public string Decrypt(string message)
{
byte[] results;
UTF8Encoding utf8 = new UTF8Encoding();
MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider();
byte[] deskey = md5.ComputeHash(utf8.GetBytes(Passphrase));
TripleDESCryptoServiceProvider desalg = new TripleDESCryptoServiceProvider();
desalg.Key = deskey;
desalg.Mode = CipherMode.ECB;
desalg.Padding = PaddingMode.PKCS7;
byte[] decryptData = Convert.FromBase64String(message);
try
{
//To transform the utf binary code to md5 decrypt
ICryptoTransform decryptor = desalg.CreateDecryptor();
results = decryptor.TransformFinalBlock(decryptData, 0, decryptData.Length);
}
finally
{
desalg.Clear();
md5.Clear();
}
//TO convert decrypted binery code to string
return utf8.GetString(results);
}
internal string Decrypt(string value)
{
MD5CryptoServiceProvider hashProvider = null;
TripleDESCryptoServiceProvider provider = null;
try
{
hashProvider = new MD5CryptoServiceProvider();
var hashPassPhrase = hashProvider.ComputeHash(Encoding.UTF8.GetBytes(passPhrase));
provider = new TripleDESCryptoServiceProvider();
provider.Key = hashPassPhrase;
provider.Mode = CipherMode.ECB;
provider.Padding = PaddingMode.PKCS7;
var dataToEncrypt = Convert.FromBase64String(value);
var decryptor = provider.CreateDecryptor();
var results = decryptor.TransformFinalBlock(dataToEncrypt, 0, dataToEncrypt.Length);
return Encoding.UTF8.GetString(results);
}
finally
{
if (provider != null) provider.Clear();
if (hashProvider != null) hashProvider.Clear();
}
}
public string Encrypt(string message)
{
byte[] results;
UTF8Encoding utf8 = new UTF8Encoding();
//to create the object for UTF8Encoding class
//TO create the object for MD5CryptoServiceProvider
MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider();
byte[] deskey = md5.ComputeHash(utf8.GetBytes(Passphrase));
//to convert to binary passkey
//TO create the object for TripleDESCryptoServiceProvider
TripleDESCryptoServiceProvider desalg = new TripleDESCryptoServiceProvider();
desalg.Key = deskey;//to pass encode key
desalg.Mode = CipherMode.ECB;
desalg.Padding = PaddingMode.PKCS7;
byte[] encryptData = utf8.GetBytes(message);
//to convert the string to utf encoding binary
try
{
//To transform the utf binary code to md5 encrypt
ICryptoTransform encryptor = desalg.CreateEncryptor();
results = encryptor.TransformFinalBlock(encryptData, 0, encryptData.Length);
}
finally
{
//to clear the allocated memory
desalg.Clear();
md5.Clear();
}
//to convert to 64 bit string from converted md5 algorithm binary code
return Convert.ToBase64String(results);
}
public static string Encrypt(string toEncrypt, string key)
{
byte[] keyArray;
byte[] toEncryptArray = UTF8Encoding.UTF8.GetBytes(toEncrypt);
// Get the key from config file
System.Security.Cryptography.MD5CryptoServiceProvider hashmd5 = new System.Security.Cryptography.MD5CryptoServiceProvider();
keyArray = hashmd5.ComputeHash(UTF8Encoding.UTF8.GetBytes(key));
hashmd5.Clear();
System.Security.Cryptography.TripleDESCryptoServiceProvider tdes = new System.Security.Cryptography.TripleDESCryptoServiceProvider();
//set the secret key for the tripleDES algorithm
tdes.Key = keyArray;
//mode of operation. there are other 4 modes.
//We choose ECB(Electronic code Book)
tdes.Mode = System.Security.Cryptography.CipherMode.ECB;
//padding mode(if any extra byte added)
tdes.Padding = System.Security.Cryptography.PaddingMode.PKCS7;
System.Security.Cryptography.ICryptoTransform cTransform = tdes.CreateEncryptor();
//transform the specified region of bytes array to resultArray
byte[] resultArray =
cTransform.TransformFinalBlock(toEncryptArray, 0,
toEncryptArray.Length);
//Release resources held by TripleDes Encryptor
tdes.Clear();
//Return the encrypted data into unreadable string format
return(Convert.ToBase64String(resultArray, 0, resultArray.Length));
}
/// <summary>
/// Encrypt a string using dual encryption method. Return a encrypted cipher Text
/// </summary>
/// <param name="toEncrypt">string to be encrypted</param>
/// <param name="useHashing">use hashing? send to for extra secirity</param>
/// <returns></returns>
public static string Encrypt(string toEncrypt, bool useHashing)
{
byte[] keyArray;
byte[] toEncryptArray = UTF8Encoding.UTF8.GetBytes(toEncrypt);
System.Configuration.AppSettingsReader settingsReader = new AppSettingsReader();
// Get the key from config file
string key = SecurityKey;
//System.Windows.Forms.MessageBox.Show(key);
if (useHashing)
{
MD5CryptoServiceProvider hashmd5 = new MD5CryptoServiceProvider();
keyArray = hashmd5.ComputeHash(UTF8Encoding.UTF8.GetBytes(key));
hashmd5.Clear();
}
else
keyArray = UTF8Encoding.UTF8.GetBytes(key);
TripleDESCryptoServiceProvider tdes = new TripleDESCryptoServiceProvider();
tdes.Key = keyArray;
tdes.Mode = CipherMode.ECB;
tdes.Padding = PaddingMode.PKCS7;
ICryptoTransform cTransform = tdes.CreateEncryptor();
byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
tdes.Clear();
return Convert.ToBase64String(resultArray, 0, resultArray.Length);
}
public static string Decrypt(string cipherString)
{
try
{
byte[] keyArray;
//get the byte code of the string
byte[] toEncryptArray = Convert.FromBase64String(cipherString);
MD5CryptoServiceProvider hashmd5 = new MD5CryptoServiceProvider();
keyArray = hashmd5.ComputeHash(UTF8Encoding.UTF8.GetBytes(Key));
hashmd5.Clear();
TripleDESCryptoServiceProvider tdes = new TripleDESCryptoServiceProvider();
tdes.Key = keyArray;
tdes.Mode = CipherMode.ECB;
tdes.Padding = PaddingMode.PKCS7;
ICryptoTransform cTransform = tdes.CreateDecryptor();
byte[] resultArray = cTransform.TransformFinalBlock(
toEncryptArray, 0, toEncryptArray.Length);
tdes.Clear();
return UTF8Encoding.UTF8.GetString(resultArray);
}
catch (Exception ex)
{
return string.Empty;
}
}
public static string Encrypt(this string plainText, string encryptionKey)
{
var toEncryptArray = Encoding.ASCII.GetBytes(plainText);
byte[] encryptionKeyArray;
// get MD5 has for the key
using (var hashmd5 = new MD5CryptoServiceProvider())
{
encryptionKeyArray = hashmd5.ComputeHash(Encoding.ASCII.GetBytes(encryptionKey));
hashmd5.Clear();
}
byte[] resultArray;
// Set the secret key for the tripleDES algorithm
using (
var tdes = new TripleDESCryptoServiceProvider
{
Key = encryptionKeyArray,
Mode = CipherMode.ECB,
Padding = PaddingMode.PKCS7
})
{
// Transform the specified region of bytes array to resultArray
var cTransform = tdes.CreateEncryptor();
resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
tdes.Clear();
}
// Return the encrypted data into unreadable string format
return Convert.ToBase64String(resultArray);
}
public static string md5Hash(this Bitmap bitmap)
{
try
{
if (bitmap.isNull())
return null;
//based on code snippets from http://dotnet.itags.org/dotnet-c-sharp/85838/
using (var strm = new MemoryStream())
{
var image = new Bitmap(bitmap);
bitmap.Save(strm, System.Drawing.Imaging.ImageFormat.Bmp);
strm.Seek(0, 0);
byte[] bytes = strm.ToArray();
var md5 = new MD5CryptoServiceProvider();
byte[] hashed = md5.TransformFinalBlock(bytes, 0, bytes.Length);
string hash = BitConverter.ToString(hashed).ToLower();
md5.Clear();
image.Dispose();
return hash;
}
}
catch (Exception ex)
{
ex.log("in bitmap.md5Hash");
return "";
}
}
public static string MD5(this string value)
{
//MD5ハッシュ値を計算する文字列
string s = value;
//文字列をbyte型配列に変換する
byte[] data = System.Text.Encoding.UTF8.GetBytes(s);
//MD5CryptoServiceProviderオブジェクトを作成
System.Security.Cryptography.MD5CryptoServiceProvider md5 =
new System.Security.Cryptography.MD5CryptoServiceProvider();
//または、次のようにもできる
//System.Security.Cryptography.MD5 md5 =
// System.Security.Cryptography.MD5.Create();
//ハッシュ値を計算する
byte[] bs = md5.ComputeHash(data);
//リソースを解放する
md5.Clear();
//byte型配列を16進数の文字列に変換
System.Text.StringBuilder result = new System.Text.StringBuilder();
foreach (byte b in bs)
{
result.Append(b.ToString("x2"));
}
//ここの部分は次のようにもできる
//string result = BitConverter.ToString(bs).ToLower().Replace("-","");
//結果を表示
return(result.ToString());
}
/// <summary>
/// MD5加密 返回纯字节
/// </summary>
/// <param name="k"></param>
/// <returns></returns>
public static byte[] MD5Bytes(string sourceString)
{
MD5 md5 = new MD5CryptoServiceProvider();
byte[] keyBytes = md5.ComputeHash(Encoding.UTF8.GetBytes(sourceString));
md5.Clear();
return keyBytes;
}
private static string generateKey(string str)
{
if (null == str)
{
str = "defaultpassword";
}
else if (str.Length < 1)
{
str = "emptypassword";
}
System.Security.Cryptography.MD5 md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();
byte[] bytes = System.Text.Encoding.GetEncoding(ENCODE).GetBytes(str);
bytes = md5.ComputeHash(bytes);
md5.Clear();
String strret = Convert.ToBase64String(bytes);
while (strret.Length < 16)
{
strret += "%";
}
if (strret.Length > 16)
{
int nbegin = (strret.Length - 16) / 2;
strret = strret.Substring(nbegin, 16);
}
return(strret);
}
public static string Decrypt(this string cipherText, string encryptionKey)
{
// if(cipherText.Contains(" "))
cipherText = cipherText.Replace(" ", "+");
byte[] resultArray;
var toEncryptArray = Convert.FromBase64String(cipherText);
byte[] keyArray;
// If hashing was used get the hash code with regards to your key
using (var hashmd5 = new MD5CryptoServiceProvider())
{
keyArray = hashmd5.ComputeHash(Encoding.ASCII.GetBytes(encryptionKey));
hashmd5.Clear();
}
// Set the secret key for the tripleDES algorithm
using (
var tdes = new TripleDESCryptoServiceProvider
{
Key = keyArray,
Mode = CipherMode.ECB,
Padding = PaddingMode.PKCS7
})
{
var cTransform = tdes.CreateDecryptor();
resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
tdes.Clear();
}
// Return the Clear decrypted TEXT
return Encoding.ASCII.GetString(resultArray);
}
public string Encrypt(string toEncrypt, bool useHashing)
{
byte[] keyArray;
byte[] toEncryptArray = Encoding.UTF8.GetBytes(toEncrypt);
if (useHashing)
{
MD5CryptoServiceProvider hashmd5 = new MD5CryptoServiceProvider();
keyArray = hashmd5.ComputeHash(Encoding.UTF8.GetBytes(SecurityKey));
hashmd5.Clear();
}
else
keyArray = Encoding.UTF8.GetBytes(SecurityKey);
var tdes = new TripleDESCryptoServiceProvider
{
Key = keyArray,
Mode = CipherMode.ECB,
Padding = PaddingMode.PKCS7
};
ICryptoTransform cTransform = tdes.CreateEncryptor();
byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
tdes.Clear();
return Convert.ToBase64String(resultArray, 0, resultArray.Length);
}
static byte[] CreateKeyDigest(String password, byte[] docIdData)
{
Check16Bytes(docIdData, "docId");
int nChars = Math.Min(password.Length, 16);
byte[] passwordData = new byte[nChars * 2];
for (int i = 0; i < nChars; i++)
{
char ch = password[i];
passwordData[i * 2 + 0] = (byte)((ch << 0) & 0xFF);
passwordData[i * 2 + 1] = (byte)((ch << 8) & 0xFF);
}
byte[] kd;
MD5 md5 = new MD5CryptoServiceProvider();
byte[] passwordHash = md5.ComputeHash(passwordData);
md5.Clear();
md5.Initialize();
byte[] data=new byte[passwordHash.Length*16 + docIdData.Length*16];
int offset=0;
for (int i = 0; i < 16; i++)
{
Array.Copy(passwordHash, 0, data, offset, PASSWORD_HASH_NUMBER_OF_BYTES_USED);
offset+=passwordHash.Length;
Array.Copy(docIdData,0,data,offset,docIdData.Length);
offset += docIdData.Length;
}
kd = md5.ComputeHash(data);
byte[] result = new byte[KEY_DIGEST_LENGTH];
Array.Copy(kd, 0, result, 0, KEY_DIGEST_LENGTH);
return result;
}
public static string Decrypt(string cypherString)
{
byte[] keyArray;
byte[] toDecryptArray = StringToByteArray(cypherString);
MD5CryptoServiceProvider hashmd = new MD5CryptoServiceProvider();
keyArray = hashmd.ComputeHash(UTF8Encoding.UTF8.GetBytes(ENCRYPTION_KEY));
hashmd.Clear();
TripleDESCryptoServiceProvider tDes = new TripleDESCryptoServiceProvider();
tDes.Key = keyArray;
tDes.Mode = CipherMode.ECB;
tDes.Padding = PaddingMode.PKCS7;
ICryptoTransform cTransform = tDes.CreateDecryptor();
try
{
byte[] resultArray = cTransform.TransformFinalBlock(toDecryptArray, 0, toDecryptArray.Length);
tDes.Clear();
return UTF8Encoding.UTF8.GetString(resultArray, 0, resultArray.Length);
}
catch (Exception ex)
{
throw ex;
}
}
private const string secureKey = "QaZ1wSx2Edc3RfV4"; //Important Security Key
#endregion Fields
#region Methods
public string Decrypt(string encryptedString)
{
try
{
byte[] extractBytes = Convert.FromBase64String(encryptedString); //getting the string to decrypt
MD5CryptoServiceProvider descObj = new MD5CryptoServiceProvider(); //creating an instance of MD5CryptoServiceProvider
byte[] hashCompute = descObj.ComputeHash(UTF8Encoding.UTF8.GetBytes(secureKey));
descObj.Clear(); //releasing resourse
TripleDESCryptoServiceProvider DESCD = new TripleDESCryptoServiceProvider();
DESCD.Key = hashCompute; //secure Key is being set
DESCD.Mode = CipherMode.ECB; //Electronic Code Book Mode
DESCD.Padding = PaddingMode.PKCS7; //Padding
ICryptoTransform ICTransform = DESCD.CreateDecryptor();
byte[] finalResult = ICTransform.TransformFinalBlock( //Transforming byte array to finalResult
extractBytes, 0, extractBytes.Length);
DESCD.Clear();
return UTF8Encoding.UTF8.GetString(finalResult); //Return Decrypted Text
}
catch (Exception ex)
{
return ex.ToString();
}
}
public string Encrypt(string text)
{
try
{
byte[] getBytes = UTF8Encoding.UTF8.GetBytes(text); //getting the string to encrypt
System.Security.Cryptography.MD5CryptoServiceProvider cryptObj = new System.Security.Cryptography.MD5CryptoServiceProvider();
byte[] computeHashArray = cryptObj.ComputeHash(UTF8Encoding.UTF8.GetBytes(secureKey));
cryptObj.Clear(); //Releasing the object
TripleDESCryptoServiceProvider tripleDESC = new TripleDESCryptoServiceProvider(); //creating an object of TRIPLE DES service provider
tripleDESC.Key = computeHashArray; //securekey is being set
tripleDESC.Mode = CipherMode.ECB; //Electronic Code Book mode is being set
tripleDESC.Padding = PaddingMode.PKCS7; //Padding
ICryptoTransform ICT = tripleDESC.CreateEncryptor();
byte[] transform = ICT.TransformFinalBlock(getBytes, 0,getBytes.Length); //Byte Array to Transform array
tripleDESC.Clear(); //release object
return Convert.ToBase64String(transform, 0, transform.Length); //return encrypted string
}
catch (Exception ex)
{
return ex.ToString();
}
}
public static string Encrypt(string text, bool useHash)
{
byte[] keyArray;
byte[] toEcryptArray = UTF8Encoding.UTF8.GetBytes(text);
System.Configuration.AppSettingsReader setingReader = new System.Configuration.AppSettingsReader();
string key = (string)setingReader.GetValue("SecurityKey", typeof(string));
if (useHash)
{
MD5CryptoServiceProvider hashMd5 = new MD5CryptoServiceProvider();
keyArray = hashMd5.ComputeHash(UTF8Encoding.UTF8.GetBytes(key));
hashMd5.Clear();
}
else
{
keyArray = UTF8Encoding.UTF8.GetBytes(key);
}
TripleDESCryptoServiceProvider crypto = new TripleDESCryptoServiceProvider();
crypto.Key = keyArray;
crypto.Mode = CipherMode.ECB;
crypto.Padding = PaddingMode.PKCS7;
ICryptoTransform transforme = crypto.CreateEncryptor();
byte[] result = transforme.TransformFinalBlock(toEcryptArray, 0, toEcryptArray.Length);
crypto.Clear();
return Convert.ToBase64String(result, 0, result.Length);
}
/// <summary>
/// Returnes the string as MD5 hashing
/// </summary>
/// <param name="datastr"></param>
/// <returns></returns>
public static string EncryptString(string datastr)
{
HashAlgorithm mhash = new MD5CryptoServiceProvider();
string res = string.Empty; // the returning result
// Convert the original string to array of Bytes
byte[] bytValue = Encoding.UTF8.GetBytes(datastr);
// Compute the Hash, returns an array of Bytes
byte[] bytHash = mhash.ComputeHash(bytValue);
mhash.Clear();
// convert the byte data to hex string values
for (int i = 0; i < bytHash.Length; i++)
{
if (bytHash[i] < 16)
{
res += "0" + bytHash[i].ToString("x");
}
else
{
res += bytHash[i].ToString("x");
}
}
return res;
}
/// <summary>
/// EncryptString
/// </summary>
/// <param name="message"></param>
/// <param name="passphrase"></param>
/// <returns></returns>
public static string EncryptString(string message)
{
byte[] results;
var utf8 = new System.Text.UTF8Encoding();
var hashProvider = new MD5CryptoServiceProvider();
var tdesKey = hashProvider.ComputeHash(utf8.GetBytes(Pass));
var tdesAlgorithm = new TripleDESCryptoServiceProvider
{
Key = tdesKey,
Mode = CipherMode.ECB,
Padding = PaddingMode.PKCS7
};
var dataToEncrypt = utf8.GetBytes(message);
try
{
var encryptor = tdesAlgorithm.CreateEncryptor();
results = encryptor.TransformFinalBlock(dataToEncrypt, 0, dataToEncrypt.Length);
}
finally
{
tdesAlgorithm.Clear();
hashProvider.Clear();
}
return Convert.ToBase64String(results);
}
public static string maHoa(string strMaHoa)
{
byte[] arrKey;
byte[] arrMahoa = UTF8Encoding.UTF8.GetBytes(strMaHoa);
System.Configuration.AppSettingsReader settingsReader = new AppSettingsReader();
//Lấy giá trị key từ file Web.config
string keyConfig = (string)settingsReader.GetValue("keyMD5", typeof(String));
MD5CryptoServiceProvider serviceMD5 = new MD5CryptoServiceProvider();
arrKey = serviceMD5.ComputeHash(UTF8Encoding.UTF8.GetBytes(keyConfig));
serviceMD5.Clear();//Giải phóng tài nguyên
TripleDESCryptoServiceProvider tdsp = new TripleDESCryptoServiceProvider();
//Thiết lập 1 key cho thuật toán mã hóa
tdsp.Key = arrKey;
//Chọn phương thức mã hóa. Ở đây chúng ta chọn ECB(Electronic code Book ) [1]
tdsp.Mode = CipherMode.ECB;
//Thêm phương thức mã hóa IS010126 (random chuỗi kết quả) [2]
tdsp.Padding = PaddingMode.ISO10126;
ICryptoTransform cTransform = tdsp.CreateEncryptor();
byte[] arrKQ = cTransform.TransformFinalBlock(arrMahoa, 0, arrMahoa.Length);
tdsp.Clear(); //Giải phóng tài nguyên của TripleDES Encryptor
//Kết quả mã hóa được trả về 1 giá trị kiểu String
return Convert.ToBase64String(arrKQ, 0, arrKQ.Length);
}
public string DecryptKey(string clave)
{
string key = "**H0H**D*L";
byte[] keyArray;
//convierte el texto en una secuencia de bytes
byte[] Array_a_Descifrar =
Convert.FromBase64String(clave);
MD5CryptoServiceProvider hashmd5 =
new MD5CryptoServiceProvider();
keyArray = hashmd5.ComputeHash(
UTF8Encoding.UTF8.GetBytes(key));
hashmd5.Clear();
TripleDESCryptoServiceProvider tdes =
new TripleDESCryptoServiceProvider();
tdes.Key = keyArray;
tdes.Mode = CipherMode.ECB;
tdes.Padding = PaddingMode.PKCS7;
ICryptoTransform cTransform =
tdes.CreateDecryptor();
byte[] resultArray =
cTransform.TransformFinalBlock(Array_a_Descifrar,
0, Array_a_Descifrar.Length);
tdes.Clear();
return UTF8Encoding.UTF8.GetString(resultArray);
}
/// <summary>
/// Returns a decrypted string by a key
/// </summary>
/// <remarks>
/// If something is broken this method returns an empty string
/// </remarks>
/// <param name="text">Text to decrypt</param>
/// <param name="key">Key to decrypt</param>
/// <param name="encoding" >Encoding to get bytes. UTF8 by default.</ param >
/// <returns></returns>
public static String Decrypt(String textoEncriptado, String clave, Encoding encoding = null)
{
try
{
if (String.IsNullOrEmpty(textoEncriptado) || String.IsNullOrEmpty(clave))
return String.Empty;
byte[] keyBytes;
byte[] encryptedBytes = Convert.FromBase64String(textoEncriptado);
//Create a MD5 object to obtain a hash
MD5CryptoServiceProvider hashmd5 = new MD5CryptoServiceProvider();
keyBytes = hashmd5.ComputeHash(encoding.GetBytes(clave));
hashmd5.Clear();
//Create a Triple DES object to decrypt
TripleDESCryptoServiceProvider tdes = new TripleDESCryptoServiceProvider();
tdes.Key = keyBytes;
tdes.Mode = CipherMode.ECB;
tdes.Padding = PaddingMode.PKCS7;
ICryptoTransform cTransform = tdes.CreateDecryptor();
byte[] resultArray = cTransform.TransformFinalBlock(encryptedBytes, 0, encryptedBytes.Length);
tdes.Clear();
return encoding.GetString(resultArray);
}
catch (Exception)
{
return String.Empty;
}
}
static public string CalcETag(string str)
{
System.Security.Cryptography.MD5CryptoServiceProvider md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();
byte[] hash = md5.ComputeHash(System.Text.Encoding.Unicode.GetBytes(str));
md5.Clear();
return(Convert.ToBase64String(hash));
}
private static byte[] makeMD5(byte[] key)
{
MD5CryptoServiceProvider MD5Provider = new MD5CryptoServiceProvider();
byte[] keyhash = MD5Provider.ComputeHash(key);
MD5Provider.Clear();
return keyhash;
}
/// <summary>
/// 计算MD5
/// </summary>
/// <param name="s"></param>
/// <returns></returns>
public static string GetMD5(String s)
{
if (string.IsNullOrEmpty(s))
{
return("");
}
//获取加密服务
System.Security.Cryptography.MD5 md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();
//获取要加密的字段，并转化为Byte[]数组
byte[] bytes = System.Text.Encoding.UTF8.GetBytes(s);
//加密Byte[]数组
bytes = md5.ComputeHash(bytes);
md5.Clear();
StringBuilder strReturn = new StringBuilder();
for (int i = 0; i < bytes.Length; i++)
{
strReturn.Append(Convert.ToString(bytes[i], 16).PadLeft(2, '0'));
}
return(strReturn.ToString().PadLeft(32, '0'));
}
//Giai ma HashMD5 và TripleDES
public string Decrypt(string cipherString, bool i_blUseHashing)
{
byte[] v_arrKey;
byte[] v_arrEncrypt = new byte[(int)cipherString.Length];
try
{
v_arrEncrypt = Convert.FromBase64String(cipherString);
}
catch (Exception v_ex)
{
throw v_ex;
}
string v_strKey = "fatherofbill";
if (i_blUseHashing)
{
MD5CryptoServiceProvider hashmd5 = new MD5CryptoServiceProvider();
v_arrKey = hashmd5.ComputeHash(UTF8Encoding.UTF8.GetBytes(v_strKey));
hashmd5.Clear();
}
else
{
v_arrKey = UTF8Encoding.UTF8.GetBytes(v_strKey);
}
TripleDESCryptoServiceProvider tdes = new TripleDESCryptoServiceProvider();
tdes.Key = v_arrKey;
tdes.Mode = CipherMode.ECB;
tdes.Padding = PaddingMode.PKCS7;
ICryptoTransform cTransform = tdes.CreateDecryptor();
byte[] resultArray = cTransform.TransformFinalBlock(v_arrEncrypt, 0, v_arrEncrypt.Length);
tdes.Clear();
return UTF8Encoding.UTF8.GetString(resultArray);
}
/// <summary>
/// DeCrypt a string using dual encryption method. Return a DeCrypted clear string
/// </summary>
/// <param name="cipherString">encrypted string</param>
/// <param name="useHashing">Did you use hashing to encrypt this data? pass true is yes</param>
/// <returns></returns>
public static string Decrypt(string cipherString)
{
byte[] keyArray;
bool useHashing = true;
byte[] toEncryptArray = Convert.FromBase64String(cipherString);
string key = "ImgONE";
if (useHashing)
{
MD5CryptoServiceProvider hashmd5 = new MD5CryptoServiceProvider();
keyArray = hashmd5.ComputeHash(UTF8Encoding.UTF8.GetBytes(key));
hashmd5.Clear();
}
else
keyArray = UTF8Encoding.UTF8.GetBytes(key);
TripleDESCryptoServiceProvider tdes = new TripleDESCryptoServiceProvider();
tdes.Key = keyArray;
tdes.Mode = CipherMode.ECB;
tdes.Padding = PaddingMode.PKCS7;
ICryptoTransform cTransform = tdes.CreateDecryptor();
byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
tdes.Clear();
return UTF8Encoding.UTF8.GetString(resultArray);
}
public static string DecryptString(string message)
{
byte[] results;
// Step 1. We hash the customPassPhrase using MD5
// We use the MD5 hash generator as the result is a 128 bit byte array
// which is a valid length for the TripleDES encoder we use below
var hashProvider = new MD5CryptoServiceProvider();
byte[] TDESKey = hashProvider.ComputeHash(Encoding.UTF8.GetBytes(customPassPhrase));
// Step 3. Setup the decoder
var tripleDESAlgorithm = new TripleDESCryptoServiceProvider() { Mode = CipherMode.ECB, Padding = PaddingMode.PKCS7 };
tripleDESAlgorithm.Key = TDESKey;
// Step 4. Convert the input string to a byte[]
byte[] dataToDecrypt = Convert.FromBase64String(message);
// Step 5. Attempt to decrypt the string
try
{
ICryptoTransform decryptor = tripleDESAlgorithm.CreateDecryptor();
results = decryptor.TransformFinalBlock(dataToDecrypt, 0, dataToDecrypt.Length);
decryptor.Dispose();
}
finally
{
// Clear the TripleDes and Hashprovider services of any sensitive information
tripleDESAlgorithm.Clear();
hashProvider.Clear();
}
// Step 6. Return the decrypted string in UTF8 format
return Encoding.UTF8.GetString(results);
}
internal static string DesEncriptar(string clave)
{
String sPass = String.Empty;
try
{
string key = "ABCDEFG54669525PQRSTUVWXYZabcdef852846opqrstuvwxyz";
byte[] keyArray;
byte[] Array_a_Descifrar = Convert.FromBase64String(clave);
MD5CryptoServiceProvider hashmd5 = new MD5CryptoServiceProvider();
keyArray = hashmd5.ComputeHash(
UTF8Encoding.UTF8.GetBytes(key));
hashmd5.Clear();
TripleDESCryptoServiceProvider tdes = new TripleDESCryptoServiceProvider();
tdes.Key = keyArray;
tdes.Mode = CipherMode.ECB;
tdes.Padding = PaddingMode.PKCS7;
ICryptoTransform cTransform = tdes.CreateDecryptor();
byte[] resultArray = cTransform.TransformFinalBlock(Array_a_Descifrar, 0, Array_a_Descifrar.Length);
tdes.Clear();
sPass = UTF8Encoding.UTF8.GetString(resultArray);
}
catch (Exception) {}
return sPass;
}
public static string Encrypt(string ToEncrypt, bool useHasing)
{
byte[] keyArray;
byte[] toEncryptArray = UTF8Encoding.UTF8.GetBytes(ToEncrypt);
string Key = "malkit";
if (useHasing)
{
MD5CryptoServiceProvider hashmd5 = new MD5CryptoServiceProvider();
keyArray = hashmd5.ComputeHash(UTF8Encoding.UTF8.GetBytes(Key));
hashmd5.Clear();
}
else
{
keyArray = UTF8Encoding.UTF8.GetBytes(Key);
}
TripleDESCryptoServiceProvider tDes = new TripleDESCryptoServiceProvider();
tDes.Key = keyArray;
tDes.Mode = CipherMode.ECB;
tDes.Padding = PaddingMode.PKCS7;
ICryptoTransform cTransform = tDes.CreateEncryptor();
byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
tDes.Clear();
return Convert.ToBase64String(resultArray, 0, resultArray.Length);
}
public static string EncryptData(string Message)
{
byte[] Results;
string passphrase = ReadCert();
System.Text.UTF8Encoding UTF8 = new System.Text.UTF8Encoding();
MD5CryptoServiceProvider HashProvider = new MD5CryptoServiceProvider();
byte[] TDESKey = HashProvider.ComputeHash(UTF8.GetBytes(passphrase));
TripleDESCryptoServiceProvider TDESAlgorithm = new TripleDESCryptoServiceProvider();
TDESAlgorithm.Key = TDESKey;
TDESAlgorithm.Mode = CipherMode.ECB;
TDESAlgorithm.Padding = PaddingMode.PKCS7;
byte[] DataToEncrypt = UTF8.GetBytes(Message);
try
{
ICryptoTransform Encryptor = TDESAlgorithm.CreateEncryptor();
Results = Encryptor.TransformFinalBlock(DataToEncrypt, 0, DataToEncrypt.Length);
}
finally
{
TDESAlgorithm.Clear();
HashProvider.Clear();
}
return Convert.ToBase64String(Results);
}
/// <summary>
/// Decrypts a cipher sting
/// </summary>
/// <param name="cipherString">String to decrypt</param>
/// <returns>Decrypted string</returns>
public string DecryptString(string cipherString)
{
try
{
byte[] keyArray;
byte[] toEncryptArray = Convert.FromBase64String(cipherString);
System.Configuration.AppSettingsReader settingsReader = new AppSettingsReader();
string key = (string)settingsReader.GetValue("SecurityKey", typeof(String));
MD5CryptoServiceProvider hashmd5 = new MD5CryptoServiceProvider();
keyArray = hashmd5.ComputeHash(UTF8Encoding.UTF8.GetBytes(key));
hashmd5.Clear();
TripleDESCryptoServiceProvider tdes = new TripleDESCryptoServiceProvider();
tdes.Key = keyArray;
tdes.Mode = CipherMode.ECB;
tdes.Padding = PaddingMode.PKCS7;
ICryptoTransform cTransform = tdes.CreateDecryptor();
byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
tdes.Clear();
return UTF8Encoding.UTF8.GetString(resultArray);
}
catch (Exception e)
{
Console.WriteLine("DecryptString exception : " + e.ToString());
return null;
}
}
public static string Decrypt(string cypherString, bool useHasing)
{
byte[] keyArray;
byte[] toDecryptArray = Convert.FromBase64String(cypherString);
string key = "uzma";
if (useHasing)
{
MD5CryptoServiceProvider hashmd = new MD5CryptoServiceProvider();
keyArray = hashmd.ComputeHash(UTF8Encoding.UTF8.GetBytes(key));
hashmd.Clear();
}
else
{
keyArray = UTF8Encoding.UTF8.GetBytes(key);
}
TripleDESCryptoServiceProvider tDes = new TripleDESCryptoServiceProvider();
tDes.Key = keyArray;
tDes.Mode = CipherMode.ECB;
tDes.Padding = PaddingMode.PKCS7;
ICryptoTransform cTransform = tDes.CreateDecryptor();
try
{
byte[] resultArray = cTransform.TransformFinalBlock(toDecryptArray, 0, toDecryptArray.Length);
tDes.Clear();
return UTF8Encoding.UTF8.GetString(resultArray, 0, resultArray.Length);
}
catch (Exception ex)
{
throw ex;
}
}
/// <summary>
/// DeCrypt a string using dual encryption method. Return a DeCrypted clear string
/// </summary>
/// <param name="cipherString">encrypted string</param>
/// <param name="useHashing">Did you use hashing to encrypt this data? pass true is yes</param>
/// <returns></returns>
public static string Decrypt(string cipherString, bool useHashing)
{
byte[] keyArray;
byte[] toEncryptArray = Convert.FromBase64String(cipherString);
System.Configuration.AppSettingsReader settingsReader = new AppSettingsReader();
//Get your key from config file to open the lock!
string key = SecurityKey;
if (useHashing)
{
MD5CryptoServiceProvider hashmd5 = new MD5CryptoServiceProvider();
keyArray = hashmd5.ComputeHash(UTF8Encoding.UTF8.GetBytes(key));
hashmd5.Clear();
}
else
keyArray = UTF8Encoding.UTF8.GetBytes(key);
TripleDESCryptoServiceProvider tdes = new TripleDESCryptoServiceProvider();
tdes.Key = keyArray;
tdes.Mode = CipherMode.ECB;
tdes.Padding = PaddingMode.PKCS7;
ICryptoTransform cTransform = tdes.CreateDecryptor();
byte[] resultArray = cTransform.TransformFinalBlock(toEncryptArray, 0, toEncryptArray.Length);
tdes.Clear();
return UTF8Encoding.UTF8.GetString(resultArray);
}
public static string md5str(string s)
{
byte[] data = System.Text.Encoding.UTF8.GetBytes(s);
System.Security.Cryptography.MD5CryptoServiceProvider md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();
byte[] bs = md5.ComputeHash(data);
md5.Clear();
return(BitConverter.ToString(bs).ToLower().Replace("-", ""));
}
// 生成更新包列表文件
void GenPatcherLst()
{
string sPatchLstPath = m_sPatcherDir + "/" + ms_sPatchLstFileName;
string[] files = Directory.GetFiles(m_sPatcherDir, "*" + PackageScatteredApp.ms_sPatcherFileType, SearchOption.TopDirectoryOnly);
List <string> lstPatcher = new List <string>();
for (int i = 0; i < files.Length; i++)
{
string sNewFileName = files[i].Substring(0, files[i].LastIndexOf(".")).Substring(m_sPatcherDir.Length + 1);
Debug.Log(files[i] + " <=> " + sNewFileName);
string[] sNewVer = sNewFileName.Split('_');
if (sNewVer.Length != 3)
{
continue;
}
int nPos = lstPatcher.Count;
for (int j = lstPatcher.Count - 1; j >= 0; j--)
{
string sFileName = lstPatcher[j];
string[] sVer = sFileName.Split('_');
if (sVer.Length != 3)
{
continue;
}
if (-1 == CompareVer(sNewVer[1], sVer[1]) || (0 == CompareVer(sNewVer[1], sVer[1]) && 1 == CompareVer(sNewVer[2], sVer[2])))
{
nPos = j;
}
}
lstPatcher.Insert(nPos, sNewFileName);
}
// 生成更新包列表文件
JsonData jd = new JsonData();
jd.SetJsonType(JsonType.Array);
System.Security.Cryptography.MD5CryptoServiceProvider md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();
byte[] bt;
string sMd5 = "";
for (int i = 0; i < lstPatcher.Count; i++)
{
Debug.Log("GenPatcherLst: " + lstPatcher[i]);
bt = File.ReadAllBytes(m_sPatcherDir + "/" + lstPatcher[i] + PackageScatteredApp.ms_sPatcherFileType);
sMd5 = BitConverter.ToString(md5.ComputeHash(bt));
JsonData jdd = new JsonData();
jdd.SetJsonType(JsonType.Object);
jdd["file"] = lstPatcher[i] + PackageScatteredApp.ms_sPatcherFileType;
jdd["md5"] = sMd5;
jdd["size"] = (bt.Length / 1024.0f / 1024.0f).ToString();
jd.Add(jdd);
}
md5.Clear();
Util.writeJson(jd, sPatchLstPath);
}
/// <summary>
/// バイト列をMD5ハッシュ化します。
/// </summary>
/// <returns><c>true</c> if hash byteData; otherwise, <c>false</c>.</returns>
/// <param name="byteData">Byte data.</param>
public static byte[] Hash(byte[] byteData)
{
// MD5CryptoServiceProviderオブジェクトを作成
System.Security.Cryptography.MD5CryptoServiceProvider md5 =
new System.Security.Cryptography.MD5CryptoServiceProvider();
// ハッシュ値を計算する
byte[] hashCode = md5.ComputeHash(byteData);
// 閉じる
md5.Clear();
return(hashCode);
}
/// <summary>
/// 二进制转成Md5
/// </summary>
/// <param name="bytes"></param>
/// <returns></returns>
public static string GetMD5(this byte[] bytes)
{
System.Security.Cryptography.MD5CryptoServiceProvider md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();
byte[] bytHash = md5.ComputeHash(bytes);
md5.Clear();
string sTemp = "";
for (int i = 0; i < bytHash.Length; i++)
{
sTemp += bytHash[i].ToString("X").PadLeft(2, '0');
}
return(sTemp.ToLower());
}
public static string MD5(byte[] content)
{
System.Security.Cryptography.MD5 md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();
byte[] hash = md5.ComputeHash(content);
md5.Clear();
System.Text.StringBuilder sb = new System.Text.StringBuilder();
for (int i = 0; i < hash.Length; ++i)
{
sb.Append(hash[i].ToString("X2"));
}
return(sb.ToString());
}
public static string HashString(string Value)
{
System.Security.Cryptography.MD5CryptoServiceProvider x = new System.Security.Cryptography.MD5CryptoServiceProvider();
byte[] data = System.Text.Encoding.ASCII.GetBytes(Value);
data = x.ComputeHash(data);
string ret = "";
for (int i = 0; i < data.Length; i++)
{
ret += data[i].ToString("x2").ToLower();
}
x.Clear();
return(ret);
}
public static String Md5(string s)
{
System.Security.Cryptography.MD5 md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();
byte[] bytes = System.Text.Encoding.UTF8.GetBytes(s);
bytes = md5.ComputeHash(bytes);
md5.Clear();
string ret = "";
for (int i = 0; i < bytes.Length; i++)
{
ret += Convert.ToString(bytes[i], 16).PadLeft(2, '0');
}
return(ret.PadLeft(32, '0'));
}
public static string md5_32(string s)
{
System.Security.Cryptography.MD5 mD = new System.Security.Cryptography.MD5CryptoServiceProvider();
byte[] array = System.Text.Encoding.UTF8.GetBytes(s);
array = mD.ComputeHash(array);
mD.Clear();
string text = "";
for (int i = 0; i < array.Length; i++)
{
text += System.Convert.ToString(array[i], 16).PadLeft(2, '0');
}
return(text.PadLeft(32, '0'));
}
public static string Md5(Stream stream)
{
stream.Seek(0, SeekOrigin.Begin);
var md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();
byte[] hash_byte = md5.ComputeHash(stream);
var md5str = System.BitConverter.ToString(hash_byte);
md5str = md5str.Replace("-", "");
md5.Clear();
return(md5str);
}
public static string GetMD5(this Stream sDataIn)
{
System.Security.Cryptography.MD5CryptoServiceProvider md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();
md5.Initialize();
byte[] bytes = md5.ComputeHash(sDataIn);
md5.Clear();
StringBuilder sb = new StringBuilder();
foreach (byte b in bytes)
{
sb.Append(b.ToString("x2"));
}
return(sb.ToString());
}
public static string Md5(string data)
{
var md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();
var byteValue = System.Text.Encoding.UTF8.GetBytes(data);
var byteHash = md5.ComputeHash(byteValue);
md5.Clear();
var result = "";
for (var i = 0; i < byteHash.Length; i++)
{
result += byteHash[i].ToString("X").PadLeft(2, '0');
}
return(result.ToLower());
}
private static string EncryptByMD5(string md5)
{
System.Security.Cryptography.MD5CryptoServiceProvider md = new System.Security.Cryptography.MD5CryptoServiceProvider();
byte[] value, hash;
value = System.Text.Encoding.UTF8.GetBytes(md5);
hash = md.ComputeHash(value);
md.Clear();
string temp = "";
for (int i = 0, len = hash.Length; i < len; i++)
{
temp += hash[i].ToString("X").PadLeft(4, '0');
}
return(temp);
}
public static string MD5Encrypt(string sDataIn, string move)
{
System.Security.Cryptography.MD5CryptoServiceProvider md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();
byte[] byt, bytHash;
byt = System.Text.Encoding.UTF8.GetBytes(move + sDataIn);
bytHash = md5.ComputeHash(byt);
md5.Clear();
string sTemp = "";
for (int i = 0; i < bytHash.Length; i++)
{
sTemp += bytHash[i].ToString("x").PadLeft(2, '0');
}
return(sTemp);
}
///// <summary>
///// 用MD5加密字符串
///// </summary>
///// <param name="assemble">待加密的字符串</param>
///// <returns></returns>
//public static string MD5Encrypt(string assemble)
//{
// string cl = assemble;
// string pwd = "";
// MD5 md5 = MD5.Create();//实例化一个md5对像
// // 加密后是一个字节类型的数组，这里要注意编码UTF8/Unicode等的选择
// byte[] s = md5.ComputeHash(Encoding.UTF8.GetBytes(cl));
// // 通过使用循环，将字节类型的数组转换为字符串，此字符串是常规字符格式化所得
// for (int i = 0; i < s.Length; i++)
// {
// // 将得到的字符串使用十六进制类型格式。格式后的字符是小写的字母，如果使用大写（X）则格式后的字符是大写字符
// pwd = pwd + s[i].ToString("x");
// }
// return pwd;
//}
/// <summary>
/// 取MD5
/// </summary>
/// <param name="sDataIn"></param>
/// <returns></returns>
public static string GetMD5(string sDataIn)
{
System.Security.Cryptography.MD5CryptoServiceProvider md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();
byte[] bytValue, bytHash;
bytValue = System.Text.Encoding.UTF8.GetBytes(sDataIn);
bytHash = md5.ComputeHash(bytValue);
md5.Clear();
string sTemp = "";
for (int i = 0; i < bytHash.Length; i++)
{
sTemp += bytHash[i].ToString("X").PadLeft(2, '0');
}
return(sTemp.ToLower());
}
private string GetMd5(string str)
{
System.Security.Cryptography.MD5CryptoServiceProvider md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();
byte[] byt, bytHash;
byt = System.Text.Encoding.UTF8.GetBytes(str);
bytHash = md5.ComputeHash(byt);
md5.Clear();
string sTemp = "";
for (int i = 0; i < bytHash.Length; i++)
{
sTemp += bytHash[i].ToString("x").PadLeft(2, '0');
}
return(sTemp);
}
//工具类：
//1、MD5处理 Md5Encrypt
//2、生成唯一流水号
//3、AES加密、解密处理
//4、RSA公钥加密、解密、验签处理
//---------------------------------------MD5处理------------------------------------------------------------
public static String Md5Encrypt(String strSource)
{
System.Security.Cryptography.MD5CryptoServiceProvider md5 =
new System.Security.Cryptography.MD5CryptoServiceProvider();
byte[] bytValue, bytHash;
bytValue = System.Text.Encoding.UTF8.GetBytes("" + strSource);
bytHash = md5.ComputeHash(bytValue);
md5.Clear();
string sTemp = "";
for (int i = 0; i < bytHash.Length; i++)
{
sTemp += bytHash[i].ToString("x").PadLeft(2, '0');
}
return(sTemp);
}
public static string md5str(string content)
{
System.Security.Cryptography.MD5CryptoServiceProvider md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();
byte[] data = System.Text.Encoding.UTF8.GetBytes(content);
byte[] md5Data = md5.ComputeHash(data, 0, data.Length);
md5.Clear();
string destString = "";
for (int i = 0; i < md5Data.Length; i++)
{
destString += System.Convert.ToString(md5Data[i], 16).PadLeft(2, '0');
}
destString = destString.PadLeft(32, '0');
return(destString);
}
/// <summary>
/// 计算MD5 16位
/// </summary>
/// <param name="s"></param>
/// <returns></returns>
public static string Md5Hex(String str)
{
System.Security.Cryptography.MD5 md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();
byte[] bytes = System.Text.Encoding.UTF8.GetBytes(str);
bytes = md5.ComputeHash(bytes);
md5.Clear();
StringBuilder strReturn = new StringBuilder();
for (int i = 0; i < bytes.Length; i++)
{
strReturn.Append(Convert.ToString(bytes[i], 16).PadLeft(2, '0'));
}
return(strReturn.ToString().PadLeft(32, '0'));
}
public static string GetMD5(string md5, Encoding encode)
{
System.Security.Cryptography.MD5CryptoServiceProvider md = new System.Security.Cryptography.MD5CryptoServiceProvider();
byte[] value, hash;
value = encode.GetBytes(md5);
hash = md.ComputeHash(value);
md.Clear();
string temp = "";
for (int i = 0, len = hash.Length; i < len; i++)
{
temp += hash[i].ToString("X").PadLeft(2, '0');
}
return(temp);
}
public static IEnumerable <string> getMd5(string md5)
{
System.Security.Cryptography.MD5CryptoServiceProvider md = new System.Security.Cryptography.MD5CryptoServiceProvider();
byte[] value, hash;
value = System.Text.Encoding.UTF8.GetBytes(md5);
hash = md.ComputeHash(value);
md.Clear();
string temp = "";
for (int i = 0, len = hash.Length; i < len; i++)
{
temp += hash[i].ToString("x").PadLeft(2, '0');
}
yield return(temp);
}
public static string getFileMd5(string file)
{
FileStream f = new FileStream(file, FileMode.Open);
System.Security.Cryptography.MD5 md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();
byte[] retVal = md5.ComputeHash(f);
f.Close();
md5.Clear();
StringBuilder sb = new StringBuilder();
for (int i = 0; i < retVal.Length; i++)
{
sb.Append(retVal[i].ToString("x2"));
}
return(sb.ToString());
}
public static string Sinature(string s)
{
var md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();
byte[] bytes = System.Text.Encoding.UTF8.GetBytes(s);
byte[] md5Bytes = md5.ComputeHash(bytes);
md5.Clear();
string ret = "";
for (int i = 0; i < md5Bytes.Length; i++)
{
ret += md5Bytes[i].ToString("x");
}
return(ret);
}
/// <summary>
/// MD5加密
/// </summary>
/// <param name="sDataIn">要加密的字符串</param>
/// <param name="move">偏移量</param>
/// <returns>加密后的字符串</returns>
public static string MD5(string sDataIn, string move)
{
System.Security.Cryptography.MD5CryptoServiceProvider md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();
byte[] bytValue, bytHash;
bytValue = System.Text.Encoding.UTF8.GetBytes(move + sDataIn);
bytHash = md5.ComputeHash(bytValue); md5.Clear();
StringBuilder builder = new StringBuilder();
for (int i = 0; i < bytHash.Length; i++)
{
builder.Append(bytHash[i].ToString("x").PadLeft(2, '0'));
}
string sTemp = builder.ToString();
return(sTemp);
}
/// <summary>
/// チェックサム(MD5)を取得
/// </summary>
public string GetMD5()
{
//ref http://dobon.net/vb/dotnet/string/md5.html
var bytes = GetBin();
var md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();
var bs = md5.ComputeHash(bytes);
md5.Clear();
var result = new System.Text.StringBuilder();
foreach (var b in bs)
{
result.Append(b.ToString("x2"));
}
return(result.ToString());
}
public static string Hash_MD5_32(string word, bool toUpper = true)
{
try
{
System.Security.Cryptography.MD5CryptoServiceProvider MD5CSP
= new System.Security.Cryptography.MD5CryptoServiceProvider();
byte[] bytValue = System.Text.Encoding.UTF8.GetBytes(word);
byte[] bytHash = MD5CSP.ComputeHash(bytValue);
MD5CSP.Clear();
//根据计算得到的Hash码翻译为MD5码
string sHash = "", sTemp = "";
for (int counter = 0; counter < bytHash.Count(); counter++)
{
long i = bytHash[counter] / 16;
if (i > 9)
{
sTemp = ((char)(i - 10 + 0x41)).ToString();
}
else
{
sTemp = ((char)(i + 0x30)).ToString();
}
i = bytHash[counter] % 16;
if (i > 9)
{
sTemp += ((char)(i - 10 + 0x41)).ToString();
}
else
{
sTemp += ((char)(i + 0x30)).ToString();
}
sHash += sTemp;
}
//根据大小写规则决定返回的字符串
return(toUpper ? sHash : sHash.ToLower());
}
catch (Exception ex)
{
throw new Exception(ex.Message);
}
}