资源简介

实现国密SM3算法验证和SM4算法CBC模式下文件加密操作,基于.net环境VS2017开发。

资源截图

代码片段和文件信息

using System;
using Org.BouncyCastle.Crypto;
namespace HmH.base.SmHelper.cipher
{
    public abstract class GeneralDigest : IDigest
    {
        private const int BYTE_LENGTH = 64;

        private byte[] xBuf;
        private int xBufOff;

        private long byteCount;

        internal GeneralDigest()
        {
            xBuf = new byte[4];
        }

        internal GeneralDigest(GeneralDigest t)
        {
            xBuf = new byte[t.xBuf.Length];
            Array.Copy(t.xBuf 0 xBuf 0 t.xBuf.Length);

            xBufOff = t.xBufOff;
            byteCount = t.byteCount;
        }

        public void Update(byte input)
        {
            xBuf[xBufOff++] = input;

            if (xBufOff == xBuf.Length)
            {
                ProcessWord(xBuf 0);
                xBufOff = 0;
            }

            byteCount++;
        }

        public void BlockUpdate(
            byte[] input
            int inOff
            int length)
        {
            //
            // fill the current word
            //
            while ((xBufOff != 0) && (length > 0))
            {
                Update(input[inOff]);
                inOff++;
                length--;
            }

            //
            // process whole words.
            //
            while (length > xBuf.Length)
            {
                ProcessWord(input inOff);

                inOff += xBuf.Length;
                length -= xBuf.Length;
                byteCount += xBuf.Length;
            }

            //
            // load in the remainder.
            //
            while (length > 0)
            {
                Update(input[inOff]);

                inOff++;
                length--;
            }
        }

        public void Finish()
        {
            long bitLength = (byteCount << 3);

            //
            // add the pad bytes.
            //
            Update(unchecked((byte)128));

            while (xBufOff != 0) Update(unchecked((byte)0));
            ProcessLength(bitLength);
            ProcessBlock();
        }

        public virtual void Reset()
        {
            byteCount = 0;
            xBufOff = 0;
            Array.Clear(xBuf 0 xBuf.Length);
        }

        public int GetByteLength()
        {
            return BYTE_LENGTH;
        }

        internal abstract void ProcessWord(byte[] input int inOff);
        internal abstract void ProcessLength(long bitLength);
        internal abstract void ProcessBlock();
        public abstract string AlgorithmName { get; }
        public abstract int GetDigestSize();
        public abstract int DoFinal(byte[] output int outOff);
    }

    public class SupportClass
    {
        /// 
        /// Performs an unsigned bitwise right shift with the specified number
        /// 

        ///Number to operate on
  

 属性            大小     日期    时间   名称
----------- ---------  ---------- -----  ----

     文件    2277376  2019-01-15 16:05  smHelper\bin\Debug\BouncyCastle.dll

     文件    1453726  2019-01-15 16:05  smHelper\bin\Debug\BouncyCastle.xml

     文件      13312  2019-01-16 17:58  smHelper\bin\Debug\SmHelper.dll

     文件      38400  2019-01-16 17:58  smHelper\bin\Debug\SmHelper.pdb

     文件      10648  2019-01-16 17:41  smHelper\cipher\SM3Digest.cs

     文件      14323  2019-01-16 17:30  smHelper\cipher\SM4.cs

     文件       3565  2019-01-16 16:23  smHelper\cipher\SM4Utils.cs

     文件        620  2019-01-16 16:18  smHelper\cipher\SM4_Context.cs

     文件       5831  2019-01-16 17:31  smHelper\obj\Debug\DesignTimeResolveAssemblyReferencesInput.cache

     文件          0  2019-01-16 17:58  smHelper\obj\Debug\smHelper.csproj.CopyComplete

     文件         42  2019-01-16 17:31  smHelper\obj\Debug\smHelper.csproj.CoreCompileInputs.cache

     文件        580  2019-01-16 17:29  smHelper\obj\Debug\smHelper.csproj.FileListAbsolute.txt

     文件       4451  2019-01-16 17:29  smHelper\obj\Debug\smHelper.csprojResolveAssemblyReference.cache

     文件      13312  2019-01-16 17:58  smHelper\obj\Debug\SmHelper.dll

     文件      38400  2019-01-16 17:58  smHelper\obj\Debug\SmHelper.pdb

     文件       1305  2019-01-10 16:59  smHelper\Properties\AssemblyInfo.cs

     文件       2199  2019-01-16 17:58  smHelper\smHelper.csproj

     文件    2277376  2019-01-15 16:05  smTools\bin\Debug\BouncyCastle.dll

     文件    1453726  2019-01-15 16:05  smTools\bin\Debug\BouncyCastle.xml

     文件      13312  2019-01-16 17:58  smTools\bin\Debug\SmHelper.dll

     文件      38400  2019-01-16 17:58  smTools\bin\Debug\SmHelper.pdb

     文件      12800  2019-01-16 18:13  smTools\bin\Debug\SmTools.exe

     文件      24064  2019-01-16 18:13  smTools\bin\Debug\SmTools.pdb

     文件       8772  2019-01-16 18:13  smTools\Form1.cs

     文件       7898  2019-01-16 17:24  smTools\Form1.Designer.cs

     文件       5817  2019-01-16 17:24  smTools\Form1.resx

     文件       1230  2019-01-10 17:56  smTools\obj\Debug\DesignTimeResolveAssemblyReferences.cache

     文件       6189  2019-01-16 18:12  smTools\obj\Debug\DesignTimeResolveAssemblyReferencesInput.cache

     文件        180  2019-01-16 18:13  smTools\obj\Debug\HmH.Form.SmTools.Properties.Resources.resources

     文件          0  2019-01-16 18:13  smTools\obj\Debug\smTools.csproj.CopyComplete

............此处省略36个文件信息

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