public void Crc64RandomData() { byte[] data = new byte[1048576]; FileStream fs = new FileStream(Path.Combine(Consts.TestFilesRoot, "checksums", "random"), FileMode.Open, FileAccess.Read); fs.Read(data, 0, 1048576); fs.Close(); fs.Dispose(); Crc64Context.Data(data, out byte[] result); Assert.AreEqual(ExpectedRandom, result); }
public void RandomData() { byte[] data = new byte[1048576]; var fs = new FileStream(Path.Combine(Consts.TEST_FILES_ROOT, "Checksum test files", "random"), FileMode.Open, FileAccess.Read); fs.Read(data, 0, 1048576); fs.Close(); fs.Dispose(); Crc64Context.Data(data, out byte[] result); result.Should().BeEquivalentTo(_expectedRandom); }
public void Crc64EmptyData() { byte[] data = new byte[1048576]; var fs = new FileStream(Path.Combine(Consts.TEST_FILES_ROOT, "Checksum test files", "empty"), FileMode.Open, FileAccess.Read); fs.Read(data, 0, 1048576); fs.Close(); fs.Dispose(); Crc64Context.Data(data, out byte[] result); Assert.AreEqual(_expectedEmpty, result); }
internal Checksum() { adler32ctx = new Adler32Context(); crc16ctx = new Crc16Context(); crc32ctx = new Crc32Context(); crc64ctx = new Crc64Context(); md5ctx = new Md5Context(); ripemd160ctx = new Ripemd160Context(); sha1ctx = new Sha1Context(); sha256ctx = new Sha256Context(); sha384ctx = new Sha384Context(); sha512ctx = new Sha512Context(); ssctx = new SpamSumContext(); adlerThread = new Thread(updateAdler); crc16Thread = new Thread(updateCRC16); crc32Thread = new Thread(updateCRC32); crc64Thread = new Thread(updateCRC64); md5Thread = new Thread(updateMD5); ripemd160Thread = new Thread(updateRIPEMD160); sha1Thread = new Thread(updateSHA1); sha256Thread = new Thread(updateSHA256); sha384Thread = new Thread(updateSHA384); sha512Thread = new Thread(updateSHA512); spamsumThread = new Thread(updateSpamSum); adlerPkt = new adlerPacket(); crc16Pkt = new crc16Packet(); crc32Pkt = new crc32Packet(); crc64Pkt = new crc64Packet(); md5Pkt = new md5Packet(); ripemd160Pkt = new ripemd160Packet(); sha1Pkt = new sha1Packet(); sha256Pkt = new sha256Packet(); sha384Pkt = new sha384Packet(); sha512Pkt = new sha512Packet(); spamsumPkt = new spamsumPacket(); adlerPkt.context = adler32ctx; crc16Pkt.context = crc16ctx; crc32Pkt.context = crc32ctx; crc64Pkt.context = crc64ctx; md5Pkt.context = md5ctx; ripemd160Pkt.context = ripemd160ctx; sha1Pkt.context = sha1ctx; sha256Pkt.context = sha256ctx; sha384Pkt.context = sha384ctx; sha512Pkt.context = sha512ctx; spamsumPkt.context = ssctx; }
public void EmptyInstance() { byte[] data = new byte[1048576]; var fs = new FileStream(Path.Combine(Consts.TEST_FILES_ROOT, "Checksum test files", "empty"), FileMode.Open, FileAccess.Read); fs.Read(data, 0, 1048576); fs.Close(); fs.Dispose(); IChecksum ctx = new Crc64Context(); ctx.Update(data); byte[] result = ctx.Final(); result.Should().BeEquivalentTo(_expectedEmpty); }
public void Crc64EmptyInstance() { byte[] data = new byte[1048576]; FileStream fs = new FileStream(Path.Combine(Consts.TestFilesRoot, "checksums", "empty"), FileMode.Open, FileAccess.Read); fs.Read(data, 0, 1048576); fs.Close(); fs.Dispose(); IChecksum ctx = new Crc64Context(); ctx.Update(data); byte[] result = ctx.Final(); Assert.AreEqual(ExpectedEmpty, result); }
public void Crc64RandomInstance() { byte[] data = new byte[1048576]; var fs = new FileStream(Path.Combine(Consts.TEST_FILES_ROOT, "Checksum test files", "random"), FileMode.Open, FileAccess.Read); fs.Read(data, 0, 1048576); fs.Close(); fs.Dispose(); IChecksum ctx = new Crc64Context(); ctx.Update(data); byte[] result = ctx.Final(); Assert.AreEqual(_expectedRandom, result); }
internal static List <ChecksumType> GetChecksums(byte[] data, EnableChecksum enabled = EnableChecksum.All) { IChecksum adler32CtxData = null; IChecksum crc16CtxData = null; IChecksum crc32CtxData = null; IChecksum crc64CtxData = null; IChecksum md5CtxData = null; IChecksum sha1CtxData = null; IChecksum sha256CtxData = null; IChecksum sha384CtxData = null; IChecksum sha512CtxData = null; IChecksum ssctxData = null; IChecksum f16CtxData = null; IChecksum f32CtxData = null; var adlerThreadData = new Thread(UpdateHash); var crc16ThreadData = new Thread(UpdateHash); var crc32ThreadData = new Thread(UpdateHash); var crc64ThreadData = new Thread(UpdateHash); var md5ThreadData = new Thread(UpdateHash); var sha1ThreadData = new Thread(UpdateHash); var sha256ThreadData = new Thread(UpdateHash); var sha384ThreadData = new Thread(UpdateHash); var sha512ThreadData = new Thread(UpdateHash); var spamsumThreadData = new Thread(UpdateHash); var f16ThreadData = new Thread(UpdateHash); var f32ThreadData = new Thread(UpdateHash); if (enabled.HasFlag(EnableChecksum.Adler32)) { adler32CtxData = new Adler32Context(); var adlerPktData = new HashPacket { Context = adler32CtxData, Data = data }; adlerThreadData.Start(adlerPktData); } if (enabled.HasFlag(EnableChecksum.Crc16)) { crc16CtxData = new CRC16IBMContext(); var crc16PktData = new HashPacket { Context = crc16CtxData, Data = data }; crc16ThreadData.Start(crc16PktData); } if (enabled.HasFlag(EnableChecksum.Crc32)) { crc32CtxData = new Crc32Context(); var crc32PktData = new HashPacket { Context = crc32CtxData, Data = data }; crc32ThreadData.Start(crc32PktData); } if (enabled.HasFlag(EnableChecksum.Crc64)) { crc64CtxData = new Crc64Context(); var crc64PktData = new HashPacket { Context = crc64CtxData, Data = data }; crc64ThreadData.Start(crc64PktData); } if (enabled.HasFlag(EnableChecksum.Md5)) { md5CtxData = new Md5Context(); var md5PktData = new HashPacket { Context = md5CtxData, Data = data }; md5ThreadData.Start(md5PktData); } if (enabled.HasFlag(EnableChecksum.Sha1)) { sha1CtxData = new Sha1Context(); var sha1PktData = new HashPacket { Context = sha1CtxData, Data = data }; sha1ThreadData.Start(sha1PktData); } if (enabled.HasFlag(EnableChecksum.Sha256)) { sha256CtxData = new Sha256Context(); var sha256PktData = new HashPacket { Context = sha256CtxData, Data = data }; sha256ThreadData.Start(sha256PktData); } if (enabled.HasFlag(EnableChecksum.Sha384)) { sha384CtxData = new Sha384Context(); var sha384PktData = new HashPacket { Context = sha384CtxData, Data = data }; sha384ThreadData.Start(sha384PktData); } if (enabled.HasFlag(EnableChecksum.Sha512)) { sha512CtxData = new Sha512Context(); var sha512PktData = new HashPacket { Context = sha512CtxData, Data = data }; sha512ThreadData.Start(sha512PktData); } if (enabled.HasFlag(EnableChecksum.SpamSum)) { ssctxData = new SpamSumContext(); var spamsumPktData = new HashPacket { Context = ssctxData, Data = data }; spamsumThreadData.Start(spamsumPktData); } if (enabled.HasFlag(EnableChecksum.Fletcher16)) { f16CtxData = new Fletcher16Context(); var f16PktData = new HashPacket { Context = f16CtxData, Data = data }; f16ThreadData.Start(f16PktData); } if (enabled.HasFlag(EnableChecksum.Fletcher32)) { f32CtxData = new Fletcher32Context(); var f32PktData = new HashPacket { Context = f32CtxData, Data = data }; f32ThreadData.Start(f32PktData); } while (adlerThreadData.IsAlive || crc16ThreadData.IsAlive || crc32ThreadData.IsAlive || crc64ThreadData.IsAlive || md5ThreadData.IsAlive || sha1ThreadData.IsAlive || sha256ThreadData.IsAlive || sha384ThreadData.IsAlive || sha512ThreadData.IsAlive || spamsumThreadData.IsAlive || f16ThreadData.IsAlive || f32ThreadData.IsAlive) { } List <ChecksumType> dataChecksums = new List <ChecksumType>(); ChecksumType chk; if (enabled.HasFlag(EnableChecksum.Adler32)) { chk = new ChecksumType { type = ChecksumTypeType.adler32, Value = adler32CtxData.End() }; dataChecksums.Add(chk); } if (enabled.HasFlag(EnableChecksum.Crc16)) { chk = new ChecksumType { type = ChecksumTypeType.crc16, Value = crc16CtxData.End() }; dataChecksums.Add(chk); } if (enabled.HasFlag(EnableChecksum.Crc32)) { chk = new ChecksumType { type = ChecksumTypeType.crc32, Value = crc32CtxData.End() }; dataChecksums.Add(chk); } if (enabled.HasFlag(EnableChecksum.Crc64)) { chk = new ChecksumType { type = ChecksumTypeType.crc64, Value = crc64CtxData.End() }; dataChecksums.Add(chk); } if (enabled.HasFlag(EnableChecksum.Md5)) { chk = new ChecksumType { type = ChecksumTypeType.md5, Value = md5CtxData.End() }; dataChecksums.Add(chk); } if (enabled.HasFlag(EnableChecksum.Sha1)) { chk = new ChecksumType { type = ChecksumTypeType.sha1, Value = sha1CtxData.End() }; dataChecksums.Add(chk); } if (enabled.HasFlag(EnableChecksum.Sha256)) { chk = new ChecksumType { type = ChecksumTypeType.sha256, Value = sha256CtxData.End() }; dataChecksums.Add(chk); } if (enabled.HasFlag(EnableChecksum.Sha384)) { chk = new ChecksumType { type = ChecksumTypeType.sha384, Value = sha384CtxData.End() }; dataChecksums.Add(chk); } if (enabled.HasFlag(EnableChecksum.Sha512)) { chk = new ChecksumType { type = ChecksumTypeType.sha512, Value = sha512CtxData.End() }; dataChecksums.Add(chk); } if (enabled.HasFlag(EnableChecksum.SpamSum)) { chk = new ChecksumType { type = ChecksumTypeType.spamsum, Value = ssctxData.End() }; dataChecksums.Add(chk); } if (enabled.HasFlag(EnableChecksum.Fletcher16)) { chk = new ChecksumType { type = ChecksumTypeType.fletcher16, Value = f16CtxData.End() }; dataChecksums.Add(chk); } if (enabled.HasFlag(EnableChecksum.Fletcher32)) { chk = new ChecksumType { type = ChecksumTypeType.fletcher32, Value = f32CtxData.End() }; dataChecksums.Add(chk); } return(dataChecksums); }
internal static List <ChecksumType> GetChecksums(byte[] data, EnableChecksum enabled = EnableChecksum.All) { IChecksum adler32CtxData = null; IChecksum crc16CtxData = null; IChecksum crc32CtxData = null; IChecksum crc64CtxData = null; IChecksum md5CtxData = null; #if !NETSTANDARD2_0 IChecksum ripemd160CtxData = null; #endif IChecksum sha1CtxData = null; IChecksum sha256CtxData = null; IChecksum sha384CtxData = null; IChecksum sha512CtxData = null; IChecksum ssctxData = null; IChecksum f16CtxData = null; IChecksum f32CtxData = null; Thread adlerThreadData = new Thread(UpdateHash); Thread crc16ThreadData = new Thread(UpdateHash); Thread crc32ThreadData = new Thread(UpdateHash); Thread crc64ThreadData = new Thread(UpdateHash); Thread md5ThreadData = new Thread(UpdateHash); #if !NETSTANDARD2_0 Thread ripemd160ThreadData = new Thread(UpdateHash); #endif Thread sha1ThreadData = new Thread(UpdateHash); Thread sha256ThreadData = new Thread(UpdateHash); Thread sha384ThreadData = new Thread(UpdateHash); Thread sha512ThreadData = new Thread(UpdateHash); Thread spamsumThreadData = new Thread(UpdateHash); Thread f16ThreadData = new Thread(UpdateHash); Thread f32ThreadData = new Thread(UpdateHash); if (enabled.HasFlag(EnableChecksum.Adler32)) { adler32CtxData = new Adler32Context(); HashPacket adlerPktData = new HashPacket { Context = adler32CtxData, Data = data }; adlerThreadData.Start(adlerPktData); } if (enabled.HasFlag(EnableChecksum.Crc16)) { crc16CtxData = new Crc16Context(); HashPacket crc16PktData = new HashPacket { Context = crc16CtxData, Data = data }; crc16ThreadData.Start(crc16PktData); } if (enabled.HasFlag(EnableChecksum.Crc32)) { crc32CtxData = new Crc32Context(); HashPacket crc32PktData = new HashPacket { Context = crc32CtxData, Data = data }; crc32ThreadData.Start(crc32PktData); } if (enabled.HasFlag(EnableChecksum.Crc64)) { crc64CtxData = new Crc64Context(); HashPacket crc64PktData = new HashPacket { Context = crc64CtxData, Data = data }; crc64ThreadData.Start(crc64PktData); } if (enabled.HasFlag(EnableChecksum.Md5)) { md5CtxData = new Md5Context(); HashPacket md5PktData = new HashPacket { Context = md5CtxData, Data = data }; md5ThreadData.Start(md5PktData); } #if !NETSTANDARD2_0 if (enabled.HasFlag(EnableChecksum.Ripemd160)) { ripemd160CtxData = new Ripemd160Context(); HashPacket ripemd160PktData = new HashPacket { Context = ripemd160CtxData, Data = data }; ripemd160ThreadData.Start(ripemd160PktData); } #endif if (enabled.HasFlag(EnableChecksum.Sha1)) { sha1CtxData = new Sha1Context(); HashPacket sha1PktData = new HashPacket { Context = sha1CtxData, Data = data }; sha1ThreadData.Start(sha1PktData); } if (enabled.HasFlag(EnableChecksum.Sha256)) { sha256CtxData = new Sha256Context(); HashPacket sha256PktData = new HashPacket { Context = sha256CtxData, Data = data }; sha256ThreadData.Start(sha256PktData); } if (enabled.HasFlag(EnableChecksum.Sha384)) { sha384CtxData = new Sha384Context(); HashPacket sha384PktData = new HashPacket { Context = sha384CtxData, Data = data }; sha384ThreadData.Start(sha384PktData); } if (enabled.HasFlag(EnableChecksum.Sha512)) { sha512CtxData = new Sha512Context(); HashPacket sha512PktData = new HashPacket { Context = sha512CtxData, Data = data }; sha512ThreadData.Start(sha512PktData); } if (enabled.HasFlag(EnableChecksum.SpamSum)) { ssctxData = new SpamSumContext(); HashPacket spamsumPktData = new HashPacket { Context = ssctxData, Data = data }; spamsumThreadData.Start(spamsumPktData); } if (enabled.HasFlag(EnableChecksum.Fletcher16)) { f16CtxData = new Fletcher16Context(); HashPacket f16PktData = new HashPacket { Context = f16CtxData, Data = data }; f16ThreadData.Start(f16PktData); } if (enabled.HasFlag(EnableChecksum.Fletcher32)) { f32CtxData = new Fletcher32Context(); HashPacket f32PktData = new HashPacket { Context = f32CtxData, Data = data }; f32ThreadData.Start(f32PktData); } while (adlerThreadData.IsAlive || crc16ThreadData.IsAlive || crc32ThreadData.IsAlive || crc64ThreadData.IsAlive || md5ThreadData.IsAlive || #if !NETSTANDARD2_0 ripemd160ThreadData.IsAlive || #endif sha1ThreadData.IsAlive || sha256ThreadData.IsAlive || sha384ThreadData.IsAlive || sha512ThreadData.IsAlive || spamsumThreadData.IsAlive || f16ThreadData.IsAlive || f32ThreadData.IsAlive) { } List <ChecksumType> dataChecksums = new List <ChecksumType>(); ChecksumType chk; if (enabled.HasFlag(EnableChecksum.Adler32)) { chk = new ChecksumType { type = ChecksumTypeType.adler32, Value = adler32CtxData.End() }; dataChecksums.Add(chk); } if (enabled.HasFlag(EnableChecksum.Crc16)) { chk = new ChecksumType { type = ChecksumTypeType.crc16, Value = crc16CtxData.End() }; dataChecksums.Add(chk); } if (enabled.HasFlag(EnableChecksum.Crc32)) { chk = new ChecksumType { type = ChecksumTypeType.crc32, Value = crc32CtxData.End() }; dataChecksums.Add(chk); } if (enabled.HasFlag(EnableChecksum.Crc64)) { chk = new ChecksumType { type = ChecksumTypeType.crc64, Value = crc64CtxData.End() }; dataChecksums.Add(chk); } if (enabled.HasFlag(EnableChecksum.Md5)) { chk = new ChecksumType { type = ChecksumTypeType.md5, Value = md5CtxData.End() }; dataChecksums.Add(chk); } #if !NETSTANDARD2_0 if (enabled.HasFlag(EnableChecksum.Ripemd160)) { chk = new ChecksumType { type = ChecksumTypeType.ripemd160, Value = ripemd160CtxData.End() }; dataChecksums.Add(chk); } #endif if (enabled.HasFlag(EnableChecksum.Sha1)) { chk = new ChecksumType { type = ChecksumTypeType.sha1, Value = sha1CtxData.End() }; dataChecksums.Add(chk); } if (enabled.HasFlag(EnableChecksum.Sha256)) { chk = new ChecksumType { type = ChecksumTypeType.sha256, Value = sha256CtxData.End() }; dataChecksums.Add(chk); } if (enabled.HasFlag(EnableChecksum.Sha384)) { chk = new ChecksumType { type = ChecksumTypeType.sha384, Value = sha384CtxData.End() }; dataChecksums.Add(chk); } if (enabled.HasFlag(EnableChecksum.Sha512)) { chk = new ChecksumType { type = ChecksumTypeType.sha512, Value = sha512CtxData.End() }; dataChecksums.Add(chk); } if (enabled.HasFlag(EnableChecksum.SpamSum)) { chk = new ChecksumType { type = ChecksumTypeType.spamsum, Value = ssctxData.End() }; dataChecksums.Add(chk); } if (enabled.HasFlag(EnableChecksum.Fletcher16)) { chk = new ChecksumType { type = ChecksumTypeType.fletcher16, Value = f16CtxData.End() }; dataChecksums.Add(chk); } if (enabled.HasFlag(EnableChecksum.Fletcher32)) { chk = new ChecksumType { type = ChecksumTypeType.fletcher32, Value = f32CtxData.End() }; dataChecksums.Add(chk); } return(dataChecksums); }
public static BenchmarkResults Do(int bufferSize, int blockSize) { BenchmarkResults results = new BenchmarkResults { Entries = new Dictionary <string, BenchmarkEntry>(), MinMemory = long.MaxValue, MaxMemory = 0, SeparateTime = 0 }; MemoryStream ms = new MemoryStream(bufferSize); Random rnd = new Random(); DateTime start; DateTime end; start = DateTime.Now; InitProgress(); for (int i = 0; i < bufferSize / blockSize; i++) { UpdateProgress("Writing block {0} of {1} with random data.", i + 1, bufferSize / blockSize); byte[] tmp = new byte[blockSize]; rnd.NextBytes(tmp); ms.Write(tmp, 0, blockSize); } EndProgress(); end = DateTime.Now; results.FillTime = (end - start).TotalSeconds; results.FillSpeed = bufferSize / 1048576.0 / (end - start).TotalSeconds; ms.Seek(0, SeekOrigin.Begin); long mem = GC.GetTotalMemory(false); if (mem > results.MaxMemory) { results.MaxMemory = mem; } if (mem < results.MinMemory) { results.MinMemory = mem; } start = DateTime.Now; InitProgress(); for (int i = 0; i < bufferSize / blockSize; i++) { UpdateProgress("Reading block {0} of {1}.", i + 1, bufferSize / blockSize); byte[] tmp = new byte[blockSize]; ms.Read(tmp, 0, blockSize); } EndProgress(); end = DateTime.Now; mem = GC.GetTotalMemory(false); if (mem > results.MaxMemory) { results.MaxMemory = mem; } if (mem < results.MinMemory) { results.MinMemory = mem; } results.ReadTime = (end - start).TotalSeconds; results.ReadSpeed = bufferSize / 1048576.0 / (end - start).TotalSeconds; #region Adler32 IChecksum ctx = new Adler32Context(); ms.Seek(0, SeekOrigin.Begin); mem = GC.GetTotalMemory(false); if (mem > results.MaxMemory) { results.MaxMemory = mem; } if (mem < results.MinMemory) { results.MinMemory = mem; } start = DateTime.Now; InitProgress(); for (int i = 0; i < bufferSize / blockSize; i++) { UpdateProgress("Checksumming block {0} of {1} with Adler32.", i + 1, bufferSize / blockSize); byte[] tmp = new byte[blockSize]; ms.Read(tmp, 0, blockSize); ctx.Update(tmp); } EndProgress(); ctx.End(); end = DateTime.Now; mem = GC.GetTotalMemory(false); if (mem > results.MaxMemory) { results.MaxMemory = mem; } if (mem < results.MinMemory) { results.MinMemory = mem; } results.Entries.Add("Adler32", new BenchmarkEntry { TimeSpan = (end - start).TotalSeconds, Speed = bufferSize / 1048576.0 / (end - start).TotalSeconds }); results.SeparateTime += (end - start).TotalSeconds; #endregion Adler32 #region Fletcher16 ctx = new Fletcher16Context(); ms.Seek(0, SeekOrigin.Begin); mem = GC.GetTotalMemory(false); if (mem > results.MaxMemory) { results.MaxMemory = mem; } if (mem < results.MinMemory) { results.MinMemory = mem; } start = DateTime.Now; InitProgress(); for (int i = 0; i < bufferSize / blockSize; i++) { UpdateProgress("Checksumming block {0} of {1} with Fletcher-16.", i + 1, bufferSize / blockSize); byte[] tmp = new byte[blockSize]; ms.Read(tmp, 0, blockSize); ctx.Update(tmp); } EndProgress(); ctx.End(); end = DateTime.Now; mem = GC.GetTotalMemory(false); if (mem > results.MaxMemory) { results.MaxMemory = mem; } if (mem < results.MinMemory) { results.MinMemory = mem; } results.Entries.Add("Fletcher16", new BenchmarkEntry { TimeSpan = (end - start).TotalSeconds, Speed = bufferSize / 1048576.0 / (end - start).TotalSeconds }); results.SeparateTime += (end - start).TotalSeconds; #endregion Fletcher16 #region Fletcher32 ctx = new Fletcher32Context(); ms.Seek(0, SeekOrigin.Begin); mem = GC.GetTotalMemory(false); if (mem > results.MaxMemory) { results.MaxMemory = mem; } if (mem < results.MinMemory) { results.MinMemory = mem; } start = DateTime.Now; InitProgress(); for (int i = 0; i < bufferSize / blockSize; i++) { UpdateProgress("Checksumming block {0} of {1} with Fletcher-32.", i + 1, bufferSize / blockSize); byte[] tmp = new byte[blockSize]; ms.Read(tmp, 0, blockSize); ctx.Update(tmp); } EndProgress(); ctx.End(); end = DateTime.Now; mem = GC.GetTotalMemory(false); if (mem > results.MaxMemory) { results.MaxMemory = mem; } if (mem < results.MinMemory) { results.MinMemory = mem; } results.Entries.Add("Fletcher32", new BenchmarkEntry { TimeSpan = (end - start).TotalSeconds, Speed = bufferSize / 1048576.0 / (end - start).TotalSeconds }); results.SeparateTime += (end - start).TotalSeconds; #endregion Fletcher32 #region CRC16 ctx = new Crc16Context(); ms.Seek(0, SeekOrigin.Begin); mem = GC.GetTotalMemory(false); if (mem > results.MaxMemory) { results.MaxMemory = mem; } if (mem < results.MinMemory) { results.MinMemory = mem; } start = DateTime.Now; InitProgress(); for (int i = 0; i < bufferSize / blockSize; i++) { UpdateProgress("Checksumming block {0} of {1} with CRC16.", i + 1, bufferSize / blockSize); byte[] tmp = new byte[blockSize]; ms.Read(tmp, 0, blockSize); ctx.Update(tmp); } EndProgress(); ctx.End(); end = DateTime.Now; mem = GC.GetTotalMemory(false); if (mem > results.MaxMemory) { results.MaxMemory = mem; } if (mem < results.MinMemory) { results.MinMemory = mem; } results.Entries.Add("CRC16", new BenchmarkEntry { TimeSpan = (end - start).TotalSeconds, Speed = bufferSize / 1048576.0 / (end - start).TotalSeconds }); results.SeparateTime += (end - start).TotalSeconds; #endregion CRC16 #region CRC32 ctx = new Crc32Context(); ms.Seek(0, SeekOrigin.Begin); mem = GC.GetTotalMemory(false); if (mem > results.MaxMemory) { results.MaxMemory = mem; } if (mem < results.MinMemory) { results.MinMemory = mem; } start = DateTime.Now; InitProgress(); for (int i = 0; i < bufferSize / blockSize; i++) { UpdateProgress("Checksumming block {0} of {1} with CRC32.", i + 1, bufferSize / blockSize); byte[] tmp = new byte[blockSize]; ms.Read(tmp, 0, blockSize); ctx.Update(tmp); } EndProgress(); ctx.End(); end = DateTime.Now; mem = GC.GetTotalMemory(false); if (mem > results.MaxMemory) { results.MaxMemory = mem; } if (mem < results.MinMemory) { results.MinMemory = mem; } results.Entries.Add("CRC32", new BenchmarkEntry { TimeSpan = (end - start).TotalSeconds, Speed = bufferSize / 1048576.0 / (end - start).TotalSeconds }); results.SeparateTime += (end - start).TotalSeconds; #endregion CRC32 #region CRC64 ctx = new Crc64Context(); ms.Seek(0, SeekOrigin.Begin); mem = GC.GetTotalMemory(false); if (mem > results.MaxMemory) { results.MaxMemory = mem; } if (mem < results.MinMemory) { results.MinMemory = mem; } start = DateTime.Now; InitProgress(); for (int i = 0; i < bufferSize / blockSize; i++) { UpdateProgress("Checksumming block {0} of {1} with CRC64.", i + 1, bufferSize / blockSize); byte[] tmp = new byte[blockSize]; ms.Read(tmp, 0, blockSize); ctx.Update(tmp); } EndProgress(); ctx.End(); end = DateTime.Now; mem = GC.GetTotalMemory(false); if (mem > results.MaxMemory) { results.MaxMemory = mem; } if (mem < results.MinMemory) { results.MinMemory = mem; } results.Entries.Add("CRC64", new BenchmarkEntry { TimeSpan = (end - start).TotalSeconds, Speed = bufferSize / 1048576.0 / (end - start).TotalSeconds }); results.SeparateTime += (end - start).TotalSeconds; #endregion CRC64 #region MD5 ctx = new Md5Context(); ms.Seek(0, SeekOrigin.Begin); mem = GC.GetTotalMemory(false); if (mem > results.MaxMemory) { results.MaxMemory = mem; } if (mem < results.MinMemory) { results.MinMemory = mem; } start = DateTime.Now; InitProgress(); for (int i = 0; i < bufferSize / blockSize; i++) { UpdateProgress("Checksumming block {0} of {1} with MD5.", i + 1, bufferSize / blockSize); byte[] tmp = new byte[blockSize]; ms.Read(tmp, 0, blockSize); ctx.Update(tmp); } EndProgress(); ctx.End(); end = DateTime.Now; mem = GC.GetTotalMemory(false); if (mem > results.MaxMemory) { results.MaxMemory = mem; } if (mem < results.MinMemory) { results.MinMemory = mem; } results.Entries.Add("MD5", new BenchmarkEntry { TimeSpan = (end - start).TotalSeconds, Speed = bufferSize / 1048576.0 / (end - start).TotalSeconds }); results.SeparateTime += (end - start).TotalSeconds; #endregion MD5 #if !NETSTANDARD2_0 #region RIPEMD160 ctx = new Ripemd160Context(); ms.Seek(0, SeekOrigin.Begin); mem = GC.GetTotalMemory(false); if (mem > results.MaxMemory) { results.MaxMemory = mem; } if (mem < results.MinMemory) { results.MinMemory = mem; } start = DateTime.Now; InitProgress(); for (int i = 0; i < bufferSize / blockSize; i++) { UpdateProgress("Checksumming block {0} of {1} with RIPEMD160.", i + 1, bufferSize / blockSize); byte[] tmp = new byte[blockSize]; ms.Read(tmp, 0, blockSize); ctx.Update(tmp); } EndProgress(); ctx.End(); end = DateTime.Now; mem = GC.GetTotalMemory(false); if (mem > results.MaxMemory) { results.MaxMemory = mem; } if (mem < results.MinMemory) { results.MinMemory = mem; } results.Entries.Add("RIPEMD160", new BenchmarkEntry { TimeSpan = (end - start).TotalSeconds, Speed = bufferSize / 1048576.0 / (end - start).TotalSeconds }); results.SeparateTime += (end - start).TotalSeconds; #endregion RIPEMD160 #endif #region SHA1 ctx = new Sha1Context(); ms.Seek(0, SeekOrigin.Begin); mem = GC.GetTotalMemory(false); if (mem > results.MaxMemory) { results.MaxMemory = mem; } if (mem < results.MinMemory) { results.MinMemory = mem; } start = DateTime.Now; InitProgress(); for (int i = 0; i < bufferSize / blockSize; i++) { UpdateProgress("Checksumming block {0} of {1} with SHA1.", i + 1, bufferSize / blockSize); byte[] tmp = new byte[blockSize]; ms.Read(tmp, 0, blockSize); ctx.Update(tmp); } EndProgress(); ctx.End(); end = DateTime.Now; mem = GC.GetTotalMemory(false); if (mem > results.MaxMemory) { results.MaxMemory = mem; } if (mem < results.MinMemory) { results.MinMemory = mem; } results.Entries.Add("SHA1", new BenchmarkEntry { TimeSpan = (end - start).TotalSeconds, Speed = bufferSize / 1048576.0 / (end - start).TotalSeconds }); results.SeparateTime += (end - start).TotalSeconds; #endregion SHA1 #region SHA256 ctx = new Sha256Context(); ms.Seek(0, SeekOrigin.Begin); mem = GC.GetTotalMemory(false); if (mem > results.MaxMemory) { results.MaxMemory = mem; } if (mem < results.MinMemory) { results.MinMemory = mem; } start = DateTime.Now; InitProgress(); for (int i = 0; i < bufferSize / blockSize; i++) { UpdateProgress("Checksumming block {0} of {1} with SHA256.", i + 1, bufferSize / blockSize); byte[] tmp = new byte[blockSize]; ms.Read(tmp, 0, blockSize); ctx.Update(tmp); } EndProgress(); ctx.End(); end = DateTime.Now; mem = GC.GetTotalMemory(false); if (mem > results.MaxMemory) { results.MaxMemory = mem; } if (mem < results.MinMemory) { results.MinMemory = mem; } results.Entries.Add("SHA256", new BenchmarkEntry { TimeSpan = (end - start).TotalSeconds, Speed = bufferSize / 1048576.0 / (end - start).TotalSeconds }); results.SeparateTime += (end - start).TotalSeconds; #endregion SHA256 #region SHA384 ctx = new Sha384Context(); ms.Seek(0, SeekOrigin.Begin); mem = GC.GetTotalMemory(false); if (mem > results.MaxMemory) { results.MaxMemory = mem; } if (mem < results.MinMemory) { results.MinMemory = mem; } start = DateTime.Now; InitProgress(); for (int i = 0; i < bufferSize / blockSize; i++) { UpdateProgress("Checksumming block {0} of {1} with SHA384.", i + 1, bufferSize / blockSize); byte[] tmp = new byte[blockSize]; ms.Read(tmp, 0, blockSize); ctx.Update(tmp); } EndProgress(); ctx.End(); end = DateTime.Now; mem = GC.GetTotalMemory(false); if (mem > results.MaxMemory) { results.MaxMemory = mem; } if (mem < results.MinMemory) { results.MinMemory = mem; } results.Entries.Add("SHA384", new BenchmarkEntry { TimeSpan = (end - start).TotalSeconds, Speed = bufferSize / 1048576.0 / (end - start).TotalSeconds }); results.SeparateTime += (end - start).TotalSeconds; #endregion SHA384 #region SHA512 ctx = new Sha512Context(); ms.Seek(0, SeekOrigin.Begin); mem = GC.GetTotalMemory(false); if (mem > results.MaxMemory) { results.MaxMemory = mem; } if (mem < results.MinMemory) { results.MinMemory = mem; } start = DateTime.Now; InitProgress(); for (int i = 0; i < bufferSize / blockSize; i++) { UpdateProgress("Checksumming block {0} of {1} with SHA512.", i + 1, bufferSize / blockSize); byte[] tmp = new byte[blockSize]; ms.Read(tmp, 0, blockSize); ctx.Update(tmp); } EndProgress(); ctx.End(); end = DateTime.Now; mem = GC.GetTotalMemory(false); if (mem > results.MaxMemory) { results.MaxMemory = mem; } if (mem < results.MinMemory) { results.MinMemory = mem; } results.Entries.Add("SHA512", new BenchmarkEntry { TimeSpan = (end - start).TotalSeconds, Speed = bufferSize / 1048576.0 / (end - start).TotalSeconds }); results.SeparateTime += (end - start).TotalSeconds; #endregion SHA512 #region SpamSum ctx = new SpamSumContext(); ms.Seek(0, SeekOrigin.Begin); mem = GC.GetTotalMemory(false); if (mem > results.MaxMemory) { results.MaxMemory = mem; } if (mem < results.MinMemory) { results.MinMemory = mem; } start = DateTime.Now; InitProgress(); for (int i = 0; i < bufferSize / blockSize; i++) { UpdateProgress("Checksumming block {0} of {1} with SpamSum.", i + 1, bufferSize / blockSize); byte[] tmp = new byte[blockSize]; ms.Read(tmp, 0, blockSize); ctx.Update(tmp); } EndProgress(); ctx.End(); end = DateTime.Now; mem = GC.GetTotalMemory(false); if (mem > results.MaxMemory) { results.MaxMemory = mem; } if (mem < results.MinMemory) { results.MinMemory = mem; } results.Entries.Add("SpamSum", new BenchmarkEntry { TimeSpan = (end - start).TotalSeconds, Speed = bufferSize / 1048576.0 / (end - start).TotalSeconds }); results.SeparateTime += (end - start).TotalSeconds; #endregion SpamSum #region Entropy ulong[] entTable = new ulong[256]; ms.Seek(0, SeekOrigin.Begin); mem = GC.GetTotalMemory(false); if (mem > results.MaxMemory) { results.MaxMemory = mem; } if (mem < results.MinMemory) { results.MinMemory = mem; } start = DateTime.Now; InitProgress(); for (int i = 0; i < bufferSize / blockSize; i++) { UpdateProgress("Entropying block {0} of {1}.", i + 1, bufferSize / blockSize); byte[] tmp = new byte[blockSize]; ms.Read(tmp, 0, blockSize); foreach (byte b in tmp) { entTable[b]++; } } EndProgress(); end = DateTime.Now; mem = GC.GetTotalMemory(false); if (mem > results.MaxMemory) { results.MaxMemory = mem; } if (mem < results.MinMemory) { results.MinMemory = mem; } results.EntropyTime = (end - start).TotalSeconds; results.EntropySpeed = bufferSize / 1048576.0 / (end - start).TotalSeconds; #endregion Entropy /* #region Multitasking * start = DateTime.Now; * Checksum allChecksums = new Checksum(); * InitProgress(); * for(int i = 0; i < bufferSize / blockSize; i++) * { * UpdateProgress("Checksumming block {0} of {1} with all algorithms at the same time.", i + 1, * bufferSize / blockSize); * byte[] tmp = new byte[blockSize]; * ms.Read(tmp, 0, blockSize); * * allChecksums.Update(tmp); * } * * EndProgress(); * * allChecksums.End(); * end = DateTime.Now; * mem = GC.GetTotalMemory(false); * if(mem > results.MaxMemory) results.MaxMemory = mem; * if(mem < results.MinMemory) results.MinMemory = mem; * * results.TotalTime = (end - start).TotalSeconds; * results.TotalSpeed = bufferSize / 1048576.0 / results.TotalTime; #endregion */ results.SeparateSpeed = bufferSize / 1048576.0 / results.SeparateTime; return(results); }
public void EmptyFile() { byte[] result = Crc64Context.File(Path.Combine(Consts.TEST_FILES_ROOT, "Checksum test files", "empty")); result.Should().BeEquivalentTo(_expectedEmpty); }
public void Crc64EmptyFile() { byte[] result = Crc64Context.File(Path.Combine(Consts.TestFilesRoot, "checksums", "empty")); Assert.AreEqual(ExpectedEmpty, result); }
public void Crc64RandomFile() { byte[] result = Crc64Context.File(Path.Combine(Consts.TestFilesRoot, "checksums", "random")); Assert.AreEqual(ExpectedRandom, result); }
public void Crc64EmptyFile() { byte[] result = Crc64Context.File(Path.Combine(Consts.TEST_FILES_ROOT, "Checksum test files", "empty")); Assert.AreEqual(_expectedEmpty, result); }
public bool?VerifyMediaImage() { // This will traverse all blocks and check their CRC64 without uncompressing them AaruConsole.DebugWriteLine("Aaru Format plugin", "Checking index integrity at {0}", _header.indexOffset); _imageStream.Position = (long)_header.indexOffset; _structureBytes = new byte[Marshal.SizeOf <IndexHeader>()]; _imageStream.Read(_structureBytes, 0, _structureBytes.Length); IndexHeader idxHeader = Marshal.SpanToStructureLittleEndian <IndexHeader>(_structureBytes); if (idxHeader.identifier != BlockType.Index) { AaruConsole.DebugWriteLine("Aaru Format plugin", "Incorrect index identifier"); return(false); } AaruConsole.DebugWriteLine("Aaru Format plugin", "Index at {0} contains {1} entries", _header.indexOffset, idxHeader.entries); _structureBytes = new byte[Marshal.SizeOf <IndexEntry>() * idxHeader.entries]; _imageStream.Read(_structureBytes, 0, _structureBytes.Length); Crc64Context.Data(_structureBytes, out byte[] verifyCrc); if (BitConverter.ToUInt64(verifyCrc, 0) != idxHeader.crc64) { AaruConsole.DebugWriteLine("Aaru Format plugin", "Expected index CRC {0:X16} but got {1:X16}", idxHeader.crc64, BitConverter.ToUInt64(verifyCrc, 0)); return(false); } _imageStream.Position -= _structureBytes.Length; List <IndexEntry> vrIndex = new List <IndexEntry>(); for (ushort i = 0; i < idxHeader.entries; i++) { _structureBytes = new byte[Marshal.SizeOf <IndexEntry>()]; _imageStream.Read(_structureBytes, 0, _structureBytes.Length); IndexEntry entry = Marshal.SpanToStructureLittleEndian <IndexEntry>(_structureBytes); AaruConsole.DebugWriteLine("Aaru Format plugin", "Block type {0} with data type {1} is indexed to be at {2}", entry.blockType, entry.dataType, entry.offset); vrIndex.Add(entry); } // Read up to 1MiB at a time for verification const int verifySize = 1024 * 1024; foreach (IndexEntry entry in vrIndex) { _imageStream.Position = (long)entry.offset; Crc64Context crcVerify; ulong readBytes; byte[] verifyBytes; switch (entry.blockType) { case BlockType.DataBlock: _structureBytes = new byte[Marshal.SizeOf <BlockHeader>()]; _imageStream.Read(_structureBytes, 0, _structureBytes.Length); BlockHeader blockHeader = Marshal.SpanToStructureLittleEndian <BlockHeader>(_structureBytes); crcVerify = new Crc64Context(); readBytes = 0; AaruConsole.DebugWriteLine("Aaru Format plugin", "Verifying data block type {0} at position {1}", entry.dataType, entry.offset); while (readBytes + verifySize < blockHeader.cmpLength) { verifyBytes = new byte[verifySize]; _imageStream.Read(verifyBytes, 0, verifyBytes.Length); crcVerify.Update(verifyBytes); readBytes += (ulong)verifyBytes.LongLength; } verifyBytes = new byte[blockHeader.cmpLength - readBytes]; _imageStream.Read(verifyBytes, 0, verifyBytes.Length); crcVerify.Update(verifyBytes); verifyCrc = crcVerify.Final(); if (BitConverter.ToUInt64(verifyCrc, 0) != blockHeader.cmpCrc64) { AaruConsole.DebugWriteLine("Aaru Format plugin", "Expected block CRC {0:X16} but got {1:X16}", blockHeader.cmpCrc64, BitConverter.ToUInt64(verifyCrc, 0)); return(false); } break; case BlockType.DeDuplicationTable: _structureBytes = new byte[Marshal.SizeOf <DdtHeader>()]; _imageStream.Read(_structureBytes, 0, _structureBytes.Length); DdtHeader ddtHeader = Marshal.SpanToStructureLittleEndian <DdtHeader>(_structureBytes); crcVerify = new Crc64Context(); readBytes = 0; AaruConsole.DebugWriteLine("Aaru Format plugin", "Verifying deduplication table type {0} at position {1}", entry.dataType, entry.offset); while (readBytes + verifySize < ddtHeader.cmpLength) { verifyBytes = new byte[readBytes]; _imageStream.Read(verifyBytes, 0, verifyBytes.Length); crcVerify.Update(verifyBytes); readBytes += (ulong)verifyBytes.LongLength; } verifyBytes = new byte[ddtHeader.cmpLength - readBytes]; _imageStream.Read(verifyBytes, 0, verifyBytes.Length); crcVerify.Update(verifyBytes); verifyCrc = crcVerify.Final(); if (BitConverter.ToUInt64(verifyCrc, 0) != ddtHeader.cmpCrc64) { AaruConsole.DebugWriteLine("Aaru Format plugin", "Expected DDT CRC {0:X16} but got {1:X16}", ddtHeader.cmpCrc64, BitConverter.ToUInt64(verifyCrc, 0)); return(false); } break; case BlockType.TracksBlock: _structureBytes = new byte[Marshal.SizeOf <TracksHeader>()]; _imageStream.Read(_structureBytes, 0, _structureBytes.Length); TracksHeader trkHeader = Marshal.SpanToStructureLittleEndian <TracksHeader>(_structureBytes); AaruConsole.DebugWriteLine("Aaru Format plugin", "Track block at {0} contains {1} entries", _header.indexOffset, trkHeader.entries); _structureBytes = new byte[Marshal.SizeOf <TrackEntry>() * trkHeader.entries]; _imageStream.Read(_structureBytes, 0, _structureBytes.Length); Crc64Context.Data(_structureBytes, out verifyCrc); if (BitConverter.ToUInt64(verifyCrc, 0) != trkHeader.crc64) { AaruConsole.DebugWriteLine("Aaru Format plugin", "Expected index CRC {0:X16} but got {1:X16}", trkHeader.crc64, BitConverter.ToUInt64(verifyCrc, 0)); return(false); } break; default: AaruConsole.DebugWriteLine("Aaru Format plugin", "Ignored field type {0}", entry.blockType); break; } } return(true); }
internal static List <ChecksumType> GetChecksums(byte[] data) { Adler32Context adler32ctxData = new Adler32Context(); Crc16Context crc16ctxData = new Crc16Context(); Crc32Context crc32ctxData = new Crc32Context(); Crc64Context crc64ctxData = new Crc64Context(); Md5Context md5ctxData = new Md5Context(); Ripemd160Context ripemd160ctxData = new Ripemd160Context(); Sha1Context sha1ctxData = new Sha1Context(); Sha256Context sha256ctxData = new Sha256Context(); Sha384Context sha384ctxData = new Sha384Context(); Sha512Context sha512ctxData = new Sha512Context(); SpamSumContext ssctxData = new SpamSumContext(); Thread adlerThreadData = new Thread(updateAdler); Thread crc16ThreadData = new Thread(updateCRC16); Thread crc32ThreadData = new Thread(updateCRC32); Thread crc64ThreadData = new Thread(updateCRC64); Thread md5ThreadData = new Thread(updateMD5); Thread ripemd160ThreadData = new Thread(updateRIPEMD160); Thread sha1ThreadData = new Thread(updateSHA1); Thread sha256ThreadData = new Thread(updateSHA256); Thread sha384ThreadData = new Thread(updateSHA384); Thread sha512ThreadData = new Thread(updateSHA512); Thread spamsumThreadData = new Thread(updateSpamSum); adlerPacket adlerPktData = new adlerPacket(); crc16Packet crc16PktData = new crc16Packet(); crc32Packet crc32PktData = new crc32Packet(); crc64Packet crc64PktData = new crc64Packet(); md5Packet md5PktData = new md5Packet(); ripemd160Packet ripemd160PktData = new ripemd160Packet(); sha1Packet sha1PktData = new sha1Packet(); sha256Packet sha256PktData = new sha256Packet(); sha384Packet sha384PktData = new sha384Packet(); sha512Packet sha512PktData = new sha512Packet(); spamsumPacket spamsumPktData = new spamsumPacket(); adler32ctxData.Init(); adlerPktData.context = adler32ctxData; crc16ctxData.Init(); crc16PktData.context = crc16ctxData; crc32ctxData.Init(); crc32PktData.context = crc32ctxData; crc64ctxData.Init(); crc64PktData.context = crc64ctxData; md5ctxData.Init(); md5PktData.context = md5ctxData; ripemd160ctxData.Init(); ripemd160PktData.context = ripemd160ctxData; sha1ctxData.Init(); sha1PktData.context = sha1ctxData; sha256ctxData.Init(); sha256PktData.context = sha256ctxData; sha384ctxData.Init(); sha384PktData.context = sha384ctxData; sha512ctxData.Init(); sha512PktData.context = sha512ctxData; ssctxData.Init(); spamsumPktData.context = ssctxData; adlerPktData.data = data; adlerThreadData.Start(adlerPktData); crc16PktData.data = data; crc16ThreadData.Start(crc16PktData); crc32PktData.data = data; crc32ThreadData.Start(crc32PktData); crc64PktData.data = data; crc64ThreadData.Start(crc64PktData); md5PktData.data = data; md5ThreadData.Start(md5PktData); ripemd160PktData.data = data; ripemd160ThreadData.Start(ripemd160PktData); sha1PktData.data = data; sha1ThreadData.Start(sha1PktData); sha256PktData.data = data; sha256ThreadData.Start(sha256PktData); sha384PktData.data = data; sha384ThreadData.Start(sha384PktData); sha512PktData.data = data; sha512ThreadData.Start(sha512PktData); spamsumPktData.data = data; spamsumThreadData.Start(spamsumPktData); while (adlerThreadData.IsAlive || crc16ThreadData.IsAlive || crc32ThreadData.IsAlive || crc64ThreadData.IsAlive || md5ThreadData.IsAlive || ripemd160ThreadData.IsAlive || sha1ThreadData.IsAlive || sha256ThreadData.IsAlive || sha384ThreadData.IsAlive || sha512ThreadData.IsAlive || spamsumThreadData.IsAlive) { } List <ChecksumType> dataChecksums = new List <ChecksumType>(); ChecksumType chk = new ChecksumType { type = ChecksumTypeType.adler32, Value = adler32ctxData.End() }; dataChecksums.Add(chk); chk = new ChecksumType { type = ChecksumTypeType.crc16, Value = crc16ctxData.End() }; dataChecksums.Add(chk); chk = new ChecksumType { type = ChecksumTypeType.crc32, Value = crc32ctxData.End() }; dataChecksums.Add(chk); chk = new ChecksumType { type = ChecksumTypeType.crc64, Value = crc64ctxData.End() }; dataChecksums.Add(chk); chk = new ChecksumType { type = ChecksumTypeType.md5, Value = md5ctxData.End() }; dataChecksums.Add(chk); chk = new ChecksumType { type = ChecksumTypeType.ripemd160, Value = ripemd160ctxData.End() }; dataChecksums.Add(chk); chk = new ChecksumType { type = ChecksumTypeType.sha1, Value = sha1ctxData.End() }; dataChecksums.Add(chk); chk = new ChecksumType { type = ChecksumTypeType.sha256, Value = sha256ctxData.End() }; dataChecksums.Add(chk); chk = new ChecksumType { type = ChecksumTypeType.sha384, Value = sha384ctxData.End() }; dataChecksums.Add(chk); chk = new ChecksumType { type = ChecksumTypeType.sha512, Value = sha512ctxData.End() }; dataChecksums.Add(chk); chk = new ChecksumType { type = ChecksumTypeType.spamsum, Value = ssctxData.End() }; dataChecksums.Add(chk); return(dataChecksums); }
public bool?VerifyMediaImage() { // This will traverse all blocks and check their CRC64 without uncompressing them DicConsole.DebugWriteLine("DiscImageChef format plugin", "Checking index integrity at {0}", header.indexOffset); imageStream.Position = (long)header.indexOffset; IndexHeader idxHeader = new IndexHeader(); structureBytes = new byte[Marshal.SizeOf(idxHeader)]; imageStream.Read(structureBytes, 0, structureBytes.Length); structurePointer = Marshal.AllocHGlobal(Marshal.SizeOf(idxHeader)); Marshal.Copy(structureBytes, 0, structurePointer, Marshal.SizeOf(idxHeader)); idxHeader = (IndexHeader)Marshal.PtrToStructure(structurePointer, typeof(IndexHeader)); Marshal.FreeHGlobal(structurePointer); if (idxHeader.identifier != BlockType.Index) { DicConsole.DebugWriteLine("DiscImageChef format plugin", "Incorrect index identifier"); return(false); } DicConsole.DebugWriteLine("DiscImageChef format plugin", "Index at {0} contains {1} entries", header.indexOffset, idxHeader.entries); structureBytes = new byte[Marshal.SizeOf(typeof(IndexEntry)) * idxHeader.entries]; imageStream.Read(structureBytes, 0, structureBytes.Length); Crc64Context.Data(structureBytes, out byte[] verifyCrc); if (BitConverter.ToUInt64(verifyCrc, 0) != idxHeader.crc64) { DicConsole.DebugWriteLine("DiscImageChef format plugin", "Expected index CRC {0:X16} but got {1:X16}", idxHeader.crc64, BitConverter.ToUInt64(verifyCrc, 0)); return(false); } imageStream.Position -= structureBytes.Length; List <IndexEntry> vrIndex = new List <IndexEntry>(); for (ushort i = 0; i < idxHeader.entries; i++) { IndexEntry entry = new IndexEntry(); structureBytes = new byte[Marshal.SizeOf(entry)]; imageStream.Read(structureBytes, 0, structureBytes.Length); structurePointer = Marshal.AllocHGlobal(Marshal.SizeOf(entry)); Marshal.Copy(structureBytes, 0, structurePointer, Marshal.SizeOf(entry)); entry = (IndexEntry)Marshal.PtrToStructure(structurePointer, typeof(IndexEntry)); Marshal.FreeHGlobal(structurePointer); DicConsole.DebugWriteLine("DiscImageChef format plugin", "Block type {0} with data type {1} is indexed to be at {2}", entry.blockType, entry.dataType, entry.offset); vrIndex.Add(entry); } // Read up to 1MiB at a time for verification const int VERIFY_SIZE = 1024 * 1024; foreach (IndexEntry entry in vrIndex) { imageStream.Position = (long)entry.offset; Crc64Context crcVerify; ulong readBytes; byte[] verifyBytes; switch (entry.blockType) { case BlockType.DataBlock: BlockHeader blockHeader = new BlockHeader(); structureBytes = new byte[Marshal.SizeOf(blockHeader)]; imageStream.Read(structureBytes, 0, structureBytes.Length); structurePointer = Marshal.AllocHGlobal(Marshal.SizeOf(blockHeader)); Marshal.Copy(structureBytes, 0, structurePointer, Marshal.SizeOf(blockHeader)); blockHeader = (BlockHeader)Marshal.PtrToStructure(structurePointer, typeof(BlockHeader)); Marshal.FreeHGlobal(structurePointer); crcVerify = new Crc64Context(); readBytes = 0; DicConsole.DebugWriteLine("DiscImageChef format plugin", "Verifying data block type {0} at position {1}", entry.dataType, entry.offset); while (readBytes + VERIFY_SIZE < blockHeader.cmpLength) { verifyBytes = new byte[VERIFY_SIZE]; imageStream.Read(verifyBytes, 0, verifyBytes.Length); crcVerify.Update(verifyBytes); readBytes += (ulong)verifyBytes.LongLength; } verifyBytes = new byte[blockHeader.cmpLength - readBytes]; imageStream.Read(verifyBytes, 0, verifyBytes.Length); crcVerify.Update(verifyBytes); verifyCrc = crcVerify.Final(); if (BitConverter.ToUInt64(verifyCrc, 0) != blockHeader.cmpCrc64) { DicConsole.DebugWriteLine("DiscImageChef format plugin", "Expected block CRC {0:X16} but got {1:X16}", blockHeader.cmpCrc64, BitConverter.ToUInt64(verifyCrc, 0)); return(false); } break; case BlockType.DeDuplicationTable: DdtHeader ddtHeader = new DdtHeader(); structureBytes = new byte[Marshal.SizeOf(ddtHeader)]; imageStream.Read(structureBytes, 0, structureBytes.Length); structurePointer = Marshal.AllocHGlobal(Marshal.SizeOf(ddtHeader)); Marshal.Copy(structureBytes, 0, structurePointer, Marshal.SizeOf(ddtHeader)); ddtHeader = (DdtHeader)Marshal.PtrToStructure(structurePointer, typeof(DdtHeader)); Marshal.FreeHGlobal(structurePointer); crcVerify = new Crc64Context(); readBytes = 0; DicConsole.DebugWriteLine("DiscImageChef format plugin", "Verifying deduplication table type {0} at position {1}", entry.dataType, entry.offset); while (readBytes + VERIFY_SIZE < ddtHeader.cmpLength) { verifyBytes = new byte[readBytes]; imageStream.Read(verifyBytes, 0, verifyBytes.Length); crcVerify.Update(verifyBytes); readBytes += (ulong)verifyBytes.LongLength; } verifyBytes = new byte[ddtHeader.cmpLength - readBytes]; imageStream.Read(verifyBytes, 0, verifyBytes.Length); crcVerify.Update(verifyBytes); verifyCrc = crcVerify.Final(); if (BitConverter.ToUInt64(verifyCrc, 0) != ddtHeader.cmpCrc64) { DicConsole.DebugWriteLine("DiscImageChef format plugin", "Expected DDT CRC {0:X16} but got {1:X16}", ddtHeader.cmpCrc64, BitConverter.ToUInt64(verifyCrc, 0)); return(false); } break; case BlockType.TracksBlock: TracksHeader trkHeader = new TracksHeader(); structureBytes = new byte[Marshal.SizeOf(trkHeader)]; imageStream.Read(structureBytes, 0, structureBytes.Length); structurePointer = Marshal.AllocHGlobal(Marshal.SizeOf(trkHeader)); Marshal.Copy(structureBytes, 0, structurePointer, Marshal.SizeOf(trkHeader)); trkHeader = (TracksHeader)Marshal.PtrToStructure(structurePointer, typeof(TracksHeader)); Marshal.FreeHGlobal(structurePointer); DicConsole.DebugWriteLine("DiscImageChef format plugin", "Track block at {0} contains {1} entries", header.indexOffset, trkHeader.entries); structureBytes = new byte[Marshal.SizeOf(typeof(TrackEntry)) * trkHeader.entries]; imageStream.Read(structureBytes, 0, structureBytes.Length); Crc64Context.Data(structureBytes, out verifyCrc); if (BitConverter.ToUInt64(verifyCrc, 0) != trkHeader.crc64) { DicConsole.DebugWriteLine("DiscImageChef format plugin", "Expected index CRC {0:X16} but got {1:X16}", trkHeader.crc64, BitConverter.ToUInt64(verifyCrc, 0)); return(false); } break; default: DicConsole.DebugWriteLine("DiscImageChef format plugin", "Ignored field type {0}", entry.blockType); break; } } return(true); }
public void Crc64RandomFile() { byte[] result = Crc64Context.File(Path.Combine(Consts.TEST_FILES_ROOT, "Checksum test files", "random")); Assert.AreEqual(_expectedRandom, result); }