public static void TestInvalidHeaderBlockType()
{
using (MemoryStream inputStream = new MemoryStream())
{
AxCrypt1Guid.Write(inputStream);
PreambleHeaderBlock preambleHeaderBlock = new PreambleHeaderBlock();
preambleHeaderBlock.Write(inputStream);
BadHeaderBlock badHeaderBlock = new BadHeaderBlock();
badHeaderBlock.FakeHeaderBlockLength = 5;
badHeaderBlock.SetHeaderBlockType(HeaderBlockType.Encrypted);
badHeaderBlock.Write(inputStream);
inputStream.Position = 0;
using (AxCryptReaderForTest axCryptReader = new AxCryptReaderForTest(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.Throws <FileFormatException>(() =>
{
axCryptReader.Read();
});
}
}
}
public void TestFindPreambleHeaderBlockFirstButMoreThanOnceShouldThrow()
{
using (MemoryStream testStream = new MemoryStream())
{
AxCrypt1Guid.Write(testStream);
PreambleHeaderBlock preambleHeaderBlock = new PreambleHeaderBlock();
preambleHeaderBlock.Write(testStream);
preambleHeaderBlock.Write(testStream);
testStream.Position = 0;
using (V1AxCryptReader axCryptReader = new V1AxCryptReader(new LookAheadStream(testStream)))
{
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.Throws <FileFormatException>(() => axCryptReader.Read());
}
}
}
public void TestFindPreambleHeaderBlockNotFirstShouldThrow()
{
using (MemoryStream testStream = new MemoryStream())
{
AxCrypt1Guid.Write(testStream);
VersionHeaderBlock versionHeaderBlock = new VersionHeaderBlock(new byte[] { 3, 2, 2, 0, 0 });
versionHeaderBlock.Write(testStream);
PreambleHeaderBlock preambleHeaderBlock = new PreambleHeaderBlock();
preambleHeaderBlock.Write(testStream);
testStream.Position = 0;
using (V1AxCryptReader axCryptReader = new V1AxCryptReader(new LookAheadStream(testStream)))
{
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.Throws <FileFormatException>(() => axCryptReader.Read());
}
}
}
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");
}
}
}
public static void TestKeyWrap2HeaderBlock()
{
using (MemoryStream inputStream = new MemoryStream())
{
AxCrypt1Guid.Write(inputStream);
PreambleHeaderBlock preambleHeaderBlock = new PreambleHeaderBlock();
preambleHeaderBlock.Write(inputStream);
V1KeyWrap2HeaderBlock keyWrap2HeaderBlock = new V1KeyWrap2HeaderBlock(new byte[0]);
keyWrap2HeaderBlock.Write(inputStream);
inputStream.Position = 0;
using (V1AxCryptReader axCryptReader = new V1AxCryptReader(new LookAheadStream(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.KeyWrap2), "We're expecting to have found a KeyWrap2 specifically");
}
}
}
