Fix bug for small encrypted regions

Finalise old dotnet support
Trim DiscUtils further
2024-03-12 19:42:23 +09:00 · 2024-03-12 19:08:42 +09:00 · 2024-03-06 14:14:37 +09:00 · 2024-03-06 12:09:30 +09:00 · 2024-03-06 12:09:15 +09:00 · 2024-03-05 23:34:38 +09:00
12 changed files with 353 additions and 313 deletions
@@ -1,3 +1,3 @@
 [submodule "DiscUtils"]
-	path = DiscUtils
+	path = LibIRD/DiscUtils
 	url = https://github.com/Deterous/DiscUtils
@@ -7,9 +7,11 @@
    <AssemblyName>irdkit</AssemblyName>
 	<TargetFrameworks>net6.0;net7.0;net8.0</TargetFrameworks>
    <RuntimeIdentifiers>win-x86;win-x64;win-arm64;linux-x64;linux-arm64;osx-x64;osx-arm64</RuntimeIdentifiers>
+    <CheckEolTargetFramework>false</CheckEolTargetFramework>
    <LangVersion>latest</LangVersion>
+    <SuppressTfmSupportBuildWarnings>true</SuppressTfmSupportBuildWarnings>
    <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
-    <Version>0.6.1</Version>
+    <Version>0.8.0</Version>
    
    <!-- Package Properties -->
    <Authors>Deterous</Authors>
@@ -27,11 +29,13 @@
  </ItemGroup>

  <ItemGroup>
-    <ProjectReference Include="..\LibIRD\LibIRD.csproj" PrivateAssets="All" />
-	<ProjectReference Include="..\DiscUtils\Library\DiscUtils.Core\DiscUtils.Core.csproj" PrivateAssets="All" />
-	<ProjectReference Include="..\DiscUtils\Library\DiscUtils.Iso9660\DiscUtils.Iso9660.csproj" PrivateAssets="All" />
    <PackageReference Include="CommandLineParser" Version="2.9.1" />
-    <PackageReference Include="SabreTools.RedumpLib" Version="1.3.3" />
+    <PackageReference Include="SabreTools.Hashing" Version="1.1.4" />
+    <PackageReference Include="SabreTools.RedumpLib" Version="1.3.4" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\LibIRD\LibIRD.csproj" />
  </ItemGroup>

 </Project>
@@ -1,17 +1,14 @@
-using CommandLine;
-using DiscUtils;
-using DiscUtils.Iso9660;
-using LibIRD;
-using SabreTools.RedumpLib.Web;
-using System;
+using System;
 using System.Collections.Generic;
 using System.IO;
 using System.IO.Compression;
-using System.IO.Hashing;
 using System.Linq;
-using System.Security.Cryptography;
 using System.Text;
 using System.Xml.Linq;
+using CommandLine;
+using LibIRD;
+using SabreTools.Hashing;
+using SabreTools.RedumpLib.Web;

 namespace IRDKit
 {
@@ -295,7 +292,7 @@ namespace IRDKit
                                {
                                    PrintISO(file, opt.Json, file.Equals(lastISO), opt.OutPath);
                                }
-                                catch (InvalidFileSystemException)
+                                catch (IOException)
                                {
                                    // Not a valid ISO file despite extension, assume file is an IRD
                                    if (!opt.Json)
@@ -476,7 +473,7 @@ namespace IRDKit
                    PrintISO(inPath, json, single, outPath);
                    return;
                }
-                catch (InvalidFileSystemException)
+                catch (IOException)
                {
                    // Not a valid ISO file despite extension, try open as IRD
                }
@@ -526,18 +523,18 @@ namespace IRDKit
            // Open ISO file for reading
            using FileStream fs = new(isoPath, FileMode.Open, FileAccess.Read);
            // Validate ISO file stream
-            if (fs == null || !CDReader.Detect(fs))
+            if (fs == null || !LibIRD.DiscUtils.Iso9660.CDReader.Detect(fs))
            {
                Console.Error.WriteLine($"{isoPath} is not a valid ISO file");
                return;
            }
            // Create new ISO reader
-            using CDReader reader = new(fs, true, true);
+            using LibIRD.DiscUtils.Iso9660.CDReader reader = new(fs);

            // Write PS3_DISC.SFB info
            try
            {
-                using DiscUtils.Streams.SparseStream s = reader.OpenFile("\\PS3_DISC.SFB", FileMode.Open, FileAccess.Read);
+                using LibIRD.DiscUtils.Streams.SparseStream s = reader.OpenFile("\\PS3_DISC.SFB", FileMode.Open, FileAccess.Read);
                PS3_DiscSFB ps3_DiscSFB = new(s);
                if (json)
                {
@@ -574,7 +571,7 @@ namespace IRDKit
            // Write PARAM.SFO info
            try
            {
-                using DiscUtils.Streams.SparseStream s = reader.OpenFile("\\PS3_GAME\\PARAM.SFO", FileMode.Open, FileAccess.Read);
+                using LibIRD.DiscUtils.Streams.SparseStream s = reader.OpenFile("\\PS3_GAME\\PARAM.SFO", FileMode.Open, FileAccess.Read);
                ParamSFO paramSFO = new(s);
                if (json)
                {
@@ -706,7 +703,7 @@ namespace IRDKit
            for (int i = 0; i < regionCount; i++)
            {
                if (!IRD1.RegionHashes[i].SequenceEqual(IRD2.RegionHashes[i]))
-                    printText.AppendLine($"Region {i} Hash: {Convert.ToHexString(IRD1.RegionHashes[i])} vs {Convert.ToHexString(IRD2.RegionHashes[i])}");
+                    printText.AppendLine($"Region {i} Hash: {LibIRD.IRD.ByteArrayToHexString(IRD1.RegionHashes[i])} vs {LibIRD.IRD.ByteArrayToHexString(IRD2.RegionHashes[i])}");
            }

            // Print the difference in number of files, if not 0
@@ -722,7 +719,7 @@ namespace IRDKit
                if (j == -1)
                    missingOffsets2.Add(IRD1.FileKeys[i]);
                if (j != -1 && !IRD1.FileHashes[i].SequenceEqual(IRD2.FileHashes[j]))
-                    printText.AppendLine($"File Hash at Offset {IRD1.FileKeys[i]}: {Convert.ToHexString(IRD1.FileHashes[i])} vs {Convert.ToHexString(IRD2.FileHashes[j])}");
+                    printText.AppendLine($"File Hash at Offset {IRD1.FileKeys[i]}: {LibIRD.IRD.ByteArrayToHexString(IRD1.FileHashes[i])} vs {LibIRD.IRD.ByteArrayToHexString(IRD2.FileHashes[j])}");
            }
            for (int i = 0; i < IRD2.FileKeys.Length; i++)
            {
@@ -750,15 +747,15 @@ namespace IRDKit

            // Print any data 1 key difference
            if (!IRD1.Data1Key.SequenceEqual(IRD2.Data1Key))
-                printText.AppendLine($"Data 1 Key: {Convert.ToHexString(IRD1.Data1Key)} vs {Convert.ToHexString(IRD2.Data1Key)}");
+                printText.AppendLine($"Data 1 Key: {LibIRD.IRD.ByteArrayToHexString(IRD1.Data1Key)} vs {LibIRD.IRD.ByteArrayToHexString(IRD2.Data1Key)}");

            // Print any data 2 key difference
            if (!IRD1.Data2Key.SequenceEqual(IRD2.Data2Key))
-                printText.AppendLine($"Data 2 Key: {Convert.ToHexString(IRD1.Data2Key)} vs {Convert.ToHexString(IRD2.Data2Key)}");
+                printText.AppendLine($"Data 2 Key: {LibIRD.IRD.ByteArrayToHexString(IRD1.Data2Key)} vs {LibIRD.IRD.ByteArrayToHexString(IRD2.Data2Key)}");

            // Print any PIC difference
            if (!IRD1.PIC.SequenceEqual(IRD2.PIC))
-                printText.AppendLine($"PIC: {Convert.ToHexString(IRD1.PIC)} vs {Convert.ToHexString(IRD2.PIC)}");
+                printText.AppendLine($"PIC: {LibIRD.IRD.ByteArrayToHexString(IRD1.PIC)} vs {LibIRD.IRD.ByteArrayToHexString(IRD2.PIC)}");

            // Write formatted string to file if output path provided, otherwise to console
            if (outPath != null)
@@ -810,7 +807,7 @@ namespace IRDKit
                try
                {
                    // Get disc key from hex string
-                    byte[] discKey = Convert.FromHexString(hexKey);
+                    byte[] discKey = LibIRD.IRD.HexStringToByteArray(hexKey);
                    if (discKey == null || discKey.Length != 16)
                        Console.Error.WriteLine($"{hexKey} is not a valid key, detecting key automatically...");
                    else
@@ -846,7 +843,7 @@ namespace IRDKit
                        Console.Error.WriteLine($"{hexKey} is not a valid key, detecting key automatically...");
                    else
                    {
-                        Console.WriteLine($"Creating {irdPath} with Key: {Convert.ToHexString(discKey)}");
+                        Console.WriteLine($"Creating {irdPath} with Key: {LibIRD.IRD.ByteArrayToHexString(discKey)}");
                        IRD ird1 = new ReIRD(isoPath, discKey, layerbreak);
                        ird1.Write(irdPath);
                        if (verbose)
@@ -894,7 +891,7 @@ namespace IRDKit
                        Console.Error.WriteLine($"{hexKey} is not a valid key, detecting key automatically...");
                    else
                    {
-                        Console.WriteLine($"Creating {irdPath} with Key: {Convert.ToHexString(discKey)}");
+                        Console.WriteLine($"Creating {irdPath} with Key: {LibIRD.IRD.ByteArrayToHexString(discKey)}");
                        IRD ird1 = new ReIRD(isoPath, discKey, layerbreak);
                        ird1.Write(irdPath);
                        if (verbose)
@@ -936,22 +933,21 @@ namespace IRDKit
                Console.WriteLine("No key provided... Searching for key on redump.org");

            // Compute CRC32 hash
-            byte[] crc32;
-            uint crc32UInt;
-            using (FileStream fs = File.OpenRead(isoPath))
-            {
-                Crc32 hasher = new();
-                hasher.Append(fs);
-                crc32 = hasher.GetCurrentHash();
-                crc32UInt = BitConverter.ToUInt32(crc32);
-                // Change endianness
+            byte[] crc32 = HashTool.GetFileHashArray(isoPath, HashType.CRC32);
+            string crc32String = LibIRD.IRD.ByteArrayToHexString(crc32).ToLowerInvariant();
+
+            // Convert to UInt for use as UID in IRD
            Array.Reverse(crc32);
-            }
-            string crc32_hash = Convert.ToHexString(crc32).ToLower();
+            uint crc32UInt = BitConverter.ToUInt32(crc32, 0);

            // Search for ISO on redump.org
+#if !NETFRAMEWORK
            RedumpHttpClient redump = new();
-            List<int> ids = redump.CheckSingleSitePage("http://redump.org/discs/system/ps3/quicksearch/" + crc32_hash).ConfigureAwait(false).GetAwaiter().GetResult();
+            List<int> ids = redump.CheckSingleSitePage("http://redump.org/discs/system/ps3/quicksearch/" + crc32String).ConfigureAwait(false).GetAwaiter().GetResult();
+#else
+            RedumpWebClient redump = new();
+            List<int> ids = redump.CheckSingleSitePage("http://redump.org/discs/system/ps3/quicksearch/" + crc32String);
+#endif
            int id;
            if (ids.Count == 0)
            {
@@ -961,16 +957,14 @@ namespace IRDKit
            else if (ids.Count > 1)
            {
                // More than one result for the CRC32 hash, compute SHA1 hash instead
-                byte[] sha1;
-                using (FileStream fs = File.OpenRead(isoPath))
-                {
-                    SHA1 hasher = SHA1.Create();
-                    sha1 = hasher.ComputeHash(fs);
-                }
-                string sha1_hash = Convert.ToHexString(sha1).ToLower();
+                string sha1String = HashTool.GetFileHash(isoPath, HashType.SHA1);

                // Search redump.org for SHA1 hash
-                List<int> ids2 = redump.CheckSingleSitePage("http://redump.org/discs/system/ps3/quicksearch/" + sha1_hash).ConfigureAwait(false).GetAwaiter().GetResult();
+#if !NETFRAMEWORK
+                List<int> ids2 = redump.CheckSingleSitePage("http://redump.org/discs/system/ps3/quicksearch/" + sha1String).ConfigureAwait(false).GetAwaiter().GetResult();
+#else
+                List<int> ids2 = redump.CheckSingleSitePage("http://redump.org/discs/system/ps3/quicksearch/" + sha1String);
+#endif
                if (ids2.Count == 0)
                {
                    Console.Error.WriteLine("ISO not found in redump and no valid key provided, cannot create IRD");
@@ -990,7 +984,11 @@ namespace IRDKit
            }

            // Download key file from redump.org
+#if !NETFRAMEWORK
            byte[] key = redump.GetByteArrayAsync($"http://redump.org/disc/{id}/key").ConfigureAwait(false).GetAwaiter().GetResult();
+#else
+            byte[] key = redump.DownloadData($"http://redump.org/disc/{id}/key");
+#endif
            if (key.Length != 16)
            {
                Console.Error.WriteLine("Invalid key obtained from redump and no valid key provided, cannot create IRD");
@@ -998,7 +996,7 @@ namespace IRDKit
            }

            // Create IRD with key from redump
-            Console.WriteLine($"Creating {irdPath} with Key from redump.org: {Convert.ToHexString(key)}");
+            Console.WriteLine($"Creating {irdPath} with Key from redump.org: {LibIRD.IRD.ByteArrayToHexString(key)}");
            try
            {
                IRD ird = new ReIRD(isoPath, key, layerbreak, crc32UInt);
@@ -1043,11 +1041,9 @@ namespace IRDKit
            if (ird.ExtraConfig != 0x0001)
                throw new ArgumentException($"{irdPath} is not a redump-style IRD");

-            string filename = GetDatFilename(ird, datfile);
-            if (filename == null)
-                throw new ArgumentException($"Cannot determine DAT filename for {irdPath}");
+            string filename = GetDatFilename(ird, datfile) ?? throw new ArgumentException($"Cannot determine DAT filename for {irdPath}");
            if (serial)
-                filename += $" [{ird.TitleID[..4]}-{ird.TitleID[4..9]}]";
+                filename += $" [{ird.TitleID.Substring(0, 4)}-{ird.TitleID.Substring(5, 5)}]";
            if (crc)
                filename += $" [{ird.UID:X8}]";

@@ -11,16 +11,12 @@ Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Solution Items", "Solution
 	ProjectSection(SolutionItems) = preProject
 		.gitattributes = .gitattributes
 		.gitignore = .gitignore
+		.gitmodules = .gitmodules
 		LICENSE.txt = LICENSE.txt
+		publish-irdkit.ps1 = publish-irdkit.ps1
 		README.md = README.md
 	EndProjectSection
 EndProject
-Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "DiscUtils.Core", "DiscUtils\Library\DiscUtils.Core\DiscUtils.Core.csproj", "{9E71F5CD-887D-4A61-8460-9F7E8F110B46}"
-EndProject
-Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "DiscUtils.Iso9660", "DiscUtils\Library\DiscUtils.Iso9660\DiscUtils.Iso9660.csproj", "{9E1EF05F-388B-42C6-A4E7-98BE20C7C8EC}"
-EndProject
-Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "DiscUtils.Streams", "DiscUtils\Library\DiscUtils.Streams\DiscUtils.Streams.csproj", "{E8D0B8B0-F165-4FA1-AC7B-194F5F48A5F9}"
-EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -35,18 +31,6 @@ Global
 		{9060E3AF-E4FB-436F-93A1-5C47389CB88E}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{9060E3AF-E4FB-436F-93A1-5C47389CB88E}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{9060E3AF-E4FB-436F-93A1-5C47389CB88E}.Release|Any CPU.Build.0 = Release|Any CPU
-		{9E71F5CD-887D-4A61-8460-9F7E8F110B46}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{9E71F5CD-887D-4A61-8460-9F7E8F110B46}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{9E71F5CD-887D-4A61-8460-9F7E8F110B46}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{9E71F5CD-887D-4A61-8460-9F7E8F110B46}.Release|Any CPU.Build.0 = Release|Any CPU
-		{9E1EF05F-388B-42C6-A4E7-98BE20C7C8EC}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{9E1EF05F-388B-42C6-A4E7-98BE20C7C8EC}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{9E1EF05F-388B-42C6-A4E7-98BE20C7C8EC}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{9E1EF05F-388B-42C6-A4E7-98BE20C7C8EC}.Release|Any CPU.Build.0 = Release|Any CPU
-		{E8D0B8B0-F165-4FA1-AC7B-194F5F48A5F9}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
-		{E8D0B8B0-F165-4FA1-AC7B-194F5F48A5F9}.Debug|Any CPU.Build.0 = Debug|Any CPU
-		{E8D0B8B0-F165-4FA1-AC7B-194F5F48A5F9}.Release|Any CPU.ActiveCfg = Release|Any CPU
-		{E8D0B8B0-F165-4FA1-AC7B-194F5F48A5F9}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
@@ -1,13 +1,13 @@
-using DiscUtils;
-using DiscUtils.Iso9660;
-using DiscUtils.Streams;
-using System;
+using System;
 using System.Collections.Generic;
 using System.IO;
 using System.IO.Compression;
-using System.IO.Hashing;
 using System.Security.Cryptography;
 using System.Text;
+using LibIRD.DiscUtils;
+using LibIRD.DiscUtils.Iso9660;
+using LibIRD.DiscUtils.Streams;
+using SabreTools.Hashing;

 namespace LibIRD
 {
@@ -413,7 +413,11 @@ namespace LibIRD
                throw new ArgumentException("Disc Key must be a byte array of length 16", nameof(key));

            // Setup AES decryption
+#if NET35_OR_GREATER || NETCOREAPP
            using Aes aes = Aes.Create() ?? throw new InvalidOperationException("AES not available. Change your system settings");
+#else
+            using Rijndael aes = Rijndael.Create() ?? throw new InvalidOperationException("AES not available. Change your system settings"); ;
+#endif

            // Set AES settings
            aes.Key = D1AesKey;
@@ -446,7 +450,11 @@ namespace LibIRD
                throw new ArgumentException("Disc Key must be a byte array of length 16", nameof(d1));

            // Setup AES decryption
+#if NET35_OR_GREATER || NETCOREAPP
            using Aes aes = Aes.Create() ?? throw new InvalidOperationException("AES not available. Change your system settings");
+#else
+            using Rijndael aes = Rijndael.Create() ?? throw new InvalidOperationException("AES not available. Change your system settings"); ;
+#endif

            // Set AES settings
            aes.Key = D1AesKey;
@@ -478,7 +486,11 @@ namespace LibIRD
            if (d2.Length != 16) throw new ArgumentException("Disc ID must be a byte array of length 16", nameof(d2));

            // Setup AES encryption
+#if NET35_OR_GREATER || NETCOREAPP
            using Aes aes = Aes.Create() ?? throw new InvalidOperationException("AES not available. Change your system settings");
+#else
+            using Rijndael aes = Rijndael.Create() ?? throw new InvalidOperationException("AES not available. Change your system settings"); ;
+#endif

            // Set AES settings
            aes.Key = D2AesKey;
@@ -511,7 +523,11 @@ namespace LibIRD
                throw new ArgumentException("Disc ID must be a byte array of length 16", nameof(d2));

            // Setup AES encryption
+#if NET35_OR_GREATER || NETCOREAPP
            using Aes aes = Aes.Create() ?? throw new InvalidOperationException("AES not available. Change your system settings");
+#else
+            using Rijndael aes = Rijndael.Create() ?? throw new InvalidOperationException("AES not available. Change your system settings"); ;
+#endif

            // Set AES settings
            aes.Key = D2AesKey;
@@ -540,11 +556,11 @@ namespace LibIRD
        private protected void ParseGetKeyLog(string getKeyLog)
        {
            // Validate .getkey.log file path
-            if (!File.Exists(getKeyLog))
+            if (!System.IO.File.Exists(getKeyLog))
                throw new FileNotFoundException(nameof(getKeyLog));

            // Read from .getkey.log file
-            using StreamReader sr = File.OpenText(getKeyLog);
+            using StreamReader sr = System.IO.File.OpenText(getKeyLog);

            // Determine whether GetKey was successful
            string line;
@@ -558,12 +574,12 @@ namespace LibIRD
            if (line == null)
                throw new InvalidDataException("Could not find Disc Key in .getkey.log");
            // Get Disc Key from log
-            string discKeyStr = line["disc_key = ".Length..];
+            string discKeyStr = line.Substring("disc_key = ".Length);
            // Validate Disc Key from log
            if (discKeyStr.Length != 32)
                throw new InvalidDataException("Unexpected Disc Key in .getkey.log");
            // Convert Disc Key to byte array
-            discKey = Convert.FromHexString(discKeyStr);
+            discKey = HexStringToByteArray(discKeyStr);

            // Read Disc ID
            byte[] discID;
@@ -571,14 +587,14 @@ namespace LibIRD
            if (line == null)
                throw new InvalidDataException("Could not find Disc ID in .getkey.log");
            // Get Disc ID from log
-            string discIDStr = line["disc_id = ".Length..];
+            string discIDStr = line.Substring("disc_id = ".Length);
            // Validate Disc ID from log
            if (discIDStr.Length != 32)
                throw new InvalidDataException("Unexpected Disc ID in .getkey.log");
            // Replace X's in Disc ID with 00000001
-            discIDStr = discIDStr[..24] + "00000001";
+            discIDStr = discIDStr.Substring(0, 24) + "00000001";
            // Convert Disc ID to byte array
-            discID = Convert.FromHexString(discIDStr);
+            discID = HexStringToByteArray(discIDStr);

            // Look for PIC in log
            byte[] discPIC;
@@ -593,7 +609,7 @@ namespace LibIRD
            if (discPICStr.Length != 256)
                throw new InvalidDataException("Unexpected PIC in .getkey.log");
            // Convert PIC to byte array
-            discPIC = Convert.FromHexString(discPICStr[..230]);
+            discPIC = HexStringToByteArray(discPICStr.Substring(0, 230));

            // Double check for warnings in .getkey.log
            while ((line = sr.ReadLine()) != null && line.Trim().StartsWith("WARNING") == false && line.Trim().StartsWith("SUCCESS") == false)
@@ -618,17 +634,17 @@ namespace LibIRD
        /// <param name="redump">True if redump-style IRD</param>
        /// <exception cref="ArgumentNullException"></exception>
        /// <exception cref="FileNotFoundException"></exception>
-        /// <exception cref="InvalidFileSystemException"></exception>
+        /// <exception cref="IOException"></exception>
        private protected void GenerateIRD(string isoPath, bool redump = false)
        {
            // Parse ISO file as a file stream
            using FileStream fs = new FileStream(isoPath, FileMode.Open, FileAccess.Read, FileShare.Read, 4096, FileOptions.SequentialScan) ?? throw new FileNotFoundException(isoPath);
            // Validate ISO file stream
            if (!CDReader.Detect(fs))
-                throw new InvalidFileSystemException("Not a valid ISO file");
+                throw new IOException("Not a valid ISO file");

            // New ISO Reader from DiscUtils
-            CDReader reader = new(fs, true, true);
+            CDReader reader = new(fs);

            // If generating redump-style IRD
            if (redump)
@@ -645,7 +661,7 @@ namespace LibIRD
                bool titleIDFound = ps3_DiscSFB.Field.TryGetValue("TITLE_ID", out string titleID);
                // If a valid TITLE_ID field is present, remove the hyphen to fit into standard IRD file
                if (titleIDFound && titleID.Length == 10 && titleID[4] == '-')
-                    TitleID = string.Concat(titleID.AsSpan(0, 4), titleID.AsSpan(5, 5));
+                    TitleID = titleID.Substring(0, 4) + titleID.Substring(5, 5);

                // If the version field is present, this is a multi-game disc
                // Redump-style IRDs use the VERSION field from PS3_DISC.SFB instead of VERSION from PARAM.SFO
@@ -665,7 +681,7 @@ namespace LibIRD
                {
                    bool titleIDFound = paramSFO.Field.TryGetValue("TITLE_ID", out string titleID);
                    if (titleIDFound)
-                        TitleID = titleID.Length == 9 ? titleID : titleID.PadRight(9, '\0')[..9];
+                        TitleID = titleID.Length == 9 ? titleID : titleID.PadRight(9, '\0').Substring(0, 9);
                    else
                        TitleID = "\0\0\0\0\0\0\0\0\0";
                }
@@ -679,7 +695,7 @@ namespace LibIRD
                {
                    bool discVersionFound = paramSFO.Field.TryGetValue("VERSION", out string discVersion);
                    if (discVersionFound)
-                        DiscVersion = discVersion.Length == 5 ? discVersion : discVersion.PadRight(5, '\0')[..5];
+                        DiscVersion = discVersion.Length == 5 ? discVersion : discVersion.PadRight(5, '\0').Substring(0, 5);
                    else
                        DiscVersion = "\0\0\0\0\0";
                }
@@ -687,7 +703,7 @@ namespace LibIRD
                // Try use App Version from PARAM.SFO 
                bool appVersionFound = paramSFO.Field.TryGetValue("APP_VER", out string appVersion);
                if (appVersionFound)
-                    AppVersion = appVersion.Length == 5 ? appVersion : appVersion.PadRight(5, '\0')[..5];
+                    AppVersion = appVersion.Length == 5 ? appVersion : appVersion.PadRight(5, '\0').Substring(0, 5);
                else
                    AppVersion = "\0\0\0\0\0";
            }
@@ -747,18 +763,19 @@ namespace LibIRD
        /// <remarks>PS3UPDAT.PUP update file version number</remarks>
        /// <param name="fs">ISO filestream</param>
        /// <param name="reader">CDReader</param>
-        /// <exception cref="InvalidFileSystemException"></exception>
+        /// <exception cref="IOException"></exception>
        private void GetSystemVersion(FileStream fs, CDReader reader)
        {
            // Determine PUP file offset via cluster
            Range<long, long>[] updateClusters = reader.PathToClusters("\\PS3_UPDATE\\PS3UPDAT.PUP");
            if (updateClusters == null && updateClusters.Length == 0 && updateClusters[0] == null)
-                throw new InvalidFileSystemException("Invalid file extents for PS3UPDAT.PUP");
+                throw new IOException("Invalid file extents for PS3UPDAT.PUP");

            // PS3UPDAT.PUP file begins at first byte of dedicated cluster
            UpdateOffset = SectorSize * updateClusters[0].Offset;
            // Update file ends at the last byte of the last cluster
-            UpdateEnd = SectorSize * updateClusters[^1].Offset + updateClusters[^1].Count;
+            int lastExtent = updateClusters.Length - 1;
+            UpdateEnd = SectorSize * updateClusters[lastExtent].Offset + updateClusters[lastExtent].Count;

            // Check PUP file Magic
            fs.Seek(UpdateOffset, SeekOrigin.Begin);
@@ -790,22 +807,24 @@ namespace LibIRD
        /// </summary>
        /// <param name="fs">ISO filestream</param>
        /// <param name="reader">CDReader</param>
-        /// <exception cref="InvalidFileSystemException"></exception>
+        /// <exception cref="IOException"></exception>
        private void GetHeader(FileStream fs, CDReader reader)
        {
            // Determine the extent of the header via cluster (Sector 0 to first data sector)
            Range<long, long>[] sfbClusters = reader.PathToClusters("\\PS3_DISC.SFB");
            if (sfbClusters == null && sfbClusters.Length == 0 && sfbClusters[0] == null)
-                throw new InvalidFileSystemException("Invalid file extents for PS3_DISC.SFB");
+                throw new IOException("Invalid file extents for PS3_DISC.SFB");
            // End of header is at beginning of first byte of dedicated cluster
            FirstDataSector = sfbClusters[0].Offset;

            // Begin a GZip stream to write header to
            using MemoryStream headerStream = new();
 #if NET6_0_OR_GREATER
-            using (GZipStream gzs = new(headerStream, CompressionLevel.SmallestSize))
+            using (GZipStream gzStream = new(headerStream, CompressionLevel.SmallestSize))
+#elif NETCOREAPP || NET45_OR_GREATER
+            using (GZipStream gzStream = new(headerStream, CompressionLevel.Optimal))
 #else
-            using (GZipStream gzs = new(headerStream, CompressionLevel.Optimal))
+            using (GZipStream gzStream = new(headerStream, CompressionMode.Compress))
 #endif
            {
                // Start reading data from the beginning of the ISO file
@@ -817,7 +836,7 @@ namespace LibIRD
                for (int i = 0; i < FirstDataSector; i++)
                {
                    numBytes = fs.Read(buf, 0, buf.Length);
-                    gzs.Write(buf, 0, numBytes);
+                    gzStream.Write(buf, 0, numBytes);
                }
            }

@@ -835,9 +854,11 @@ namespace LibIRD
            // Begin a GZip stream to write footer to
            using MemoryStream footerStream = new();
 #if NET6_0_OR_GREATER
-            using (GZipStream gzs = new(footerStream, CompressionLevel.SmallestSize))
+            using (GZipStream gzStream = new(footerStream, CompressionLevel.SmallestSize))
+#elif NETCOREAPP || NET45_OR_GREATER
+            using (GZipStream gzStream = new(footerStream, CompressionLevel.Optimal))
 #else
-            using (GZipStream gzs = new(footerStream, CompressionLevel.Optimal))
+            using (GZipStream gzStream = new(footerStream, CompressionMode.Compress))
 #endif
            {
                // Start reading data from after last file (PS3UPDAT.PUP)
@@ -849,7 +870,7 @@ namespace LibIRD
                while (numBytes != 0)
                {
                    numBytes = fs.Read(buf, 0, buf.Length);
-                    gzs.Write(buf, 0, numBytes);
+                    gzStream.Write(buf, 0, numBytes);
                }
            }

@@ -862,7 +883,7 @@ namespace LibIRD
        /// Retreives and stores the Region extents
        /// </summary>
        /// <param name="fs">ISO filestream</param>
-        /// <exception cref="InvalidFileSystemException"></exception>
+        /// <exception cref="IOException"></exception>
        private void GetRegions(FileStream fs)
        {
            // Determine the number of unencryted regions
@@ -873,7 +894,7 @@ namespace LibIRD
            // Total number of regions is 2x number of unencrypted regions, minus 1
            RegionCount = (byte)(2 * ((uint)decRegionCount[3]) - 1);
            if (RegionCount <= 0)
-                throw new InvalidFileSystemException("No regions detected in ISO");
+                throw new IOException("No regions detected in ISO");
            RegionStart = new long[RegionCount];
            RegionEnd = new long[RegionCount];

@@ -886,22 +907,23 @@ namespace LibIRD
            {
                // End sector of previous region is start of this region
                if (i % 2 == 1)
-                    RegionStart[i] = BitConverter.ToInt32(regionSector) + 1;
+                    RegionStart[i] = BitConverter.ToInt32(regionSector, 0) + 1;
                else
-                    RegionStart[i] = BitConverter.ToInt32(regionSector);
+                    RegionStart[i] = BitConverter.ToInt32(regionSector, 0);
                // Determine end sector offset of this region
                fs.Read(regionSector, 0, 4);
                Array.Reverse(regionSector, 0, 4);
                if (i % 2 == 1)
-                    RegionEnd[i] = BitConverter.ToInt32(regionSector) - 1;
+                    RegionEnd[i] = BitConverter.ToInt32(regionSector, 0) - 1;
                else
-                    RegionEnd[i] = BitConverter.ToInt32(regionSector);
+                    RegionEnd[i] = BitConverter.ToInt32(regionSector, 0);
            }

            // Remove header from first region
            RegionStart[0] = FirstDataSector;
            // Remove footer from last region
-            RegionEnd[^1] = (UpdateEnd / SectorSize) - 1;
+            int lastRegion = RegionEnd.Length - 1;
+            RegionEnd[lastRegion] = (UpdateEnd / SectorSize) - 1;
        }

        /// <summary>
@@ -922,7 +944,7 @@ namespace LibIRD

                // If invalid clusters were returned, we can't hash this file
                if (fileExtent == null && fileExtent.Length == 0)
-                    throw new InvalidFileSystemException($"Unexpected file extents for {filePath}");
+                    throw new IOException($"Unexpected file extents for {filePath}");

                // Determine smallest file offset as first sector
                long smallestOffset = fileExtent[0].Offset;
@@ -930,7 +952,7 @@ namespace LibIRD
                for (int i = 1; i < fileExtent.Length; i++)
                {
                    if (fileExtent[i] == null)
-                        throw new InvalidFileSystemException($"Unexpected file extents for {filePath}");
+                        throw new IOException($"Unexpected file extents for {filePath}");

                    if (fileExtent[i].Offset * SectorSize != fileExtent[i - 1].Offset * SectorSize + fileExtent[i - 1].Count)
                        nonContiguous = true;
@@ -968,7 +990,8 @@ namespace LibIRD
        /// <exception cref="InvalidOperationException"></exception>
        private protected void DecryptSectors(ref byte[] buffer, int sectorNumber, int offset = 0, int? count = null)
        {
-            ArgumentNullException.ThrowIfNull(buffer);
+            if (buffer == null)
+                throw new ArgumentNullException(nameof(buffer));

            if (buffer.Length == 0 || buffer.Length % SectorSize != 0)
                throw new ArgumentException("Encrypted buffer must be multiple of SectorSize");
@@ -982,7 +1005,12 @@ namespace LibIRD
                throw new ArgumentException("Number of sectors must be within buffer");

            // Setup AES decryption
+#if NET35_OR_GREATER || NETCOREAPP
            using Aes aes = Aes.Create() ?? throw new InvalidOperationException("AES not available. Change your system settings");
+#else
+            using Rijndael aes = Rijndael.Create() ?? throw new InvalidOperationException("AES not available. Change your system settings"); ;
+#endif
+
            // Set AES settings
            aes.Key = DiscKey;
            aes.Padding = PaddingMode.None;
@@ -1028,6 +1056,10 @@ namespace LibIRD
                CountFiles(dirInfo);
        }

+        #endregion
+
+        #region Hashing
+
        /// <summary>
        /// Calculate hashes for all region and file extents
        /// </summary>
@@ -1037,24 +1069,24 @@ namespace LibIRD
        {
            // Initialise CRC32 ISO hasher, only used if making redump-style IRD
            byte[] crc32;
-            Crc32 isoHasher = new();
+            HashWrapper isoHasher = new(HashType.CRC32);

            // Initialise MD5 region hashes
            List<int> regions = [];
-            MD5[] regionMD5 = new MD5[RegionCount];
+            HashWrapper[] regionMD5 = new HashWrapper[RegionCount];
            for (int i = 0; i < RegionCount; i++)
            {
                regions.Add(i);
-                regionMD5[i] = MD5.Create();
+                regionMD5[i] = new(HashType.MD5);
            }

            // Initialise MD5 file hashes
            List<int> files = [];
-            MD5[] fileMD5 = new MD5[FileCount];
+            HashWrapper[] fileMD5 = new HashWrapper[FileCount];
            for (int i = 0; i < FileCount; i++)
            {
                files.Add(i);
-                fileMD5[i] = MD5.Create();
+                fileMD5[i] = new(HashType.MD5);
            }

            // Start hashing from beginning of ISO
@@ -1076,7 +1108,8 @@ namespace LibIRD
                    // If making redump-style IRD, save CRC32 hash to UID field
                    if (redump)
                    {
-                        crc32 = isoHasher.GetCurrentHash();
+                        crc32 = isoHasher.CurrentHashBytes;
+                        Array.Reverse(crc32);
                        UID = BitConverter.ToUInt32(crc32, 0);
                    }
                    return;
@@ -1103,12 +1136,12 @@ namespace LibIRD
                    if (bufSectors == 0)
                        Console.Error.WriteLine("ERROR: Trailing partial sector in ISO filestream");
                    if (numBytes > buf.Length)
-                        throw new InvalidFileSystemException("ERROR: Read more bytes than buffer size???");
+                        throw new IOException("ERROR: Read more bytes than buffer size???");
                }

                // Hash ISO
                if (redump)
-                    isoHasher.Append(new ReadOnlySpan<byte>(buf, 0, numBytes));
+                    isoHasher.Process(buf, 0, numBytes);

                // Hash regions
                List<int> regionsEnded = [];
@@ -1130,23 +1163,24 @@ namespace LibIRD
                        // Determine end byte
                        int endByte = (int)(SectorSize * (RegionEnd[i] - currentSector + 1));
                        // Close region hash
-                        regionMD5[i].TransformFinalBlock(buf, startByte, endByte - startByte);
-                        RegionHashes[i] = regionMD5[i].Hash;
-                        regionMD5[i].Clear();
+                        regionMD5[i].Process(buf, startByte, endByte - startByte);
+                        regionMD5[i].Terminate();
+                        RegionHashes[i] = regionMD5[i].CurrentHashBytes;
+                        regionMD5[i].Dispose();
                        regionsEnded.Add(i);
                    }
                    // Check if region has already begun
                    else if (RegionStart[i] <= currentSector)
                    {
                        // Hash buffer
-                        regionMD5[i].TransformBlock(buf, 0, (int)SectorSize * bufSectors, null, 0);
+                        regionMD5[i].Process(buf, 0, (int)SectorSize * bufSectors);
                    }
                    // Region Start is in this buffer, ending is in the future
                    else
                    {
                        // Hash partial buffer
                        int regionStart = (int)(SectorSize * (RegionStart[i] - currentSector));
-                        regionMD5[i].TransformBlock(buf, regionStart, (int)SectorSize * bufSectors - regionStart, null, 0);
+                        regionMD5[i].Process(buf, regionStart, (int)SectorSize * bufSectors - regionStart);
                    }
                }
                if (regionsEnded.Count > 0)
@@ -1171,7 +1205,7 @@ namespace LibIRD

                        // Don't decrypt last sectors if the encrypted region ends within this buffer
                        if (RegionEnd[i] < currentSector + bufSectors)
-                            encCount -= (int)(currentSector + bufSectors - RegionEnd[i] + 1);
+                            encCount -= (int)(currentSector + bufSectors - RegionEnd[i] - 1);

                        // Decrypt encrypted sectors
                        DecryptSectors(ref buf, (int)currentSector + encOffset, encOffset, encCount);
@@ -1200,18 +1234,19 @@ namespace LibIRD
                        // Don't hash more than the buffer size
                        endByte = endByte < bufSectors * (int)SectorSize ? endByte : bufSectors * (int)SectorSize;
                        // Hash portion of buffer that file exists in
-                        fileMD5[i].TransformBlock(buf, startByte, endByte - startByte, null, 0);
+                        fileMD5[i].Process(buf, startByte, endByte - startByte);
                    }

                    // Check if current file has ended in this buffer (assumes last extent contains last byte)
-                    long lastByte = SectorSize * FileExtents[i][^1].Offset + FileExtents[i][^1].Count;
+                    int lastExtent = FileExtents[i].Length - 1;
+                    long lastByte = SectorSize * FileExtents[i][lastExtent].Offset + FileExtents[i][lastExtent].Count;
                    if (lastByte < SectorSize * (currentSector + bufSectors)
                        && lastByte > SectorSize * currentSector)
                    {
                        // Close file hash
-                        fileMD5[i].TransformFinalBlock(buf, 0, 0);
-                        FileHashes[i] = fileMD5[i].Hash;
-                        fileMD5[i].Clear();
+                        fileMD5[i].Terminate();
+                        FileHashes[i] = fileMD5[i].CurrentHashBytes;
+                        fileMD5[i].Dispose();
                        filesEnded.Add(i);
                    }
                }
@@ -1240,9 +1275,9 @@ namespace LibIRD
            // Create new stream to uncompressed IRD contents
            using MemoryStream stream = new();

-            // Write IRD data to stream in order
-            using (BinaryWriter bw = new(stream, Encoding.UTF8, true))
-            {
+            // Write IRD data to stream as UTF8
+            using BinaryWriter bw = new(stream, Encoding.UTF8);
+
            // IRD File Signature
            bw.Write(Magic);

@@ -1328,28 +1363,35 @@ namespace LibIRD
            // IRD Unique Identifier, for versions after 7
            if (_version > 7)
                bw.Write(UID);
-            }

            // Calculate the little-endian 32-bit "IEEE 802.3" CRC value of the IRD contents so far
            stream.Position = 0;
-            Crc32 crc32 = new();
-            crc32.Append(stream);
-            byte[] crc = crc32.GetCurrentHash();
+            byte[] crc32 = HashTool.GetStreamHashArray(stream, HashType.CRC32, true);
+            Array.Reverse(crc32);

            // Write final CRC value to the stream
-            stream.Write(crc, 0, 4);
+            stream.Write(crc32, 0, 4);

            // Create the IRD file stream
            using FileStream fs = new(irdPath, FileMode.Create, FileAccess.Write);
            // Create a GZipped IRD file stream
 #if NET6_0_OR_GREATER
            using GZipStream gzStream = new(fs, CompressionLevel.SmallestSize);
-#else
+#elif NETCOREAPP || NET45_OR_GREATER
            using GZipStream gzStream = new(fs, CompressionLevel.Optimal);
+#else
+            using GZipStream gzStream = new(fs, CompressionMode.Compress);
 #endif
            // Write entire gzipped IRD stream to file
            stream.Position = 0;
+#if NET40_OR_GREATER || NETCOREAPP
            stream.CopyTo(gzStream);
+#else
+            byte[] buffer = new byte[1024];
+            int numBytes;
+            while ((numBytes = stream.Read(buffer, 0, buffer.Length)) > 0)
+                gzStream.Write(buffer, 0, numBytes);
+#endif
        }

        /// <summary>
@@ -1363,7 +1405,7 @@ namespace LibIRD
            // Validate irdPath
            if (irdPath == null || irdPath.Length <= 0)
                throw new ArgumentNullException(nameof(irdPath));
-            if (!File.Exists(irdPath))
+            if (!System.IO.File.Exists(irdPath))
                throw new FileNotFoundException(nameof(irdPath));

            // Open IRD for reading
@@ -1373,7 +1415,7 @@ namespace LibIRD

            // Check for IRD file signature
            byte[] magic = br.ReadBytes(4);
-            if (!((ReadOnlySpan<byte>)Magic).SequenceEqual(magic))
+            if (magic == null || magic.Length != 4 || magic[0] != Magic[0] || magic[1] != Magic[1] || magic[2] != Magic[2] || magic[3] != Magic[3])
                throw new InvalidDataException("IRD file not recognised");

            // Read file version
@@ -1492,9 +1534,9 @@ namespace LibIRD
            if (Attachments != 0x0000)
                printText.AppendLine($"Attachments:  {Attachments:X4}");
            printText.AppendLine($"Unique ID:    {UID:X8}");
-            printText.AppendLine($"Data 1 Key:   {Convert.ToHexString(Data1Key)}");
-            printText.AppendLine($"Data 2 Key:   {Convert.ToHexString(Data2Key)}");
-            printText.AppendLine($"PIC:          {Convert.ToHexString(PIC)}");
+            printText.AppendLine($"Data 1 Key:   {ByteArrayToHexString(Data1Key)}");
+            printText.AppendLine($"Data 2 Key:   {ByteArrayToHexString(Data2Key)}");
+            printText.AppendLine($"PIC:          {ByteArrayToHexString(PIC)}");
            printText.AppendLine();

            if (printPath == null)
@@ -1507,7 +1549,7 @@ namespace LibIRD
            }
            else
            {
-                File.AppendAllText(printPath, printText.ToString());
+                System.IO.File.AppendAllText(printPath, printText.ToString());
            }
        }

@@ -1537,9 +1579,9 @@ namespace LibIRD
            if (Attachments != 0x0000)
                json.AppendLine($"  \"Attachments\": \"{Attachments:X4}\",");
            json.AppendLine($"  \"Unique ID\": \"{UID:X8}\",");
-            json.AppendLine($"  \"Data 1 Key\": \"{Convert.ToHexString(Data1Key)}\",");
-            json.AppendLine($"  \"Data 2 Key\": \"{Convert.ToHexString(Data2Key)}\",");
-            json.AppendLine($"  \"PIC\": \"{Convert.ToHexString(PIC)}\"");
+            json.AppendLine($"  \"Data 1 Key\": \"{ByteArrayToHexString(Data1Key)}\",");
+            json.AppendLine($"  \"Data 2 Key\": \"{ByteArrayToHexString(Data2Key)}\",");
+            json.AppendLine($"  \"PIC\": \"{ByteArrayToHexString(PIC)}\"");
            if (single)
                json.AppendLine("}");
            else
@@ -1557,10 +1599,70 @@ namespace LibIRD
            else
            {
                // Write to path
-                File.AppendAllText(jsonPath, json.ToString());
+                System.IO.File.AppendAllText(jsonPath, json.ToString());
            }
        }

+#endregion
+
+        #region Helper Functions
+
+        /// <summary>
+        /// Converts a hex string into a byte array
+        /// </summary>
+        /// <param name="hex">Hex string</param>
+        /// <returns>Converted byte array, or null if invalid hex string</returns>
+        public static byte[] HexStringToByteArray(string hexString)
+        {
+            // Valid hex string must be an even number of characters
+            if (string.IsNullOrEmpty(hexString) || hexString!.Length % 2 == 1)
+                return null;
+
+            // Convert ASCII to byte via lookup table
+            int[] hexLookup = [0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x00, 0x00,
+                0x00, 0x00, 0x00, 0x00, 0x00, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F];
+            byte[] byteArray = new byte[hexString.Length / 2];
+            for (int i = 0; i < hexString.Length; i += 2)
+            {
+                // Convert next two chars to ASCII value relative to '0'
+                int a = Char.ToUpper(hexString[i]) - '0';
+                int b = Char.ToUpper(hexString[i + 1]) - '0';
+
+                // Ensure hex string only has '0' through '9' and 'A' through 'F' (case insensitive)
+                if ((a < 0 || b < 0 || a > 22 || b > 22) || (a > 10 && a < 17) || (b > 10 && b < 17))
+                    return null;
+                byteArray[i / 2] = (byte)(hexLookup[a] << 4 | hexLookup[b]);
+            }
+
+            return byteArray;
+        }
+
+        /// <summary>
+        /// Converts a byte array into a hex string
+        /// </summary>
+        /// <param name="byteArray">Byte array</param>
+        /// <returns>Hex string representation of byte array, null if invalid</returns>
+        public static string ByteArrayToHexString(byte[] byteArray)
+        {
+            // Validate byte array
+            if (byteArray == null || byteArray.Length == 0)
+                return null;
+
+            // Store map of values to hex string
+            string hex = "0123456789ABCDEF";
+
+            // Add two characters per byte value
+            StringBuilder hexString = new(2 * byteArray.Length);
+            foreach (byte b in byteArray)
+            {
+                hexString.Append(hex[(int)(b >> 4)]);
+                hexString.Append(hex[(int)(b & 0x0F)]);
+            }
+
+            // Return hex string
+            return hexString.ToString();
+        }
+
        #endregion
    }
 }
@@ -2,11 +2,12 @@

  <PropertyGroup>
    <!-- Assembly Properties -->
-	<TargetFrameworks>net6.0;net7.0;net8.0</TargetFrameworks>
    <RuntimeIdentifiers>win-x86;win-x64;win-arm64;linux-x64;linux-arm64;osx-x64;osx-arm64</RuntimeIdentifiers>
+    <CheckEolTargetFramework>false</CheckEolTargetFramework>
    <LangVersion>latest</LangVersion>
+    <SuppressTfmSupportBuildWarnings>true</SuppressTfmSupportBuildWarnings>
    <TreatWarningsAsErrors>true</TreatWarningsAsErrors>
-    <Version>0.6.0</Version>
+    <Version>0.8.0</Version>
    <PackageOutputPath>../nupkg</PackageOutputPath>
    
    <!-- Package Properties -->
@@ -21,24 +22,21 @@
    <GeneratePackageOnBuild>True</GeneratePackageOnBuild>
  </PropertyGroup>
  
+  <PropertyGroup Condition="$(RuntimeIdentifier.StartsWith(`osx-arm`))">
+    <TargetFrameworks>net6.0;net7.0;net8.0</TargetFrameworks>
+  </PropertyGroup>
+  
+  <PropertyGroup Condition="!$(RuntimeIdentifier.StartsWith(`osx-arm`))">
+    <TargetFrameworks>net20;net35;net40;net452;net462;net472;net48;netcoreapp3.1;net5.0;net6.0;net7.0;net8.0</TargetFrameworks>
+  </PropertyGroup>
+
  <ItemGroup>
    <None Include="./README.md" Pack="true" PackagePath="" />
  </ItemGroup>

  <ItemGroup>
-    <ProjectReference Include="..\DiscUtils\Library\DiscUtils.Core\DiscUtils.Core.csproj" PrivateAssets="All" />
-    <ProjectReference Include="..\DiscUtils\Library\DiscUtils.Iso9660\DiscUtils.Iso9660.csproj" PrivateAssets="All" />
-    <ProjectReference Include="..\DiscUtils\Library\DiscUtils.Streams\DiscUtils.Streams.csproj" PrivateAssets="All" />
-    <PackageReference Include="System.IO.Hashing" Version="8.0.0" />
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+    <PackageReference Include="SabreTools.Hashing" Version="1.1.4" />
  </ItemGroup>

-  <PropertyGroup>
-    <TargetsForTfmSpecificBuildOutput>$(TargetsForTfmSpecificBuildOutput);CopyProjectReferencesToPackage</TargetsForTfmSpecificBuildOutput>
-  </PropertyGroup>
-  <Target Name="CopyProjectReferencesToPackage" DependsOnTargets="BuildOnlySettings;ResolveReferences">
-    <ItemGroup>
-      <BuildOutputInPackage Include="@(ReferenceCopyLocalPaths-&gt;WithMetadataValue('ReferenceSourceTarget', 'ProjectReference')-&gt;WithMetadataValue('PrivateAssets', 'All'))" />
-    </ItemGroup>
-  </Target>
-	
 </Project>
@@ -2,7 +2,7 @@
 using System.Collections.Generic;
 using System.IO;
 using System.Text;
-using System.Text.Json;
+using Newtonsoft.Json;

 namespace LibIRD
 {
@@ -68,7 +68,7 @@ namespace LibIRD
            // Read SFB file version
            byte[] buf = br.ReadBytes(2);
            Array.Reverse(buf);
-            Version = BitConverter.ToUInt16(buf);
+            Version = BitConverter.ToUInt16(buf, 0);

            // Process all field headers
            sfbStream.Seek(0x20, SeekOrigin.Begin);
@@ -131,11 +131,6 @@ namespace LibIRD
            }
        }

-        /// <summary>
-        /// Define JSON options once
-        /// </summary>
-        private readonly JsonSerializerOptions JsonOpts = new() { WriteIndented = true };
-
        /// <summary>
        /// Prints parameters extracted from PS3_DISC.SFB to a json object
        /// </summary>
@@ -143,7 +138,7 @@ namespace LibIRD
        public void PrintJson(string jsonPath = null)
        {
            // Serialise PS3_Disc.SFB data to a JSON object
-            string json = JsonSerializer.Serialize(Field, JsonOpts);
+            string json = JsonConvert.SerializeObject(Field, Formatting.Indented);

            // If no path given, output to console
            if (jsonPath == null)
@@ -2,7 +2,7 @@
 using System.Collections.Generic;
 using System.IO;
 using System.Text;
-using System.Text.Json;
+using Newtonsoft.Json;

 namespace LibIRD
 {
@@ -154,11 +154,6 @@ namespace LibIRD
            }
        }

-        /// <summary>
-        /// Define JSON options once
-        /// </summary>
-        private readonly JsonSerializerOptions JsonOpts = new() { WriteIndented = true };
-
        /// <summary>
        /// Prints parameters extracted from PARAM.SFO to a json object
        /// </summary>
@@ -166,7 +161,7 @@ namespace LibIRD
        public void PrintJson(string jsonPath = null)
        {
            // Serialise PS3_Disc.SFB data to a JSON object
-            string json = JsonSerializer.Serialize(Field, JsonOpts);
+            string json = JsonConvert.SerializeObject(Field, Formatting.Indented);

            // If no path given, output to console
            if (jsonPath == null)
@@ -1,7 +1,5 @@
-using DiscUtils.Iso9660;
-using System;
+using System;
 using System.IO;
-using System.IO.Hashing;

 namespace LibIRD
 {
@@ -135,7 +133,7 @@ namespace LibIRD
            {
                // If no layerbreak provided, ensure ISO is not BD-Video hybrid
                using FileStream fs = new FileStream(isoPath, FileMode.Open, FileAccess.Read) ?? throw new FileNotFoundException(isoPath);
-                CDReader reader = new(fs, true, true);
+                DiscUtils.Iso9660.CDReader reader = new(fs);
                if (reader.DirectoryExists("\\BDMV"))
                    throw new ArgumentException("Layerbreak must be provided for BD-Video hybrid discs");
                // Assume disc has default layerbreak
@@ -232,39 +230,6 @@ namespace LibIRD
            return pic;
        }

-        /// <summary>
-        /// Generates the UID field by computing the CRC32 hash of the ISO
-        /// </summary>
-        /// <param name="isoPath">Path to the ISO</param>
-        /// <exception cref="FileNotFoundException"></exception>
-        private static uint GenerateUID(string isoPath)
-        {
-            // Check file exists
-            FileInfo iso;
-            try
-            {
-                iso = new FileInfo(isoPath);
-            }
-            catch (Exception e)
-            {
-                throw new ArgumentException("Invalid ISO Path: " + e.Message);
-            }
-            if (!iso.Exists)
-                throw new FileNotFoundException(nameof(isoPath));
-
-            // Compute CRC32 hash
-            byte[] crc32;
-            using (FileStream fs = File.OpenRead(isoPath))
-            {
-                Crc32 hasher = new();
-                hasher.Append(fs);
-                crc32 = hasher.GetCurrentHash();
-            }
-
-            // Redump ISO CRC32 hash is used as the Unique ID in the reproducible IRD
-            return BitConverter.ToUInt32(crc32, 0);
-        }
-
        /// <summary>
        /// Calculates ISO file size
        /// </summary>
@@ -13,6 +13,7 @@ IRDKit is a tool that allows direct use of LibIRD functionality from a command l
 - Printing info about all ISOs and IRDs in a folder: `irdkit info .`
 - Creating an IRD from an ISO: `irdkit create game.iso`
 - Finding differences between two IRDs: `irdkit diff game1.ird game2.ird`
+- Renaming a folder of IRDs using a redump DAT: `irdkit rename -d redump.dat IRDs\`

 For detailed usage, read more [here](IRDKit).
Author	SHA1	Message	Date
Deterous	c175fedbdb	Fix bug for small encrypted regions	2024-03-12 19:42:23 +09:00
Deterous	f7879bf9e8	Finalise old dotnet support	2024-03-12 19:08:42 +09:00
Deterous	fed9d6ea57	Trim DiscUtils further	2024-03-06 14:14:37 +09:00
Deterous	41946b6bc5	Use trimmed DiscUtils	2024-03-06 12:09:30 +09:00
Deterous	d585c4b534	Update ST.Hashing version	2024-03-06 12:09:15 +09:00
Deterous	1886e14a9b	Use a trimmed DiscUtils	2024-03-05 23:34:38 +09:00
Deterous	e8f4d88711	Use ST.Hashing for SHA1	2024-03-05 15:15:40 +09:00
Deterous	0dbc483a91	Use ST.Hashing for MD5	2024-03-05 15:02:27 +09:00
Deterous	b6bb5f0582	Attempt to support net40 with ST.Hashing	2024-03-05 14:52:30 +09:00
Deterous	ea3f6d3f96	Support .NET Framework using Newtonsoft	2024-03-05 13:02:25 +09:00
Deterous	4aa6aca25e	Support building LibIRD with older .NET Core	2024-03-05 12:33:18 +09:00
Deterous	a93c727ba2	Fix spacing	2024-03-05 12:11:34 +09:00
Deterous	55cab8202d	Subsume used DiscUtils libraries	2024-03-05 12:01:25 +09:00
Deterous	1fa7380f06	Move DiscUtils to within LibIRD subfolder	2024-03-05 11:01:54 +09:00
DeterousandGitHub	a0acd91a55	Update README.md	2024-03-01 12:35:06 +09:00