jdashiel at panix.com
Sat Feb 4 17:03:10 UTC 2017
One time pad ciphers can be very useful in that the page in the pad has
a different matrix of characters on it for each day in a month. Some
places in the matrices are boxed which forces a space in whatever is
written. You take the character you would write and add it to the
character in that space reached by what you write and the addition
becomes what is written and is one of the characters in the character
set. During World War II. these ciphers got used and were not broken by
the Nazis and weren't possible to compromise by interrogation either.
It was the Special Operations Executive that was famous for using
one-time pad ciphers and n.l.s. has a book "between silk and cyanide" by
Leo Marx who trained many spies in their use. The Germans had used
one-time pad ciphers before but what Leo Marx did with them was to set
character distribution rules for each page and put the box into effect
and had those to break up cipher strings and make messages more
difficult to crack.
On Sat, 4 Feb 2017, Eric Oyen wrote:
> Date: Sat, 4 Feb 2017 11:13:04
> From: Eric Oyen <eric.oyen at icloud.com>
> Reply-To: Linux for blind general discussion <blinux-list at redhat.com>
> To: Linux for blind general discussion <blinux-list at redhat.com>
> Subject: Re: frustrate shouldservers
> just for shits and grins (pardon my language folks), w
> On Feb 4, 2017, at 5:01 AM, Jude DaShiell wrote:
>> It should be interesting to see if google now has a page available for the original British braille system by now.hile I was up at the colorado center for the blind, I proposed an idea of encrypted braille. the idea was so nasty that the braille instructor got a migraine from even thinking about it! :) The idea was to invert the state of each dot. this is a simple substitution type of encryption.
> another good substitution type would be using a matrix with a known code word and the matrix itself (consisting of a horizontal line of numbers and letters in sequence, and a vertical line on the left side also of in sequence you would use a code word at the top and then point to each letter on the H and V and then go to the letter or number it indicates in the matrix. Mind you, this is a pen/paper type of encrypting that would be hard to break unless you know the code word and know the table layout. Then you can get real crazy by assigning number values to each braille cell (such as A = 1000000, b = 120000 and so on). This would allow you to add a second layer of encryption.
> THis may be a bit extravagant when it comes to keeping your passwords safe and usable by you, but it certainly would frustrate someone seeking to breach your machine with physical access.
>> On Sat, 4 Feb 2017, Kyle wrote:
>>> Date: Sat, 4 Feb 2017 06:47:19
>>> From: Kyle <kyle4jesus at gmail.com>
>>> Reply-To: Linux for blind general discussion <blinux-list at redhat.com>
>>> To: blinux-list at redhat.com
>>> Subject: Re: frustrate shouldservers
>>> Sadly, Google is the password cracker's best friend. It can teach the person who steals that card with the braille password on it all he or she needs to know about how to read it. Other ways of writing down the password may be used, including mnemonics, but if a mnemonic is written well enough for me to remember a random password, chances are it's also good enough for someone else to use to gain unauthorized access as well. That said, if you can hold the mnemonic you use to remember a random password in your head without writing it down, and if the mnemonic is good enough to allow you to enter the password correctly every time you need it, then a computer generated password is probably best, as the only point at which you need to worry about compromise is the time between its generation and your commitment to memory.
>>> Sent from the alien space craft that crash landed and stranded me here
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