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https://github.com/vxunderground/MalwareSourceCode.git
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f2ac1ece55
add
55 lines
2.6 KiB
C#
55 lines
2.6 KiB
C#
// Decompiled with JetBrains decompiler
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// Type: Microsoft.InfoCards.HashUtility
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// Assembly: infocard, Version=3.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089
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// MVID: 516D8B44-4448-4D2C-8B8E-FFBB3FFE472B
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// Assembly location: C:\Users\Administrateur\Downloads\Virusshare-00000-msil\Virus.Win32.Expiro.w-69bb73081eac86b8cf86f45e33515d0095855636967076e2b593d7a30cd80a07.exe
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using Microsoft.InfoCards.Diagnostics;
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using System;
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using System.Security.Cryptography;
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namespace Microsoft.InfoCards
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{
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internal static class HashUtility
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{
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public const string HashAlgorithmName = "SHA256";
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private static object s_lock = new object();
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private static SHA256Managed s_hasher = new SHA256Managed();
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public static int HashBitLength => HashUtility.s_hasher.HashSize;
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public static int HashBufferLength => HashUtility.HashBitLength / 8;
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public static void SetHashValue(byte[] data, int dataIndex, byte[] dataToHash)
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{
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if (dataToHash == null)
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throw InfoCardTrace.ThrowHelperArgumentNull(nameof (dataToHash));
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HashUtility.SetHashValue(data, dataIndex, dataToHash, 0, dataToHash.Length);
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}
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public static void SetHashValue(
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byte[] data,
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int dataIndex,
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byte[] dataToHash,
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int dataToHashIndex,
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int dataToHashSize)
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{
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if (data == null)
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throw InfoCardTrace.ThrowHelperArgumentNull(nameof (data));
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if (dataIndex < 0 || dataIndex >= data.Length)
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throw InfoCardTrace.ThrowHelperError((Exception) new ArgumentOutOfRangeException(nameof (dataIndex), (object) dataIndex, SR.GetString("StoreHashUtilityDataOutOfRange")));
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if (dataToHash == null)
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throw InfoCardTrace.ThrowHelperArgumentNull(nameof (dataToHash));
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if (dataToHashIndex < 0 || dataToHashIndex > dataToHash.Length)
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throw InfoCardTrace.ThrowHelperError((Exception) new ArgumentOutOfRangeException(nameof (dataToHashIndex), (object) dataToHashIndex, SR.GetString("StoreHashUtilityDataToHashOutOfRange")));
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if (dataToHashSize < 0 || dataToHashSize > dataToHash.Length - dataToHashIndex)
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throw InfoCardTrace.ThrowHelperError((Exception) new ArgumentOutOfRangeException(nameof (dataToHashIndex), (object) dataToHashIndex, SR.GetString("StoreHashUtilityDataToHashOutOfRange")));
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byte[] sourceArray = (byte[]) null;
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lock (HashUtility.s_lock)
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sourceArray = HashUtility.s_hasher.ComputeHash(dataToHash, dataToHashIndex, dataToHashSize);
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Array.Copy((Array) sourceArray, 0, (Array) data, dataIndex, sourceArray.Length);
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Array.Clear((Array) sourceArray, 0, sourceArray.Length);
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}
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}
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}
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