[Cryptography] Smart electricity meters can be dangerously insecure, warns expert
Peter Gutmann
pgut001 at cs.auckland.ac.nz
Mon Jan 2 00:22:28 EST 2017
Cat Okita <cat at reptiles.org> writes:
>if you look at the data sheets for smart meters (eg:
>http://sensus.com/products/icona/), remote service connect/disconnect is one
>of the features.
Ugh, so it is. For people who don't want to click their way through all the
links, the data sheet for the iConA (Gen 4) Electric Meter says:
Remote Disconnect
• iConA type iSA4 - Forms 1S-RD, 2S-RD, 12S-RD, 25S-RD
• 2-Pole, single-throw
• Magnetic latching
• Rating: 200 A, 240 VAC, 60Hz, PF 0.7/0.8 lagging
• Endurance: 5000 cycles, 200 A, 240 VAC, 60 Hz,
PF 0.7/0.8 lagging and 25000 cycles at no load
• Overload: 50 OPS, 300 A, 240 VAC, 60 Hz, PF 1.0
• Current Withstand: Per IEC 1036, ANSI C12.1:7,000 A
Peak (5,000 Amps rms) 240 VAC, 60 Hz,
for 6 cycles at 0.7/0.8 PF with normal operation after
exposure; 12,000 Amps rms for 4 cycles with fail safe
conditions after exposure
Most of the models (from that line) are advertised with a remote disconnect
option.
So you've got a mass of more or less insecure devices for which you could
create the electrical equivalent of a water hammer...
Peter.
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