internal SignaturePacket( BcpgInputStream bcpgIn) { version = bcpgIn.ReadByte(); if (version == 3 || version == 2) { // int l = bcpgIn.ReadByte(); signatureType = bcpgIn.ReadByte(); creationTime = (((long)bcpgIn.ReadByte() << 24) | ((long)bcpgIn.ReadByte() << 16) | ((long)bcpgIn.ReadByte() << 8) | (uint)bcpgIn.ReadByte()) * 1000L; keyId |= (long)bcpgIn.ReadByte() << 56; keyId |= (long)bcpgIn.ReadByte() << 48; keyId |= (long)bcpgIn.ReadByte() << 40; keyId |= (long)bcpgIn.ReadByte() << 32; keyId |= (long)bcpgIn.ReadByte() << 24; keyId |= (long)bcpgIn.ReadByte() << 16; keyId |= (long)bcpgIn.ReadByte() << 8; keyId |= (uint)bcpgIn.ReadByte(); keyAlgorithm = (PublicKeyAlgorithmTag)bcpgIn.ReadByte(); hashAlgorithm = (HashAlgorithmTag)bcpgIn.ReadByte(); } else if (version == 4) { signatureType = bcpgIn.ReadByte(); keyAlgorithm = (PublicKeyAlgorithmTag)bcpgIn.ReadByte(); hashAlgorithm = (HashAlgorithmTag)bcpgIn.ReadByte(); int hashedLength = (bcpgIn.ReadByte() << 8) | bcpgIn.ReadByte(); byte[] hashed = new byte[hashedLength]; bcpgIn.ReadFully(hashed); // // read the signature sub packet data. // SignatureSubpacketsParser sIn = new SignatureSubpacketsParser( new MemoryStream(hashed, false)); ArrayList v = new ArrayList(); SignatureSubpacket sub; while ((sub = sIn.ReadPacket()) != null) { v.Add(sub); } hashedData = new SignatureSubpacket[v.Count]; for (int i = 0; i != hashedData.Length; i++) { SignatureSubpacket p = (SignatureSubpacket)v[i]; if (p is IssuerKeyId) { keyId = ((IssuerKeyId)p).KeyId; } else if (p is SignatureCreationTime) { creationTime = DateTimeUtilities.DateTimeToUnixMs( ((SignatureCreationTime)p).GetTime()); } hashedData[i] = p; } int unhashedLength = (bcpgIn.ReadByte() << 8) | bcpgIn.ReadByte(); byte[] unhashed = new byte[unhashedLength]; bcpgIn.ReadFully(unhashed); sIn = new SignatureSubpacketsParser(new MemoryStream(unhashed, false)); v.Clear(); while ((sub = sIn.ReadPacket()) != null) { v.Add(sub); } unhashedData = new SignatureSubpacket[v.Count]; for (int i = 0; i != unhashedData.Length; i++) { SignatureSubpacket p = (SignatureSubpacket)v[i]; if (p is IssuerKeyId) { keyId = ((IssuerKeyId)p).KeyId; } else if (p is SignatureCreationTime) { creationTime = DateTimeUtilities.DateTimeToUnixMs( ((SignatureCreationTime)p).GetTime()); } unhashedData[i] = (SignatureSubpacket)p; } } else { throw new Exception("unsupported version: " + version); } fingerprint = new byte[2]; bcpgIn.ReadFully(fingerprint); switch (keyAlgorithm) { case PublicKeyAlgorithmTag.RsaGeneral: case PublicKeyAlgorithmTag.RsaSign: MPInteger v = new MPInteger(bcpgIn); signature = new MPInteger[] { v }; break; case PublicKeyAlgorithmTag.Dsa: MPInteger r = new MPInteger(bcpgIn); MPInteger s = new MPInteger(bcpgIn); signature = new MPInteger[] { r, s }; break; case PublicKeyAlgorithmTag.ElGamalEncrypt: // yep, this really does happen sometimes. case PublicKeyAlgorithmTag.ElGamalGeneral: MPInteger p = new MPInteger(bcpgIn); MPInteger g = new MPInteger(bcpgIn); MPInteger y = new MPInteger(bcpgIn); signature = new MPInteger[] { p, g, y }; break; default: throw new IOException("unknown signature key algorithm: " + keyAlgorithm); } }
internal SignaturePacket(BcpgInputStream bcpgIn) { //IL_018f: Unknown result type (might be due to invalid IL or missing references) //IL_0199: Expected O, but got Unknown //IL_025a: Unknown result type (might be due to invalid IL or missing references) //IL_0264: Expected O, but got Unknown //IL_0422: Unknown result type (might be due to invalid IL or missing references) //IL_0429: Expected O, but got Unknown //IL_0464: Unknown result type (might be due to invalid IL or missing references) version = ((Stream)bcpgIn).ReadByte(); if (version == 3 || version == 2) { ((Stream)bcpgIn).ReadByte(); signatureType = ((Stream)bcpgIn).ReadByte(); creationTime = (((long)((Stream)bcpgIn).ReadByte() << 24) | ((long)((Stream)bcpgIn).ReadByte() << 16) | ((long)((Stream)bcpgIn).ReadByte() << 8) | (uint)((Stream)bcpgIn).ReadByte()) * 1000; keyId |= (long)((Stream)bcpgIn).ReadByte() << 56; keyId |= (long)((Stream)bcpgIn).ReadByte() << 48; keyId |= (long)((Stream)bcpgIn).ReadByte() << 40; keyId |= (long)((Stream)bcpgIn).ReadByte() << 32; keyId |= (long)((Stream)bcpgIn).ReadByte() << 24; keyId |= (long)((Stream)bcpgIn).ReadByte() << 16; keyId |= (long)((Stream)bcpgIn).ReadByte() << 8; keyId |= (uint)((Stream)bcpgIn).ReadByte(); keyAlgorithm = (PublicKeyAlgorithmTag)((Stream)bcpgIn).ReadByte(); hashAlgorithm = (HashAlgorithmTag)((Stream)bcpgIn).ReadByte(); } else { if (version != 4) { throw new global::System.Exception(string.Concat((object)"unsupported version: ", (object)version)); } signatureType = ((Stream)bcpgIn).ReadByte(); keyAlgorithm = (PublicKeyAlgorithmTag)((Stream)bcpgIn).ReadByte(); hashAlgorithm = (HashAlgorithmTag)((Stream)bcpgIn).ReadByte(); int num = (((Stream)bcpgIn).ReadByte() << 8) | ((Stream)bcpgIn).ReadByte(); byte[] array = new byte[num]; bcpgIn.ReadFully(array); SignatureSubpacketsParser signatureSubpacketsParser = new SignatureSubpacketsParser((Stream) new MemoryStream(array, false)); global::System.Collections.IList list = Platform.CreateArrayList(); SignatureSubpacket signatureSubpacket; while ((signatureSubpacket = signatureSubpacketsParser.ReadPacket()) != null) { list.Add((object)signatureSubpacket); } hashedData = new SignatureSubpacket[((global::System.Collections.ICollection)list).get_Count()]; for (int i = 0; i != hashedData.Length; i++) { SignatureSubpacket signatureSubpacket2 = (SignatureSubpacket)list.get_Item(i); if (signatureSubpacket2 is IssuerKeyId) { keyId = ((IssuerKeyId)signatureSubpacket2).KeyId; } else if (signatureSubpacket2 is SignatureCreationTime) { creationTime = DateTimeUtilities.DateTimeToUnixMs(((SignatureCreationTime)signatureSubpacket2).GetTime()); } hashedData[i] = signatureSubpacket2; } int num2 = (((Stream)bcpgIn).ReadByte() << 8) | ((Stream)bcpgIn).ReadByte(); byte[] array2 = new byte[num2]; bcpgIn.ReadFully(array2); signatureSubpacketsParser = new SignatureSubpacketsParser((Stream) new MemoryStream(array2, false)); list.Clear(); while ((signatureSubpacket = signatureSubpacketsParser.ReadPacket()) != null) { list.Add((object)signatureSubpacket); } unhashedData = new SignatureSubpacket[((global::System.Collections.ICollection)list).get_Count()]; for (int j = 0; j != unhashedData.Length; j++) { SignatureSubpacket signatureSubpacket3 = (SignatureSubpacket)list.get_Item(j); if (signatureSubpacket3 is IssuerKeyId) { keyId = ((IssuerKeyId)signatureSubpacket3).KeyId; } unhashedData[j] = signatureSubpacket3; } } fingerprint = new byte[2]; bcpgIn.ReadFully(fingerprint); switch (keyAlgorithm) { case PublicKeyAlgorithmTag.RsaGeneral: case PublicKeyAlgorithmTag.RsaSign: { MPInteger mPInteger8 = new MPInteger(bcpgIn); signature = new MPInteger[1] { mPInteger8 }; return; } case PublicKeyAlgorithmTag.Dsa: { MPInteger mPInteger6 = new MPInteger(bcpgIn); MPInteger mPInteger7 = new MPInteger(bcpgIn); signature = new MPInteger[2] { mPInteger6, mPInteger7 }; return; } case PublicKeyAlgorithmTag.ElGamalEncrypt: case PublicKeyAlgorithmTag.ElGamalGeneral: { MPInteger mPInteger3 = new MPInteger(bcpgIn); MPInteger mPInteger4 = new MPInteger(bcpgIn); MPInteger mPInteger5 = new MPInteger(bcpgIn); signature = new MPInteger[3] { mPInteger3, mPInteger4, mPInteger5 }; return; } case PublicKeyAlgorithmTag.ECDsa: { MPInteger mPInteger = new MPInteger(bcpgIn); MPInteger mPInteger2 = new MPInteger(bcpgIn); signature = new MPInteger[2] { mPInteger, mPInteger2 }; return; } } if (keyAlgorithm >= PublicKeyAlgorithmTag.Experimental_1 && keyAlgorithm <= PublicKeyAlgorithmTag.Experimental_11) { signature = null; MemoryStream val = new MemoryStream(); int num3; while ((num3 = ((Stream)bcpgIn).ReadByte()) >= 0) { ((Stream)val).WriteByte((byte)num3); } signatureEncoding = val.ToArray(); return; } throw new IOException(string.Concat((object)"unknown signature key algorithm: ", (object)keyAlgorithm)); }
internal SignaturePacket( BcpgInputStream bcpgIn) { version = bcpgIn.ReadByte(); if (version == 3 || version == 2) { // int l = bcpgIn.ReadByte(); signatureType = bcpgIn.ReadByte(); creationTime = (((long)bcpgIn.ReadByte() << 24) | ((long)bcpgIn.ReadByte() << 16) | ((long)bcpgIn.ReadByte() << 8) | (uint)bcpgIn.ReadByte()) * 1000L; keyId |= (long)bcpgIn.ReadByte() << 56; keyId |= (long)bcpgIn.ReadByte() << 48; keyId |= (long)bcpgIn.ReadByte() << 40; keyId |= (long)bcpgIn.ReadByte() << 32; keyId |= (long)bcpgIn.ReadByte() << 24; keyId |= (long)bcpgIn.ReadByte() << 16; keyId |= (long)bcpgIn.ReadByte() << 8; keyId |= (uint)bcpgIn.ReadByte(); keyAlgorithm = (PublicKeyAlgorithmTag) bcpgIn.ReadByte(); hashAlgorithm = (HashAlgorithmTag) bcpgIn.ReadByte(); } else if (version == 4) { signatureType = bcpgIn.ReadByte(); keyAlgorithm = (PublicKeyAlgorithmTag) bcpgIn.ReadByte(); hashAlgorithm = (HashAlgorithmTag) bcpgIn.ReadByte(); int hashedLength = (bcpgIn.ReadByte() << 8) | bcpgIn.ReadByte(); byte[] hashed = new byte[hashedLength]; bcpgIn.ReadFully(hashed); // // read the signature sub packet data. // SignatureSubpacketsParser sIn = new SignatureSubpacketsParser( new MemoryStream(hashed, false)); ArrayList v = new ArrayList(); SignatureSubpacket sub; while ((sub = sIn.ReadPacket()) != null) { v.Add(sub); } hashedData = new SignatureSubpacket[v.Count]; for (int i = 0; i != hashedData.Length; i++) { SignatureSubpacket p = (SignatureSubpacket)v[i]; if (p is IssuerKeyId) { keyId = ((IssuerKeyId)p).KeyId; } else if (p is SignatureCreationTime) { creationTime = DateTimeUtilities.DateTimeToUnixMs( ((SignatureCreationTime)p).GetTime()); } hashedData[i] = p; } int unhashedLength = (bcpgIn.ReadByte() << 8) | bcpgIn.ReadByte(); byte[] unhashed = new byte[unhashedLength]; bcpgIn.ReadFully(unhashed); sIn = new SignatureSubpacketsParser(new MemoryStream(unhashed, false)); v.Clear(); while ((sub = sIn.ReadPacket()) != null) { v.Add(sub); } unhashedData = new SignatureSubpacket[v.Count]; for (int i = 0; i != unhashedData.Length; i++) { SignatureSubpacket p = (SignatureSubpacket)v[i]; if (p is IssuerKeyId) { keyId = ((IssuerKeyId)p).KeyId; } unhashedData[i] = p; } } else { throw new Exception("unsupported version: " + version); } fingerprint = new byte[2]; bcpgIn.ReadFully(fingerprint); switch (keyAlgorithm) { case PublicKeyAlgorithmTag.RsaGeneral: case PublicKeyAlgorithmTag.RsaSign: MPInteger v = new MPInteger(bcpgIn); signature = new MPInteger[]{ v }; break; case PublicKeyAlgorithmTag.Dsa: MPInteger r = new MPInteger(bcpgIn); MPInteger s = new MPInteger(bcpgIn); signature = new MPInteger[]{ r, s }; break; case PublicKeyAlgorithmTag.ElGamalEncrypt: // yep, this really does happen sometimes. case PublicKeyAlgorithmTag.ElGamalGeneral: MPInteger p = new MPInteger(bcpgIn); MPInteger g = new MPInteger(bcpgIn); MPInteger y = new MPInteger(bcpgIn); signature = new MPInteger[]{ p, g, y }; break; default: if (keyAlgorithm >= PublicKeyAlgorithmTag.Experimental_1 && keyAlgorithm <= PublicKeyAlgorithmTag.Experimental_11) { signature = null; MemoryStream bOut = new MemoryStream(); int ch; while ((ch = bcpgIn.ReadByte()) >= 0) { bOut.WriteByte((byte) ch); } signatureEncoding = bOut.ToArray(); } else { throw new IOException("unknown signature key algorithm: " + keyAlgorithm); } break; } }
internal SignaturePacket(BcpgInputStream bcpgIn) { _version = bcpgIn.ReadByte(); //TODO: refactor switch (_version) { case 2: case 3: bcpgIn.ReadByte(); _signatureType = bcpgIn.ReadByte(); CreationTime = (((long)bcpgIn.ReadByte() << 24) | ((long)bcpgIn.ReadByte() << 16) | ((long)bcpgIn.ReadByte() << 8) | (uint)bcpgIn.ReadByte()) * 1000L; _keyId |= (long)bcpgIn.ReadByte() << 56; _keyId |= (long)bcpgIn.ReadByte() << 48; _keyId |= (long)bcpgIn.ReadByte() << 40; _keyId |= (long)bcpgIn.ReadByte() << 32; _keyId |= (long)bcpgIn.ReadByte() << 24; _keyId |= (long)bcpgIn.ReadByte() << 16; _keyId |= (long)bcpgIn.ReadByte() << 8; _keyId |= (uint)bcpgIn.ReadByte(); _keyAlgorithm = (PublicKeyAlgorithmTag)bcpgIn.ReadByte(); _hashAlgorithm = (HashAlgorithmTag)bcpgIn.ReadByte(); break; case 4: { _signatureType = bcpgIn.ReadByte(); _keyAlgorithm = (PublicKeyAlgorithmTag)bcpgIn.ReadByte(); _hashAlgorithm = (HashAlgorithmTag)bcpgIn.ReadByte(); var hashedLength = (bcpgIn.ReadByte() << 8) | bcpgIn.ReadByte(); var hashed = new byte[hashedLength]; bcpgIn.ReadFully(hashed); // // read the signature sub packet data. // using (var hashedStream = new MemoryStream(hashed, false)) { var sIn = new SignatureSubpacketsParser(hashedStream); var v = Platform.CreateArrayList<ISignatureSubpacket>(); SignatureSubpacket sub; while ((sub = sIn.ReadPacket()) != null) { v.Add(sub); var issuerKeyId = sub as IssuerKeyId; if (issuerKeyId != null) { _keyId = issuerKeyId.KeyId; } else { var signatureCreationTime = sub as SignatureCreationTime; if (signatureCreationTime != null) { CreationTime = DateTimeUtilities.DateTimeToUnixMs(signatureCreationTime.GetTime()); } } } _hashedData = v.ToArray(); var unhashedLength = (bcpgIn.ReadByte() << 8) | bcpgIn.ReadByte(); var unhashed = new byte[unhashedLength]; bcpgIn.ReadFully(unhashed); v.Clear(); using (var unhashedStream = new MemoryStream(unhashed, false)) { sIn = new SignatureSubpacketsParser(unhashedStream); while ((sub = sIn.ReadPacket()) != null) { v.Add(sub); var issuerKeyId = sub as IssuerKeyId; if (issuerKeyId != null) { _keyId = issuerKeyId.KeyId; } } } _unhashedData = v.ToArray(); } } break; default: throw new Exception("unsupported version: " + _version); } _fingerprint = new byte[2]; bcpgIn.ReadFully(_fingerprint); switch (_keyAlgorithm) { case PublicKeyAlgorithmTag.RsaGeneral: case PublicKeyAlgorithmTag.RsaSign: var v = new MPInteger(bcpgIn); _signature = new[] { v }; break; case PublicKeyAlgorithmTag.Dsa: case PublicKeyAlgorithmTag.Ecdsa: case PublicKeyAlgorithmTag.Ecdh: var r = new MPInteger(bcpgIn); var s = new MPInteger(bcpgIn); _signature = new[] { r, s }; break; case PublicKeyAlgorithmTag.ElGamalEncrypt: // yep, this really does happen sometimes. case PublicKeyAlgorithmTag.ElGamalGeneral: var p = new MPInteger(bcpgIn); var g = new MPInteger(bcpgIn); var y = new MPInteger(bcpgIn); _signature = new[] { p, g, y }; break; default: if (_keyAlgorithm >= PublicKeyAlgorithmTag.Experimental_1 && _keyAlgorithm <= PublicKeyAlgorithmTag.Experimental_11) { _signature = null; using (var bOut = new MemoryStream()) { int ch; while ((ch = bcpgIn.ReadByte()) >= 0) { bOut.WriteByte((byte)ch); } _signatureEncoding = bOut.ToArray(); } } else { throw new IOException("unknown signature key algorithm: " + _keyAlgorithm); } break; } }
internal SignaturePacket(BcpgInputStream bcpgIn) { this.version = bcpgIn.ReadByte(); if (this.version == 3 || this.version == 2) { bcpgIn.ReadByte(); this.signatureType = bcpgIn.ReadByte(); this.creationTime = ((long)bcpgIn.ReadByte() << 24 | (long)bcpgIn.ReadByte() << 16 | (long)bcpgIn.ReadByte() << 8 | (long)((ulong)bcpgIn.ReadByte())) * 1000L; this.keyId |= (long)bcpgIn.ReadByte() << 56; this.keyId |= (long)bcpgIn.ReadByte() << 48; this.keyId |= (long)bcpgIn.ReadByte() << 40; this.keyId |= (long)bcpgIn.ReadByte() << 32; this.keyId |= (long)bcpgIn.ReadByte() << 24; this.keyId |= (long)bcpgIn.ReadByte() << 16; this.keyId |= (long)bcpgIn.ReadByte() << 8; this.keyId |= (long)((ulong)bcpgIn.ReadByte()); this.keyAlgorithm = (PublicKeyAlgorithmTag)bcpgIn.ReadByte(); this.hashAlgorithm = (HashAlgorithmTag)bcpgIn.ReadByte(); } else { if (this.version != 4) { throw new Exception("unsupported version: " + this.version); } this.signatureType = bcpgIn.ReadByte(); this.keyAlgorithm = (PublicKeyAlgorithmTag)bcpgIn.ReadByte(); this.hashAlgorithm = (HashAlgorithmTag)bcpgIn.ReadByte(); int num = bcpgIn.ReadByte() << 8 | bcpgIn.ReadByte(); byte[] buffer = new byte[num]; bcpgIn.ReadFully(buffer); SignatureSubpacketsParser signatureSubpacketsParser = new SignatureSubpacketsParser(new MemoryStream(buffer, false)); IList list = Platform.CreateArrayList(); SignatureSubpacket value; while ((value = signatureSubpacketsParser.ReadPacket()) != null) { list.Add(value); } this.hashedData = new SignatureSubpacket[list.Count]; for (int num2 = 0; num2 != this.hashedData.Length; num2++) { SignatureSubpacket signatureSubpacket = (SignatureSubpacket)list[num2]; if (signatureSubpacket is IssuerKeyId) { this.keyId = ((IssuerKeyId)signatureSubpacket).KeyId; } else if (signatureSubpacket is SignatureCreationTime) { this.creationTime = DateTimeUtilities.DateTimeToUnixMs(((SignatureCreationTime)signatureSubpacket).GetTime()); } this.hashedData[num2] = signatureSubpacket; } int num3 = bcpgIn.ReadByte() << 8 | bcpgIn.ReadByte(); byte[] buffer2 = new byte[num3]; bcpgIn.ReadFully(buffer2); signatureSubpacketsParser = new SignatureSubpacketsParser(new MemoryStream(buffer2, false)); list.Clear(); while ((value = signatureSubpacketsParser.ReadPacket()) != null) { list.Add(value); } this.unhashedData = new SignatureSubpacket[list.Count]; for (int num4 = 0; num4 != this.unhashedData.Length; num4++) { SignatureSubpacket signatureSubpacket2 = (SignatureSubpacket)list[num4]; if (signatureSubpacket2 is IssuerKeyId) { this.keyId = ((IssuerKeyId)signatureSubpacket2).KeyId; } this.unhashedData[num4] = signatureSubpacket2; } } this.fingerprint = new byte[2]; bcpgIn.ReadFully(this.fingerprint); PublicKeyAlgorithmTag publicKeyAlgorithmTag = this.keyAlgorithm; switch (publicKeyAlgorithmTag) { case PublicKeyAlgorithmTag.RsaGeneral: case PublicKeyAlgorithmTag.RsaSign: { MPInteger mPInteger = new MPInteger(bcpgIn); this.signature = new MPInteger[] { mPInteger }; return; } case PublicKeyAlgorithmTag.RsaEncrypt: break; default: switch (publicKeyAlgorithmTag) { case PublicKeyAlgorithmTag.ElGamalEncrypt: case PublicKeyAlgorithmTag.ElGamalGeneral: { MPInteger mPInteger2 = new MPInteger(bcpgIn); MPInteger mPInteger3 = new MPInteger(bcpgIn); MPInteger mPInteger4 = new MPInteger(bcpgIn); this.signature = new MPInteger[] { mPInteger2, mPInteger3, mPInteger4 }; return; } case PublicKeyAlgorithmTag.Dsa: { MPInteger mPInteger5 = new MPInteger(bcpgIn); MPInteger mPInteger6 = new MPInteger(bcpgIn); this.signature = new MPInteger[] { mPInteger5, mPInteger6 }; return; } } break; } if (this.keyAlgorithm >= PublicKeyAlgorithmTag.Experimental_1 && this.keyAlgorithm <= PublicKeyAlgorithmTag.Experimental_11) { this.signature = null; MemoryStream memoryStream = new MemoryStream(); int num5; while ((num5 = bcpgIn.ReadByte()) >= 0) { memoryStream.WriteByte((byte)num5); } this.signatureEncoding = memoryStream.ToArray(); return; } throw new IOException("unknown signature key algorithm: " + this.keyAlgorithm); }
internal SignaturePacket(BcpgInputStream bcpgIn) { _version = bcpgIn.ReadByte(); //TODO: refactor switch (_version) { case 2: case 3: bcpgIn.ReadByte(); _signatureType = bcpgIn.ReadByte(); CreationTime = (((long)bcpgIn.ReadByte() << 24) | ((long)bcpgIn.ReadByte() << 16) | ((long)bcpgIn.ReadByte() << 8) | (uint)bcpgIn.ReadByte()) * 1000L; _keyId |= (long)bcpgIn.ReadByte() << 56; _keyId |= (long)bcpgIn.ReadByte() << 48; _keyId |= (long)bcpgIn.ReadByte() << 40; _keyId |= (long)bcpgIn.ReadByte() << 32; _keyId |= (long)bcpgIn.ReadByte() << 24; _keyId |= (long)bcpgIn.ReadByte() << 16; _keyId |= (long)bcpgIn.ReadByte() << 8; _keyId |= (uint)bcpgIn.ReadByte(); _keyAlgorithm = (PublicKeyAlgorithmTag)bcpgIn.ReadByte(); _hashAlgorithm = (HashAlgorithmTag)bcpgIn.ReadByte(); break; case 4: { _signatureType = bcpgIn.ReadByte(); _keyAlgorithm = (PublicKeyAlgorithmTag)bcpgIn.ReadByte(); _hashAlgorithm = (HashAlgorithmTag)bcpgIn.ReadByte(); var hashedLength = (bcpgIn.ReadByte() << 8) | bcpgIn.ReadByte(); var hashed = new byte[hashedLength]; bcpgIn.ReadFully(hashed); // // read the signature sub packet data. // using (var hashedStream = new MemoryStream(hashed, false)) { var sIn = new SignatureSubpacketsParser(hashedStream); var v = Platform.CreateArrayList <ISignatureSubpacket>(); SignatureSubpacket sub; while ((sub = sIn.ReadPacket()) != null) { v.Add(sub); var issuerKeyId = sub as IssuerKeyId; if (issuerKeyId != null) { _keyId = issuerKeyId.KeyId; } else { var signatureCreationTime = sub as SignatureCreationTime; if (signatureCreationTime != null) { CreationTime = DateTimeUtilities.DateTimeToUnixMs(signatureCreationTime.GetTime()); } } } _hashedData = v.ToArray(); var unhashedLength = (bcpgIn.ReadByte() << 8) | bcpgIn.ReadByte(); var unhashed = new byte[unhashedLength]; bcpgIn.ReadFully(unhashed); v.Clear(); using (var unhashedStream = new MemoryStream(unhashed, false)) { sIn = new SignatureSubpacketsParser(unhashedStream); while ((sub = sIn.ReadPacket()) != null) { v.Add(sub); var issuerKeyId = sub as IssuerKeyId; if (issuerKeyId != null) { _keyId = issuerKeyId.KeyId; } } } _unhashedData = v.ToArray(); } } break; default: throw new Exception("unsupported version: " + _version); } _fingerprint = new byte[2]; bcpgIn.ReadFully(_fingerprint); switch (_keyAlgorithm) { case PublicKeyAlgorithmTag.RsaGeneral: case PublicKeyAlgorithmTag.RsaSign: var v = new MPInteger(bcpgIn); _signature = new[] { v }; break; case PublicKeyAlgorithmTag.Dsa: case PublicKeyAlgorithmTag.Ecdsa: case PublicKeyAlgorithmTag.Ecdh: var r = new MPInteger(bcpgIn); var s = new MPInteger(bcpgIn); _signature = new[] { r, s }; break; case PublicKeyAlgorithmTag.ElGamalEncrypt: // yep, this really does happen sometimes. case PublicKeyAlgorithmTag.ElGamalGeneral: var p = new MPInteger(bcpgIn); var g = new MPInteger(bcpgIn); var y = new MPInteger(bcpgIn); _signature = new[] { p, g, y }; break; default: if (_keyAlgorithm >= PublicKeyAlgorithmTag.Experimental_1 && _keyAlgorithm <= PublicKeyAlgorithmTag.Experimental_11) { _signature = null; using (var bOut = new MemoryStream()) { int ch; while ((ch = bcpgIn.ReadByte()) >= 0) { bOut.WriteByte((byte)ch); } _signatureEncoding = bOut.ToArray(); } } else { throw new IOException("unknown signature key algorithm: " + _keyAlgorithm); } break; } }