Move CryptoOld

src/LibHac/CryptoOld.cs

@@ -1,103 +0,0 @@
-using System;
-using System.IO;
-using System.Security.Cryptography;
-using LibHac.Common;
-using LibHac.Crypto;
-using LibHac.FsSystem;
-
-using Aes = LibHac.Crypto.Aes;
-
-namespace LibHac;
-
-public static class CryptoOld
-{
-    public static void GenerateKek(byte[] key, byte[] src, byte[] dest, byte[] kekSeed, byte[] keySeed)
-    {
-        byte[] kek = new byte[Aes.KeySize128];
-        byte[] srcKek = new byte[Aes.KeySize128];
-
-        Aes.DecryptEcb128(kekSeed, kek, key);
-        Aes.DecryptEcb128(src, srcKek, kek);
-
-        if (keySeed != null)
-        {
-            Aes.DecryptEcb128(keySeed, dest, srcKek);
-        }
-        else
-        {
-            Array.Copy(srcKek, dest, Aes.KeySize128);
-        }
-    }
-
-    public static RSAParameters DecryptRsaKey(byte[] encryptedKey, byte[] kek)
-    {
-        byte[] counter = new byte[0x10];
-        Array.Copy(encryptedKey, counter, 0x10);
-        byte[] key = new byte[0x230];
-        Array.Copy(encryptedKey, 0x10, key, 0, 0x230);
-
-        new Aes128CtrTransform(kek, counter).TransformBlock(key);
-
-        byte[] d = new byte[0x100];
-        byte[] n = new byte[0x100];
-        byte[] e = new byte[4];
-        Array.Copy(key, 0, d, 0, 0x100);
-        Array.Copy(key, 0x100, n, 0, 0x100);
-        Array.Copy(key, 0x200, e, 0, 4);
-
-        RSAParameters rsaParams = Rsa.RecoverParameters(n, e, d);
-        TestRsaKey(rsaParams);
-        return rsaParams;
-    }
-
-    private static void TestRsaKey(RSAParameters keyParams)
-    {
-        var rsa = new RSACryptoServiceProvider();
-        rsa.ImportParameters(keyParams);
-
-        byte[] test = { 12, 34, 56, 78 };
-        byte[] testEnc = rsa.Encrypt(test, false);
-        byte[] testDec = rsa.Decrypt(testEnc, false);
-
-        if (!Utilities.ArraysEqual(test, testDec))
-        {
-            throw new InvalidDataException("Could not verify RSA key pair");
-        }
-    }
-
-    public static Validity Rsa2048Pkcs1Verify(byte[] data, byte[] signature, byte[] modulus) =>
-        Rsa.VerifyRsa2048Pkcs1Sha256(signature, modulus, new byte[] { 1, 0, 1 }, data)
-            ? Validity.Valid
-            : Validity.Invalid;
-
-    public static Validity Rsa2048PssVerify(byte[] data, byte[] signature, byte[] modulus) =>
-        Rsa.VerifyRsa2048PssSha256(signature, modulus, new byte[] { 1, 0, 1 }, data)
-            ? Validity.Valid
-            : Validity.Invalid;
-
-    public static byte[] DecryptRsaOaep(byte[] data, RSAParameters rsaParams)
-    {
-        var rsa = RSA.Create();
-
-        rsa.ImportParameters(rsaParams);
-        return rsa.Decrypt(data, RSAEncryptionPadding.OaepSHA256);
-    }
-
-    public static bool DecryptRsaOaep(ReadOnlySpan<byte> data, Span<byte> destination, RSAParameters rsaParams, out int bytesWritten)
-    {
-        using (var rsa = RSA.Create())
-        {
-            try
-            {
-                rsa.ImportParameters(rsaParams);
-
-                return rsa.TryDecrypt(data, destination, RSAEncryptionPadding.OaepSHA256, out bytesWritten);
-            }
-            catch (CryptographicException)
-            {
-                bytesWritten = 0;
-                return false;
-            }
-        }
-    }
-}

src/LibHac/Npdm/Acid.cs

@@ -3,6 +3,7 @@ using System;
 using System.IO;
 using LibHac.Common;
 using LibHac.Common.Keys;
+using LibHac.Tools.Crypto;
 
 namespace LibHac.Npdm;
 

src/LibHac/Tools/Crypto/CryptoOld.cs

@@ -0,0 +1,45 @@
+using System;
+using System.Security.Cryptography;
+using LibHac.Common;
+using LibHac.Crypto;
+
+namespace LibHac.Tools.Crypto;
+
+public static class CryptoOld
+{
+    public static Validity Rsa2048Pkcs1Verify(byte[] data, byte[] signature, byte[] modulus) =>
+        Rsa.VerifyRsa2048Pkcs1Sha256(signature, modulus, new byte[] { 1, 0, 1 }, data)
+            ? Validity.Valid
+            : Validity.Invalid;
+
+    public static Validity Rsa2048PssVerify(byte[] data, byte[] signature, byte[] modulus) =>
+        Rsa.VerifyRsa2048PssSha256(signature, modulus, new byte[] { 1, 0, 1 }, data)
+            ? Validity.Valid
+            : Validity.Invalid;
+
+    public static byte[] DecryptRsaOaep(byte[] data, RSAParameters rsaParams)
+    {
+        var rsa = RSA.Create();
+
+        rsa.ImportParameters(rsaParams);
+        return rsa.Decrypt(data, RSAEncryptionPadding.OaepSHA256);
+    }
+
+    public static bool DecryptRsaOaep(ReadOnlySpan<byte> data, Span<byte> destination, RSAParameters rsaParams, out int bytesWritten)
+    {
+        using (var rsa = RSA.Create())
+        {
+            try
+            {
+                rsa.ImportParameters(rsaParams);
+
+                return rsa.TryDecrypt(data, destination, RSAEncryptionPadding.OaepSHA256, out bytesWritten);
+            }
+            catch (CryptographicException)
+            {
+                bytesWritten = 0;
+                return false;
+            }
+        }
+    }
+}

src/LibHac/Tools/Es/Ticket.cs

@@ -2,6 +2,7 @@
 using System.IO;
 using LibHac.Common;
 using LibHac.Common.Keys;
+using LibHac.Tools.Crypto;
 using LibHac.Util;
 
 namespace LibHac.Tools.Es;

src/LibHac/Tools/Fs/XciHeader.cs

@@ -5,6 +5,7 @@ using LibHac.Common;
 using LibHac.Common.Keys;
 using LibHac.Crypto;
 using LibHac.Fs;
+using LibHac.Tools.Crypto;
 
 namespace LibHac.Tools.Fs;
 

src/LibHac/Tools/FsSystem/NcaUtils/Nca.cs

@@ -11,6 +11,7 @@ using LibHac.Fs;
 using LibHac.Fs.Fsa;
 using LibHac.FsSystem;
 using LibHac.Spl;
+using LibHac.Tools.Crypto;
 using LibHac.Tools.FsSystem.RomFs;
 
 namespace LibHac.Tools.FsSystem.NcaUtils;

src/LibHac/Tools/FsSystem/NcaUtils/NcaHeader.cs

@@ -8,6 +8,7 @@ using LibHac.Crypto;
 using LibHac.Diag;
 using LibHac.Fs;
 using LibHac.FsSystem;
+using LibHac.Tools.Crypto;
 using LibHac.Util;
 
 namespace LibHac.Tools.FsSystem.NcaUtils;