Cybersecurity

Hi There,

I wonder if any one can help me.

I want to transfer a file from one site to another over an encrypted link. I want to know if there will be any imcrease in the data that will travel on the link? For example, I want to transfer a 1 GB file from one site to another, using an encrypted link - like a VPN, will the data that will travel be the same size - 1 GB or it will be different? I know that there will be some increase in size, but I want to know the rough estimate - like 20% increase or 50% increase etc. Can someone please help?

With Kind Regards
Ahmerin

What encryption algorithm?

Hi Jim,

Encryption algorithm = 3des
Hash algorithm = Sha1

Regards
Ahmerin

It will depend on a few parameters - the bandwidth channel size, the type of encrypted link - IPSEC ? and the type of file itself - binary or ASCII. But generally, this encryption will add up tp 20% overhead, average of 10%.
If it's a single large file, probably you won't see a big overhead in the total transfer time and network bandwidth increase. If it were many small files in terms of big concurrency, then the overhead may become more visible, for, let's say, end users.

Hi Sysgate,

Thanks for your input. I also thought that the effect on one big file will be smaller than smaller files.

Thanks once again for your time and help.

Regards
Ahmerin