scripts

2026-06-04 11:42:34 +02:00
parent f39ba70a9f
commit e720b98cd1
7488 changed files with 2493818 additions and 0 deletions
@@ -0,0 +1,99 @@
+using System;
+using Mono.Security.Cryptography;
+
+namespace System.Security.Cryptography
+{
+	// Token: 0x0200053C RID: 1340
+	internal class TripleDESTransform : SymmetricTransform
+	{
+		// Token: 0x06003114 RID: 12564 RVA: 0x000A89E4 File Offset: 0x000A6BE4
+		public TripleDESTransform(TripleDES algo, bool encryption, byte[] key, byte[] iv)
+			: base(algo, encryption, iv)
+		{
+			if (key == null)
+			{
+				key = TripleDESTransform.GetStrongKey();
+			}
+			if (TripleDES.IsWeakKey(key))
+			{
+				string text = Locale.GetText("This is a known weak key.");
+				throw new CryptographicException(text);
+			}
+			byte[] array = new byte[8];
+			byte[] array2 = new byte[8];
+			byte[] array3 = new byte[8];
+			DES des = DES.Create();
+			Buffer.BlockCopy(key, 0, array, 0, 8);
+			Buffer.BlockCopy(key, 8, array2, 0, 8);
+			if (key.Length == 16)
+			{
+				Buffer.BlockCopy(key, 0, array3, 0, 8);
+			}
+			else
+			{
+				Buffer.BlockCopy(key, 16, array3, 0, 8);
+			}
+			if (encryption || algo.Mode == CipherMode.CFB)
+			{
+				this.E1 = new DESTransform(des, true, array, iv);
+				this.D2 = new DESTransform(des, false, array2, iv);
+				this.E3 = new DESTransform(des, true, array3, iv);
+			}
+			else
+			{
+				this.D1 = new DESTransform(des, false, array3, iv);
+				this.E2 = new DESTransform(des, true, array2, iv);
+				this.D3 = new DESTransform(des, false, array, iv);
+			}
+		}
+
+		// Token: 0x06003115 RID: 12565 RVA: 0x000A8AF8 File Offset: 0x000A6CF8
+		protected override void ECB(byte[] input, byte[] output)
+		{
+			DESTransform.Permutation(input, output, DESTransform.ipTab, false);
+			if (this.encrypt)
+			{
+				this.E1.ProcessBlock(output, output);
+				this.D2.ProcessBlock(output, output);
+				this.E3.ProcessBlock(output, output);
+			}
+			else
+			{
+				this.D1.ProcessBlock(output, output);
+				this.E2.ProcessBlock(output, output);
+				this.D3.ProcessBlock(output, output);
+			}
+			DESTransform.Permutation(output, output, DESTransform.fpTab, true);
+		}
+
+		// Token: 0x06003116 RID: 12566 RVA: 0x000A8B80 File Offset: 0x000A6D80
+		internal static byte[] GetStrongKey()
+		{
+			int num = DESTransform.BLOCK_BYTE_SIZE * 3;
+			byte[] array = KeyBuilder.Key(num);
+			while (TripleDES.IsWeakKey(array))
+			{
+				array = KeyBuilder.Key(num);
+			}
+			return array;
+		}
+
+		// Token: 0x04001406 RID: 5126
+		private DESTransform E1;
+
+		// Token: 0x04001407 RID: 5127
+		private DESTransform D2;
+
+		// Token: 0x04001408 RID: 5128
+		private DESTransform E3;
+
+		// Token: 0x04001409 RID: 5129
+		private DESTransform D1;
+
+		// Token: 0x0400140A RID: 5130
+		private DESTransform E2;
+
+		// Token: 0x0400140B RID: 5131
+		private DESTransform D3;
+	}
+}