roadie/Roadie.Api.Library/Extensions/ByteExt.cs

namespace Roadie.Library.Extensions
{
    public static class ByteExt
    {
        public static int ComputeHash(this byte[] data)
        {
            if (data == null || data.Length == 0) return 0;
            unchecked
            {
                const int p = 16777619;
                var hash = (int)2166136261;

                for (var i = 0; i < data.Length; i++) hash = (hash ^ data[i]) * p;
                hash += hash << 13;
                hash ^= hash >> 7;
                hash += hash << 3;
                hash ^= hash >> 17;
                hash += hash << 5;
                return hash;
            }
        }
    }
}