public static string MD5(string sourceStr)
{
string str = string.Empty;
System.Security.Cryptography.MD5 md = System.Security.Cryptography.MD5.Create();
MemoryStream stream = new MemoryStream();
StreamWriter writer = new StreamWriter(stream);
StreamReader reader = new StreamReader(stream);
if (sourceStr == null)
{
sourceStr = string.Empty;
}
writer.Write(sourceStr);
writer.Flush();
stream.Seek(0L, SeekOrigin.Begin);
byte[] buffer = md.ComputeHash(stream);
stream.SetLength(0L);
writer.Flush();
for (int i = 0; i < buffer.Length; i++)
{
writer.Write("{0:X2}", buffer[i]);
}
writer.Flush();
stream.Seek(0L, SeekOrigin.Begin);
str = reader.ReadToEnd();
writer.Close();
writer.Dispose();
reader.Close();
reader.Dispose();
stream.Close();
stream.Dispose();
return(str);
}
public static byte[] MD5(byte[] data)
{
using (System.Security.Cryptography.MD5 md5 = System.Security.Cryptography.MD5.Create())
{
return(ComputeHash(md5, data));
}
}
public override byte[] ByteHashAlgorithm(string value)
{
System.Security.Cryptography.MD5 md5 = System.Security.Cryptography.MD5.Create();
byte[] bytes = md5.ComputeHash(System.Text.ASCIIEncoding.UTF8.GetBytes(value));
return(bytes);
}
public static bool CheckMD5(string fullPathName, string md5)
{
if (!File.Exists(fullPathName))
{
return(false);
}
#if UNITY_IPHONE
//ios下如果封装该方法在一个函数中，调用该函数来产生文件的MD5的时候，就会抛JIT异常。
//如果直接把这个产生MD5的方法体放在直接执行，就可以正常执行，这个原因还不清楚。
string md5Compute = null;
using (System.IO.FileStream fileStream = System.IO.File.OpenRead(fullPathName))
{
System.Security.Cryptography.MD5 md5Tmp = System.Security.Cryptography.MD5.Create();
byte[] fileMD5Bytes = md5Tmp.ComputeHash(fileStream);
md5Compute = System.BitConverter.ToString(fileMD5Bytes).Replace("-", "").ToLower();
}
#else
var md5Compute = Utils.BuildFileMd5(fullPathName);
#endif
bool isCheck = md5Compute.Trim() == md5.Trim();
if (!isCheck)
{
Logger.Log("MD5检验失败！： " + md5Compute + " --- " + md5);
}
return(isCheck);
}
public static string sign(string sourceData, string key)
{
System.Security.Cryptography.MD5 mD = System.Security.Cryptography.MD5.Create();
byte[] bytes = System.Text.Encoding.UTF8.GetBytes(sourceData + key);
byte[] data = mD.ComputeHash(bytes);
return(Jiami.GetbyteToString(data));
}
private static void EvpBytesToKey(string _password, byte[] _salt, out byte[] _key, out byte[] _iv)
{
List <byte> _hashes = new List <byte>(48);
byte[] _passwordBytes = System.Text.Encoding.UTF8.GetBytes(_password);
byte[] _currentHash = new byte[0];
System.Security.Cryptography.MD5 md5 = System.Security.Cryptography.MD5.Create();
bool _enoughBytesForKey = false;
while (!_enoughBytesForKey)
{
int _preHashLength = _currentHash.Length + _passwordBytes.Length + _salt.Length;
byte[] _preHash = new byte[_preHashLength];
Buffer.BlockCopy(_currentHash, 0, _preHash, 0, _currentHash.Length);
Buffer.BlockCopy(_passwordBytes, 0, _preHash, _currentHash.Length, _passwordBytes.Length);
Buffer.BlockCopy(_salt, 0, _preHash, _currentHash.Length + _passwordBytes.Length, _salt.Length);
_currentHash = md5.ComputeHash(_preHash);
_hashes.AddRange(_currentHash);
if (_hashes.Count >= 48)
{
_enoughBytesForKey = true;
}
}
_key = new byte[32];
_iv = new byte[16];
_hashes.CopyTo(0, _key, 0, 32);
_hashes.CopyTo(32, _iv, 0, 16);
md5.Clear();
md5 = null;
}
private static string CalculateChecksum(string path)
{
using (System.Security.Cryptography.MD5 md5 = System.Security.Cryptography.MD5.Create())
{
return(CalculateChecksum(path, md5));
}
}
/// <summary>
/// 解密数据
/// </summary>
/// <param name="Text"></param>
/// <param name="sKey"></param>
/// <returns></returns>
public static string Decrypt(string Text, string sKey)
{
DESCryptoServiceProvider des = new DESCryptoServiceProvider();
int len;
len = Text.Length / 2;
byte[] inputByteArray = new byte[len];
int x, i;
for (x = 0; x < len; x++)
{
i = Convert.ToInt32(Text.Substring(x * 2, 2), 16);
inputByteArray[x] = (byte)i;
}
System.Security.Cryptography.MD5 md5 = System.Security.Cryptography.MD5.Create();
string AscIIValue = BitConverter.ToString(md5.ComputeHash(Encoding.UTF8.GetBytes(sKey))).Replace("-", null).Substring(0, 8);
des.Key = ASCIIEncoding.ASCII.GetBytes(AscIIValue);
des.IV = ASCIIEncoding.ASCII.GetBytes(AscIIValue);
System.IO.MemoryStream ms = new System.IO.MemoryStream();
CryptoStream cs = new CryptoStream(ms, des.CreateDecryptor(), CryptoStreamMode.Write);
cs.Write(inputByteArray, 0, inputByteArray.Length);
cs.FlushFinalBlock();
return(Encoding.Default.GetString(ms.ToArray()));
}
public void DecryptDSAes(string path, DataSet ds)
{
System.Security.Cryptography.MD5 md5Hash = System.Security.Cryptography.MD5.Create();
// Convert the input string to a byte array and compute the hash.
byte[] data = md5Hash.ComputeHash(Encoding.UTF8.GetBytes(path));
// Create an AesManaged object
// with the specified key and IV.
using (AesManaged aesAlg = new AesManaged())
{
aesAlg.Key = data;
aesAlg.IV = data;
// Create a decrytor to perform the stream transform.
ICryptoTransform decryptor = aesAlg.CreateDecryptor(aesAlg.Key, aesAlg.IV);
// Create the streams used for decryption.
using (System.IO.FileStream msDecrypt = new System.IO.FileStream(path, System.IO.FileMode.Open))
{
using (CryptoStream csDecrypt = new CryptoStream(msDecrypt, decryptor, CryptoStreamMode.Read))
{
ds.ReadXml(csDecrypt);
}
}
}
}
/// <summary>
///
/// </summary>
/// <param name="Input">來源</param>
/// <param name="salted">Salted Hash字串</param>
/// <param name="Half">加密是16位or32位；如果是true為16位</param>
/// <returns></returns>
public static string MD5Encrypt(byte[] Input, string salted, bool Half)
{
if (salted == null || salted.Length == 0)//如果使用者沒給Salt值,那給預設
{
salted = "salted";
}
//byte[] Original = Encoding.Default.GetBytes(txt_Source.Text);//將來源字串轉為byte[]
byte[] SaltValue = Encoding.Default.GetBytes(salted); //將Salted Value轉為byte[]
byte[] ToSalt = new byte[Input.Length + SaltValue.Length]; //宣告新的byte[]來儲存加密後的值
Input.CopyTo(ToSalt, 0); //將來源字串複製到新byte[]
SaltValue.CopyTo(ToSalt, Input.Length); //將Salted Value複製到新byte[]
string output = "";
using (System.Security.Cryptography.MD5 md5 = System.Security.Cryptography.MD5.Create())
{
byte[] SaltPWD = md5.ComputeHash(ToSalt); //進行加密
byte[] PWD = new byte[SaltPWD.Length + SaltValue.Length]; //宣告新byte[]儲存加密及Salted的值
SaltPWD.CopyTo(PWD, 0); //將加密後的值複製到新byte[]
SaltValue.CopyTo(PWD, SaltPWD.Length); //將Salted Value複製到新byte[]
output = BitConverter.ToString(PWD).Replace("-", String.Empty);
}
if (Half)//16位MD5加密（取32位加密的9~25字元）
{
output = output.Substring(8, 16);
}
return(output);
}
public string CreateMD5Hash(string input)
{
// Use input string to calculate MD5 hash
StringBuilder sb = new StringBuilder();
try
{
System.Security.Cryptography.MD5 md5 = System.Security.Cryptography.MD5.Create();
byte[] inputBytes = System.Text.Encoding.ASCII.GetBytes(input);
byte[] hashBytes = md5.ComputeHash(inputBytes);
// Convert the byte array to hexadecimal string
for (int i = 0; i < hashBytes.Length; i++)
{
sb.Append(hashBytes[i].ToString("X2"));
// To force the hex string to lower-case letters instead of
// upper-case, use he following line instead:
// sb.Append(hashBytes[i].ToString("x2"));
}
}
catch (Exception ex)
{
;
}
return(sb.ToString());
}
private SynchronizingFileStream(ITransactionalStorage transactionalStorage, string fileName,
StorageStreamAccess storageStreamAccess, NameValueCollection metadata,
IndexStorage indexStorage, StorageOperationsTask operations)
: base(transactionalStorage, fileName, storageStreamAccess, metadata, indexStorage, operations)
{
md5Hasher = new MD5CryptoServiceProvider();
}
public async Task DoLogin(string email, string password)
{
try {
Username = email;
using (System.Security.Cryptography.MD5 md5 = System.Security.Cryptography.MD5.Create())
{
byte[] inputBytes = System.Text.Encoding.ASCII.GetBytes(email);
byte[] hashBytes = md5.ComputeHash(inputBytes);
// Convert the byte array to hexadecimal string
StringBuilder sb = new StringBuilder();
for (int i = 0; i < hashBytes.Length; i++)
{
sb.Append(hashBytes[i].ToString("X2"));
}
Gravatar = sb.ToString().ToLower();
}
app = Realms.Sync.App.Create("opkanban-lymqs");
user = await app.LogInAsync(Realms.Sync.Credentials.EmailPassword(email, password));
partition = $"user={ user.Id }";
config = new Realms.Sync.SyncConfiguration(partition, user);
realm = await Realm.GetInstanceAsync(config);
IsLoggedIn = true;
LoginFailed = false;
} catch (Exception e) {
IsLoggedIn = false;
LoginFailed = true;
}
NotifyStateChanged();
}
/// <summary>
/// Compute MD5 hash of string
/// and return a string encoded base64
/// </summary>
/// <param name="inputString"></param>
/// <returns></returns>
public static string MD5GenerateHash(string inputString)
{
System.Security.Cryptography.MD5 hash = System.Security.Cryptography.MD5.Create();
Byte[] inputBytes = ASCIIEncoding.Default.GetBytes(inputString);
Byte[] outputBytes = hash.ComputeHash(inputBytes);
return(Convert.ToBase64String(outputBytes));
}
public static string Encode(string str)
{
try
{
System.Security.Cryptography.MD5 md5 = System.Security.Cryptography.MD5.Create();
byte[] data = md5.ComputeHash(Encoding.UTF8.GetBytes(str));
StringBuilder sb = new StringBuilder();
for (int i = 0; i < data.Length; i++)
{
sb.Append(data[i].ToString("x2"));
}
int len = 0;
for (int i = 0; i < sb.Length; i++)
{
if (sb[i] != '0')
{
break;
}
len++;
}
sb.Remove(0, len);
return(sb.ToString());
}
catch
{
return(null);
}
}
private static string[] HashMeBabyLikeAWagonWheel(string input)
{
using (System.Security.Cryptography.MD5 md5 = System.Security.Cryptography.MD5.Create())
{
string[] suspectedMatch = { "_", "_" };
byte[] retVal = md5.ComputeHash(System.Text.Encoding.ASCII.GetBytes(input));
StringBuilder sb = new StringBuilder();
for (int i = 0; i < retVal.Length; i++)
{
sb.Append(retVal[i].ToString("x2"));
}
if (sb.ToString().StartsWith("00000"))
{
int n;
bool isNumeric = int.TryParse(sb[5].ToString(), out n);
if (isNumeric && (n < 8))
{
suspectedMatch[0] = sb[5].ToString();
suspectedMatch[1] = sb[6].ToString();
}
}
return(suspectedMatch);
}
}
public static string Md5Hash(string input)
{
byte[] data = Encoding.UTF8.GetBytes(input);
System.Security.Cryptography.MD5 md5 = System.Security.Cryptography.MD5.Create();
byte[] output = md5.ComputeHash(data);
return(Convert.ToBase64String(output));
}
public static string GetMD5(string file, Int64 offset, Int64 size)
{
string md5String;
FileStream fileStream = File.Open(file, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
long fileSize = fileStream.Length;
fileStream.Seek(offset, SeekOrigin.Begin);
System.Security.Cryptography.MD5 md5 = System.Security.Cryptography.MD5.Create();
if (size != 0)
{
if (fileSize - offset < size)
{
size = fileSize - offset;
}
byte[] buffer = new byte[size];
fileStream.Read(buffer, 0, (int)size);
MemoryStream ms = new MemoryStream(buffer);
md5String = BitConverter.ToString(md5.ComputeHash(ms)).Replace("-", String.Empty);
}
else
{
md5String = BitConverter.ToString(md5.ComputeHash(fileStream)).Replace("-", String.Empty);
}
fileStream.Close();
return(md5String);
}
// GET api/<controller>/administrator/administrator
public string Get([FromUri] ResourceQuery query)
{
string nationalCode = query.NationalCode, hashPassword = query.HashedPassword;
try
{
Models.User u = UserRepository.GetInstance().FindByNationalCode(nationalCode);
using (System.Security.Cryptography.MD5 md5 =
System.Security.Cryptography.MD5.Create())
{
byte[] retVal = md5.ComputeHash(Encoding.Unicode.GetBytes(u.Password));
StringBuilder sb = new StringBuilder();
for (int i = 0; i < retVal.Length; i++)
{
sb.Append(retVal[i].ToString("x2"));
}
string serial = TicketRepository.GetInstance().Save(u);
return(sb.ToString() == hashPassword
? "{'ticket':'" + serial + "'}"
: "{'error':'User or password is wrong'}");
}
}
catch (EntityNotFoundException e)
{
Log.Info("user not found", e);
return("User or password is wrong");
}
}
public void EncryptStreamAes(string path, System.IO.Stream str)
{
System.Security.Cryptography.MD5 md5Hash = System.Security.Cryptography.MD5.Create();
// Convert the input string to a byte array and compute the hash.
byte[] data = md5Hash.ComputeHash(Encoding.UTF8.GetBytes(path));
// Create an AesManaged object
// with the specified key and IV.
using (AesManaged aesAlg = new AesManaged())
{
aesAlg.Key = data;
aesAlg.IV = data;
// Create a decrytor to perform the stream transform.
ICryptoTransform encryptor = aesAlg.CreateEncryptor(aesAlg.Key, aesAlg.IV);
// Create the streams used for encryption.
using (System.IO.FileStream msEncrypt = new System.IO.FileStream(path, System.IO.FileMode.Create))
{
using (CryptoStream csEncrypt = new CryptoStream(msEncrypt, encryptor, CryptoStreamMode.Write))
{
str.CopyTo(csEncrypt);
}
}
}
}
/// <summary>
/// 计算指定文件的MD5值
/// </summary>
/// <param name="fileName">指定文件的完全限定名称</param>
/// <returns>返回值的字符串形式</returns>
public static string CreateMD5ByFile(String fileName)
{
string hashMD5 = String.Empty;
//检查文件是否存在，如果文件存在则进行计算，否则返回空值
if (System.IO.File.Exists(fileName))
{
using (System.IO.FileStream fs = new System.IO.FileStream(fileName, System.IO.FileMode.Open, System.IO.FileAccess.Read))
{
//计算文件的MD5值
System.Security.Cryptography.MD5 calculator = System.Security.Cryptography.MD5.Create();
Byte[] buffer = calculator.ComputeHash(fs);
calculator.Clear();
//将字节数组转换成十六进制的字符串形式
StringBuilder stringBuilder = new StringBuilder();
for (int i = 0; i < buffer.Length; i++)
{
stringBuilder.Append(buffer[i].ToString("x2"));
}
hashMD5 = stringBuilder.ToString();
} //关闭文件流
} //结束计算
return(hashMD5);
}
public static string GetMD5Code(string input)
{
System.Security.Cryptography.MD5 md5 = System.Security.Cryptography.MD5.Create();
byte[] data = md5.ComputeHash(Encoding.Default.GetBytes(input));
//正常加密 每个数组元素转换16进制数字
StringBuilder sBuilder = new StringBuilder();
for (int i = 0; i < data.Length; i++)
{
sBuilder.Append(data[i].ToString("x2"));
}
////混淆加密 每个数组元素转换16进制数字 + henry
//StringBuilder sBuilder = new StringBuilder();
//for (int i = 0; i < data.Length; i++)
//{
// sBuilder.Append(data[i].ToString("x2") + "henry");
//}
//正常加密 通过BitConverter转换为string类型 但是会生成带“-”符号 用Replace 替换掉
string output = BitConverter.ToString(data).Replace("-", "");
//混淆加密 把0替换成L
string otherput = output.Replace("0", "l");
return(sBuilder.ToString());
}
/// <summary>
/// 获取字符串的特征串
/// </summary>
/// <param name="sInputString">输入文本</param>
/// <returns></returns>
public static string HashString(string sInputString)
{
System.Security.Cryptography.MD5 md5 = System.Security.Cryptography.MD5.Create();
string encoded = BitConverter.ToString(md5.ComputeHash(Encoding.Default.GetBytes(sInputString))).Replace("-", "");
return(encoded);
}
/// <summary>
/// 返回16进制MD5值
/// </summary>
/// <param name="inputString"></param>
/// <returns></returns>
public static string GetMD5Value(string inputString)
{
byte[] inputBuffer = Encoding.UTF8.GetBytes(inputString);
System.Security.Cryptography.MD5 md5 = System.Security.Cryptography.MD5.Create();
byte[] hashBuffer = md5.ComputeHash(inputBuffer);
return(BytesToHexString(hashBuffer));
}
public string CreateMD5Hash2(string input)
{
System.Security.Cryptography.MD5 md5 = System.Security.Cryptography.MD5.Create();
byte[] inputBytes = System.Text.Encoding.UTF8.GetBytes(input);
byte[] hashBytes = md5.ComputeHash(inputBytes);
return(System.BitConverter.ToString(hashBytes).Replace("-", "").ToLower());
}
public static string GetMd5Hash(string input)
{
StringBuilder sBuilder = new StringBuilder();
using (System.Security.Cryptography.MD5 md5Hash = System.Security.Cryptography.MD5.Create())
{
if (input == "" || input == null)
{
input = "chanhniem";
}
// Convert the input string to a byte array and compute the hash.
byte[] data = md5Hash.ComputeHash(Encoding.UTF8.GetBytes(input));
// Create a new Stringbuilder to collect the bytes
// and create a string.
// Loop through each byte of the hashed data
// and format each one as a hexadecimal string.
for (int i = 0; i < data.Length; i++)
{
sBuilder.Append(data[i].ToString("x2"));
}
}
// Return the hexadecimal string.
return(sBuilder.ToString());
}
/// <summary>
/// MD5加密
/// </summary>
/// <param name="str">加密字符</param>
/// <param name="code">加密位数16/32</param>
/// <returns></returns>
public static string md5(string str, int code = 32)
{
string strEncrypt = string.Empty;
if (code == 16)
{
MD5CryptoServiceProvider md5 = new MD5CryptoServiceProvider();
strEncrypt = BitConverter.ToString(md5.ComputeHash(UTF8Encoding.Default.GetBytes(str)), 4, 8);
strEncrypt = strEncrypt.Replace("-", "").ToLower();
}
if (code == 32)
{
StringBuilder result = new StringBuilder();
System.Security.Cryptography.MD5 md5 = System.Security.Cryptography.MD5.Create();
byte[] s = md5.ComputeHash(Encoding.UTF8.GetBytes(str));
for (int i = 0; i < s.Length; i++)
{
result.Append(s[i].ToString("x"));
}
strEncrypt = result.ToString();
}
return(strEncrypt);
}
public string EncryptMD5(string text, bool isLower, int bit)
{
string text2 = string.Empty;
if (bit != 32 && bit != 16)
{
return(text2);
}
if (bit == 32)
{
System.Security.Cryptography.MD5 mD = System.Security.Cryptography.MD5.Create();
byte[] array = mD.ComputeHash(System.Text.Encoding.UTF8.GetBytes(text));
for (int i = 0; i < array.Length; i++)
{
text2 += array[i].ToString("X");
}
}
else
{
System.Security.Cryptography.MD5CryptoServiceProvider mD5CryptoServiceProvider = new System.Security.Cryptography.MD5CryptoServiceProvider();
text2 = System.BitConverter.ToString(mD5CryptoServiceProvider.ComputeHash(System.Text.Encoding.Default.GetBytes(text)), 4, 8);
text2 = text2.Replace("-", "");
}
if (isLower)
{
text2 = text2.ToLower();
}
return(text2);
}
/// <summary>
/// MD5编码
/// </summary>
/// <param name="value">明文</param>
/// <param name="bit">位长</param>
/// <returns></returns>
public static string Get(string value, MD5Bit bit)
{
// Create a new Stringbuilder to collect the bytes
// and create a string.
StringBuilder sBuilder = new StringBuilder();
if (bit == MD5Bit.L32)
{
// Create a new instance of the MD5CryptoServiceProvider object.
System.Security.Cryptography.MD5 md5Hasher = System.Security.Cryptography.MD5.Create();
// Convert the input string to a byte array and compute the hash.
byte[] data = md5Hasher.ComputeHash(Encoding.Default.GetBytes(value));
// Loop through each byte of the hashed data
// and format each one as a hexadecimal string.
for (int i = 0; i < data.Length; i++)
{
sBuilder.Append(data[i].ToString("x2"));
}
}
if (bit == MD5Bit.L16)
{
// This is one implementation of the abstract class MD5.
System.Security.Cryptography.MD5 md5 = new System.Security.Cryptography.MD5CryptoServiceProvider();
string temp = BitConverter.ToString(md5.ComputeHash(Encoding.Default.GetBytes(value)), 4, 8);
temp = temp.Replace("-", "");
sBuilder.Append(temp);
}
// Return the hexadecimal string.
return(sBuilder.ToString());
}
public static byte[] ComputeHash(byte[] data)
{
if (MD5.md5 == null)
{
MD5.md5 = System.Security.Cryptography.MD5.Create();
}
return(MD5.md5.ComputeHash(data));
}
public override void AppendData(byte[] data, int offset, int count)
{
if (_md5 == null)
{
_md5 = MD5.Create();
}
_md5.TransformBlock(data, offset, count, null, 0);
}
public HMACSSLv3Verify(byte[] key)
{
this.HashSizeValue = 288;
this.KeyValue = (byte[]) key.Clone();
_md5 = new MD5CryptoServiceProvider();
_sha1 = new SHA1CryptoServiceProvider();
}
public static string MD5(string toCryString)
{
toCryString = toCryString ?? string.Empty;
using (System.Security.Cryptography.MD5 provider = System.Security.Cryptography.MD5.Create())
{
return(BitConverter.ToString(provider.ComputeHash(Encoding.UTF8.GetBytes(toCryString))).Replace("-", "").ToLower());
}
}
public WriterWorkItem(FileStream stream, BinaryWriter writer, MD5 md5)
{
Stream = stream;
Writer = writer;
Buffer = new MemoryStream(2048);
BufferWriter = new BinaryWriter(Buffer);
MD5 = md5;
}
public Program()
{
md5Hasher = MD5.Create();
InitializeComponent();
folderSelector = new FolderBrowserDialog ();
//Could help improve time from open to use? Nah.
//folderSelector.RootFolder = Environment.CurrentDirectory;
}
/// <summary>
/// Rfc 2104.
/// </summary>
/// <param name="rgbKey"></param>
public HMACMD5 (byte[] rgbKey)
{
HashSizeValue = 128;
// Create the hash algorithms.
hash1 = MD5.Create();
hash2 = MD5.Create();
this.Key = rgbKey;
}
public WriterWorkItem(FileStream fileStream, UnmanagedMemoryStream memStream, MD5 md5)
{
_fileStream = fileStream;
_memStream = memStream;
_workingStream = (Stream)fileStream ?? memStream;
Buffer = new MemoryStream(8192);
BufferWriter = new BinaryWriter(Buffer);
MD5 = md5;
}
/// <summary>
/// Frees an object for generating the hashes that was acquired from <see cref="GetHasher"/>,
/// adding it back to the pool for later reuse.
/// </summary>
/// <param name="hasher">The object to free.</param>
static void FreeHasher(MD5 hasher)
{
lock (_hashersSync)
{
if (log.IsDebugEnabled)
log.DebugFormat("Freeing hasher [object hash: {0}].", hasher.GetHashCode());
_hashers.Push(hasher);
}
}
public static byte[] CreateMD5Checksum(this Stream stream, bool startAtBeginning = true, MD5 md5 = null)
{
if (md5 == null)
md5 = MD5.Create();
if (startAtBeginning)
stream.Seek(0, SeekOrigin.Begin);
return md5.ComputeHash(stream);
}
public void FixtureSetUp ()
{
Assembly a = Assembly.GetExecutingAssembly ();
hashEvidence = new Hash (a);
md5 = MD5.Create ();
digestMd5 = hashEvidence.GenerateHash (md5);
sha1 = SHA1.Create ();
digestSha1 = hashEvidence.GenerateHash (sha1);
}
public override byte[] GetHashAndReset()
{
if (_md5 == null)
{
_md5 = MD5.Create();
}
_md5.TransformFinalBlock(__emptyByteArray, 0, 0);
var hash = _md5.Hash;
_md5.Dispose();
_md5 = null;
return hash;
}
public static string GetMD5Hash(FileInfo fileInfo)
{
if(MD5Crypto == null)
{
MD5Crypto = MD5.Create();
}
using (FileStream fs = fileInfo.OpenRead())
{
byte[] output = MD5Crypto.ComputeHash(fs);
string hashString = Convert.ToBase64String(output);
return hashString;
}
}
/// <summary>
/// Initializes a new instance of the <see cref="MD5HashStream"/> class.
/// </summary>
/// <param name="stream">Stream object.</param>
/// <param name="lastTransferOffset">Offset of the transferred bytes.</param>
/// <param name="md5hashCheck">Whether need to calculate MD5Hash.</param>
public MD5HashStream(
Stream stream,
long lastTransferOffset,
bool md5hashCheck)
{
this.stream = stream;
this.md5hashOffset = lastTransferOffset;
if ((0 == this.md5hashOffset)
|| (!md5hashCheck))
{
this.finishedSeparateMd5Calculator = true;
this.succeededSeparateMd5Calculator = true;
}
else
{
this.semaphore = new SemaphoreSlim(1, 1);
}
if (md5hashCheck)
{
if (CloudStorageAccount.UseV1MD5)
{
this.md5hash = new MD5CryptoServiceProvider();
}
else
{
this.md5hash = new NativeMD5();
}
}
if ((!this.finishedSeparateMd5Calculator)
&& (!this.stream.CanRead))
{
throw new NotSupportedException(string.Format(
CultureInfo.CurrentCulture,
Resources.StreamMustSupportReadException,
"Stream"));
}
if (!this.stream.CanSeek)
{
throw new NotSupportedException(string.Format(
CultureInfo.CurrentCulture,
Resources.StreamMustSupportSeekException,
"Stream"));
}
}
public static void ContinuousHashFor(MD5 md5, Stream s, int startPosition, long count)
{
Ensure.NotNull(md5, "md5");
Ensure.Nonnegative(count, "count");
if (s.Position != startPosition)
s.Position = startPosition;
var buffer = new byte[4096];
long toRead = count;
while (toRead > 0)
{
int read = s.Read(buffer, 0, (int)Math.Min(toRead, buffer.Length));
if (read == 0)
break;
md5.TransformBlock(buffer, 0, read, null, 0);
toRead -= read;
}
}
//clientServer: true if random bytes should be processed as first the client bytes, then the server bytes
// false otherwise
public Ssl3DeriveBytes(byte[] secret, byte[] clientRandom, byte[] serverRandom, bool clientServer)
{
if (secret == null || clientRandom == null || serverRandom == null)
throw new ArgumentNullException();
if (clientRandom.Length != 32 || serverRandom.Length != 32)
throw new ArgumentException();
m_Disposed = false;
m_Secret = (byte[])secret.Clone();
m_Random = new byte[64];
if (clientServer) {
Array.Copy(clientRandom, 0, m_Random, 0, 32);
Array.Copy(serverRandom, 0, m_Random, 32, 32);
} else {
Array.Copy(serverRandom, 0, m_Random, 0, 32);
Array.Copy(clientRandom, 0, m_Random, 32, 32);
}
m_MD5 = new MD5CryptoServiceProvider();
m_SHA1 = new SHA1CryptoServiceProvider();
Reset();
}
// constructors
public GridFSForwardOnlyDownloadStream(
GridFSBucket bucket,
IReadBinding binding,
GridFSFilesCollectionDocument filesCollectionDocument,
bool checkMD5)
: base(bucket, binding, filesCollectionDocument)
{
_checkMD5 = checkMD5;
if (_checkMD5)
{
_md5 = MD5.Create();
}
_lastChunkNumber = (int)((filesCollectionDocument.Length - 1) / filesCollectionDocument.ChunkSizeBytes);
_lastChunkSize = (int)(filesCollectionDocument.Length % filesCollectionDocument.ChunkSizeBytes);
if (_lastChunkSize == 0)
{
_lastChunkSize = filesCollectionDocument.ChunkSizeBytes;
}
}
// constructors
public GridFSForwardOnlyUploadStream(
GridFSBucket bucket,
IWriteBinding binding,
ObjectId id,
string filename,
BsonDocument metadata,
IEnumerable<string> aliases,
string contentType,
int chunkSizeBytes,
int batchSize)
{
_bucket = bucket;
_binding = binding;
_id = id;
_filename = filename;
_metadata = metadata; // can be null
_aliases = aliases == null ? null : aliases.ToList(); // can be null
_contentType = contentType; // can be null
_chunkSizeBytes = chunkSizeBytes;
_batchSize = batchSize;
_batch = new List<byte[]>();
_md5 = MD5.Create();
}
public Md5HashService()
{
_hasher = new MD5CryptoServiceProvider();
}
public MD5Proxy()
{
_md5 = MD5.Create();
}
protected override void Dispose(bool disposing)
{
if (this.hashProvider != null)
{
this.hashProvider.Dispose();
this.hashProvider = null;
}
base.Dispose(disposing);
}
internal ByteStore(PRStream str)
{
md5 = new MD5CryptoServiceProvider();
ByteBuffer bb = new ByteBuffer();
int level = 100;
SerObject(str, level, bb);
this.b = bb.ToByteArray();
md5 = null;
}
public int ReadStreamEnd()
{
int exitCode = StopChildProcess();
if (md5 != null) {
md5.TransformFinalBlock(new byte[0], 0, 0);
mMD5SumOfPcm = md5.Hash;
md5.Dispose();
md5 = null;
mMD5TmpBuffer = null;
}
mBytesPerFrame = 0;
return exitCode;
}
public DownloadStream(Stream streamVal, bool decompressVal, byte[] hashValue)
{
this.stream = streamVal;
this.decompress = decompressVal;
this.expectedHashValue = hashValue;
if (hashValue != null && hashValue.Length == 16)
{
this.expectedHashValue = hashValue;
this.hashProvider = MD5Util.TryCreateMD5Provider();
}
}
public void ReadStreamAbort()
{
System.Diagnostics.Debug.Assert(null != mChildProcess);
mPipeServerStream.Close();
mPipeServerStream = null;
mChildProcess.Close();
mChildProcess = null;
mBinaryReader.Close();
mBinaryReader = null;
if (md5 != null) {
md5.Dispose();
md5 = null;
mMD5TmpBuffer = null;
}
}
/// <summary>
/// FLACファイルからPCMデータを取り出し開始。
/// </summary>
/// <param name="flacFilePath">読み込むファイルパス。</param>
/// <param name="skipFrames">ファイルの先頭からのスキップするフレーム数。0以外の値を指定するとMD5のチェックが行われなくなる。</param>
/// <param name="wantFrames">取得するフレーム数。</param>
/// <param name="pcmData">出てきたデコード後のPCMデータ。</param>
/// <returns>0: 成功。負: 失敗。</returns>
public int ReadStreamBegin(string flacFilePath, long skipFrames, long wantFrames, int typicalReadFrames, out PcmDataLib.PcmData pcmData_return)
{
List<FlacCuesheetTrackInfo> cti;
int rv = ReadStartCommon(ReadMode.HeadereAndData, flacFilePath, skipFrames, wantFrames, out pcmData_return, out cti);
if (rv != 0) {
StopChildProcess();
mBytesPerFrame = 0;
return rv;
}
mBytesPerFrame = pcmData_return.BitsPerFrame / 8;
if (CalcMD5 && skipFrames == 0 && wantFrames == mNumFrames) {
md5 = new MD5CryptoServiceProvider();
mMD5SumOfPcm = new byte[MD5_BYTES];
mMD5TmpBuffer = new byte[mBytesPerFrame * typicalReadFrames];
}
return 0;
}
protected AbstractIDMigrator() {
md5Digest = MD5.Create();
}
public MD5 GetChecksumAlgorithm ()
{
return md5 ?? (md5 = MD5.Create ());
}
public void SetUp ()
{
md5 = new MD5Cng ();
}
private void WriteHeader(MD5 md5, Stream stream, ChunkHeader chunkHeader)
{
var chunkHeaderBytes = chunkHeader.AsByteArray();
md5.TransformBlock(chunkHeaderBytes, 0, ChunkHeader.Size, null, 0);
stream.Write(chunkHeaderBytes, 0, ChunkHeader.Size);
}
/// <summary>
/// Initializes a new instance of the <see cref="ParallelUpload"/> class.
/// </summary>
/// <param name="source">The source stream.</param>
/// <param name="options">The request options.</param>
/// <param name="blockSize">The block size to use.</param>
/// <param name="blob">The blob to upload to.</param>
internal ParallelUpload(Stream source, BlobRequestOptions options, long blockSize, CloudBlockBlob blob)
{
this.sourceStream = source;
this.blockSize = blockSize;
this.options = options;
this.dispensizedStreamSize = 0;
this.blob = blob;
this.blobHash = MD5.Create();
this.blockList = new List<string>();
this.parellelism = this.GetParallelismFactor();
}
