Re: [MEXT] Energy consumption attacks

[Pars Mutaf <[e-mail]>]

Some details that may not be obvious:

The victim consumes energy for:

- Receiving the messages (continuously waking up from sleep mode)
- Processing them and preparing reply packets (L2 and L3)
- Sending replies (L2 ACKs and upper layer replies e.g. SIP or TCP replies)

Sending replies especially consumes more energy. It was shown that in 802.11
sending 1 bit over the air consumes as much as executing 1,000 CPU
instructions.

Regards,

Pars


On Mon, Mar 21, 2011 at 11:43 AM, Pars Mutaf <[e-mail]> wrote:

> Hello,
>
> I was wondering if solutions to energy consumption attacks on battery
> powered mobile hosts would be of interest to IETF Mobile IPv6 community.
>
> The attack consists of sending frequent request packets e.g. SIP INVITE or
> TCP SYN to a victim's home address.
>
> For example, experiments showed that the battery of a mobile phone with
> 802.11 access can be remotely consumed in 3 hours (full battery). Attacks on
> phones using an outdoor technology would result in more energy consumption
> because of the longer distance to the base station.
>
> The victim becomes unusable.
>
> Regards,
>
> Pars
>