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Dagny's Desk

Dagny's Desk

Daily Archives: 20 December 2015

Prime Numbers, and how they function as the basis for securing your computer communications

20 Sunday Dec 2015

Posted by Dagny Gromer in Computers

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computer security, encryption

I stumbled on a very easy to understand article that describes how prime numbers (those evenly divisible only by themselves and 1) form the basis for secure computer communications. You’ve seen https:  vs http: in URL’s and probably know the added “s” means secure. Maybe you know that SSL means secure sockets layer, which sends and receives information in an encrypted form. And once in a while you might see a warning that a web site has a problem with its security certificate. Do you know that all this is based on the huge amount computational work needed to factor a large prime number?

Read more here: http://www.extremetech.com/extreme/219570-what-are-prime-numbers-and-why-are-they-so-vital-to-modern-life

The link above explains how all this works, without using any math.

Satan’s Holiday Letter

20 Sunday Dec 2015

Posted by Dagny Gromer in decivilization

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christmas, satans holiday letter

From Charles Hugh Smith, who somehow came across satan’s 2015 holiday letter. CHS often gets thing right, IMHO, and this letter sadly rings sort of true. http://charleshughsmith.blogspot.com/2015/12/the-devils-holiday-letter-2015.html

 

Some More Snow

20 Sunday Dec 2015

Posted by Dagny Gromer in Misc.

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prescott az, snow, winter

Some snow fell overnight in Prescott
Snowy Morning in Prescott

Malamute mix Snow out in the snow. I trust she likes this weather.
Snow in the Snow

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