private static bool ComputeFullHash(FileInfoExt path)
{
try
{
var _SHA512 = SHA512.Create();
_SHA512.TransformBlock(salt, 0, salt.Length, null, 0);
using (var stream = File.OpenRead(path.FI.FullName))
{
while (true)
{
var length = stream.Read(largeBuf, 0, largeBuf.Length);
if (stream.Position < stream.Length) // if not at end of file...
{
_SHA512.TransformBlock(largeBuf, 0, length, null, 0); // hash the buffer, and loop.
}
else
{
_SHA512.TransformFinalBlock(largeBuf, 0, length); // if at end of file, hash last time and end looping
break;
}
}
}
path.SHA512_All = _SHA512.Hash;
return(true);
}
catch (Exception e)
{
Console.WriteLine("Hash error: " + e.Message);
path.Matched = true;
return(false);
}
}
private static bool ComputeFullHash(FileInfoExt path)
{
Buffer.BlockCopy(randomNumber, 0, largeBuf, 0, randomNumber.Length);
try
{
var _SHA = SHA512.Create();
using (var stream = File.OpenRead(path.FI.FullName))
{
System.Boolean EOF = false;
while (EOF == false)
{
var length = stream.Read(largeBuf, hash.Length, largeBuf.Length - hash.Length);
if (length != (largeBuf.Length - hash.Length))
{
EOF = true;
}
hash = _SHA.ComputeHash(largeBuf, 0, length + hash.Length);
Buffer.BlockCopy(hash, 0, largeBuf, 0, hash.Length);
}
}
Buffer.BlockCopy(hash, 0, path.SHA512_All, 0, hash.Length);
path.SHA512_AllSet = true;
return(true);
}
catch (Exception e)
{
Console.WriteLine("Hash error: " + e.Message);
return(false);
}
}
private static bool ComputeFullHash(FileInfoExt path)
{
try
{
var _SHA512 = SHA512.Create();
_SHA512.TransformBlock(salt, 0, salt.Length, salt, 0);
using (var stream = File.OpenRead(path.FI.FullName))
{
while (true)
{
var length = stream.Read(largeBuf, 0, largeBuf.Length);
if (stream.Position < stream.Length)
{
_SHA512.TransformBlock(largeBuf, 0, length, largeBuf, 0);
}
else
{
_SHA512.TransformFinalBlock(largeBuf, 0, length);
break;
}
}
}
path.SHA512_All = _SHA512.Hash;
path.SHA512_AllSet = true;
return(true);
}
catch (Exception e)
{
Console.WriteLine("Hash error: " + e.Message);
return(false);
}
}
private static bool ComputeFullHash(FileInfoExt path)
{
try
{
var _SHA512 = SHA512.Create();
using (var fstream = File.OpenRead(path.FI.FullName))
{
_SHA512.ComputeHash(fstream);
}
path.SHA512_All = _SHA512.Hash;
return(true);
}
catch (Exception e)
{
WriteErr("Hash error: " + e.Message);
path.Matched = true;
return(false);
}
}
private static bool Compute1KHash(FileInfoExt path)
{
Buffer.BlockCopy(randomNumber, 0, readBuf, 0, randomNumber.Length);
try
{
using (var stream = File.OpenRead(path.FI.FullName))
{
var length = stream.Read(readBuf, hash.Length, readBuf.Length - hash.Length);
hash = SHA512.Create().ComputeHash(readBuf, 0, length + hash.Length);
Buffer.BlockCopy(hash, 0, path.SHA512_1st1K, 0, hash.Length);
path.SHA512_1st1KSet = true;
return(true);
}
}
catch (Exception e)
{
Console.WriteLine("Hash Error: " + e.Message);
return(false);
}
}
private static bool Compute1KHash(FileInfoExt path)
{
try
{
using (var fstream = File.OpenRead(path.FI.FullName))
{
var length = fstream.Read(readBuf, 0, readBuf.Length);
var _SHA512 = SHA512.Create();
_SHA512.TransformFinalBlock(readBuf, 0, length);
path.SHA512_1st1K = _SHA512.Hash;
return(true);
}
}
catch (Exception e)
{
WriteErr("Hash Error: " + e.Message);
path.Matched = true; // since the file error'ed out, don't check against it again.
return(false);
}
}
private static bool Compute1KHash(FileInfoExt path)
{
try
{
using (var stream = File.OpenRead(path.FI.FullName))
{
var length = stream.Read(readBuf, 0, readBuf.Length);
var _SHA512 = SHA512.Create();
_SHA512.TransformBlock(salt, 0, salt.Length, salt, 0);
_SHA512.TransformFinalBlock(readBuf, 0, length);
path.SHA512_1st1K = _SHA512.Hash;
path.SHA512_1st1KSet = true;
return(true);
}
}
catch (Exception e)
{
Console.WriteLine("Hash Error: " + e.Message);
return(false);
}
}