public Pbkdf2Result(byte[] password, byte[] salt, int iteration, byte[] key)
{
Password = BytesEx.FromBytes(password);
Salt = BytesEx.FromBytes(salt);
Iteration = iteration;
Key = BytesEx.FromBytes(key);
}
public Pbkdf2Result(BytesEx password, BytesEx salt, int iteration, BytesEx key)
{
Password = password;
Salt = salt;
Iteration = iteration;
Key = key;
}
public static BytesEx Hash(BytesEx input, HashAlgorithm algorithm)
{
System.Security.Cryptography.HashAlgorithm hasher = GetAlgorithm(algorithm);
byte[] hashByte = hasher.ComputeHash(input.Values);
BytesEx hash = BytesEx.FromBytes(hashByte);
return(hash);
}
internal FileDescriptor(string name, string extension, string parent, FileMetadata property = null, BytesEx md5 = null, BytesEx sha1 = null, BytesEx sha256 = null, BytesEx sha512 = null)
: base(name, extension, parent)
{
Property = property;
Md5 = md5;
Sha1 = sha1;
Sha256 = sha256;
Sha512 = sha512;
}
public static bool Verify(string password, byte[] salt, int iteration, byte[] key)
{
BytesEx passwordBytes = BytesEx.FromString(password);
BytesEx saltBytes = BytesEx.FromBytes(salt);
BytesEx keyBytes = BytesEx.FromBytes(key);
Pbkdf2Result pbkdf2 = new Pbkdf2Result(passwordBytes, saltBytes, iteration, keyBytes);
return(Verify(pbkdf2));
}
public static Pbkdf2Result Hash(string password, int?saltLength, int?iteration, int?keyLength)
{
Pbkdf2Parameter parameter = new Pbkdf2Parameter();
parameter.Password = BytesEx.FromString(password);
parameter.SaltLength = saltLength;
parameter.Iteration = iteration;
parameter.KeyLength = keyLength;
Pbkdf2Result pbkdf2 = Hash(parameter);
return(pbkdf2);
}
public static BytesEx Sha256(BytesEx input)
{
BytesEx hash = Hash(input, HashAlgorithm.Sha256);
return(hash);
}
public static BytesEx Md5(BytesEx input)
{
BytesEx hash = Hash(input, HashAlgorithm.Md5);
return(hash);
}
internal static FileDescriptor GetFileDescriptor(FileGetFileDescriptorArgument args)
{
string realPath = PathExpress.ResolvePath(args.Path);
string parent = Path.GetDirectoryName(realPath);
string fullName = Path.GetFileName(realPath);
string name = Path.GetFileNameWithoutExtension(fullName);
string extension = Path.GetExtension(fullName);
FileMetadata metadata = null;
BytesEx md5Hash = null;
BytesEx sha1Hash = null;
BytesEx sha256Hash = null;
BytesEx sha512Hash = null;
if (args.IncludeAttribute)
{
FileInfo fileInfo = new FileInfo(realPath);
bool isArchive = fileInfo.Attributes.HasFlag(FileAttributes.Archive);
bool isReadOnly = fileInfo.Attributes.HasFlag(FileAttributes.ReadOnly);
bool isHidden = fileInfo.Attributes.HasFlag(FileAttributes.Hidden);
bool isSystem = fileInfo.Attributes.HasFlag(FileAttributes.System);
long length = fileInfo.Length;
DateTime createdTime = fileInfo.CreationTimeUtc;
DateTime modifiedTime = fileInfo.LastWriteTimeUtc;
DateTime accessTime = fileInfo.LastAccessTimeUtc;
metadata = new FileMetadata(isArchive, isHidden, isReadOnly, isSystem, length, createdTime, accessTime, modifiedTime);
}
if (args.IncludeMd5 || args.IncludeSha1 || args.IncludeSha256 || args.IncludeSha512)
{
string md5 = "md5";
string sha1 = "sha1";
string sha256 = "sha256";
string sha512 = "sha512";
Dictionary <string, System.Security.Cryptography.HashAlgorithm> cryptDictionary = new Dictionary <string, System.Security.Cryptography.HashAlgorithm>();
if (args.IncludeMd5)
{
cryptDictionary[md5] = HashExpress.GetAlgorithm(HashAlgorithm.Md5);
}
if (args.IncludeSha1)
{
cryptDictionary[sha1] = HashExpress.GetAlgorithm(HashAlgorithm.Sha1);
}
if (args.IncludeSha256)
{
cryptDictionary[sha256] = HashExpress.GetAlgorithm(HashAlgorithm.Sha256);
}
if (args.IncludeSha512)
{
cryptDictionary[sha512] = HashExpress.GetAlgorithm(HashAlgorithm.Sha512);
}
System.Security.Cryptography.HashAlgorithm[] crypts = cryptDictionary.Values.ToArray();
using (Stream fileStream = new FileStream(realPath, FileMode.Open))
{
byte[] buffer = new byte[HashExpress.StreamBufferSize];
int read;
long currentPosition = 0L;
long streamLength = fileStream.Length;
while ((read = fileStream.Read(buffer, 0, buffer.Length)) > 0)
{
currentPosition += read;
foreach (System.Security.Cryptography.HashAlgorithm crypt in crypts)
{
if (currentPosition < streamLength)
{
int _ = crypt.TransformBlock(buffer, 0, read, buffer, 0);
}
else
{
byte[] _ = crypt.TransformFinalBlock(buffer, 0, read);
}
}
}
if (args.IncludeMd5)
{
md5Hash = BytesEx.FromBytes(cryptDictionary[md5].Hash);
}
if (args.IncludeSha1)
{
sha1Hash = BytesEx.FromBytes(cryptDictionary[sha1].Hash);
}
if (args.IncludeSha256)
{
sha256Hash = BytesEx.FromBytes(cryptDictionary[sha256].Hash);
}
if (args.IncludeSha512)
{
sha512Hash = BytesEx.FromBytes(cryptDictionary[sha512].Hash);
}
}
}
FileDescriptor result = new FileDescriptor(name, extension, parent, metadata, md5Hash, sha1Hash, sha256Hash, sha512Hash);
return(result);
}
