Compare binary files in C#

Question

I want to compare two binary files. One of them is already stored on the server with a pre-calculated CRC32 in the database from when I stored it originally.

I know

Answer 1

This is how I would do it if you didn't want to rely on crc:

    /// 

    /// Binary comparison of two files
    /// 
    /// the file to compare
    /// the other file to compare
    /// a value indicateing weather the file are identical
    public static bool CompareFiles(string fileName1, string fileName2)
    {
        FileInfo info1 = new FileInfo(fileName1);
        FileInfo info2 = new FileInfo(fileName2);
        bool same = info1.Length == info2.Length;
        if (same)
        {
            using (FileStream fs1 = info1.OpenRead())
            using (FileStream fs2 = info2.OpenRead())
            using (BufferedStream bs1 = new BufferedStream(fs1))
            using (BufferedStream bs2 = new BufferedStream(fs2))
            {
                for (long i = 0; i < info1.Length; i++)
                {
                    if (bs1.ReadByte() != bs2.ReadByte())
                    {
                        same = false;
                        break;
                    }
                }
            }
        }

        return same;
    }