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 GetFilenameTest()
{
// 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 = "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
string rtFilename = fes.GetFilename(derivedKey);
// Assert
Assert.AreEqual(filename, rtFilename);
}
public void SetFilenameTest()
{
// 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);
string filename1 = "another_backup.zip";
// Act
bool shouldBeTrue = fes.SetFilename(filename1, derivedKey);
string filename2 = fes.GetFilename(derivedKey);
bool shouldBeFalse = fes.SetFilename(filename1, new byte[] { 1, 2, 3 });
// Assert
Assert.IsTrue(shouldBeTrue);
Assert.IsFalse(shouldBeFalse);
Assert.IsFalse(string.IsNullOrEmpty(filename2));
Assert.AreEqual(filename1, filename2);
}
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();
}
