public static string HashHex(EHashType type, Encoding codec, string cad)
{
if (string.IsNullOrEmpty(cad)) return null;
byte[] raw = HashRaw(type, codec.GetBytes(cad));
return HexHelper.Buffer2Hex(raw);
}
public HashHelper(EHashType type, Encoding codec, string cad)
{
if (codec != null && !string.IsNullOrEmpty(cad))
{
_Raw = HashRaw(type, codec.GetBytes(cad));
_Hex = HexHelper.Buffer2Hex(_Raw);
}
}
public static string HashHexFile(EHashType type, string file)
{
try
{
using (FileStream fs = File.OpenRead(file))
return HashHex(type, fs, false);
}
catch { }
return null;
}
public static byte[] HashRaw(EHashType type, byte[] bs)
{
if (bs == null) return null;
HashAlgorithm cmd5 = null;
switch (type)
{
case EHashType.Md5: cmd5 = new MD5CryptoServiceProvider(); break;
case EHashType.Sha1: cmd5 = new SHA1CryptoServiceProvider(); break;
case EHashType.Sha256: cmd5 = new SHA256CryptoServiceProvider(); break;
case EHashType.Sha384: cmd5 = new SHA384CryptoServiceProvider(); break;
case EHashType.Sha512: cmd5 = new SHA512CryptoServiceProvider(); break;
}
bs = cmd5.ComputeHash(bs);
cmd5.Dispose();
return bs;
}
public static byte[] HashRaw(EHashType type, Stream bs, bool seekBegin)
{
if (bs == null) return null;
HashAlgorithm cmd5 = null;
switch (type)
{
case EHashType.Md5: cmd5 = new MD5CryptoServiceProvider(); break;
case EHashType.Sha1: cmd5 = new SHA1CryptoServiceProvider(); break;
case EHashType.Sha256: cmd5 = new SHA256CryptoServiceProvider(); break;
case EHashType.Sha384: cmd5 = new SHA384CryptoServiceProvider(); break;
case EHashType.Sha512: cmd5 = new SHA512CryptoServiceProvider(); break;
}
if (seekBegin) bs.Seek(0, SeekOrigin.Begin);
byte[] bsh = cmd5.ComputeHash(bs);
cmd5.Dispose();
return bsh;
}
public static string HashHex(EHashType type, string cad)
{
return(HashHex(type, Encoding.UTF8, cad));
}
public HashHelper(EHashType type, byte[] bx)
{
_Raw = HashRaw(type, bx, 0, bx.Length);
_Hex = HexHelper.Buffer2Hex(_Raw);
}
public HashHelper(EHashType type, string cad) : this(type, Encoding.UTF8, cad)
{
}
public static string HashHex(EHashType type, Stream bs, bool seekBegin)
{
return(HexHelper.Buffer2Hex(HashRaw(type, bs, seekBegin)));
}
public static string HashHex(EHashType type, byte[] bs, int index, int length)
{
return(HexHelper.Buffer2Hex(HashRaw(type, bs, index, length)));
}
public static string HashHex(EHashType type, Stream bs, bool seekBegin) { return HexHelper.Buffer2Hex(HashRaw(type, bs, seekBegin)); }
public static string HashHex(EHashType type, byte[] bs) { return HexHelper.Buffer2Hex(HashRaw(type, bs)); }
public static string HashHex(EHashType type, string cad) { return HashHex(type, Encoding.UTF8, cad); }
public HashHelper(EHashType type, byte[] bx)
{
_Raw = HashRaw(type, bx);
_Hex = HexHelper.Buffer2Hex(_Raw);
}
public HashHelper(EHashType type, string cad) : this(type, Encoding.UTF8, cad) { }
public LibraHasher(EHashType eHashType)
{
_eHashType = eHashType;
}