public EditViewFileViewModel(FileEntrySecret current, byte[] derivedPassword, int zeroBasedIndexNumber, List <string> keyIds, Action positiveAction, Action negativeAction, Action <int /* zeroBasedIndexNumber */, bool /* isNowSecure */, bool /* Was Security Modified */, string /* Key identifier */> edit)
{
this.KeyIdentifiers = new ObservableCollection <string>();
foreach (string keyIdentifier in keyIds)
{
this.KeyIdentifiers.Add(keyIdentifier);
}
if (keyIds.Count > 0)
{
this.SelectedKeyIdentifier = keyIds[0];
}
this.onPositiveClose = positiveAction;
this.onNegativeClose = negativeAction;
this.editFile = edit;
this.currentFileEntrySecret = current;
this.derivedPassword = derivedPassword;
this.zeroBasedIndexNumber = zeroBasedIndexNumber;
this.wasOriginallySecret = true;
this.IsSecret = true;
this.Filename = currentFileEntrySecret.GetFilename(this.derivedPassword);
}
public void DeepCopyTest()
{
// Arrange
byte[] derivedKey = new byte[16] {
111, 222, 31, 4, 5, 6, 1, 82, 93, 102, 112, 120, 103, 104, 15, 16
};
byte[] initialCounter = new byte[] { 0xf0, 0xf1, 0xfb, 0x13, 0xaa, 0xf5, 0x36, 0xbb, 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff };
SettingsAES_CTR settingsAES_CTR = new SettingsAES_CTR(initialCounter);
SymmetricKeyAlgorithm skaAES_CTR = new SymmetricKeyAlgorithm(SymmetricEncryptionAlgorithm.AES_CTR, 128, settingsAES_CTR);
string filename = "nic2e.pdf";
byte[] fileContent = new byte[] { 1, 2, 3, 1, 2, byte.MaxValue, 0, 0, 0, 0, 0, 0, 23, 34, 33, 22, 222, 111 };
FileEntry fe = new FileEntry(filename, fileContent);
FileEntrySecret fes = new FileEntrySecret(fe, "does not matter", skaAES_CTR, derivedKey);
// Act
FileEntrySecret fesCopy = new FileEntrySecret(fes);
string filenameInCopy = fesCopy.GetFilename(derivedKey);
// Assert
Assert.IsFalse(string.IsNullOrEmpty(filenameInCopy));
Assert.AreEqual(filename, filenameInCopy);
Assert.AreNotSame(fes.audalfData, fesCopy.audalfData, "AUDALF byte arrays should be in different memory locations");
CollectionAssert.AreEqual(fes.keyIdentifier, fesCopy.keyIdentifier);
Assert.AreNotSame(fes.keyIdentifier, fesCopy.keyIdentifier, "Key identifier byte arrays should be in different memory locations");
Assert.AreEqual(fes.checksum, fesCopy.checksum);
}
public void GetFileEntryTest()
{
// Arrange
byte[] derivedKey = new byte[16] {
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16
};
byte[] initialCounter = new byte[] { 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff };
SettingsAES_CTR settingsAES_CTR = new SettingsAES_CTR(initialCounter);
SymmetricKeyAlgorithm skaAES_CTR = new SymmetricKeyAlgorithm(SymmetricEncryptionAlgorithm.AES_CTR, 128, settingsAES_CTR);
string filename = "ni12ce.pdf";
byte[] fileContent = new byte[] { 1, 2, 32, 11, 2, byte.MaxValue, 0, 0, 2, 34, 45, 0, 0, 0, 0 };
FileEntry fe = new FileEntry(filename, fileContent);
FileEntrySecret fes = new FileEntrySecret(fe, "does not matter", skaAES_CTR, derivedKey);
// Act
FileEntry feCopy = fes.GetFileEntry(derivedKey);
// Assert
Assert.IsTrue(ComparisonHelper.AreFileEntriesEqual(fe, feCopy));
Assert.AreEqual(fe.creationTime, feCopy.creationTime);
Assert.AreEqual(fe.modificationTime, feCopy.modificationTime);
}
public void SetFileContentTest()
{
// Arrange
byte[] derivedKey = new byte[16] {
111, 222, 31, 4, 5, 6, 7, 8, 98, 10, 11, 12, 131, 104, 15, 16
};
SymmetricKeyAlgorithm ska = SymmetricKeyAlgorithm.GenerateNew(SymmetricEncryptionAlgorithm.AES_CTR);
string filename = "backup.zip";
byte[] fileContent = Encoding.UTF8.GetBytes("peace, happiness, freedom and something...");
FileEntry fileEntry = new FileEntry(filename, fileContent);
FileEntrySecret fes = new FileEntrySecret(fileEntry, "does not matter", ska, derivedKey);
byte[] fileContent1 = Encoding.UTF8.GetBytes("this is a wrong backup for this situation");
// Act
bool shouldBeTrue = fes.SetFileContent(fileContent1, derivedKey);
byte[] fileContent2 = fes.GetFileContent(derivedKey);
bool shouldBeFalse = fes.SetFileContent(fileContent1, new byte[] { 1, 2, 3 });
// Assert
Assert.IsTrue(shouldBeTrue);
Assert.IsFalse(shouldBeFalse);
CollectionAssert.AreEqual(fileContent1, fileContent2);
}
public void ChecksumSurvivesRoundtrip()
{
// Arrange
byte[] derivedKey = new byte[16] {
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 255
};
byte[] initialCounter = new byte[] { 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff };
SettingsAES_CTR settingsAES_CTR = new SettingsAES_CTR(initialCounter);
SymmetricKeyAlgorithm skaAES_CTR = new SymmetricKeyAlgorithm(SymmetricEncryptionAlgorithm.AES_CTR, 128, settingsAES_CTR);
string filename = "nice.pdf";
byte[] fileContent = new byte[] { 1, 2, 3, 1, 2, byte.MaxValue, 0, 0, 0, 0, 0, 0 };
FileEntry fe = new FileEntry(filename, fileContent);
FileEntrySecret fes1 = new FileEntrySecret(fe, "does not matter", skaAES_CTR, derivedKey);
// Act
string checksum1 = fes1.GetChecksumAsHex();
string json = JsonConvert.SerializeObject(fes1, Formatting.Indented);
FileEntrySecret fes2 = JsonConvert.DeserializeObject <FileEntrySecret>(json);
// Assert
Assert.AreEqual(64, checksum1.Length);
Assert.AreEqual(checksum1, fes2.GetChecksumAsHex());
}
public void GetKeyIdentifierTest()
{
// Arrange
byte[] derivedKey = new byte[16] {
111, 222, 31, 47, 25, 138, 78, 83, 111, 110, 221, 18, 213, 104, 15, 16
};
byte[] initialCounter = new byte[] { 0xa0, 0xb1, 0xcb, 0xcd, 0xaa, 0xc5, 0x13, 0xb5, 0x58, 0x59, 0x13, 0x2b, 0x33, 0xfd, 0xfe, 0xff };
SettingsAES_CTR settingsAES_CTR = new SettingsAES_CTR(initialCounter);
SymmetricKeyAlgorithm skaAES_CTR = new SymmetricKeyAlgorithm(SymmetricEncryptionAlgorithm.AES_CTR, 256, settingsAES_CTR);
string keyIdentifier = "primary";
string filename = "nice.pdf";
byte[] fileContent = new byte[] { 1, 2, 3, 1, 2, byte.MaxValue, 0, 0, 0, 0, 0, 0 };
FileEntry fe = new FileEntry(filename, fileContent);
// Act
FileEntrySecret fes = new FileEntrySecret(fe, keyIdentifier, skaAES_CTR, derivedKey);
// Assert
Assert.AreEqual(keyIdentifier, fes.GetKeyIdentifier());
}
public void CanBeDecryptedWithDerivedPassword()
{
byte[] derivedKey1 = new byte[16] {
111, 222, 36, 47, 75, 168, 78, 13, 61, 118, 221, 18, 213, 104, 15, 16
};
byte[] derivedKey2 = new byte[16] {
111, 222, 36, 47, 75, 168, 78, 13, 61, 118, 221, 18, 213, 104, 15, 15
};
byte[] initialCounter = new byte[] { 0xa7, 0xb1, 0xcb, 0xcd, 0xaa, 0xc5, 0xd3, 0xb5, 0x58, 0x51, 0x95, 0x2b, 0x33, 0xfd, 0xfe, 0xff };
SettingsAES_CTR settingsAES_CTR = new SettingsAES_CTR(initialCounter);
SymmetricKeyAlgorithm skaAES_CTR = new SymmetricKeyAlgorithm(SymmetricEncryptionAlgorithm.AES_CTR, 256, settingsAES_CTR);
string keyIdentifier = "primary";
string filename = "nice.pdf";
byte[] fileContent = new byte[] { 1, 2, 3, 100, 222, 1, 2, byte.MaxValue, 0, 0, 0, 0, 0, 0 };
FileEntry fe = new FileEntry(filename, fileContent);
// Act
FileEntrySecret fes = new FileEntrySecret(fe, keyIdentifier, skaAES_CTR, derivedKey1);
// Assert
Assert.IsTrue(fes.CanBeDecryptedWithDerivedPassword(derivedKey1));
Assert.IsFalse(fes.CanBeDecryptedWithDerivedPassword(null));
Assert.IsFalse(fes.CanBeDecryptedWithDerivedPassword(new byte[] {}));
Assert.IsFalse(fes.CanBeDecryptedWithDerivedPassword(derivedKey2));
}
public void ConstructorTest()
{
// Arrange
byte[] derivedKey = new byte[16] {
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16
};
byte[] initialCounter = new byte[] { 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff };
SettingsAES_CTR settingsAES_CTR = new SettingsAES_CTR(initialCounter);
SymmetricKeyAlgorithm skaAES_CTR = new SymmetricKeyAlgorithm(SymmetricEncryptionAlgorithm.AES_CTR, 128, settingsAES_CTR);
Dictionary <string, object> testDictionary = new Dictionary <string, object>()
{
{ FileEntry.filenameKey, "filename.txt" }
};
FileEntrySecret fes = new FileEntrySecret(testDictionary, "does not matter", skaAES_CTR, derivedKey);
// Act
// Assert
Assert.IsNotNull(fes);
Assert.IsNotNull(fes.audalfData);
}
public void GetModificationTimeTest()
{
// Arrange
byte[] derivedKey = new byte[16] {
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 255
};
byte[] initialCounter = new byte[] { 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff };
SettingsAES_CTR settingsAES_CTR = new SettingsAES_CTR(initialCounter);
SymmetricKeyAlgorithm skaAES_CTR = new SymmetricKeyAlgorithm(SymmetricEncryptionAlgorithm.AES_CTR, 128, settingsAES_CTR);
string filename = "nice.pdf";
byte[] fileContent = new byte[] { 1, 2, 3, 1, 2, byte.MaxValue, 0, 0, 0, 0, 0, 0 };
FileEntry fe = new FileEntry(filename, fileContent);
FileEntrySecret fes = new FileEntrySecret(fe, "does not matter", skaAES_CTR, derivedKey);
// Act
DateTimeOffset fileEntryModificationTime1 = fes.GetModificationTime(derivedKey);
Thread.Sleep(1100);
fes.SetFilename("much_nicer.pdf", derivedKey);
DateTimeOffset fileEntryModificationTime2 = fes.GetModificationTime(derivedKey);
// Assert
Assert.Greater(fileEntryModificationTime2, fileEntryModificationTime1);
}
public void GetFileContentLengthInBytes()
{
// Arrange
byte[] derivedKey = new byte[16] {
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 255
};
byte[] initialCounter = new byte[] { 0x40, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0x38, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff };
SettingsAES_CTR settingsAES_CTR = new SettingsAES_CTR(initialCounter);
SymmetricKeyAlgorithm skaAES_CTR = new SymmetricKeyAlgorithm(SymmetricEncryptionAlgorithm.AES_CTR, 128, settingsAES_CTR);
string filename = "nice232fwf.pdf";
byte[] fileContent = new byte[] { 1, 2, 3, 1, 2, byte.MaxValue, 0, 0, 0, 0, 0, 0, 4, 5, 6, 7, 8, 9, 33, 44, 55, 66, 77 };
FileEntry fe = new FileEntry(filename, fileContent);
FileEntrySecret fes = new FileEntrySecret(fe, "does not matter", skaAES_CTR, derivedKey);
// Act
long fileContentLength = fes.GetFileContentLengthInBytes(derivedKey);
// Assert
Assert.AreEqual(fileContent.LongLength, fileContentLength);
}
public void GetFileContentTest()
{
// Arrange
byte[] derivedKey = new byte[16] {
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 255
};
byte[] initialCounter = new byte[] { 0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7, 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xff };
SettingsAES_CTR settingsAES_CTR = new SettingsAES_CTR(initialCounter);
SymmetricKeyAlgorithm skaAES_CTR = new SymmetricKeyAlgorithm(SymmetricEncryptionAlgorithm.AES_CTR, 128, settingsAES_CTR);
string filename = "nice.pdf";
byte[] fileContent = new byte[] { 1, 2, 3, 1, 2, byte.MaxValue, 0, 0, 0, 0, 0, 0 };
FileEntry fe = new FileEntry(filename, fileContent);
FileEntrySecret fes = new FileEntrySecret(fe, "does not matter", skaAES_CTR, derivedKey);
// Act
byte[] rtFileContent = fes.GetFileContent(derivedKey);
// Assert
CollectionAssert.AreEqual(fileContent, rtFileContent);
}
private void EditFileInCollection(int zeroBasedIndexNumber, bool isNowSecure, bool wasSecurityModified, string keyIdentifier)
{
if (wasSecurityModified)
{
// If file jumps from secure <-> unsecure
if (isNowSecure)
{
this.csc.AddFileEntrySecret(this.derivedPasswords[keyIdentifier], this.csc.files[zeroBasedIndexNumber], keyIdentifier);
this.csc.files.RemoveAt(zeroBasedIndexNumber);
}
else
{
FileEntrySecret fes = this.csc.fileSecrets[zeroBasedIndexNumber];
byte[] derivedPassword = derivedPasswords[fes.GetKeyIdentifier()];
FileEntry tempFileEntry = new FileEntry(fes.GetFilename(derivedPassword), fes.GetFileContent(derivedPassword));
this.csc.fileSecrets.RemoveAt(zeroBasedIndexNumber);
this.csc.files.Add(tempFileEntry);
}
}
else
{
if (isNowSecure)
{
// TODO: support key change
}
}
// Editing a file modifies the structure
this.isModified = true;
this.UpdateMainTitle(this.filePath != null ? this.filePath : untitledTempName);
this.GenerateFileSimplifiedsFromCommonSecrets();
}
public EditViewFileWindow(FileEntrySecret current, byte[] derivedPassword, int zeroBasedIndexNumber, List <string> keyIdentifiers, Action <int /* zeroBasedIndexNumber */, bool /* isNowSecure */, bool /* Was Security Modified */, string /* Key identifier */> editFile)
{
InitializeComponent();
DataContext = new EditViewFileViewModel(current, derivedPassword, zeroBasedIndexNumber, keyIdentifiers, EditClose, CancelClose, editFile);
}
public static bool AreFileEntrySecretsEqual(FileEntrySecret fileEntrySecret1, FileEntrySecret fileEntrySecret2)
{
return(StructuralComparisons.StructuralEqualityComparer.Equals(fileEntrySecret1.audalfData, fileEntrySecret2.audalfData) && AreSymmetricKeyAlgorithmsEqual(fileEntrySecret1.algorithm, fileEntrySecret2.algorithm));
}
