Add Sha256Generator

src/LibHac/Crypto/Detail/HashState.cs

@@ -0,0 +1,9 @@
+namespace LibHac.Crypto.Detail
+{
+    public enum HashState
+    {
+        Initial = 0,
+        Initialized,
+        Done
+    }
+}

src/LibHac/Crypto/Detail/Sha256Impl.cs

@@ -0,0 +1,52 @@
+using System;
+using System.Diagnostics;
+using System.Security.Cryptography;
+using LibHac.Common;
+
+namespace LibHac.Crypto.Detail
+{
+    public struct Sha256Impl
+    {
+        private SHA256 _baseHash;
+        private HashState _state;
+
+        public void Initialize()
+        {
+            if (_state == HashState.Initial)
+            {
+                _baseHash = SHA256.Create();
+            }
+            else
+            {
+                _baseHash.Initialize();
+            }
+
+            _state = HashState.Initialized;
+        }
+
+        public void Update(ReadOnlySpan<byte> data)
+        {
+            Debug.Assert(_state == HashState.Initialized);
+
+            using var rented = new RentedArray<byte>(data.Length);
+
+            data.CopyTo(rented.Span);
+
+            _baseHash.TransformBlock(rented.Array, 0, data.Length, null, 0);
+        }
+
+        public void GetHash(Span<byte> hashBuffer)
+        {
+            Debug.Assert(_state == HashState.Initialized || _state == HashState.Done);
+            Debug.Assert(hashBuffer.Length >= Sha256.DigestSize);
+
+            if (_state == HashState.Initialized)
+            {
+                _baseHash.TransformFinalBlock(new byte[0], 0, 0);
+                _state = HashState.Done;
+            }
+
+            _baseHash.Hash.CopyTo(hashBuffer);
+        }
+    }
+}

src/LibHac/Crypto/IHash.cs

@@ -0,0 +1,11 @@
+using System;
+
+namespace LibHac.Crypto
+{
+    public interface IHash
+    {
+        void Initialize();
+        void Update(ReadOnlySpan<byte> data);
+        void GetHash(Span<byte> hashBuffer);
+    }
+}

src/LibHac/Crypto/Sha256.cs

@@ -0,0 +1,24 @@
+using System;
+using LibHac.Crypto.Detail;
+
+namespace LibHac.Crypto
+{
+    public static class Sha256
+    {
+        public const int DigestSize = 0x20;
+
+        public static IHash CreateSha256Generator()
+        {
+            return new Sha256Generator();
+        }
+
+        public static void GenerateSha256Hash(ReadOnlySpan<byte> data, Span<byte> hashBuffer)
+        {
+            var sha256 = new Sha256Impl();
+            sha256.Initialize();
+
+            sha256.Update(data);
+            sha256.GetHash(hashBuffer);
+        }
+    }
+}

src/LibHac/Crypto/Sha256Generator.cs

@@ -0,0 +1,30 @@
+using System;
+using LibHac.Crypto.Detail;
+
+namespace LibHac.Crypto
+{
+    public class Sha256Generator : IHash
+    {
+        private Sha256Impl _baseHash;
+
+        public Sha256Generator()
+        {
+            _baseHash = new Sha256Impl();
+        }
+
+        public void Initialize()
+        {
+            _baseHash.Initialize();
+        }
+
+        public void Update(ReadOnlySpan<byte> data)
+        {
+            _baseHash.Update(data);
+        }
+
+        public void GetHash(Span<byte> hashBuffer)
+        {
+            _baseHash.GetHash(hashBuffer);
+        }
+    }
+}

tests/LibHac.Tests/CryptoTests/AesCbcTests.cs

@@ -6,16 +6,16 @@ namespace LibHac.Tests.CryptoTests
     public class AesCbcTests
     {
         public static TheoryData<EncryptionTestVector> EncryptTestVectors =
-            RspReader.ReadTestVectors(true, "CBCVarKey128.rsp", "CBCVarTxt128.rsp", "CBCKeySbox128.rsp", "CBCGFSbox128.rsp");
+            RspReader.ReadEncryptionTestVectors(true, "CBCVarKey128.rsp", "CBCVarTxt128.rsp", "CBCKeySbox128.rsp", "CBCGFSbox128.rsp");
 
         public static TheoryData<EncryptionTestVector> DecryptTestVectors =
-            RspReader.ReadTestVectors(false, "CBCVarKey128.rsp", "CBCVarTxt128.rsp", "CBCKeySbox128.rsp", "CBCGFSbox128.rsp");
+            RspReader.ReadEncryptionTestVectors(false, "CBCVarKey128.rsp", "CBCVarTxt128.rsp", "CBCKeySbox128.rsp", "CBCGFSbox128.rsp");
 
         public static TheoryData<EncryptionTestVector> EncryptMultiTestVectors =
-            RspReader.ReadTestVectors(true, "CBCMMT128.rsp");
+            RspReader.ReadEncryptionTestVectors(true, "CBCMMT128.rsp");
 
         public static TheoryData<EncryptionTestVector> DecryptMultiTestVectors =
-            RspReader.ReadTestVectors(false, "CBCMMT128.rsp");
+            RspReader.ReadEncryptionTestVectors(false, "CBCMMT128.rsp");
 
         [Theory]
         [MemberData(nameof(EncryptTestVectors))]

tests/LibHac.Tests/CryptoTests/AesCtrTests.cs

@@ -5,7 +5,7 @@ namespace LibHac.Tests.CryptoTests
 {
     public class AesCtrTests
     {
-        public static TheoryData<EncryptionTestVector> TestVectors = RspReader.ReadTestVectors(true, "CTR128.rsp");
+        public static TheoryData<EncryptionTestVector> TestVectors = RspReader.ReadEncryptionTestVectors(true, "CTR128.rsp");
 
         [Theory]
         [MemberData(nameof(TestVectors))]

tests/LibHac.Tests/CryptoTests/AesEcbTests.cs

@@ -6,16 +6,16 @@ namespace LibHac.Tests.CryptoTests
     public class AesEcbTests
     {
         public static TheoryData<EncryptionTestVector> EncryptTestVectors =
-            RspReader.ReadTestVectors(true, "ECBVarKey128.rsp", "ECBVarTxt128.rsp", "ECBKeySbox128.rsp", "ECBGFSbox128.rsp");
+            RspReader.ReadEncryptionTestVectors(true, "ECBVarKey128.rsp", "ECBVarTxt128.rsp", "ECBKeySbox128.rsp", "ECBGFSbox128.rsp");
 
         public static TheoryData<EncryptionTestVector> DecryptTestVectors =
-            RspReader.ReadTestVectors(false, "ECBVarKey128.rsp", "ECBVarTxt128.rsp", "ECBKeySbox128.rsp", "ECBGFSbox128.rsp");
+            RspReader.ReadEncryptionTestVectors(false, "ECBVarKey128.rsp", "ECBVarTxt128.rsp", "ECBKeySbox128.rsp", "ECBGFSbox128.rsp");
 
         public static TheoryData<EncryptionTestVector> EncryptMultiTestVectors =
-            RspReader.ReadTestVectors(true, "ECBMMT128.rsp");
+            RspReader.ReadEncryptionTestVectors(true, "ECBMMT128.rsp");
 
         public static TheoryData<EncryptionTestVector> DecryptMultiTestVectors =
-            RspReader.ReadTestVectors(false, "ECBMMT128.rsp");
+            RspReader.ReadEncryptionTestVectors(false, "ECBMMT128.rsp");
 
         [Theory]
         [MemberData(nameof(EncryptTestVectors))]

tests/LibHac.Tests/CryptoTests/AesXtsTests.cs

@@ -9,10 +9,10 @@ namespace LibHac.Tests.CryptoTests
     public class AesXtsTests
     {
         public static TheoryData<EncryptionTestVector> EncryptTestVectors =
-            RemovePartialByteTests(RspReader.ReadTestVectors(true, "XTSGenAES128.rsp"));
+            RemovePartialByteTests(RspReader.ReadEncryptionTestVectors(true, "XTSGenAES128.rsp"));
 
         public static TheoryData<EncryptionTestVector> DecryptTestVectors =
-            RemovePartialByteTests(RspReader.ReadTestVectors(false, "XTSGenAES128.rsp"));
+            RemovePartialByteTests(RspReader.ReadEncryptionTestVectors(false, "XTSGenAES128.rsp"));
 
         // The XTS implementation only supports multiples of whole bytes
         private static TheoryData<EncryptionTestVector> RemovePartialByteTests(TheoryData<EncryptionTestVector> input)

tests/LibHac.Tests/CryptoTests/Common.cs

@@ -15,5 +15,17 @@ namespace LibHac.Tests.CryptoTests
 
             Assert.Equal(expected, transformBuffer);
         }
+
+        internal static void HashTestCore(ReadOnlySpan<byte> message, byte[] expectedDigest, IHash hash)
+        {
+
+            var digestBuffer = new byte[Sha256.DigestSize];
+
+            hash.Initialize();
+            hash.Update(message);
+            hash.GetHash(digestBuffer);
+
+            Assert.Equal(expectedDigest, digestBuffer);
+        }
     }
 }

tests/LibHac.Tests/CryptoTests/RspReader.cs

@@ -16,7 +16,7 @@ namespace LibHac.Tests.CryptoTests
             Reader = new StreamReader(stream);
         }
 
-        public IEnumerable<EncryptionTestVector> GetTestVectors()
+        public IEnumerable<EncryptionTestVector> GetEncryptionTestVectors()
         {
             string line;
             bool isEncryptType = false;
@@ -83,7 +83,7 @@ namespace LibHac.Tests.CryptoTests
             }
         }
 
-        public static TheoryData<EncryptionTestVector> ReadTestVectors(bool getEncryptTests, params string[] filenames)
+        public static TheoryData<EncryptionTestVector> ReadEncryptionTestVectors(bool getEncryptTests, params string[] filenames)
         {
             IEnumerable<string> resourcePaths = filenames.Select(x => $"LibHac.Tests.CryptoTests.TestVectors.{x}");
             var testVectors = new TheoryData<EncryptionTestVector>();
@@ -94,13 +94,80 @@ namespace LibHac.Tests.CryptoTests
                 {
                     var reader = new RspReader(stream);
 
-                    foreach (EncryptionTestVector tv in reader.GetTestVectors().Where(x => x.Encrypt == getEncryptTests))
+                    foreach (EncryptionTestVector tv in reader.GetEncryptionTestVectors().Where(x => x.Encrypt == getEncryptTests))
                     {
                         testVectors.Add(tv);
                     }
                 }
             }
-            
+
+            return testVectors;
+        }
+
+        public IEnumerable<HashTestVector> GetHashTestVectors()
+        {
+            string line;
+
+            var testVector = new HashTestVector();
+            bool canOutputVector = false;
+
+            while ((line = Reader.ReadLine()?.Trim()) != null)
+            {
+                if (line.Length == 0)
+                {
+                    if (canOutputVector)
+                    {
+                        yield return testVector;
+
+                        testVector = new HashTestVector();
+                        canOutputVector = false;
+                    }
+
+                    continue;
+                }
+
+                if (line[0] == '#') continue;
+                if (line[0] == '[') continue;
+
+                string[] kvp = line.Split(new[] { " = " }, StringSplitOptions.None);
+                if (kvp.Length != 2) throw new InvalidDataException();
+
+                canOutputVector = true;
+
+                switch (kvp[0].ToUpperInvariant())
+                {
+                    case "LEN":
+                        testVector.LengthBits = int.Parse(kvp[1]);
+                        testVector.LengthBytes = testVector.LengthBits / 8;
+                        break;
+                    case "MSG":
+                        testVector.Message = kvp[1].ToBytes();
+                        break;
+                    case "MD":
+                        testVector.Digest = kvp[1].ToBytes();
+                        break;
+                }
+            }
+        }
+
+        public static TheoryData<HashTestVector> ReadHashTestVectors(params string[] filenames)
+        {
+            IEnumerable<string> resourcePaths = filenames.Select(x => $"LibHac.Tests.CryptoTests.TestVectors.{x}");
+            var testVectors = new TheoryData<HashTestVector>();
+
+            foreach (string path in resourcePaths)
+            {
+                using (Stream stream = Assembly.GetExecutingAssembly().GetManifestResourceStream(path))
+                {
+                    var reader = new RspReader(stream);
+
+                    foreach (HashTestVector tv in reader.GetHashTestVectors())
+                    {
+                        testVectors.Add(tv);
+                    }
+                }
+            }
+
             return testVectors;
         }
     }
@@ -115,4 +182,12 @@ namespace LibHac.Tests.CryptoTests
         public byte[] PlainText { get; set; }
         public byte[] CipherText { get; set; }
     }
+
+    public class HashTestVector
+    {
+        public int LengthBits { get; set; }
+        public int LengthBytes { get; set; }
+        public byte[] Message { get; set; }
+        public byte[] Digest { get; set; }
+    }
 }

tests/LibHac.Tests/CryptoTests/Sha256Tests.cs

@@ -0,0 +1,19 @@
+using System;
+using LibHac.Crypto;
+using Xunit;
+
+namespace LibHac.Tests.CryptoTests
+{
+    public class Sha256Tests
+    {
+        public static TheoryData<HashTestVector> TestVectors =
+            RspReader.ReadHashTestVectors("SHA256ShortMsg.rsp", "SHA256LongMsg.rsp");
+
+        [Theory]
+        [MemberData(nameof(TestVectors))]
+        public static void Encrypt(HashTestVector tv)
+        {
+            Common.HashTestCore(tv.Message.AsSpan(0, tv.LengthBytes), tv.Digest, Sha256.CreateSha256Generator());
+        }
+    }
+}

tests/LibHac.Tests/CryptoTests/TestVectors/SHA256ShortMsg.rsp

@@ -0,0 +1,267 @@
+#  CAVS 11.0
+#  "SHA-256 ShortMsg" information
+#  SHA-256 tests are configured for BYTE oriented implementations
+#  Generated on Tue Mar 15 08:23:38 2011
+
+[L = 32]
+
+Len = 0
+Msg = 00
+MD = e3b0c44298fc1c149afbf4c8996fb92427ae41e4649b934ca495991b7852b855
+
+Len = 8
+Msg = d3
+MD = 28969cdfa74a12c82f3bad960b0b000aca2ac329deea5c2328ebc6f2ba9802c1
+
+Len = 16
+Msg = 11af
+MD = 5ca7133fa735326081558ac312c620eeca9970d1e70a4b95533d956f072d1f98
+
+Len = 24
+Msg = b4190e
+MD = dff2e73091f6c05e528896c4c831b9448653dc2ff043528f6769437bc7b975c2
+
+Len = 32
+Msg = 74ba2521
+MD = b16aa56be3880d18cd41e68384cf1ec8c17680c45a02b1575dc1518923ae8b0e
+
+Len = 40
+Msg = c299209682
+MD = f0887fe961c9cd3beab957e8222494abb969b1ce4c6557976df8b0f6d20e9166
+
+Len = 48
+Msg = e1dc724d5621
+MD = eca0a060b489636225b4fa64d267dabbe44273067ac679f20820bddc6b6a90ac
+
+Len = 56
+Msg = 06e076f5a442d5
+MD = 3fd877e27450e6bbd5d74bb82f9870c64c66e109418baa8e6bbcff355e287926
+
+Len = 64
+Msg = 5738c929c4f4ccb6
+MD = 963bb88f27f512777aab6c8b1a02c70ec0ad651d428f870036e1917120fb48bf
+
+Len = 72
+Msg = 3334c58075d3f4139e
+MD = 078da3d77ed43bd3037a433fd0341855023793f9afd08b4b08ea1e5597ceef20
+
+Len = 80
+Msg = 74cb9381d89f5aa73368
+MD = 73d6fad1caaa75b43b21733561fd3958bdc555194a037c2addec19dc2d7a52bd
+
+Len = 88
+Msg = 76ed24a0f40a41221ebfcf
+MD = 044cef802901932e46dc46b2545e6c99c0fc323a0ed99b081bda4216857f38ac
+
+Len = 96
+Msg = 9baf69cba317f422fe26a9a0
+MD = fe56287cd657e4afc50dba7a3a54c2a6324b886becdcd1fae473b769e551a09b
+
+Len = 104
+Msg = 68511cdb2dbbf3530d7fb61cbc
+MD = af53430466715e99a602fc9f5945719b04dd24267e6a98471f7a7869bd3b4313
+
+Len = 112
+Msg = af397a8b8dd73ab702ce8e53aa9f
+MD = d189498a3463b18e846b8ab1b41583b0b7efc789dad8a7fb885bbf8fb5b45c5c
+
+Len = 120
+Msg = 294af4802e5e925eb1c6cc9c724f09
+MD = dcbaf335360de853b9cddfdafb90fa75567d0d3d58af8db9d764113aef570125
+
+Len = 128
+Msg = 0a27847cdc98bd6f62220b046edd762b
+MD = 80c25ec1600587e7f28b18b1b18e3cdc89928e39cab3bc25e4d4a4c139bcedc4
+
+Len = 136
+Msg = 1b503fb9a73b16ada3fcf1042623ae7610
+MD = d5c30315f72ed05fe519a1bf75ab5fd0ffec5ac1acb0daf66b6b769598594509
+
+Len = 144
+Msg = 59eb45bbbeb054b0b97334d53580ce03f699
+MD = 32c38c54189f2357e96bd77eb00c2b9c341ebebacc2945f97804f59a93238288
+
+Len = 152
+Msg = 58e5a3259cb0b6d12c83f723379e35fd298b60
+MD = 9b5b37816de8fcdf3ec10b745428708df8f391c550ea6746b2cafe019c2b6ace
+
+Len = 160
+Msg = c1ef39cee58e78f6fcdc12e058b7f902acd1a93b
+MD = 6dd52b0d8b48cc8146cebd0216fbf5f6ef7eeafc0ff2ff9d1422d6345555a142
+
+Len = 168
+Msg = 9cab7d7dcaec98cb3ac6c64dd5d4470d0b103a810c
+MD = 44d34809fc60d1fcafa7f37b794d1d3a765dd0d23194ebbe340f013f0c39b613
+
+Len = 176
+Msg = ea157c02ebaf1b22de221b53f2353936d2359d1e1c97
+MD = 9df5c16a3f580406f07d96149303d8c408869b32053b726cf3defd241e484957
+
+Len = 184
+Msg = da999bc1f9c7acff32828a73e672d0a492f6ee895c6867
+MD = 672b54e43f41ee77584bdf8bf854d97b6252c918f7ea2d26bc4097ea53a88f10
+
+Len = 192
+Msg = 47991301156d1d977c0338efbcad41004133aefbca6bcf7e
+MD = feeb4b2b59fec8fdb1e55194a493d8c871757b5723675e93d3ac034b380b7fc9
+
+Len = 200
+Msg = 2e7ea84da4bc4d7cfb463e3f2c8647057afff3fbececa1d200
+MD = 76e3acbc718836f2df8ad2d0d2d76f0cfa5fea0986be918f10bcee730df441b9
+
+Len = 208
+Msg = 47c770eb4549b6eff6381d62e9beb464cd98d341cc1c09981a7a
+MD = 6733809c73e53666c735b3bd3daf87ebc77c72756150a616a194108d71231272
+
+Len = 216
+Msg = ac4c26d8b43b8579d8f61c9807026e83e9b586e1159bd43b851937
+MD = 0e6e3c143c3a5f7f38505ed6adc9b48c18edf6dedf11635f6e8f9ac73c39fe9e
+
+Len = 224
+Msg = 0777fc1e1ca47304c2e265692838109e26aab9e5c4ae4e8600df4b1f
+MD = ffb4fc03e054f8ecbc31470fc023bedcd4a406b9dd56c71da1b660dcc4842c65
+
+Len = 232
+Msg = 1a57251c431d4e6c2e06d65246a296915071a531425ecf255989422a66
+MD = c644612cd326b38b1c6813b1daded34448805aef317c35f548dfb4a0d74b8106
+
+Len = 240
+Msg = 9b245fdad9baeb890d9c0d0eff816efb4ca138610bc7d78cb1a801ed3273
+MD = c0e29eeeb0d3a7707947e623cdc7d1899adc70dd7861205ea5e5813954fb7957
+
+Len = 248
+Msg = 95a765809caf30ada90ad6d61c2b4b30250df0a7ce23b7753c9187f4319ce2
+MD = a4139b74b102cf1e2fce229a6cd84c87501f50afa4c80feacf7d8cf5ed94f042
+
+Len = 256
+Msg = 09fc1accc230a205e4a208e64a8f204291f581a12756392da4b8c0cf5ef02b95
+MD = 4f44c1c7fbebb6f9601829f3897bfd650c56fa07844be76489076356ac1886a4
+
+Len = 264
+Msg = 0546f7b8682b5b95fd32385faf25854cb3f7b40cc8fa229fbd52b16934aab388a7
+MD = b31ad3cd02b10db282b3576c059b746fb24ca6f09fef69402dc90ece7421cbb7
+
+Len = 272
+Msg = b12db4a1025529b3b7b1e45c6dbc7baa8897a0576e66f64bf3f8236113a6276ee77d
+MD = 1c38bf6bbfd32292d67d1d651fd9d5b623b6ec1e854406223f51d0df46968712
+
+Len = 280
+Msg = e68cb6d8c1866c0a71e7313f83dc11a5809cf5cfbeed1a587ce9c2c92e022abc1644bb
+MD = c2684c0dbb85c232b6da4fb5147dd0624429ec7e657991edd95eda37a587269e
+
+Len = 288
+Msg = 4e3d8ac36d61d9e51480831155b253b37969fe7ef49db3b39926f3a00b69a36774366000
+MD = bf9d5e5b5393053f055b380baed7e792ae85ad37c0ada5fd4519542ccc461cf3
+
+Len = 296
+Msg = 03b264be51e4b941864f9b70b4c958f5355aac294b4b87cb037f11f85f07eb57b3f0b89550
+MD = d1f8bd684001ac5a4b67bbf79f87de524d2da99ac014dec3e4187728f4557471
+
+Len = 304
+Msg = d0fefd96787c65ffa7f910d6d0ada63d64d5c4679960e7f06aeb8c70dfef954f8e39efdb629b
+MD = 49ba38db85c2796f85ffd57dd5ec337007414528ae33935b102d16a6b91ba6c1
+
+Len = 312
+Msg = b7c79d7e5f1eeccdfedf0e7bf43e730d447e607d8d1489823d09e11201a0b1258039e7bd4875b1
+MD = 725e6f8d888ebaf908b7692259ab8839c3248edd22ca115bb13e025808654700
+
+Len = 320
+Msg = 64cd363ecce05fdfda2486d011a3db95b5206a19d3054046819dd0d36783955d7e5bf8ba18bf738a
+MD = 32caef024f84e97c30b4a7b9d04b678b3d8a6eb2259dff5b7f7c011f090845f8
+
+Len = 328
+Msg = 6ac6c63d618eaf00d91c5e2807e83c093912b8e202f78e139703498a79c6067f54497c6127a23910a6
+MD = 4bb33e7c6916e08a9b3ed6bcef790aaaee0dcf2e7a01afb056182dea2dad7d63
+
+Len = 336
+Msg = d26826db9baeaa892691b68900b96163208e806a1da077429e454fa011840951a031327e605ab82ecce2
+MD = 3ac7ac6bed82fdc8cd15b746f0ee7489158192c238f371c1883c9fe90b3e2831
+
+Len = 344
+Msg = 3f7a059b65d6cb0249204aac10b9f1a4ac9e5868adebbe935a9eb5b9019e1c938bfc4e5c5378997a3947f2
+MD = bfce809534eefe871273964d32f091fe756c71a7f512ef5f2300bcd57f699e74
+
+Len = 352
+Msg = 60ffcb23d6b88e485b920af81d1083f6291d06ac8ca3a965b85914bc2add40544a027fca936bbde8f359051c
+MD = 1d26f3e04f89b4eaa9dbed9231bb051eef2e8311ad26fe53d0bf0b821eaf7567
+
+Len = 360
+Msg = 9ecd07b684bb9e0e6692e320cec4510ca79fcdb3a2212c26d90df65db33e692d073cc174840db797504e482eef
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