Specifications

Introduction

devolo dLAN AVpro manager

high-performance "Quality of Service" functions. Because of this, "HomePlug

AV" is the ideal medium for all Triple Play services (data, language and video ser-

vices) and for the wide range of online entertainment offered today.

You can operate "HomePlug AV / IEEE 1901" and "HomePlug 1.0" alongside

each other in the same line network. Data exchange between "HomePlug 1.0"

networks and "HomePlug AV" networks is possible here by means of a bridge.

You can create this bridge by plugging a "HomePlug 1.0" device and a "Home-

Plug AV" device into neighbouring mains sockets and connecting the two

devices to one another via an Ethernet cable.

1.1.2 Data security and radiation

The devolo dLAN devices encrypt the data transmission in accordance with the

AESpro 128 standard. This standard combines a 128-bit triple AES encryption

[AES=Advanced Encryption Standard] with a time lock when entering a new net-

work password. AESpro 128 protects your dLAN network reliably from all unau-

thorised access.

In principle, two possibilities for attack are conceivable. However, thanks to the

AESpro encryption, these will always be unsuccessful:

a) For example, a brute force attack could be launched as one way to deter-

mine the key for decrypting the data. This attack procedure systematically

tests all possible combinations of letters and numbers in the chip. Due to the

size of the keys used and the common transfer rate of a maximum of 100

Mbps ('Fast Ethernet') between chip and PC, statistically speaking, this

method of attack only has any certainty of success after about 45,000 years

on average.

b) An additional attack possibility exists in systematic interception and analysis

of the encrypted raw data. Through careful analysis of the encrypted raw

data, you can determine the type of the key used and finally also determine

the unencrypted raw data. This method cannot be used with dLAN technol-

ogy, because the chip does not output any locked data on the network inter-

face, but rather modulates the encrypted data before the output on the line.

Even if the attacker manages to get access to the modulated data, this does

not help him further, because he cannot demodulate the data.

All devolo dLAN devices fulfil the currently valid, strict EU standards and con-

form to the current EMC standards for electromagnetic radiation.