public static void TestClone() { UnrecognizedHeaderBlock unrecognizedHeaderBlock = new UnrecognizedHeaderBlock(HeaderBlockType.Unrecognized, new byte[] { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16 }); UnrecognizedHeaderBlock cloned = (UnrecognizedHeaderBlock)unrecognizedHeaderBlock.Clone(); Assert.That(unrecognizedHeaderBlock, Is.Not.SameAs(cloned), "The clone should not be the same reference."); Assert.That(cloned.GetDataBlockBytes(), Is.EquivalentTo(unrecognizedHeaderBlock.GetDataBlockBytes()), "The clone should have equivalent data block bytes as the original."); }
private void ParseHeaderBlock(HeaderBlockType headerBlockType, byte[] dataBlock) { bool isFirst = CurrentItemType == AxCryptItemType.MagicGuid; CurrentItemType = AxCryptItemType.HeaderBlock; if (headerBlockType == HeaderBlockType.Preamble) { if (!isFirst) { throw new FileFormatException("Preamble can only be first.", ErrorStatus.FileFormatError); } CurrentHeaderBlock = new PreambleHeaderBlock(dataBlock); _sendDataToHmacStream = true; return; } else { if (isFirst) { throw new FileFormatException("Preamble must be first.", ErrorStatus.FileFormatError); } } switch (headerBlockType) { case HeaderBlockType.Version: CurrentHeaderBlock = new VersionHeaderBlock(dataBlock); break; case HeaderBlockType.KeyWrap1: CurrentHeaderBlock = new KeyWrap1HeaderBlock(dataBlock); break; case HeaderBlockType.KeyWrap2: CurrentHeaderBlock = new KeyWrap2HeaderBlock(dataBlock); break; case HeaderBlockType.IdTag: CurrentHeaderBlock = new IdTagHeaderBlock(dataBlock); break; case HeaderBlockType.Data: CurrentHeaderBlock = new DataHeaderBlock(dataBlock); break; case HeaderBlockType.FileNameInfo: CurrentHeaderBlock = new FileNameInfoHeaderBlock(dataBlock); break; case HeaderBlockType.EncryptionInfo: CurrentHeaderBlock = new EncryptionInfoHeaderBlock(dataBlock); break; case HeaderBlockType.CompressionInfo: CurrentHeaderBlock = new CompressionInfoHeaderBlock(dataBlock); break; case HeaderBlockType.FileInfo: CurrentHeaderBlock = new FileInfoHeaderBlock(dataBlock); break; case HeaderBlockType.Compression: CurrentHeaderBlock = new CompressionHeaderBlock(dataBlock); break; case HeaderBlockType.UnicodeFileNameInfo: CurrentHeaderBlock = new UnicodeFileNameInfoHeaderBlock(dataBlock); break; case HeaderBlockType.Encrypted: case HeaderBlockType.None: case HeaderBlockType.Any: throw new FileFormatException("Illegal header block type.", ErrorStatus.FileFormatError); default: CurrentHeaderBlock = new UnrecognizedHeaderBlock(headerBlockType, dataBlock); break; } if (_sendDataToHmacStream) { CurrentHeaderBlock.Write(_hmacBufferStream); } return; }
private void ParseHeaderBlock(HeaderBlockType headerBlockType, byte[] dataBlock) { bool isFirst = CurrentItemType == AxCryptItemType.MagicGuid; CurrentItemType = AxCryptItemType.HeaderBlock; if (headerBlockType == HeaderBlockType.Preamble) { if (!isFirst) { throw new FileFormatException("Preamble can only be first.", ErrorStatus.FileFormatError); } CurrentHeaderBlock = new PreambleHeaderBlock(dataBlock); _sendDataToHmacStream = true; return; } else { if (isFirst) { throw new FileFormatException("Preamble must be first.", ErrorStatus.FileFormatError); } } switch (headerBlockType) { case HeaderBlockType.Version: CurrentHeaderBlock = new VersionHeaderBlock(dataBlock); break; case HeaderBlockType.KeyWrap1: CurrentHeaderBlock = new KeyWrap1HeaderBlock(dataBlock); break; case HeaderBlockType.KeyWrap2: CurrentHeaderBlock = new KeyWrap2HeaderBlock(dataBlock); break; case HeaderBlockType.IdTag: CurrentHeaderBlock = new IdTagHeaderBlock(dataBlock); break; case HeaderBlockType.Data: CurrentHeaderBlock = new DataHeaderBlock(dataBlock); break; case HeaderBlockType.FileNameInfo: CurrentHeaderBlock = new FileNameInfoHeaderBlock(dataBlock); break; case HeaderBlockType.EncryptionInfo: CurrentHeaderBlock = new EncryptionInfoHeaderBlock(dataBlock); break; case HeaderBlockType.CompressionInfo: CurrentHeaderBlock = new CompressionInfoHeaderBlock(dataBlock); break; case HeaderBlockType.FileInfo: CurrentHeaderBlock = new FileInfoHeaderBlock(dataBlock); break; case HeaderBlockType.Compression: CurrentHeaderBlock = new CompressionHeaderBlock(dataBlock); break; case HeaderBlockType.UnicodeFileNameInfo: CurrentHeaderBlock = new UnicodeFileNameInfoHeaderBlock(dataBlock); break; case HeaderBlockType.Encrypted: case HeaderBlockType.None: case HeaderBlockType.Any: throw new FileFormatException("Illegal header block type.", ErrorStatus.FileFormatError); default: CurrentHeaderBlock = new UnrecognizedHeaderBlock(headerBlockType, dataBlock); break; } if (_sendDataToHmacStream) { CurrentHeaderBlock.Write(_hmacBufferStream); } return; }
public static void TestUnrecognizedHeaderBlock() { using (MemoryStream inputStream = new MemoryStream()) { AxCrypt1Guid.Write(inputStream); PreambleHeaderBlock preambleHeaderBlock = new PreambleHeaderBlock(); preambleHeaderBlock.Write(inputStream); UnrecognizedHeaderBlock unrecognizedHeaderBlock = new UnrecognizedHeaderBlock(HeaderBlockType.Unrecognized, new byte[0]); unrecognizedHeaderBlock.Write(inputStream); inputStream.Position = 0; using (AxCryptReader axCryptReader = AxCryptReader.Create(inputStream)) { Assert.That(axCryptReader.Read(), Is.True, "We should be able to read the Guid"); Assert.That(axCryptReader.CurrentItemType, Is.EqualTo(AxCryptItemType.MagicGuid), "We're expecting to have found a MagicGuid"); Assert.That(axCryptReader.Read(), Is.True, "We should be able to read the next HeaderBlock"); Assert.That(axCryptReader.CurrentItemType, Is.EqualTo(AxCryptItemType.HeaderBlock), "We're expecting to have found a HeaderBlock"); Assert.That(axCryptReader.CurrentHeaderBlock.HeaderBlockType, Is.EqualTo(HeaderBlockType.Preamble), "We're expecting to have found a Preamble specifically"); Assert.That(axCryptReader.Read(), Is.True, "We should be able to read the next HeaderBlock"); Assert.That(axCryptReader.CurrentItemType, Is.EqualTo(AxCryptItemType.HeaderBlock), "We're expecting to have found a HeaderBlock"); Assert.That(axCryptReader.CurrentHeaderBlock.HeaderBlockType, Is.EqualTo(HeaderBlockType.Unrecognized), "We're expecting to have found an unrecognized block specifically"); } } }