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Lidarr/src/NzbDrone.Common/HashUtil.cs

38 lines
1.0 KiB

using System;
using System.Text;
namespace NzbDrone.Common
{
public static class HashUtil
{
public static string CalculateCrc(string input)
{
uint mCrc = 0xffffffff;
byte[] bytes = Encoding.UTF8.GetBytes(input);
foreach (byte myByte in bytes)
{
mCrc ^= (uint)myByte << 24;
for (var i = 0; i < 8; i++)
{
if ((Convert.ToUInt32(mCrc) & 0x80000000) == 0x80000000)
{
mCrc = (mCrc << 1) ^ 0x04C11DB7;
}
else
{
mCrc <<= 1;
}
}
}
return $"{mCrc:x8}";
}
public static string AnonymousToken()
{
var seed = $"{Environment.ProcessorCount}_{Environment.OSVersion.Platform}_{Environment.MachineName}_{Environment.UserName}";
return HashUtil.CalculateCrc(seed);
}
}
}