public void TestChangePassphraseForSimpleFile()
{
Passphrase passphrase = new Passphrase("a");
using (V1AxCryptDocument document = new V1AxCryptDocument())
{
bool keyIsOk = document.Load(passphrase, new V1Aes128CryptoFactory().CryptoId, FakeDataStore.ExpandableMemoryStream(Resources.helloworld_key_a_txt));
Assert.That(keyIsOk, Is.True, "The passphrase provided is correct and should work!");
Passphrase newPassphrase = new Passphrase("b");
using (Stream changedStream = new MemoryStream())
{
V1DocumentHeaders outputDocumentHeaders = new V1DocumentHeaders(document.DocumentHeaders);
outputDocumentHeaders.RewrapMasterKey(new V1DerivedKey(newPassphrase), 35);
document.CopyEncryptedTo(outputDocumentHeaders, changedStream);
changedStream.Position = 0;
using (V1AxCryptDocument changedDocument = new V1AxCryptDocument())
{
bool changedKeyIsOk = changedDocument.Load(newPassphrase, new V1Aes128CryptoFactory().CryptoId, changedStream);
Assert.That(changedKeyIsOk, Is.True, "The changed passphrase provided is correct and should work!");
using (MemoryStream plaintextStream = new MemoryStream())
{
changedDocument.DecryptTo(plaintextStream);
Assert.That(Encoding.ASCII.GetString(plaintextStream.GetBuffer(), 0, (int)plaintextStream.Length), Is.EqualTo("HelloWorld"), "Unexpected result of decryption.");
Assert.That(changedDocument.DocumentHeaders.PlaintextLength, Is.EqualTo(10), "'HelloWorld' should be 10 bytes uncompressed plaintext.");
}
}
}
}
}
public void TestInvalidArguments()
{
using (Stream inputStream = FakeDataStore.ExpandableMemoryStream(Encoding.UTF8.GetBytes("AxCrypt is Great!")))
{
using (Stream outputStream = new MemoryStream())
{
using (V1AxCryptDocument document = new V1AxCryptDocument())
{
Assert.Throws <ArgumentNullException>(() => { document.EncryptTo(inputStream, null, AxCryptOptions.EncryptWithCompression); });
Assert.Throws <ArgumentNullException>(() => { document.EncryptTo(null, outputStream, AxCryptOptions.EncryptWithCompression); });
Assert.Throws <ArgumentException>(() => { document.EncryptTo(inputStream, new NonSeekableStream(), AxCryptOptions.EncryptWithCompression); });
Assert.Throws <ArgumentException>(() => { document.EncryptTo(inputStream, outputStream, AxCryptOptions.EncryptWithCompression | AxCryptOptions.EncryptWithoutCompression); });
Assert.Throws <ArgumentException>(() => { document.EncryptTo(inputStream, outputStream, AxCryptOptions.None); });
Passphrase passphrase = new Passphrase("a");
V1DocumentHeaders headers = new V1DocumentHeaders(passphrase, 13);
Assert.Throws <ArgumentNullException>(() => { document.CopyEncryptedTo(null, outputStream); });
Assert.Throws <ArgumentNullException>(() => { document.CopyEncryptedTo(headers, null); });
Assert.Throws <ArgumentException>(() => { document.CopyEncryptedTo(headers, new NonSeekableStream()); });
Assert.Throws <InternalErrorException>(() => { document.CopyEncryptedTo(headers, outputStream); });
}
}
}
}
public void TestDoubleDispose()
{
V1AxCryptDocument document = new V1AxCryptDocument();
document.Dispose();
document.Dispose();
}
public void TestInvalidHmacInCopyEncryptedTo()
{
Passphrase passphrase = new Passphrase("a");
using (V1AxCryptDocument document = new V1AxCryptDocument())
{
bool keyIsOk = document.Load(passphrase, new V1Aes128CryptoFactory().CryptoId, FakeDataStore.ExpandableMemoryStream(Resources.helloworld_key_a_txt));
Assert.That(keyIsOk, Is.True, "The passphrase provided is correct and should work!");
Passphrase newPassphrase = new Passphrase("b");
using (Stream changedStream = new MemoryStream())
{
V1DocumentHeaders outputDocumentHeaders = new V1DocumentHeaders(document.DocumentHeaders);
outputDocumentHeaders.RewrapMasterKey(new V1DerivedKey(newPassphrase), 15);
byte[] modifiedHmacBytes = document.DocumentHeaders.Headers.Hmac.GetBytes();
modifiedHmacBytes[0] += 1;
document.DocumentHeaders.Headers.Hmac = new V1Hmac(modifiedHmacBytes);
Assert.Throws <Axantum.AxCrypt.Core.Runtime.IncorrectDataException>(() =>
{
document.CopyEncryptedTo(outputDocumentHeaders, changedStream);
});
}
}
}
public void TestDecryptOfTooNewFileVersion()
{
DateTime creationTimeUtc = new DateTime(2012, 1, 1, 1, 2, 3, DateTimeKind.Utc);
DateTime lastAccessTimeUtc = creationTimeUtc + new TimeSpan(1, 0, 0);
DateTime lastWriteTimeUtc = creationTimeUtc + new TimeSpan(2, 0, 0);;
using (Stream inputStream = FakeDataStore.ExpandableMemoryStream(Encoding.UTF8.GetBytes("AxCrypt is Great!")))
{
using (Stream outputStream = new MemoryStream())
{
Passphrase passphrase = new Passphrase("a");
using (V1AxCryptDocument document = new V1AxCryptDocument(passphrase, 101))
{
document.FileName = "MyFile.txt";
document.CreationTimeUtc = creationTimeUtc;
document.LastAccessTimeUtc = lastAccessTimeUtc;
document.LastWriteTimeUtc = lastWriteTimeUtc;
VersionHeaderBlock versionHeaderBlock = document.DocumentHeaders.VersionHeaderBlock;
versionHeaderBlock.FileVersionMajor = (byte)(versionHeaderBlock.FileVersionMajor + 1);
document.EncryptTo(inputStream, outputStream, AxCryptOptions.EncryptWithoutCompression);
}
outputStream.Position = 0;
using (V1AxCryptDocument document = new V1AxCryptDocument())
{
Assert.Throws <FileFormatException>(() => { document.Load(passphrase, new V1Aes128CryptoFactory().CryptoId, outputStream); });
}
}
}
}
public override IAxCryptDocument Document(Passphrase passphrase, Guid cryptoId, Headers headers)
{
V1AxCryptDocument v1Document = new V1AxCryptDocument(this);
v1Document.Load(passphrase, cryptoId, headers);
return(v1Document);
}
public void TestInvalidArguments()
{
IDataStore sourceFileInfo = New <IDataStore>(_testTextPath);
IDataStore destinationFileInfo = sourceFileInfo.CreateEncryptedName();
IAxCryptDocument document = new V1AxCryptDocument();
IDataStore decryptedFileInfo = New <IDataStore>(Path.Combine(_rootPath, "decrypted test.txt"));
IAxCryptDocument nullDocument = null;
IDataStore nullFileInfo = null;
LogOnIdentity nullKey = null;
ProgressContext nullProgress = null;
EncryptionParameters nullEncryptionParameters = null;
Stream nullStream = null;
string nullString = null;
Func <Stream, Task> nullStreamAction = null;
FileLock nullFileLock = null;
Assert.Throws <ArgumentNullException>(() => { new AxCryptFile().Encrypt(nullFileInfo, destinationFileInfo, new EncryptionParameters(new V1Aes128CryptoFactory().CryptoId, new Passphrase("axcrypt")), AxCryptOptions.EncryptWithCompression, new ProgressContext()); });
Assert.Throws <ArgumentNullException>(() => { new AxCryptFile().Encrypt(sourceFileInfo, nullFileInfo, new EncryptionParameters(new V1Aes128CryptoFactory().CryptoId, new Passphrase("axcrypt")), AxCryptOptions.EncryptWithCompression, new ProgressContext()); });
Assert.Throws <ArgumentNullException>(() => { new AxCryptFile().Encrypt(sourceFileInfo, destinationFileInfo, nullEncryptionParameters, AxCryptOptions.EncryptWithCompression, new ProgressContext()); });
Assert.Throws <ArgumentNullException>(() => { new AxCryptFile().Encrypt(sourceFileInfo, destinationFileInfo, new EncryptionParameters(new V1Aes128CryptoFactory().CryptoId, new Passphrase("axcrypt")), AxCryptOptions.EncryptWithCompression, nullProgress); });
Assert.Throws <ArgumentNullException>(() => { new AxCryptFile().Encrypt(nullFileInfo, new MemoryStream(), EncryptionParameters.Empty, AxCryptOptions.None, new ProgressContext()); });
Assert.Throws <ArgumentNullException>(() => { new AxCryptFile().Encrypt(sourceFileInfo, nullStream, EncryptionParameters.Empty, AxCryptOptions.None, new ProgressContext()); });
Assert.Throws <ArgumentNullException>(() => { new AxCryptFile().Encrypt(sourceFileInfo, new MemoryStream(), nullEncryptionParameters, AxCryptOptions.None, new ProgressContext()); });
Assert.Throws <ArgumentNullException>(() => { new AxCryptFile().Encrypt(sourceFileInfo, new MemoryStream(), EncryptionParameters.Empty, AxCryptOptions.None, nullProgress); });
using (FileLock fileInfoLock = New <FileLocker>().Acquire(New <IDataStore>(_testTextPath)))
{
Assert.Throws <ArgumentNullException>((TestDelegate)(() => { New <AxCryptFile>().Decrypt(nullDocument, fileInfoLock, AxCryptOptions.SetFileTimes, new ProgressContext()); }));
Assert.Throws <ArgumentNullException>((TestDelegate)(() => { New <AxCryptFile>().Decrypt(document, nullFileLock, AxCryptOptions.SetFileTimes, new ProgressContext()); }));
Assert.Throws <ArgumentNullException>((TestDelegate)(() => { New <AxCryptFile>().Decrypt(document, fileInfoLock, AxCryptOptions.SetFileTimes, nullProgress); }));
}
Assert.Throws <ArgumentNullException>((TestDelegate)(() => { New <AxCryptFile>().Decrypt(nullFileInfo, decryptedFileInfo, LogOnIdentity.Empty, AxCryptOptions.SetFileTimes, new ProgressContext()); }));
Assert.Throws <ArgumentNullException>((TestDelegate)(() => { New <AxCryptFile>().Decrypt(sourceFileInfo, nullFileInfo, LogOnIdentity.Empty, AxCryptOptions.SetFileTimes, new ProgressContext()); }));
Assert.Throws <ArgumentNullException>((TestDelegate)(() => { New <AxCryptFile>().Decrypt(sourceFileInfo, decryptedFileInfo, nullKey, AxCryptOptions.SetFileTimes, new ProgressContext()); }));
Assert.Throws <ArgumentNullException>((TestDelegate)(() => { New <AxCryptFile>().Decrypt(sourceFileInfo, decryptedFileInfo, LogOnIdentity.Empty, AxCryptOptions.SetFileTimes, nullProgress); }));
Assert.Throws <ArgumentNullException>((TestDelegate)(() => { New <AxCryptFile>().Decrypt(nullFileInfo, Path.Combine(_rootPath, "Directory"), LogOnIdentity.Empty, AxCryptOptions.SetFileTimes, new ProgressContext()); }));
Assert.Throws <ArgumentNullException>((TestDelegate)(() => { New <AxCryptFile>().Decrypt(sourceFileInfo, nullString, LogOnIdentity.Empty, AxCryptOptions.SetFileTimes, new ProgressContext()); }));
Assert.Throws <ArgumentNullException>((TestDelegate)(() => { New <AxCryptFile>().Decrypt(sourceFileInfo, Path.Combine(_rootPath, "Directory"), nullKey, AxCryptOptions.SetFileTimes, new ProgressContext()); }));
Assert.Throws <ArgumentNullException>((TestDelegate)(() => { New <AxCryptFile>().Decrypt(sourceFileInfo, Path.Combine(_rootPath, "Directory"), LogOnIdentity.Empty, AxCryptOptions.SetFileTimes, nullProgress); }));
Assert.Throws <ArgumentNullException>((TestDelegate)(() => { New <AxCryptFile>().Document(nullFileInfo, LogOnIdentity.Empty, new ProgressContext()); }));
Assert.Throws <ArgumentNullException>((TestDelegate)(() => { New <AxCryptFile>().Document(sourceFileInfo, nullKey, new ProgressContext()); }));
Assert.Throws <ArgumentNullException>((TestDelegate)(() => { New <AxCryptFile>().Document(sourceFileInfo, LogOnIdentity.Empty, nullProgress); }));
Assert.ThrowsAsync <ArgumentNullException>((async() => { await New <AxCryptFile>().EncryptToFileWithBackupAsync(null, async(Stream stream) => { await Task.Delay(0); }, new ProgressContext()); }));
using (FileLock fileInfoLock = New <FileLocker>().Acquire(New <IDataStore>(_testTextPath)))
{
Assert.ThrowsAsync <ArgumentNullException>((async() => { await New <AxCryptFile>().EncryptToFileWithBackupAsync(fileInfoLock, nullStreamAction, new ProgressContext()); }));
}
Assert.Throws <ArgumentNullException>(() => { AxCryptFile.MakeAxCryptFileName(nullFileInfo); });
Assert.Throws <ArgumentNullException>((TestDelegate)(() => { New <AxCryptFile>().Wipe(nullFileLock, new ProgressContext()); }));
}
public void TestDecryptWithoutLoadFirstFromEmptyFile()
{
using (V1AxCryptDocument document = new V1AxCryptDocument())
{
using (MemoryStream plaintextStream = new MemoryStream())
{
Assert.Throws <InternalErrorException>(() => { document.DecryptTo(plaintextStream); });
}
}
}
public void TestInvalidPassphraseWithSimpleFile()
{
Passphrase passphrase = new Passphrase("b");
using (V1AxCryptDocument document = new V1AxCryptDocument())
{
bool keyIsOk = document.Load(passphrase, new V1Aes128CryptoFactory().CryptoId, FakeDataStore.ExpandableMemoryStream(Resources.helloworld_key_a_txt));
Assert.That(keyIsOk, Is.False, "The passphrase provided is wrong!");
}
}
public void TestNoMagicGuidFound()
{
byte[] dummy = Encoding.ASCII.GetBytes("This is a string that generates some bytes, none of which will match the magic GUID");
Passphrase passphrase = new Passphrase("a");
using (V1AxCryptDocument document = new V1AxCryptDocument())
{
Assert.Throws <FileFormatException>(() => { document.Load(passphrase, new V1Aes128CryptoFactory().CryptoId, FakeDataStore.ExpandableMemoryStream(dummy)); }, "Calling with dummy data that does not contain a GUID.");
}
}
public void TestHmacCalculationFromSimpleFile()
{
Passphrase passphrase = new Passphrase("a");
using (V1AxCryptDocument document = new V1AxCryptDocument())
{
bool keyIsOk = document.Load(passphrase, new V1Aes128CryptoFactory().CryptoId, FakeDataStore.ExpandableMemoryStream(Resources.helloworld_key_a_txt));
Assert.That(keyIsOk, Is.True, "The passphrase provided is correct!");
document.DecryptTo(Stream.Null);
}
}
public void TestIsCompressedFromLargerFile()
{
Passphrase passphrase = new Passphrase("Å ä Ö");
using (V1AxCryptDocument document = new V1AxCryptDocument())
{
bool keyIsOk = document.Load(passphrase, new V1Aes128CryptoFactory().CryptoId, FakeDataStore.ExpandableMemoryStream(Resources.david_copperfield_key__aa_ae_oe__ulu_txt));
Assert.That(keyIsOk, Is.True, "The passphrase provided is correct!");
bool isCompressed = document.DocumentHeaders.IsCompressed;
Assert.That(isCompressed, Is.True, "This file should be compressed.");
}
}
public void TestIsCompressedFromSimpleFile()
{
Passphrase passphrase = new Passphrase("a");
using (V1AxCryptDocument document = new V1AxCryptDocument())
{
bool keyIsOk = document.Load(passphrase, new V1Aes128CryptoFactory().CryptoId, FakeDataStore.ExpandableMemoryStream(Resources.helloworld_key_a_txt));
Assert.That(keyIsOk, Is.True, "The passphrase provided is correct!");
bool isCompressed = document.DocumentHeaders.IsCompressed;
Assert.That(isCompressed, Is.False, "This file should not be compressed.");
}
}
public void TestHmacFromSimpleFile()
{
V1Hmac expectedHmac = new V1Hmac(new byte[] { 0xF9, 0xAF, 0x2E, 0x67, 0x7D, 0xCF, 0xC9, 0xFE, 0x06, 0x4B, 0x39, 0x08, 0xE7, 0x5A, 0x87, 0x81 });
Passphrase passphrase = new Passphrase("a");
using (V1AxCryptDocument document = new V1AxCryptDocument())
{
bool keyIsOk = document.Load(passphrase, new V1Aes128CryptoFactory().CryptoId, FakeDataStore.ExpandableMemoryStream(Resources.helloworld_key_a_txt));
Assert.That(keyIsOk, Is.True, "The passphrase provided is correct!");
Hmac hmac = document.DocumentHeaders.Headers.Hmac;
Assert.That(hmac.GetBytes(), Is.EqualTo(expectedHmac.GetBytes()), "Wrong HMAC");
}
}
public void TestInputStreamTooShort()
{
using (MemoryStream testStream = new MemoryStream())
{
byte[] guid = AxCrypt1Guid.GetBytes();
testStream.Write(guid, 0, guid.Length);
testStream.Position = 0;
using (V1AxCryptDocument document = new V1AxCryptDocument())
{
Assert.Throws <FileFormatException>(() => { document.Load(Passphrase.Empty, new V1Aes128CryptoFactory().CryptoId, testStream); }, "Calling with too short a stream, only containing a GUID.");
}
}
}
public void TestUnicodeFileNameFromSimpleFile()
{
using (Stream testStream = FakeDataStore.ExpandableMemoryStream(Resources.helloworld_key_a_txt))
{
Passphrase passphrase = new Passphrase("a");
using (V1AxCryptDocument document = new V1AxCryptDocument())
{
bool keyIsOk = document.Load(passphrase, new V1Aes128CryptoFactory().CryptoId, testStream);
Assert.That(keyIsOk, Is.True, "The passphrase provided is correct!");
string fileName = document.DocumentHeaders.FileName;
Assert.That(fileName, Is.EqualTo("HelloWorld-Key-a.txt"), "Wrong file name");
}
}
}
public void TestFailedHmacCalculationFromSimpleFile()
{
Passphrase passphrase = new Passphrase("a");
using (V1AxCryptDocument document = new V1AxCryptDocument())
{
bool keyIsOk = document.Load(passphrase, new V1Aes128CryptoFactory().CryptoId, FakeDataStore.ExpandableMemoryStream(Resources.helloworld_key_a_txt));
Assert.That(keyIsOk, Is.True, "The passphrase provided is correct!");
document.DocumentHeaders.Headers.Hmac = new V1Hmac(new byte[V1Hmac.RequiredLength]);
Assert.Throws <Axantum.AxCrypt.Core.Runtime.IncorrectDataException>(() =>
{
document.DecryptTo(Stream.Null);
});
}
}
public void TestDecryptWithKeyFilePdfFile()
{
Passphrase passphrase = Passphrase.Create("b", Resources.My_Key_File);
using (V1AxCryptDocument document = new V1AxCryptDocument())
{
bool keyIsOk = document.Load(passphrase, new V1Aes128CryptoFactory().CryptoId, FakeDataStore.ExpandableMemoryStream(Resources._2003_05_28_PcWorld_AxCrypt__b____My_Keyfile_pdf));
Assert.That(keyIsOk, Is.True, "The passphrase provided is correct!");
using (MemoryStream plaintextStream = new MemoryStream())
{
document.DecryptTo(plaintextStream);
Assert.That(plaintextStream.Length, Is.EqualTo(132498), "Wrong length of decrypted PDF");
}
}
}
public void TestDecryptWithKeyFileImageFile()
{
Passphrase passphrase = Passphrase.Create("a", Resources.My_Key_File);
using (V1AxCryptDocument document = new V1AxCryptDocument())
{
bool keyIsOk = document.Load(passphrase, new V1Aes128CryptoFactory().CryptoId, FakeDataStore.ExpandableMemoryStream(Resources.Foto_2015_05_19_23_19_08__a____My_Keyfile_jpg));
Assert.That(keyIsOk, Is.True, "The passphrase provided is correct!");
using (MemoryStream plaintextStream = new MemoryStream())
{
document.DecryptTo(plaintextStream);
Assert.That(plaintextStream.Length, Is.EqualTo(260053), "Wrong length of decrypted JPG");
}
}
}
public void TestReaderNotPositionedAtData()
{
MemoryStream encryptedFile = new MemoryStream(Resources.david_copperfield_key__aa_ae_oe__ulu_txt);
Headers headers = new Headers();
AxCryptReader reader = headers.CreateReader(new LookAheadStream(encryptedFile));
using (V1AxCryptDocument document = new V1AxCryptDocument(reader))
{
Passphrase key = new Passphrase("Å ä Ö");
bool keyIsOk = document.Load(key, new V1Aes128CryptoFactory().CryptoId, headers);
Assert.That(keyIsOk, Is.True);
reader.SetStartOfData();
Assert.Throws <InvalidOperationException>(() => document.DecryptTo(Stream.Null));
}
}
public void TestDecryptWithKeyFileShortTextFile()
{
Passphrase passphrase = Passphrase.Create("p", Resources.My_Key_File);
using (V1AxCryptDocument document = new V1AxCryptDocument())
{
bool keyIsOk = document.Load(passphrase, new V1Aes128CryptoFactory().CryptoId, FakeDataStore.ExpandableMemoryStream(Resources.Passphrase__p____My_Keyfile_txt));
Assert.That(keyIsOk, Is.True, "The passphrase provided is correct!");
using (MemoryStream plaintextStream = new MemoryStream())
{
document.DecryptTo(plaintextStream);
string text = Encoding.UTF8.GetString(plaintextStream.GetBuffer(), 0, (int)plaintextStream.Length);
Assert.That(text, Is.EqualTo("asdfasdfasdf"), "Unexpected content of file.");
}
}
}
public void TestDecryptUncompressedFromSimpleFile()
{
Passphrase passphrase = new Passphrase("a");
using (V1AxCryptDocument document = new V1AxCryptDocument())
{
bool keyIsOk = document.Load(passphrase, new V1Aes128CryptoFactory().CryptoId, FakeDataStore.ExpandableMemoryStream(Resources.helloworld_key_a_txt));
Assert.That(keyIsOk, Is.True, "The passphrase provided is correct!");
using (MemoryStream plaintextStream = new MemoryStream())
{
document.DecryptTo(plaintextStream);
Assert.That(Encoding.ASCII.GetString(plaintextStream.GetBuffer(), 0, (int)plaintextStream.Length), Is.EqualTo("HelloWorld"), "Unexpected result of decryption.");
Assert.That(document.DocumentHeaders.PlaintextLength, Is.EqualTo(10), "'HelloWorld' should be 10 bytes uncompressed plaintext.");
}
}
}
public void TestUncompressedEncryptedDecryptAxCrypt17()
{
IDataStore sourceRuntimeFileInfo = New <IDataStore>(_uncompressedAxxPath);
IDataStore destinationRuntimeFileInfo = New <IDataStore>(Path.Combine(Path.GetDirectoryName(_uncompressedAxxPath), "Uncompressed.zip"));
Passphrase passphrase = new Passphrase("Uncompressable");
using (V1AxCryptDocument document = new V1AxCryptDocument())
{
bool isOk = document.Load(passphrase, new V1Aes128CryptoFactory().CryptoId, sourceRuntimeFileInfo.OpenRead());
Assert.That(isOk, Is.True, "The document should load ok.");
using (FileLock destinationFileLock = New <FileLocker>().Acquire(destinationRuntimeFileInfo))
{
New <AxCryptFile>().Decrypt(document, destinationFileLock, AxCryptOptions.None, new ProgressContext());
}
Assert.That(document.DocumentHeaders.UncompressedLength, Is.EqualTo(0), "Since the data is not compressed, there should not be a CompressionInfo, but in 1.x there is, with value zero.");
}
}
public void TestDecryptAfterFailedLoad()
{
using (Stream testStream = new MemoryStream())
{
AxCrypt1Guid.Write(testStream);
testStream.Position = 0;
Passphrase passphrase = new Passphrase("Å ä Ö");
using (V1AxCryptDocument document = new V1AxCryptDocument())
{
Assert.Throws <FileFormatException>(() => { document.Load(passphrase, new V1Aes128CryptoFactory().CryptoId, testStream); });
using (MemoryStream plaintextStream = new MemoryStream())
{
Assert.Throws <InternalErrorException>(() => { document.DecryptTo(plaintextStream); });
}
}
}
}
public void TestFileTimesFromSimpleFile()
{
Passphrase passphrase = new Passphrase("a");
using (V1AxCryptDocument document = new V1AxCryptDocument())
{
bool keyIsOk = document.Load(passphrase, new V1Aes128CryptoFactory().CryptoId, FakeDataStore.ExpandableMemoryStream(Resources.helloworld_key_a_txt));
Assert.That(keyIsOk, Is.True, "The passphrase provided is correct!");
string creationTime = document.DocumentHeaders.CreationTimeUtc.ToString(CultureInfo.InvariantCulture);
Assert.That(creationTime, Is.EqualTo("01/13/2012 17:17:18"), "Checking creation time.");
string lastAccessTime = document.DocumentHeaders.LastAccessTimeUtc.ToString(CultureInfo.InvariantCulture);
Assert.That(lastAccessTime, Is.EqualTo("01/13/2012 17:17:18"), "Checking last access time.");
string lastWriteTime = document.DocumentHeaders.LastWriteTimeUtc.ToString(CultureInfo.InvariantCulture);
Assert.That(lastWriteTime, Is.EqualTo("01/13/2012 17:17:45"), "Checking last modify time.");
}
}
public void TestDecryptCompressedFromLegacy0B6()
{
Passphrase passphrase = new Passphrase("åäö");
using (V1AxCryptDocument document = new V1AxCryptDocument())
{
bool keyIsOk = document.Load(passphrase, new V1Aes128CryptoFactory().CryptoId, FakeDataStore.ExpandableMemoryStream(Resources.tst_0_0b6_key__aaaeoe__medium_html));
Assert.That(keyIsOk, Is.True, "A correct passphrase was provided, but it was not accepted.");
Assert.That(document.DocumentHeaders.IsCompressed, Is.True, "The file is compressed.");
Assert.That(document.DocumentHeaders.FileName, Is.EqualTo("readme.html"), "The file name should be 'readme.html'.");
using (MemoryStream plaintextStream = new MemoryStream())
{
document.DecryptTo(plaintextStream);
Assert.That(document.DocumentHeaders.PlaintextLength, Is.EqualTo(3736), "The compressed content should be recorded as 3736 bytes in the headers.");
Assert.That(plaintextStream.Length, Is.EqualTo(9528), "The file should be 9528 bytes uncompressed plaintext in actual fact.");
}
}
}
public void TestDecryptCompressedWithTruncatedFile()
{
Passphrase passphrase = new Passphrase("Å ä Ö");
using (V1AxCryptDocument document = new V1AxCryptDocument())
{
using (MemoryStream encryptedFile = FakeDataStore.ExpandableMemoryStream(Resources.david_copperfield_key__aa_ae_oe__ulu_txt))
{
encryptedFile.SetLength(encryptedFile.Length / 2);
encryptedFile.Position = 0;
bool keyIsOk = document.Load(passphrase, new V1Aes128CryptoFactory().CryptoId, encryptedFile);
Assert.That(keyIsOk, Is.True, "The passphrase provided is correct!");
using (MemoryStream plaintextStream = new MemoryStream())
{
Assert.That(() => { document.DecryptTo(plaintextStream); }, Throws.InstanceOf <Exception>());
}
}
}
}
public void TestDecryptCompressedFromLargerFile()
{
Passphrase passphrase = new Passphrase("Å ä Ö");
using (V1AxCryptDocument document = new V1AxCryptDocument())
{
bool keyIsOk = document.Load(passphrase, new V1Aes128CryptoFactory().CryptoId, FakeDataStore.ExpandableMemoryStream(Resources.david_copperfield_key__aa_ae_oe__ulu_txt));
Assert.That(keyIsOk, Is.True, "The passphrase provided is correct!");
using (MemoryStream plaintextStream = new MemoryStream())
{
document.DecryptTo(plaintextStream);
string text = Encoding.UTF8.GetString(plaintextStream.GetBuffer(), 0, (int)plaintextStream.Length);
Assert.That(text.StartsWith("The Project Gutenberg EBook of David Copperfield, by Charles Dickens"), "Unexpected start of David Copperfield.");
Assert.That(text.EndsWith("subscribe to our email newsletter to hear about new eBooks." + (Char)13 + (Char)10), "Unexpected end of David Copperfield.");
Assert.That(text.Length, Is.EqualTo(1992490), "Wrong length of full text of David Copperfield.");
Assert.That(document.DocumentHeaders.PlaintextLength, Is.EqualTo(795855), "Wrong expected length of compressed text of David Copperfield.");
}
}
}
public void TestDecryptCompressedWithCancel()
{
Passphrase passphrase = new Passphrase("Å ä Ö");
using (V1AxCryptDocument document = new V1AxCryptDocument())
{
IProgressContext progress = new CancelProgressContext(new ProgressContext(new TimeSpan(0, 0, 0, 0, 100)));
bool keyIsOk = document.Load(passphrase, new V1Aes128CryptoFactory().CryptoId, new ProgressStream(FakeDataStore.ExpandableMemoryStream(Resources.david_copperfield_key__aa_ae_oe__ulu_txt), progress));
Assert.That(keyIsOk, Is.True, "The passphrase provided is correct!");
using (MemoryStream plaintextStream = new MemoryStream())
{
progress.Progressing += (object sender, ProgressEventArgs e) =>
{
progress.Cancel = true;
};
FakeRuntimeEnvironment environment = (FakeRuntimeEnvironment)OS.Current;
environment.CurrentTiming.CurrentTiming = new TimeSpan(0, 0, 0, 0, 100);
Assert.Throws <OperationCanceledException>(() => { document.DecryptTo(plaintextStream); });
}
}
}
public void TestSimpleEncryptToWithoutCompression()
{
DateTime creationTimeUtc = new DateTime(2012, 1, 1, 1, 2, 3, DateTimeKind.Utc);
DateTime lastAccessTimeUtc = creationTimeUtc + new TimeSpan(1, 0, 0);
DateTime lastWriteTimeUtc = creationTimeUtc + new TimeSpan(2, 0, 0);;
using (Stream inputStream = FakeDataStore.ExpandableMemoryStream(Encoding.UTF8.GetBytes("AxCrypt is Great!")))
{
using (Stream outputStream = new MemoryStream())
{
Passphrase passphrase = new Passphrase("a");
using (V1AxCryptDocument document = new V1AxCryptDocument(passphrase, 53))
{
document.DocumentHeaders.FileName = "MyFile.txt";
document.DocumentHeaders.CreationTimeUtc = creationTimeUtc;
document.DocumentHeaders.LastAccessTimeUtc = lastAccessTimeUtc;
document.DocumentHeaders.LastWriteTimeUtc = lastWriteTimeUtc;
document.EncryptTo(inputStream, outputStream, AxCryptOptions.EncryptWithoutCompression);
}
outputStream.Position = 0;
using (V1AxCryptDocument document = new V1AxCryptDocument())
{
bool keyIsOk = document.Load(passphrase, new V1Aes128CryptoFactory().CryptoId, outputStream);
Assert.That(keyIsOk, Is.True, "The passphrase provided is correct!");
Assert.That(document.DocumentHeaders.FileName, Is.EqualTo("MyFile.txt"));
Assert.That(document.DocumentHeaders.CreationTimeUtc, Is.EqualTo(creationTimeUtc));
Assert.That(document.DocumentHeaders.LastAccessTimeUtc, Is.EqualTo(lastAccessTimeUtc));
Assert.That(document.DocumentHeaders.LastWriteTimeUtc, Is.EqualTo(lastWriteTimeUtc));
using (MemoryStream plaintextStream = new MemoryStream())
{
document.DecryptTo(plaintextStream);
Assert.That(document.DocumentHeaders.UncompressedLength, Is.EqualTo(-1), "'AxCrypt is Great!' should not return a value at all for uncompressed, since it was not compressed.");
Assert.That(document.DocumentHeaders.PlaintextLength, Is.EqualTo(17), "'AxCrypt is Great!' is 17 bytes plaintext length.");
Assert.That(Encoding.ASCII.GetString(plaintextStream.GetBuffer(), 0, (int)plaintextStream.Length), Is.EqualTo("AxCrypt is Great!"), "Unexpected result of decryption.");
}
}
}
}
}