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new idea for random number generation
- Subject: new idea for random number generation
- From: jdb10987 at yahoo.com (jim bell)
- Date: Mon, 25 Sep 2017 19:07:30 +0000 (UTC)
- In-reply-to: <[email protected]>
- References: <CAMjeLr_MUhL-Q89DJHx6UrBjsHjzWd2QGXYjKatYXbj=Aw3Z-A@mail.gmail.com> <[email protected]> <CAMjeLr8mUFbabJsjuRAnesxQZ-0_hYtsLXK4UnW+kOQWRm0YTw@mail.gmail.com> <[email protected]> <CAMjeLr_pMmxennCo5Dy3VLJFD9VLN=p544hv7OWkik78XTsORg@mail.gmail.com> <[email protected]> <CAMjeLr9maCDSwnBK-wfXG=ZPhQhdovLjmwa6d2TFDHspktW-hw@mail.gmail.com> <[email protected]> <[email protected]>
On Monday, September 25, 2017, 7:48:23 AM PDT, Marina Brown <catskillmarina at gmail.com> wrote:
On 09/25/2017 02:38 AM, jim bell wrote:
> On Sunday, September 24, 2017, 3:25:10 PM PDT, \0xDynamite
> <dreamingforward at gmail.com> wrote:
>
>
> On 8/4/17, jim bell <jdb10987 at yahoo.com <mailto:jdb10987 at yahoo.com>> wrote:
>>> "Vernam cipher"
>
>
>>YES! That is the cipher. I can't believe I forgot the name of it.
> Geez, I'm just re-realizing all of my undergrad training.
>
>
>>AFAICT, it is UNBREAKABLE if the keysize is at least half the size of
> your plaintext.
>>Marxos
>
>
>
>
> My understanding is that the keysize ought to be as long as the message
> to be encrypted. Â
>
> And yes, it is unbreakable... Â UNLESS you try to reuse the keys!!!
> Â Google-search the word "Venona" to learn more.
>
> Â Â Â Â Â Â Â Jim Bell
>Very very easy to implement too, though getting quality key material is
a bit of a hassle.
75 years ago, that was true. Â Today, not. Â A year ago, I saw what looked like a good implementation of a random-number generator chip. Â This might have been it: Â Â Â http://www.fdk.com/cyber-e/pi_ic_rpg100.html
Ã? 250 kbps is plenty for many applications, especially since the generator could run continuously, with the output stored away and used as needed. Â
>I have considered filming rough water then taking the low bits and
repacking them.
In a continuously windy area, a camera aimed at a tree with leaves would work, too. Â
>I wonder if low bits from the sounds in a chicken coop would work too.
"Cluck you!!" Â Â Â Â Â B^)Â Â Â Â Â Â Â Â Â Â Â Â Â Jim Bell
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