📄 form1.cs
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{
HashCodeOutput.Clear();
if (openFileDialog1.ShowDialog() == DialogResult.OK)
messageInput.LoadFile(openFileDialog1.FileName, RichTextBoxStreamType.PlainText);
}
private void clearAll_Click(object sender, EventArgs e)
{
messageInput.Clear();
HashCodeOutput.Clear();
}
// MD5代码部分结束
// AES代码部分开始
class BYTE4
{
private byte[] byte4;
public byte[] Byte4
{
get { return byte4; }
set
{
byte4 = value;
}
}
}
class AES
{
private BYTE4[] expandKey; // 扩展密钥
public BYTE4[] ExpandKey
{
get { return expandKey; }
set { expandKey = value; }
}
private string keySeed; // 密钥种子
public string KeySeed
{
get { return keySeed; }
set { keySeed = value; }
}
private int keySize; // 密钥大小（位）
public int KeySize
{
get { return keySize; }
set { keySize = value; }
}
private int nr; // 加密轮数
public int Nr
{
get { return nr; }
set { nr = value; }
}
private int nb; // 分组长度（字节）
public int Nb
{
get { return nb; }
set { nb = value; }
}
private int nk; // 密钥长度（字节）
public int Nk
{
get { return nk; }
set { nk = value; }
}
private int blockSize; // 分组大小（位）
public int BlockSize
{
get { return blockSize; }
set { blockSize = value; }
}
private System.Collections.Generic.List<byte[,]> state; // 加密矩阵
public System.Collections.Generic.List<byte[,]> State
{
get { return state; }
set { state = value; }
}
private string invMessage; // 解密后的消息
public string InvMessage
{
get { return invMessage; }
set { invMessage = value; }
}
private System.Collections.Generic.List<byte> invMessageByte; // 解密后消息的ACSII码
public System.Collections.Generic.List<byte> InvMessageByte
{
get { return invMessageByte; }
set { invMessageByte = value; }
}
private string message; // 明文字符串
public string Message
{
get { return message; }
set { message = value; }
}
private string cryptograph; // 密文字符串
public string Cryptograph
{
get { return cryptograph; }
set { cryptograph = value; }
}
private List<byte> messageByte; // 明文的ASCII码
public System.Collections.Generic.List<byte> MessageByte
{
get { return messageByte; }
set { messageByte = value; }
}
private List<byte> cryptographByte; // 密文的ASCII码
public System.Collections.Generic.List<byte> CryptographByte
{
get { return cryptographByte; }
set { cryptographByte = value; }
}
public byte GfMultBy01(byte b)
{
return b;
}
public byte GfMultBy02(byte b)
{
if (b < 0x80)
return (byte)(int)(b << 1);
else
return (byte)((int)(b << 1) ^ (int)(0x1b));
}
public byte GfMultBy03(byte b)
{
return (byte)((int)GfMultBy02(b) ^ (int)b);
}
public byte GfMultBy09(byte b)
{
return (byte)((int)GfMultBy02(GfMultBy02(GfMultBy02(b))) ^ (int)b);
}
public byte GfMultBy0b(byte b)
{
return (byte)((int)GfMultBy02(GfMultBy02(GfMultBy02(b))) ^ (int)GfMultBy02(b) ^ (int)b);
}
public byte GfMultBy0d(byte b)
{
return (byte)((int)GfMultBy02(GfMultBy02(GfMultBy02(b))) ^ (int)GfMultBy02(GfMultBy02(b)) ^ (int)(b));
}
public byte GfMultBy0e(byte b)
{
return (byte)((int)GfMultBy02(GfMultBy02(GfMultBy02(b))) ^ (int)GfMultBy02(GfMultBy02(b)) ^ (int)GfMultBy02(b));
}
private byte[,] Rcon; // 生成扩展密钥的轮常量
private byte[,] Sbox; // S盒矩阵
private byte[,] iSbox; // S盒逆矩阵
public void InitRcon() // 初始化密钥轮常量
{
byte[,] r = new byte[11, 4] { {0x00, 0x00, 0x00, 0x00},
{0x01, 0x00, 0x00, 0x00},
{0x02, 0x00, 0x00, 0x00},
{0x04, 0x00, 0x00, 0x00},
{0x08, 0x00, 0x00, 0x00},
{0x10, 0x00, 0x00, 0x00},
{0x20, 0x00, 0x00, 0x00},
{0x40, 0x00, 0x00, 0x00},
{0x80, 0x00, 0x00, 0x00},
{0x1b, 0x00, 0x00, 0x00},
{0x36, 0x00, 0x00, 0x00} };
this.Rcon = r;
}
public void InitSboxAndiSbox() // 初始化S盒和逆S盒
{
byte[,] bs1 = new byte[16, 16]{
/* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
/*0*/ {0x63, 0x7c, 0x77, 0x7b, 0xf2, 0x6b, 0x6f, 0xc5, 0x30, 0x01, 0x67, 0x2b, 0xfe, 0xd7, 0xab, 0x76},
/*1*/ {0xca, 0x82, 0xc9, 0x7d, 0xfa, 0x59, 0x47, 0xf0, 0xad, 0xd4, 0xa2, 0xaf, 0x9c, 0xa4, 0x72, 0xc0},
/*2*/ {0xb7, 0xfd, 0x93, 0x26, 0x36, 0x3f, 0xf7, 0xcc, 0x34, 0xa5, 0xe5, 0xf1, 0x71, 0xd8, 0x31, 0x15},
/*3*/ {0x04, 0xc7, 0x23, 0xc3, 0x18, 0x96, 0x05, 0x9a, 0x07, 0x12, 0x80, 0xe2, 0xeb, 0x27, 0xb2, 0x75},
/*4*/ {0x09, 0x83, 0x2c, 0x1a, 0x1b, 0x6e, 0x5a, 0xa0, 0x52, 0x3b, 0xd6, 0xb3, 0x29, 0xe3, 0x2f, 0x84},
/*5*/ {0x53, 0xd1, 0x00, 0xed, 0x20, 0xfc, 0xb1, 0x5b, 0x6a, 0xcb, 0xbe, 0x39, 0x4a, 0x4c, 0x58, 0xcf},
/*6*/ {0xd0, 0xef, 0xaa, 0xfb, 0x43, 0x4d, 0x33, 0x85, 0x45, 0xf9, 0x02, 0x7f, 0x50, 0x3c, 0x9f, 0xa8},
/*7*/ {0x51, 0xa3, 0x40, 0x8f, 0x92, 0x9d, 0x38, 0xf5, 0xbc, 0xb6, 0xda, 0x21, 0x10, 0xff, 0xf3, 0xd2},
/*8*/ {0xcd, 0x0c, 0x13, 0xec, 0x5f, 0x97, 0x44, 0x17, 0xc4, 0xa7, 0x7e, 0x3d, 0x64, 0x5d, 0x19, 0x73},
/*9*/ {0x60, 0x81, 0x4f, 0xdc, 0x22, 0x2a, 0x90, 0x88, 0x46, 0xee, 0xb8, 0x14, 0xde, 0x5e, 0x0b, 0xdb},
/*a*/ {0xe0, 0x32, 0x3a, 0x0a, 0x49, 0x06, 0x24, 0x5c, 0xc2, 0xd3, 0xac, 0x62, 0x91, 0x95, 0xe4, 0x79},
/*b*/ {0xe7, 0xc8, 0x37, 0x6d, 0x8d, 0xd5, 0x4e, 0xa9, 0x6c, 0x56, 0xf4, 0xea, 0x65, 0x7a, 0xae, 0x08},
/*c*/ {0xba, 0x78, 0x25, 0x2e, 0x1c, 0xa6, 0xb4, 0xc6, 0xe8, 0xdd, 0x74, 0x1f, 0x4b, 0xbd, 0x8b, 0x8a},
/*d*/ {0x70, 0x3e, 0xb5, 0x66, 0x48, 0x03, 0xf6, 0x0e, 0x61, 0x35, 0x57, 0xb9, 0x86, 0xc1, 0x1d, 0x9e},
/*e*/ {0xe1, 0xf8, 0x98, 0x11, 0x69, 0xd9, 0x8e, 0x94, 0x9b, 0x1e, 0x87, 0xe9, 0xce, 0x55, 0x28, 0xdf},
/*f*/ {0x8c, 0xa1, 0x89, 0x0d, 0xbf, 0xe6, 0x42, 0x68, 0x41, 0x99, 0x2d, 0x0f, 0xb0, 0x54, 0xbb, 0x16} };
byte[,] bs2 = new byte[16, 16] {
/* 0 1 2 3 4 5 6 7 8 9 a b c d e f */
/*0*/ {0x52, 0x09, 0x6a, 0xd5, 0x30, 0x36, 0xa5, 0x38, 0xbf, 0x40, 0xa3, 0x9e, 0x81, 0xf3, 0xd7, 0xfb},
/*1*/ {0x7c, 0xe3, 0x39, 0x82, 0x9b, 0x2f, 0xff, 0x87, 0x34, 0x8e, 0x43, 0x44, 0xc4, 0xde, 0xe9, 0xcb},
/*2*/ {0x54, 0x7b, 0x94, 0x32, 0xa6, 0xc2, 0x23, 0x3d, 0xee, 0x4c, 0x95, 0x0b, 0x42, 0xfa, 0xc3, 0x4e},
/*3*/ {0x08, 0x2e, 0xa1, 0x66, 0x28, 0xd9, 0x24, 0xb2, 0x76, 0x5b, 0xa2, 0x49, 0x6d, 0x8b, 0xd1, 0x25},
/*4*/ {0x72, 0xf8, 0xf6, 0x64, 0x86, 0x68, 0x98, 0x16, 0xd4, 0xa4, 0x5c, 0xcc, 0x5d, 0x65, 0xb6, 0x92},
/*5*/ {0x6c, 0x70, 0x48, 0x50, 0xfd, 0xed, 0xb9, 0xda, 0x5e, 0x15, 0x46, 0x57, 0xa7, 0x8d, 0x9d, 0x84},
/*6*/ {0x90, 0xd8, 0xab, 0x00, 0x8c, 0xbc, 0xd3, 0x0a, 0xf7, 0xe4, 0x58, 0x05, 0xb8, 0xb3, 0x45, 0x06},
/*7*/ {0xd0, 0x2c, 0x1e, 0x8f, 0xca, 0x3f, 0x0f, 0x02, 0xc1, 0xaf, 0xbd, 0x03, 0x01, 0x13, 0x8a, 0x6b},
/*8*/ {0x3a, 0x91, 0x11, 0x41, 0x4f, 0x67, 0xdc, 0xea, 0x97, 0xf2, 0xcf, 0xce, 0xf0, 0xb4, 0xe6, 0x73},
/*9*/ {0x96, 0xac, 0x74, 0x22, 0xe7, 0xad, 0x35, 0x85, 0xe2, 0xf9, 0x37, 0xe8, 0x1c, 0x75, 0xdf, 0x6e},
/*a*/ {0x47, 0xf1, 0x1a, 0x71, 0x1d, 0x29, 0xc5, 0x89, 0x6f, 0xb7, 0x62, 0x0e, 0xaa, 0x18, 0xbe, 0x1b},
/*b*/ {0xfc, 0x56, 0x3e, 0x4b, 0xc6, 0xd2, 0x79, 0x20, 0x9a, 0xdb, 0xc0, 0xfe, 0x78, 0xcd, 0x5a, 0xf4},
/*c*/ {0x1f, 0xdd, 0xa8, 0x33, 0x88, 0x07, 0xc7, 0x31, 0xb1, 0x12, 0x10, 0x59, 0x27, 0x80, 0xec, 0x5f},
/*d*/ {0x60, 0x51, 0x7f, 0xa9, 0x19, 0xb5, 0x4a, 0x0d, 0x2d, 0xe5, 0x7a, 0x9f, 0x93, 0xc9, 0x9c, 0xef},
/*e*/ {0xa0, 0xe0, 0x3b, 0x4d, 0xae, 0x2a, 0xf5, 0xb0, 0xc8, 0xeb, 0xbb, 0x3c, 0x83, 0x53, 0x99, 0x61},
/*f*/ {0x17, 0x2b, 0x04, 0x7e, 0xba, 0x77, 0xd6, 0x26, 0xe1, 0x69, 0x14, 0x63, 0x55, 0x21, 0x0c, 0x7d} };
this.Sbox = bs1;
this.iSbox = bs2;
}
public BYTE4 SubWord(BYTE4 temp) // 用于扩展密钥的S盒变换函数
{
BYTE4 result = new BYTE4();
result.Byte4 = new byte[4];
result.Byte4[0] = Sbox[temp.Byte4[0] >> 4, temp.Byte4[0] & 0x0f];
result.Byte4[1] = Sbox[temp.Byte4[1] >> 4, temp.Byte4[1] & 0x0f];
result.Byte4[2] = Sbox[temp.Byte4[2] >> 4, temp.Byte4[2] & 0x0f];
result.Byte4[3] = Sbox[temp.Byte4[3] >> 4, temp.Byte4[3] & 0x0f];
return result;
}
public BYTE4 RotWord(BYTE4 temp) // 用于扩展密钥的以字节为单位的循环移位函数
{
BYTE4 result = new BYTE4();
result.Byte4 = new byte[4];
result.Byte4[0] = temp.Byte4[1];
result.Byte4[1] = temp.Byte4[2];
result.Byte4[2] = temp.Byte4[3];
result.Byte4[3] = temp.Byte4[0];
return result;
}
public int InitRoundTime() // 初始化加密轮数
{
if (this.Nb == 4 && this.Nk == 4) this.Nr = 10;
else if ((this.Nb == 6 || this.Nk == 6) && (this.Nb <= 6 && this.Nk <= 6)) this.Nr = 12;
else this.Nr = 14;
return this.Nr;
}
public void InitState() // 初始化加密矩阵
{
byte[] b;
List<byte> bList = new List<byte>();
ASCIIEncoding ascii = new ASCIIEncoding();
b = ascii.GetBytes(this.Message);
bList.AddRange(b);
int mod = bList.Count % (this.Nb * 4);
if (mod != 0)
{
byte bTemp = 0x00;
for (int i = 0; i < this.Nb * 4 - mod; i++) bList.Add(bTemp);
}
this.State = new List<byte[,]>();
int k = 0;
for (int blockNum = 0; blockNum < bList.Count /(this.Nb * 4); blockNum++)
{
byte[,] Sbyte = new byte[4, 4];
for (int i = 0; i < 4; i++)
{
for (int j = 0; j < 4; j++)
{
Sbyte[i, j] = bList[k++];
}
}
this.State.Add(Sbyte);
}
this.MessageByte = new List<byte>(); //生成明文ASCII码
foreach (byte[,] bs in this.State)
{
for (int i = 0; i < this.Nb; i++)
{
for (int j = 0; j < 4; j++)
{
this.MessageByte.Add(bs[i, j]);
}
}
}
}
public void InitExpentKey() // 初始化扩展密钥
{
byte[] keyB;
List<byte> bList = new List<byte>();
ASCIIEncoding ascii = new ASCIIEncoding();
keyB = ascii.GetBytes(this.KeySeed);
bList.AddRange(keyB);
int mod = bList.Count % (this.Nk * 4);
if (mod != 0)
{
byte bTemp = 0x00;
for (int i = 0; i < this.Nk * 4 - mod; i++) bList.Add(bTemp);
}
this.ExpandKey = new BYTE4[this.Nb * (this.Nr + 1)];
for (int row = 0; row < this.Nk; ++row)
{
this.ExpandKey[row] = new BYTE4();
this.ExpandKey[row].Byte4 = new byte[4];
this.ExpandKey[row].Byte4[0] = bList[4 * row];
this.ExpandKey[row].Byte4[1] = bList[4 * row + 1];
this.ExpandKey[row].Byte4[2] = bList[4 * row + 2];
this.ExpandKey[row].Byte4[3] = bList[4 * row + 3];
}
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