Fritz Kasslatter, Siemens AG Östereich CT T CEE - Lakeside ...
Fritz Kasslatter, Siemens AG Östereich CT T CEE - Lakeside ...
Fritz Kasslatter, Siemens AG Östereich CT T CEE - Lakeside ...
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vehicle-to-X communication<br />
Security status (USA, Europe)<br />
Functional requirements<br />
trustful communication<br />
anonymity of network access<br />
Non traceability<br />
temporary<br />
IP, MAC address<br />
Key management<br />
online renewal of keys<br />
revocation list<br />
Performance requirements<br />
fast cryptographic operation<br />
(elliptic curves)<br />
small security certificates<br />
(on air)<br />
Real Time security needs a<br />
Crypto-Coprocessor support<br />
~ 2,5 mSec / crypt. operation<br />
private key + public key<br />
Cryptographic<br />
computation<br />
MPC21C<br />
embedded PC<br />
(500 MHz)<br />
software solution<br />
Routerboard<br />
MIPS 32<br />
( 400MHz)<br />
software solution<br />
Signature 37 ms 120 ms<br />
Validation 75 ms<br />
Sending of message:<br />
1 x Signature<br />
Receiving of message:<br />
1 x Message validation<br />
1 x Certificate validation<br />
Total:<br />
message message<br />
message<br />
sign message<br />
(private key)<br />
Hardware Accelerator<br />
! not yet validated<br />
hardware solution<br />
10/22/2010 17<br />
<strong>Fritz</strong> <strong>Kasslatter</strong>, <strong>Siemens</strong> <strong>AG</strong> <strong>Östereich</strong> <strong>CT</strong> T <strong>CEE</strong> AT<br />
37<br />
75<br />
75<br />
--------------<br />
187 ms<br />
message<br />
send message<br />
(public key)<br />
180 ms<br />
120<br />
180<br />
180<br />
--------------<br />
480 ms<br />
Verify message<br />
(public key)<br />
2,5 ms<br />
2,5 ms<br />
2,5<br />
message<br />
2,5<br />
2,5<br />
---------<br />
7,5 ms
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