public void InitializeFull(ConsoleEx consoleEx, HelixFileVersion fileVersion = null)
{
PreInitializationCheck();
//Initialize Encr Directory
consoleEx?.WriteLine(VerbosityLevel.Detailed, 0, "Initializing Encrypted Directory...");
Header = DirectoryHeader.New();
EncrDirectory.Create();
if (WhatIf)
{
EncrDirectory.WhatIfAddFile(HelixConsts.HeaderFileName, 10);
}
else
{
Header.Save(EncrDirectory.PathFull(HelixConsts.HeaderFileName), DerivedBytesProvider, fileVersion);
EncrDirectory.RefreshEntry(HelixConsts.HeaderFileName);
}
this.FileNameEncoder = new FileNameEncoder(Header.FileNameKey);
consoleEx?.WriteLine(VerbosityLevel.Detailed, 1, "Encrypted Directory Initialized (" + Header.DirectoryId.Substring(0, 6) + "...)");
InitializeDecr(consoleEx);
}
public void Initialize(DerivedBytesProvider derivedBytesProvider, Action <Dictionary <string, byte[]> > afterHeaderRead = null)
{
if (derivedBytesProvider == null)
{
throw new ArgumentNullException(nameof(derivedBytesProvider));
}
//header
//FileDesignator (8 bytes) + passwordSalt (32 bytes) + hmac salt (32 bytes) + iv (32 bytes)
FileHeader header = new FileHeader();
StreamRead(streamIn, header.fileDesignator);
StreamRead(streamIn, header.passwordSalt);
StreamRead(streamIn, header.hmacSalt);
StreamRead(streamIn, header.iv);
StreamRead(streamIn, header.headerAuthnDisk);
afterHeaderRead?.Invoke(header.ToDictionary());
FileVersion = HelixFileVersion.GetVersion(header.fileDesignator);
if (FileVersion == null)
{
throw new FileDesignatorException("Invalid file format, file designator not correct");
}
DerivedBytes = derivedBytesProvider.GetDerivedBytes(header.passwordSalt, FileVersion.DerivedBytesIterations);
byte[] headerBytes = header.GetBytesToHash();
byte[] hmacFullKey = ByteBlock.ConcatenateBytes(header.hmacSalt, DerivedBytes.Key);
hmacHash = new HMACSHA256(hmacFullKey);
//Validate Header HMAC
byte[] headerAuthnComputed = hmacHash.ComputeHash(headerBytes);
if (!ByteBlock.Equals(header.headerAuthnDisk, headerAuthnComputed))
{
throw new HMACAuthenticationException("Header HMAC Authentication Failed");
}
hmacTransform = new HMACDecrypt(headerAuthnComputed, hmacHash);
hmacStream = new CryptoStream2(streamIn, hmacTransform, CryptoStreamMode.Read);
aesTransform = Aes.Create();
aesTransform.KeySize = 256;
aesTransform.BlockSize = 128;
aesTransform.Mode = CipherMode.CBC;
aesTransform.Padding = PaddingMode.PKCS7;
aesTransform.IV = header.iv;
aesTransform.Key = DerivedBytes.Key;
aesStream = new CryptoStream2(hmacStream, aesTransform.CreateDecryptor(), CryptoStreamMode.Read);
gzipStream = new GZipStream(aesStream, CompressionMode.Decompress, true);
initialized = true;
}
public HelixFileEncryptor(Stream streamOut, DerivedBytesProvider derivedBytesProvider, HelixFileVersion fileVersion = null)
{
if (streamOut == null)
{
throw new ArgumentNullException(nameof(streamOut));
}
if (!streamOut.CanWrite)
{
throw new ArgumentException("streamOut must be writable", nameof(streamOut));
}
if (derivedBytesProvider == null)
{
throw new ArgumentNullException(nameof(derivedBytesProvider));
}
this.FileVersion = fileVersion ?? HelixFileVersion.Default;
this.StreamOut = streamOut;
this.DerivedBytes = derivedBytesProvider.GetDerivedBytes(FileVersion.DerivedBytesIterations);
}
public void Save(string filePath, DerivedBytesProvider derivedBytesProvider, HelixFileVersion fileVersion = null)
{
if (string.IsNullOrEmpty(filePath))
{
throw new ArgumentNullException(nameof(filePath));
}
if (derivedBytesProvider == null)
{
throw new ArgumentNullException(nameof(derivedBytesProvider));
}
FileVersion = fileVersion ?? HelixFileVersion.Default;
using Stream streamOut = File.Open(filePath, FileMode.Create, FileAccess.Write);
using HelixFileEncryptor encryptor = new HelixFileEncryptor(streamOut, derivedBytesProvider, fileVersion);
encryptor.WriteHeader(Header);
var contentSerialized = JsonConvert.SerializeObject(this);
encryptor.WriteContent(contentSerialized);
}
public MultiBlockEncryptor(Stream streamOut, DerivedBytes derivedBytes, HelixFileVersion fileVersion)
: base(new AuthenticatedEncryptor(streamOut, derivedBytes, fileVersion))
{
}
public AuthenticatedEncryptor(Stream streamOut, DerivedBytes derivedBytes, HelixFileVersion hxVersion, byte[] hmacSalt = null, byte[] iv = null)
{
if (derivedBytes == null)
{
throw new ArgumentNullException(nameof(derivedBytes));
}
if (hxVersion == null)
{
throw new ArgumentNullException(nameof(hxVersion));
}
if (hmacSalt != null && hmacSalt.Length != HelixConsts.HMACSaltSize)
{
throw new ArgumentOutOfRangeException(nameof(hmacSalt));
}
if (iv != null && iv.Length != HelixConsts.IVSize)
{
throw new ArgumentOutOfRangeException(nameof(iv));
}
using (var random = RandomNumberGenerator.Create())
{
if (hmacSalt == null)
{
hmacSalt = new byte[HelixConsts.HMACSaltSize];
random.GetBytes(hmacSalt);
}
if (iv == null)
{
iv = new byte[HelixConsts.IVSize];
random.GetBytes(iv);
}
}
FileHeader header = new FileHeader
{
fileDesignator = hxVersion.FileDesignator,
passwordSalt = derivedBytes.Salt,
hmacSalt = hmacSalt,
iv = iv,
};
byte[] hmacFullKey = ByteBlock.ConcatenateBytes(hmacSalt, derivedBytes.Key);
this.streamOut = streamOut ?? throw new ArgumentNullException(nameof(streamOut));
byte[] bytesToHash = header.GetBytesToHash();
streamOut.Write(bytesToHash, 0, bytesToHash.Length);
hmacHash = new HMACSHA256(hmacFullKey);
header.headerAuthnDisk = hmacHash.ComputeHash(header.GetBytesToHash());
streamOut.Write(header.headerAuthnDisk, 0, header.headerAuthnDisk.Length);
hmacTransform = new HMACEncrypt(header.headerAuthnDisk, hmacHash);
hmacStream = new CryptoStream(streamOut, hmacTransform, CryptoStreamMode.Write);
aesTransform = Aes.Create();
aesTransform.KeySize = 256;
aesTransform.BlockSize = 128;
aesTransform.Mode = CipherMode.CBC;
aesTransform.Padding = PaddingMode.PKCS7;
aesTransform.IV = iv;
aesTransform.Key = derivedBytes.Key;
aesStream = new CryptoStream(hmacStream, aesTransform.CreateEncryptor(), CryptoStreamMode.Write);
gzipStream = new GZipStream(aesStream, CompressionMode.Compress, true);
}
public static DirectoryPair Open(string decrDirectoryPath, string encrDirectoryPath, DerivedBytesProvider derivedBytesProvider, bool initialize = false, HelixFileVersion fileVersion = null)
{
if (derivedBytesProvider == null)
{
throw new ArgumentNullException(nameof(derivedBytesProvider));
}
DirectoryPair pair = new DirectoryPair(decrDirectoryPath, encrDirectoryPath, derivedBytesProvider, false);
if (initialize && pair.InitializeFullNeeded())
{
pair.InitializeFull(null, fileVersion);
}
pair.OpenEncr(null);
if (initialize && pair.InitializeDecrNeeded())
{
pair.InitializeDecr(null);
}
pair.OpenDecr(null);
return(pair);
}
public static SyncSummary Sync(SyncOptions options, ConsoleEx consoleEx = null, HelixFileVersion fileVersion = null)
{
var sum = new SyncSummary();
consoleEx ??= new ConsoleEx();
consoleEx.Verbosity = options.Verbosity;
consoleEx.WriteLine("Sync");
if (options.WhatIf)
{
consoleEx.WriteLine("..Options: WhatIf");
}
consoleEx.WriteLine($"..DecrDir: {options.DecrDirectory}");
consoleEx.WriteLine($"..EncrDir: {options.EncrDirectory}");
//consoleEx.WriteLine($"..Direction: {options.Direction}");
consoleEx.WriteLine($"..Verbosity: {options.Verbosity}");
consoleEx.WriteLine();
if (options.WhatIf)
{
consoleEx.WriteLine("** WhatIf Mode - No Changes Made **");
consoleEx.WriteLine("");
}
DerivedBytesProvider derivedBytesProvider = DerivedBytesProvider.FromPassword(options.Password, options.KeyFile);
using DirectoryPair pair = new DirectoryPair(options.DecrDirectory, options.EncrDirectory, derivedBytesProvider, options.WhatIf);
pair.PreInitializationCheck();
if (pair.InitializeFullNeeded())
{
if (options.Initialize)
{
//continue, unprompted
if (pair.InitializeMergeWarning())
{
consoleEx.WriteLine("WARNING: Decrypted directory is not empty and will be merged");
}
}
else
{
consoleEx.WriteLine("Directories require initialization...");
if (!consoleEx.PromptBool("Initialized encrypted and decrypted directories now? [y/N] ", false))
{
consoleEx.WriteErrorLine("Operation cancelled");
sum.Error = new InitializationCanceledException();
return(sum);
}
if (pair.InitializeMergeWarning())
{
if (!consoleEx.PromptBool("Decrypted directory is not empty and will be merged, continue? [y/N] ", false))
{
consoleEx.WriteErrorLine("Operation cancelled");
sum.Error = new InitializationCanceledException();
return(sum);
}
}
}
pair.InitializeFull(consoleEx);
}
pair.OpenEncr(consoleEx);
if (pair.InitializeDecrNeeded())
{
if (options.Initialize)
{
//continue, unprompted
if (pair.InitializeMergeWarning())
{
consoleEx.WriteLine("WARNING: Decrypted directory is not empty and will be merged");
}
}
else
{
consoleEx.WriteLine("Decrypted directory require initialization...");
if (!consoleEx.PromptBool("Initialized decrypted directories now? [y/N] ", false))
{
consoleEx.WriteErrorLine("Operation cancelled");
sum.Error = new InitializationCanceledException();
return(sum);
}
if (pair.InitializeMergeWarning())
{
if (!consoleEx.PromptBool("Decrypted directory is not empty and will be merged, continue? [y/N] ", false))
{
consoleEx.WriteErrorLine("Operation cancelled");
sum.Error = new InitializationCanceledException();
return(sum);
}
}
}
pair.InitializeDecr(consoleEx);
}
pair.OpenDecr(consoleEx);
pair.Cleanup(consoleEx);
List <PreSyncDetails> changes = pair.FindChanges(clearCache: false, console: consoleEx);
if (changes.Count == 0)
{
consoleEx.WriteLine("--No Changes--");
}
var defaultConflictAction = "";
consoleEx.WriteLine(VerbosityLevel.Normal, 0, "Performing Sync...");
foreach (PreSyncDetails change in changes)
{
consoleEx.WriteLine(change);
if (change.SyncMode == PreSyncMode.Conflict)
{
var decrModified = change.DecrInfo == null ? (object)null : change.DecrInfo.LastWriteTimeUtc.ToLocalTime();
var decrSize = change.DecrInfo == null ? (object)null : HelixUtil.FormatBytes5(change.DecrInfo.Length);
var encrModified = change.EncrInfo == null ? (object)null : change.EncrInfo.LastWriteTimeUtc.ToLocalTime();
var encrSize = change.EncrHeader == null ? (object)null : HelixUtil.FormatBytes5(change.EncrHeader.Length);
string response;
if (defaultConflictAction != "")
{
response = defaultConflictAction;
}
else
{
consoleEx.WriteLine($" Decrypted - Modified: {decrModified}, Size: {decrSize}");
consoleEx.WriteLine($" Encrypted - Modified: {encrModified}, Size: {encrSize}");
consoleEx.WriteLine($"");
consoleEx.WriteLine($" D - Decrypted, E - Encrypted, S - Skip, + Always perform this action"); //todo: support newer, support always
response = consoleEx.PromptChoice(" Select Option [D,E,S,D+,E+,S+]? ", new string[] { "D", "E", "S", "D+", "E+", "S+" }, "S");
if (response.EndsWith("+"))
{
response = response.Substring(0, 1);
defaultConflictAction = response;
}
}
if (response == "D")
{
change.SyncMode = PreSyncMode.DecryptedSide;
}
else if (response == "E")
{
change.SyncMode = PreSyncMode.EncryptedSide;
}
if (change.SyncMode != PreSyncMode.Conflict)
{
consoleEx.WriteLine(change);
}
}
if (change.SyncMode == PreSyncMode.EncryptedSide)
{
//todo: make display operation be the actual operation
if (change.DisplayOperation == PreSyncOperation.Add)
{
sum.EncrAdd++;
}
else if (change.DisplayOperation == PreSyncOperation.Remove)
{
sum.EncrRemove++;
}
else if (change.DisplayOperation == PreSyncOperation.Change)
{
sum.EncrChange++;
}
else
{
sum.EncrOther++;
}
}
else if (change.SyncMode == PreSyncMode.DecryptedSide)
{
if (change.DisplayOperation == PreSyncOperation.Add)
{
sum.DecrAdd++;
}
else if (change.DisplayOperation == PreSyncOperation.Remove)
{
sum.DecrRemove++;
}
else if (change.DisplayOperation == PreSyncOperation.Change)
{
sum.DecrChange++;
}
else
{
sum.DecrOther++;
}
}
else if (change.SyncMode == PreSyncMode.Conflict)
{
sum.Conflict++;
}
var syncResult = pair.TrySync(change, consoleEx);
//todo: add to error log
if (syncResult.Exception != null)
{
consoleEx.WriteErrorLine("..." + syncResult.Exception.Message);
}
}
consoleEx.WriteLine("== Summary ==");
consoleEx.WriteLine(sum);
//todo: fix unchanged
consoleEx.WriteLine();
//consoleEx.WriteLine(VerbosityLevel.Diagnostic, 0, "");
//consoleEx.WriteLine(VerbosityLevel.Diagnostic, 0, "==Decr Directory==");
//foreach (var entry in decrDirectory.FSDirectory.GetEntries(SearchOption.AllDirectories))
//{
// if (entry is FSDirectory dirEntry)
// consoleEx.WriteLine(VerbosityLevel.Diagnostic, 1, $"<dir> {entry.RelativePath}");
// else if (entry is FSFile fileEntry)
// consoleEx.WriteLine(VerbosityLevel.Diagnostic, 1, $"{HelixUtil.FormatBytes5(entry.Length)} {entry.RelativePath}");
//}
//consoleEx.WriteLine(VerbosityLevel.Diagnostic, 0, "");
//consoleEx.WriteLine(VerbosityLevel.Diagnostic, 0, "==Encr Directory==");
//foreach (var entry in encrDirectory.FSDirectory.GetEntries(SearchOption.AllDirectories))
//{
// if (entry is FSDirectory dirEntry)
// consoleEx.WriteLine(VerbosityLevel.Diagnostic, 1, $"<dir> {entry.RelativePath}");
// else if (entry is FSFile fileEntry)
// consoleEx.WriteLine(VerbosityLevel.Diagnostic, 1, $"{HelixUtil.FormatBytes5(entry.Length)} {entry.RelativePath}");
//}
return(sum);
}
