System.Security.Cryptography.DerEncoder.ConcatenateArrays C# (CSharp) Метод

        private static byte[] ConcatenateArrays(byte[][][] segments)
        {
            int length = 0;

            foreach (byte[][] middleSegments in segments)
            {
                foreach (byte[] segment in middleSegments)
                {
                    length += segment.Length;
                }
            }

            byte[] concatenated = new byte[length];

            int offset = 0;

            foreach (byte[][] middleSegments in segments)
            {
                foreach (byte[] segment in middleSegments)
                {
                    Buffer.BlockCopy(segment, 0, concatenated, offset, segment.Length);
                    offset += segment.Length;
                }
            }

            return concatenated;
        }
    }