public static bool IsMd5Valid(string messageBody, string expectedMd5)
{
if (messageBody == null)
{
throw new ArgumentNullException("messageBody");
}
// Define the hash algorithm to use
byte[] hashBytes;
using (var hash = new MD5Cng())
{
hashBytes = hash.ComputeHash(Encoding.UTF8.GetBytes(messageBody));
hash.Clear();
}
var messageBodyMd5 = hashBytes.ToHex();
if (messageBodyMd5 == expectedMd5)
{
return true;
}
return false;
}
/// <summary>
/// MD5Cng
/// 此类型的任何公共static成员都是线程安全的。但不保证所有实例成员都是线程安全的
/// </summary>
private static string Encrypt_static(string clearText, Encoding encode)
{
MD5 md5 = null;
try
{
byte[] originalBytes = encode.GetBytes(clearText); //Encoding.UTF8.GetBytes(clearText);
md5 = new MD5Cng();
byte[] data = md5.ComputeHash(originalBytes);
StringBuilder builder = new StringBuilder();
foreach (var item in data)
{
builder.Append(item.ToString("X2"));
}
return builder.ToString();
}
catch (ArgumentNullException) { return clearText; }
catch (EncoderFallbackException) { return clearText; }
//catch (TargetInvocationException) { return clearText; }
catch (ObjectDisposedException) { return clearText; }
catch (InvalidOperationException) { return clearText; }
catch { return clearText; }
finally
{
if (md5 != null)
{
md5.Clear();
md5.Dispose();
}
md5 = null;
}
}
