> 1) Are there quantum encryption algorithms that we will use on quantum
> computers to prevent quantum cryptanalysis? Not just key
> distribution; ID Quantique is commercially selling units for that
> already.
There are existing quantum encryption algorithms that require a
physical link between
- Original Message -
From: "Michael Cordover" <[EMAIL PROTECTED]>
Subject: Re: quantum chip built
John Denker wrote:
My understanding is that quantum computers cannot "easily" do anything.
Probably one of the best statements so far, certainly QC and ea
| I'm fairly ignorant of quantum computers,
I'm no expert myself. I can say a few things, but take them with a grain of
salt.
| having had the opportunity
| to see Schor lecture at a local university but unfortunately finding
| myself quickly out of my d
I'm fairly ignorant of quantum computers, having had the opportunity
to see Schor lecture at a local university but unfortunately finding
myself quickly out of my depth (I still don't understand the weird
notation they use for representing [superpositions of?] "states" in
Bell inequalities and his
| >> From what I understand simple quantum computers can easily brute-force
| >> attack RSA keys or other
| >> types of PK keys.
| >
| > My understanding is that quantum computers cannot "easily" do anything.
| >
|
| Au contraire, quantum computers can easily perform prime factoring or
| per
On Sat, 14 Jan 2006, Michael Cordover wrote:
> In order to factor a 1024
> bit modulus you'd need a 1024 bit QC. Perhaps if there were some sudden
> breakthrough it'd be a danger in a decade - but this is the same as the
> risk of a sudden classical breakthrough: low.
This is not necessarily s
> >From what I understand simple quantum computers can easily
> brute-force attack RSA keys or other types of PK keys. Is
> ECC at risk too? And are we at risk in 10, 20 or 30 years from now?
Quantum computers break RSA, cryptosystems based on discrete log
over finite fields, and cryptosyst
At 03:04 AM 1/14/2006 +1100, Michael Cordover wrote:
John Denker wrote:
[EMAIL PROTECTED] wrote:
From what I understand simple quantum computers can easily brute-force
attack RSA keys or other
types of PK keys.
My understanding is that quantum computers cannot "easily" do anything.
Au contr
Steven M. Bellovin wrote:
http://www.wired.com/news/technology/0%2c70001-0.html?tw=wn_tophead_5
They seems to have built a device which can store one qubit, isolated
from the rest of the world. They seem to be able to scale up their
technique to store many qubits, but I strongly suspect th
John Denker wrote:
[EMAIL PROTECTED] wrote:
From what I understand simple quantum computers can easily brute-force
attack RSA keys or other
types of PK keys.
My understanding is that quantum computers cannot "easily" do anything.
Au contraire, quantum computers can easily perform prime
[EMAIL PROTECTED] wrote:
From what I understand simple quantum computers can easily brute-force attack
RSA keys or other
types of PK keys.
My understanding is that quantum computers cannot "easily" do anything.
As the saying goes:
"We can factor the number 15 with quantum computers. We
TED]>
To: cryptography@metzdowd.com
Subject: quantum chip built
Date: Wed, 11 Jan 2006 11:38:52 -0500
>
> http://www.wired.com/news/technology/0%2c70001-0.html?tw=wn_tophead_5
>
> ...
>
> So, on a semiconductor chip roughly the size of a postage stamp, the
> Michigan scie
http://www.wired.com/news/technology/0%2c70001-0.html?tw=wn_tophead_5
...
So, on a semiconductor chip roughly the size of a postage stamp, the
Michigan scientists designed and built a device known as an ion trap,
which allowed them to isolate individual charged atoms and manipulate
their quant
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