static byte [] HashStream(Stream stream, ImageWriter writer, out int strong_name_pointer)
{
const int buffer_size = 8192;
var text = writer.text;
var header_size = (int)writer.GetHeaderSize();
var text_section_pointer = (int)text.PointerToRawData;
var strong_name_directory = writer.GetStrongNameSignatureDirectory();
if (strong_name_directory.Size == 0)
{
throw new InvalidOperationException();
}
strong_name_pointer = (int)(text_section_pointer
+ (strong_name_directory.VirtualAddress - text.VirtualAddress));
var strong_name_length = (int)strong_name_directory.Size;
var sha1 = new SHA1Managed();
var buffer = new byte [buffer_size];
using (var crypto_stream = new CryptoStream(Stream.Null, sha1, CryptoStreamMode.Write)) {
stream.Seek(0, SeekOrigin.Begin);
CopyStreamChunk(stream, crypto_stream, buffer, header_size);
stream.Seek(text_section_pointer, SeekOrigin.Begin);
CopyStreamChunk(stream, crypto_stream, buffer, (int)strong_name_pointer - text_section_pointer);
stream.Seek(strong_name_length, SeekOrigin.Current);
CopyStreamChunk(stream, crypto_stream, buffer, (int)(stream.Length - (strong_name_pointer + strong_name_length)));
}
return(sha1.Hash);
}
private static byte[] HashStream(Stream stream, ImageWriter writer, out int strong_name_pointer)
{
Section text = writer.text;
int headerSize = (int)writer.GetHeaderSize();
int pointerToRawData = (int)text.PointerToRawData;
DataDirectory strongNameSignatureDirectory = writer.GetStrongNameSignatureDirectory();
if (strongNameSignatureDirectory.Size == 0)
{
throw new InvalidOperationException();
}
strong_name_pointer = (int)(pointerToRawData + (strongNameSignatureDirectory.VirtualAddress - text.VirtualAddress));
int size = (int)strongNameSignatureDirectory.Size;
SHA1Managed sHA1Managed = new SHA1Managed();
byte[] buffer = new byte[8192];
using (CryptoStream dest_stream = new CryptoStream(Stream.Null, sHA1Managed, CryptoStreamMode.Write))
{
stream.Seek(0L, SeekOrigin.Begin);
CopyStreamChunk(stream, dest_stream, buffer, headerSize);
stream.Seek(pointerToRawData, SeekOrigin.Begin);
CopyStreamChunk(stream, dest_stream, buffer, strong_name_pointer - pointerToRawData);
stream.Seek(size, SeekOrigin.Current);
CopyStreamChunk(stream, dest_stream, buffer, (int)(stream.Length - (strong_name_pointer + size)));
}
return(sHA1Managed.Hash);
}
private static byte[] HashStream(Stream stream, ImageWriter writer, out int strong_name_pointer)
{
Section section = writer.text;
int headerSize = (int)writer.GetHeaderSize();
int pointerToRawData = (int)section.PointerToRawData;
DataDirectory strongNameSignatureDirectory = writer.GetStrongNameSignatureDirectory();
if (strongNameSignatureDirectory.Size == 0)
{
throw new InvalidOperationException();
}
strong_name_pointer = (int)((long)pointerToRawData + (ulong)(strongNameSignatureDirectory.VirtualAddress - section.VirtualAddress));
int size = (int)strongNameSignatureDirectory.Size;
SHA1Managed sHA1Managed = new SHA1Managed();
byte[] numArray = new byte[8192];
using (CryptoStream cryptoStream = new CryptoStream(Stream.Null, sHA1Managed, CryptoStreamMode.Write))
{
stream.Seek((long)0, SeekOrigin.Begin);
CryptoService.CopyStreamChunk(stream, cryptoStream, numArray, headerSize);
stream.Seek((long)pointerToRawData, SeekOrigin.Begin);
CryptoService.CopyStreamChunk(stream, cryptoStream, numArray, strong_name_pointer - pointerToRawData);
stream.Seek((long)size, SeekOrigin.Current);
CryptoService.CopyStreamChunk(stream, cryptoStream, numArray, (int)(stream.Length - (long)(strong_name_pointer + size)));
}
return(sHA1Managed.Hash);
}
static byte [] HashStream (Stream stream, ImageWriter writer, out int strong_name_pointer)
{
const int buffer_size = 8192;
var text = writer.text;
var header_size = (int) writer.GetHeaderSize ();
var text_section_pointer = (int) text.PointerToRawData;
var strong_name_directory = writer.GetStrongNameSignatureDirectory ();
if (strong_name_directory.Size == 0)
throw new InvalidOperationException ();
strong_name_pointer = (int) (text_section_pointer
+ (strong_name_directory.VirtualAddress - text.VirtualAddress));
var strong_name_length = (int) strong_name_directory.Size;
var sha1 = new SHA1Managed ();
var buffer = new byte [buffer_size];
using (var crypto_stream = new CryptoStream (Stream.Null, sha1, CryptoStreamMode.Write)) {
stream.Seek (0, SeekOrigin.Begin);
CopyStreamChunk (stream, crypto_stream, buffer, header_size);
stream.Seek (text_section_pointer, SeekOrigin.Begin);
CopyStreamChunk (stream, crypto_stream, buffer, (int) strong_name_pointer - text_section_pointer);
stream.Seek (strong_name_length, SeekOrigin.Current);
CopyStreamChunk (stream, crypto_stream, buffer, (int) (stream.Length - (strong_name_pointer + strong_name_length)));
}
return sha1.Hash;
}
