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Implemented SpamSum fuzzy hashing.

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This commit is contained in:
Natalia Portillo
2015-04-19 01:27:17 +01:00
parent 5fbcf3e96e
commit 72e5c9983c
7 changed files with 563 additions and 3 deletions
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15
DiscImageChef/Commands/Checksum.cs
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@@ -63,6 +63,7 @@ namespace DiscImageChef.Commands
Console.WriteLine("--sha256={0}", options.DoSHA256);
Console.WriteLine("--sha384={0}", options.DoSHA384);
Console.WriteLine("--sha512={0}", options.DoSHA512);
Console.WriteLine("--spamsum={0}", options.DoSpamSum);
}
//throw new NotImplementedException("Checksumming not yet implemented.");
@@ -95,6 +96,7 @@ namespace DiscImageChef.Commands
SHA256Context sha256ctxTrack = new SHA256Context();
SHA384Context sha384ctxTrack = new SHA384Context();
SHA512Context sha512ctxTrack = new SHA512Context();
SpamSumContext ssctxTrack = new SpamSumContext();
if (options.DoAdler32)
adler32ctxTrack.Init();
@@ -120,6 +122,8 @@ namespace DiscImageChef.Commands
sha384ctxTrack.Init();
if (options.DoSHA512)
sha512ctxTrack.Init();
if (options.DoSpamSum)
ssctxTrack.Init();
ulong sectors = currentTrack.TrackEndSector - currentTrack.TrackStartSector + 1;
Console.WriteLine("Track {0} has {1} sectors", currentTrack.TrackSequence, sectors);
@@ -152,6 +156,8 @@ namespace DiscImageChef.Commands
sha384ctxTrack.Update(sector);
if (options.DoSHA512)
sha512ctxTrack.Update(sector);
if (options.DoSpamSum)
ssctxTrack.Update(sector);
}
Console.WriteLine();
@@ -180,6 +186,8 @@ namespace DiscImageChef.Commands
Console.WriteLine("Track {0}'s SHA384: {1}", currentTrack.TrackSequence, sha384ctxTrack.End());
if (options.DoSHA512)
Console.WriteLine("Track {0}'s SHA512: {1}", currentTrack.TrackSequence, sha512ctxTrack.End());
if (options.DoSpamSum)
Console.WriteLine("Track {0}'s SpamSum: {1}", currentTrack.TrackSequence, ssctxTrack.End());
}
}
catch (Exception ex)
@@ -206,6 +214,7 @@ namespace DiscImageChef.Commands
SHA256Context sha256ctx = new SHA256Context();
SHA384Context sha384ctx = new SHA384Context();
SHA512Context sha512ctx = new SHA512Context();
SpamSumContext ssctx = new SpamSumContext();
if (options.DoAdler32)
adler32ctx.Init();
@@ -231,6 +240,8 @@ namespace DiscImageChef.Commands
sha384ctx.Init();
if (options.DoSHA512)
sha512ctx.Init();
if (options.DoSpamSum)
ssctx.Init();
ulong sectors = inputFormat.GetSectors();
Console.WriteLine("Sectors {0}", sectors);
@@ -263,6 +274,8 @@ namespace DiscImageChef.Commands
sha384ctx.Update(sector);
if (options.DoSHA512)
sha512ctx.Update(sector);
if (options.DoSpamSum)
ssctx.Update(sector);
}
Console.WriteLine();
@@ -291,6 +304,8 @@ namespace DiscImageChef.Commands
Console.WriteLine("Disk's SHA384: {0}", sha384ctx.End());
if (options.DoSHA512)
Console.WriteLine("Disk's SHA512: {0}", sha512ctx.End());
if (options.DoSpamSum)
Console.WriteLine("Disk's SpamSum: {0}", ssctx.End());
}
}
}