.WriteByte((byte)hdr);
outputStream.WriteByte((byte)bodyLen);
}
else if (bodyLen <= 0xffff)
{
outputStream.WriteByte((byte)(hdr | 0x01));
outputStream.WriteByte((byte)(bodyLen >> 8));
outputStream.WriteByte((byte)(bodyLen));
}
else
{
outputStream.WriteByte((byte)(hdr | 0x02));
outputStream.WriteByte((byte)(bodyLen >> 24));
outputStream.WriteByte((byte)(bodyLen >> 16));
outputStream.WriteByte((byte)(bodyLen >> 8));
outputStream.WriteByte((byte)bodyLen);
}
}
else
{
hdr |= 0x40 | (int)tag;
outputStream.WriteByte((byte)hdr);
if (!partial)
{
WriteNewPacketLength(outputStream, bodyLen);
}
}
}
public BcpgOutputStream(Stream outStr, PacketTag tag, long length, bool oldFormat)
{
if (outStr == null)
{
throw new ArgumentNullException("outStr");
}
this.outStr = outStr;
if (length > uint.MaxValue)
{
WriteHeader(tag, oldPackets: false, partial: true, 0L);
partialBufferLength = 65536;
partialBuffer = new byte[partialBufferLength];
partialPower = 16;
partialOffset = 0;
}
else
{
WriteHeader(tag, oldFormat, partial: false, length);
}
}
/// <summary>Create a stream representing a general packet.</summary>
/// <param name="outStr">Output stream to write to.</param>
/// <param name="tag">Packet tag.</param>
/// <param name="length">Size of chunks making up the packet.</param>
/// <param name="oldFormat">If true, the header is written out in old format.</param>
public BcpgOutputStream(Stream outStr, PacketTag tag, long length, bool oldFormat)
{
if (outStr == null)
throw new ArgumentNullException("outStr");
_outStr = outStr;
if (length > 0xFFFFFFFFL)
{
this.WriteHeader(tag, false, true, 0);
_partialBufferLength = 1 << BufferSizePower;
_partialBuffer = new byte[_partialBufferLength];
_partialPower = BufferSizePower;
_partialOffset = 0;
}
else
{
this.WriteHeader(tag, oldFormat, false, length);
}
}
public BcpgOutputStream(Stream outStr, PacketTag tag, long length, bool oldFormat)
{
//IL_000e: Unknown result type (might be due to invalid IL or missing references)
if (outStr == null)
{
throw new ArgumentNullException("outStr");
}
this.outStr = outStr;
if (length > 4294967295u)
{
WriteHeader(tag, oldPackets: false, partial: true, 0L);
partialBufferLength = 65536;
partialBuffer = new byte[partialBufferLength];
partialPower = 16;
partialOffset = 0;
}
else
{
WriteHeader(tag, oldFormat, partial: false, length);
}
}
public PgpPublicKeyRing(Stream inputStream)
{
keys = Platform.CreateArrayList();
BcpgInputStream bcpgInputStream = BcpgInputStream.Wrap(inputStream);
PacketTag packetTag = bcpgInputStream.NextPacketTag();
if (packetTag != PacketTag.PublicKey && packetTag != PacketTag.PublicSubkey)
{
int num = (int)packetTag;
throw new IOException("public key ring doesn't start with public key tag: tag 0x" + num.ToString("X"));
}
PublicKeyPacket publicPk = (PublicKeyPacket)bcpgInputStream.ReadPacket();
TrustPacket trustPk = PgpKeyRing.ReadOptionalTrustPacket(bcpgInputStream);
IList keySigs = PgpKeyRing.ReadSignaturesAndTrust(bcpgInputStream);
PgpKeyRing.ReadUserIDs(bcpgInputStream, out IList ids, out IList idTrusts, out IList idSigs);
keys.Add(new PgpPublicKey(publicPk, trustPk, keySigs, ids, idTrusts, idSigs));
while (bcpgInputStream.NextPacketTag() == PacketTag.PublicSubkey)
{
keys.Add(ReadSubkey(bcpgInputStream));
}
}
public PgpPublicKeyRing(IPacketReader packetReader)
{
this.keys = new List <PgpPublicKey>();
PacketTag initialTag = packetReader.NextPacketTag();
if (initialTag != PacketTag.PublicKey && initialTag != PacketTag.PublicSubkey)
{
throw new PgpUnexpectedPacketException();
}
PublicKeyPacket pubPk = (PublicKeyPacket)packetReader.ReadContainedPacket();
keys.Add(new PgpPublicKey(packetReader, pubPk, subKey: false));
// Read subkeys
while (packetReader.NextPacketTag() == PacketTag.PublicSubkey)
{
pubPk = (PublicSubkeyPacket)packetReader.ReadContainedPacket();
keys.Add(new PgpPublicKey(packetReader, pubPk, subKey: true));
}
}
public PgpPublicKeyRing(Stream inputStream)
{
//IL_0041: Unknown result type (might be due to invalid IL or missing references)
keys = Platform.CreateArrayList();
BcpgInputStream bcpgInputStream = BcpgInputStream.Wrap(inputStream);
PacketTag packetTag = bcpgInputStream.NextPacketTag();
if (packetTag != PacketTag.PublicKey && packetTag != PacketTag.PublicSubkey)
{
int num = (int)packetTag;
throw new IOException("public key ring doesn't start with public key tag: tag 0x" + num.ToString("X"));
}
PublicKeyPacket publicPk = (PublicKeyPacket)bcpgInputStream.ReadPacket();
TrustPacket trustPk = PgpKeyRing.ReadOptionalTrustPacket(bcpgInputStream);
global::System.Collections.IList keySigs = PgpKeyRing.ReadSignaturesAndTrust(bcpgInputStream);
PgpKeyRing.ReadUserIDs(bcpgInputStream, out var ids, out var idTrusts, out var idSigs);
keys.Add((object)new PgpPublicKey(publicPk, trustPk, keySigs, ids, idTrusts, idSigs));
while (bcpgInputStream.NextPacketTag() == PacketTag.PublicSubkey)
{
keys.Add((object)ReadSubkey(bcpgInputStream));
}
}
public PacketOutputStream(
PacketWriter writer,
Stream outputStream,
PacketTag tag,
bool canBePartial = false,
bool preferOldFormat = false)
{
if (outputStream == null)
{
throw new ArgumentNullException(nameof(outputStream));
}
this.writer = writer;
this.outputStream = outputStream;
this.packetTag = tag;
this.canBePartial = canBePartial;
this.oldFormat = preferOldFormat && (int)tag < 16;
this.delayedHeader = true;
this.partialBufferLength = 1 << BufferSizePower;
this.partialBuffer = ArrayPool <byte> .Shared.Rent(partialBufferLength);
this.partialPower = BufferSizePower;
this.partialOffset = 0;
}
public BcpgOutputStream(Stream outStr, PacketTag tag, byte[] buffer)
{
if (outStr == null)
{
throw new ArgumentNullException("outStr");
}
this.outStr = outStr;
WriteHeader(tag, oldPackets: false, partial: true, 0L);
partialBuffer = buffer;
uint num = (uint)partialBuffer.Length;
partialPower = 0;
while (num != 1)
{
num >>= 1;
partialPower++;
}
if (partialPower > 30)
{
throw new IOException("Buffer cannot be greater than 2^30 in length.");
}
partialBufferLength = 1 << partialPower;
partialOffset = 0;
}
public Packet ReadPacket()
{
int hdr = this.ReadByte();
if (hdr < 0)
{
return(null);
}
if ((hdr & 0x80) == 0)
{
throw new IOException("invalid header encountered");
}
bool newPacket = (hdr & 0x40) != 0;
PacketTag tag = 0;
int bodyLen = 0;
bool partial = false;
if (newPacket)
{
tag = (PacketTag)(hdr & 0x3f);
int l = this.ReadByte();
if (l < 192)
{
bodyLen = l;
}
else if (l <= 223)
{
int b = m_in.ReadByte();
bodyLen = ((l - 192) << 8) + (b) + 192;
}
else if (l == 255)
{
bodyLen = (m_in.ReadByte() << 24) | (m_in.ReadByte() << 16)
| (m_in.ReadByte() << 8) | m_in.ReadByte();
}
else
{
partial = true;
bodyLen = 1 << (l & 0x1f);
}
}
else
{
int lengthType = hdr & 0x3;
tag = (PacketTag)((hdr & 0x3f) >> 2);
switch (lengthType)
{
case 0:
bodyLen = this.ReadByte();
break;
case 1:
bodyLen = (this.ReadByte() << 8) | this.ReadByte();
break;
case 2:
bodyLen = (this.ReadByte() << 24) | (this.ReadByte() << 16)
| (this.ReadByte() << 8) | this.ReadByte();
break;
case 3:
partial = true;
break;
default:
throw new IOException("unknown length type encountered");
}
}
BcpgInputStream objStream;
if (bodyLen == 0 && partial)
{
objStream = this;
}
else
{
PartialInputStream pis = new PartialInputStream(this, partial, bodyLen);
objStream = new BcpgInputStream(pis);
}
switch (tag)
{
case PacketTag.Reserved:
return(new InputStreamPacket(objStream));
case PacketTag.PublicKeyEncryptedSession:
return(new PublicKeyEncSessionPacket(objStream));
case PacketTag.Signature:
return(new SignaturePacket(objStream));
case PacketTag.SymmetricKeyEncryptedSessionKey:
return(new SymmetricKeyEncSessionPacket(objStream));
case PacketTag.OnePassSignature:
return(new OnePassSignaturePacket(objStream));
case PacketTag.SecretKey:
return(new SecretKeyPacket(objStream));
case PacketTag.PublicKey:
return(new PublicKeyPacket(objStream));
case PacketTag.SecretSubkey:
return(new SecretSubkeyPacket(objStream));
case PacketTag.CompressedData:
return(new CompressedDataPacket(objStream));
case PacketTag.SymmetricKeyEncrypted:
return(new SymmetricEncDataPacket(objStream));
case PacketTag.Marker:
return(new MarkerPacket(objStream));
case PacketTag.LiteralData:
return(new LiteralDataPacket(objStream));
case PacketTag.Trust:
return(new TrustPacket(objStream));
case PacketTag.UserId:
return(new UserIdPacket(objStream));
case PacketTag.UserAttribute:
return(new UserAttributePacket(objStream));
case PacketTag.PublicSubkey:
return(new PublicSubkeyPacket(objStream));
case PacketTag.SymmetricEncryptedIntegrityProtected:
return(new SymmetricEncIntegrityPacket(objStream));
case PacketTag.ModificationDetectionCode:
return(new ModDetectionCodePacket(objStream));
case PacketTag.Experimental1:
case PacketTag.Experimental2:
case PacketTag.Experimental3:
case PacketTag.Experimental4:
return(new ExperimentalPacket(tag, objStream));
default:
throw new IOException("unknown packet type encountered: " + tag);
}
}
/// <summary>Create a new style partial input stream buffered into chunks.</summary>
/// <param name="outStr">Output stream to write to.</param>
/// <param name="tag">Packet tag.</param>
/// <param name="buffer">Buffer to use for collecting chunks.</param>
public BcpgOutputStream(Stream outStr, PacketTag tag, byte[] buffer)
{
if (outStr == null)
{
throw new ArgumentNullException("outStr");
}
_outStr = outStr;
WriteHeader(tag, false, true, 0);
_partialBuffer = buffer;
var length = (uint) _partialBuffer.Length;
for (_partialPower = 0; length != 1; _partialPower++)
{
length >>= 1;
}
if (_partialPower > 30)
{
throw new IOException("Buffer cannot be greater than 2^30 in length.");
}
_partialBufferLength = 1 << _partialPower;
_partialOffset = 0;
}
public void WritePacket(PacketTag tag, byte[] body, bool oldFormat)
{
this.WriteHeader(tag, oldFormat, false, body.Length);
this.Write(body);
}
internal void WritePacket(PacketTag tag, byte[] body, bool oldFormat)
{
WriteHeader(tag, oldFormat, false, body.Length);
Write(body);
}
private void WriteHeader(PacketTag tag, bool oldPackets, bool partial, long bodyLen)
{
int hdr = 0x80;
if (_partialBuffer != null)
{
PartialFlush(true);
_partialBuffer = null;
}
if (oldPackets)
{
hdr |= ((int) tag) << 2;
if (partial)
{
WriteByte((byte) (hdr | 0x03));
}
else
{
if (bodyLen <= 0xff)
{
WriteByte((byte) hdr);
WriteByte((byte) bodyLen);
}
else if (bodyLen <= 0xffff)
{
WriteByte((byte) (hdr | 0x01));
WriteByte((byte) (bodyLen >> 8));
WriteByte((byte) (bodyLen));
}
else
{
WriteByte((byte) (hdr | 0x02));
WriteByte((byte) (bodyLen >> 24));
WriteByte((byte) (bodyLen >> 16));
WriteByte((byte) (bodyLen >> 8));
WriteByte((byte) bodyLen);
}
}
}
else
{
hdr |= 0x40 | (int) tag;
WriteByte((byte) hdr);
if (partial)
{
_partialOffset = 0;
}
else
{
WriteNewPacketLength(bodyLen);
}
}
}
/// <summary>Return the next object in the stream, or null if the end is reached.</summary>
/// <exception cref="IOException">On a parse error</exception>
public PgpObject NextPgpObject()
{
PacketTag tag = bcpgIn.NextPacketTag();
if ((int)tag == -1)
{
return(null);
}
switch (tag)
{
case PacketTag.Signature:
{
IList l = Platform.CreateArrayList();
while (bcpgIn.NextPacketTag() == PacketTag.Signature)
{
try
{
l.Add(new PgpSignature(bcpgIn));
}
catch (PgpException e)
{
throw new IOException("can't create signature object: " + e);
}
}
PgpSignature[] sigs = new PgpSignature[l.Count];
for (int i = 0; i < l.Count; ++i)
{
sigs[i] = (PgpSignature)l[i];
}
return(new PgpSignatureList(sigs));
}
case PacketTag.SecretKey:
try
{
return(new PgpSecretKeyRing(bcpgIn));
}
catch (PgpException e)
{
throw new IOException("can't create secret key object: " + e);
}
case PacketTag.PublicKey:
return(new PgpPublicKeyRing(bcpgIn));
// TODO Make PgpPublicKey a PgpObject or return a PgpPublicKeyRing
// case PacketTag.PublicSubkey:
// return PgpPublicKeyRing.ReadSubkey(bcpgIn);
case PacketTag.CompressedData:
return(new PgpCompressedData(bcpgIn));
case PacketTag.LiteralData:
return(new PgpLiteralData(bcpgIn));
case PacketTag.PublicKeyEncryptedSession:
case PacketTag.SymmetricKeyEncryptedSessionKey:
return(new PgpEncryptedDataList(bcpgIn));
case PacketTag.OnePassSignature:
{
IList l = Platform.CreateArrayList();
while (bcpgIn.NextPacketTag() == PacketTag.OnePassSignature)
{
try
{
l.Add(new PgpOnePassSignature(bcpgIn));
}
catch (PgpException e)
{
throw new IOException("can't create one pass signature object: " + e);
}
}
PgpOnePassSignature[] sigs = new PgpOnePassSignature[l.Count];
for (int i = 0; i < l.Count; ++i)
{
sigs[i] = (PgpOnePassSignature)l[i];
}
return(new PgpOnePassSignatureList(sigs));
}
case PacketTag.Marker:
return(new PgpMarker(bcpgIn));
case PacketTag.Experimental1:
case PacketTag.Experimental2:
case PacketTag.Experimental3:
case PacketTag.Experimental4:
return(new PgpExperimental(bcpgIn));
}
throw new IOException("unknown object in stream " + bcpgIn.NextPacketTag());
}
public PgpSecretKeyRing(
Stream inputStream)
{
this.keys = Platform.CreateArrayList();
this.extraPubKeys = Platform.CreateArrayList();
BcpgInputStream bcpgInput = BcpgInputStream.Wrap(inputStream);
PacketTag initialTag = bcpgInput.NextPacketTag();
if (initialTag != PacketTag.SecretKey && initialTag != PacketTag.SecretSubkey)
{
throw new IOException("secret key ring doesn't start with secret key tag: "
+ "tag 0x" + ((int)initialTag).ToString("X"));
}
SecretKeyPacket secret = (SecretKeyPacket)bcpgInput.ReadPacket();
//
// ignore GPG comment packets if found.
//
while (bcpgInput.NextPacketTag() == PacketTag.Experimental2)
{
bcpgInput.ReadPacket();
}
TrustPacket trust = ReadOptionalTrustPacket(bcpgInput);
// revocation and direct signatures
IList keySigs = ReadSignaturesAndTrust(bcpgInput);
IList ids, idTrusts, idSigs;
ReadUserIDs(bcpgInput, out ids, out idTrusts, out idSigs);
keys.Add(new PgpSecretKey(secret, new PgpPublicKey(secret.PublicKeyPacket, trust, keySigs, ids, idTrusts, idSigs)));
// Read subkeys
while (bcpgInput.NextPacketTag() == PacketTag.SecretSubkey ||
bcpgInput.NextPacketTag() == PacketTag.PublicSubkey)
{
if (bcpgInput.NextPacketTag() == PacketTag.SecretSubkey)
{
SecretSubkeyPacket sub = (SecretSubkeyPacket)bcpgInput.ReadPacket();
//
// ignore GPG comment packets if found.
//
while (bcpgInput.NextPacketTag() == PacketTag.Experimental2)
{
bcpgInput.ReadPacket();
}
TrustPacket subTrust = ReadOptionalTrustPacket(bcpgInput);
IList sigList = ReadSignaturesAndTrust(bcpgInput);
keys.Add(new PgpSecretKey(sub, new PgpPublicKey(sub.PublicKeyPacket, subTrust, sigList)));
}
else
{
PublicSubkeyPacket sub = (PublicSubkeyPacket)bcpgInput.ReadPacket();
TrustPacket subTrust = ReadOptionalTrustPacket(bcpgInput);
IList sigList = ReadSignaturesAndTrust(bcpgInput);
extraPubKeys.Add(new PgpPublicKey(sub, subTrust, sigList));
}
}
}
