the puff adder: actually just spicy xor and some hot air

#xor
#logicGate
#joke

Logic Syllabus • Discussion 1
• https://inquiryintoinquiry.com/2023/06/02/logic-syllabus-discussion-1/

Re: Logic Syllabus ( https://inquiryintoinquiry.com/logic-syllabus/ )
Re: Laws of Form ( https://groups.io/g/lawsofform/topic/logic_syllabus/99218507 )
❝_❞ John Mingers ( https://groups.io/g/lawsofform/message/2326 )

❝In a previous post you mentioned the minimal negation operator. Is there also the converse of this, i.e. an operator which is true when exactly one of its arguments is true? Or is this just XOR?❞

Yes, the “just one true” operator is a very handy tool. We discussed it earlier under the headings of “genus and species relations” or “radio button logic”. Viewed as a venn diagram it describes a partition of the universe of discourse into mutually exclusive and exhaustive regions.

Reading \(\texttt{(} x_1 \texttt{,} \ldots \texttt{,} x_m \texttt{)}\) to mean just one of \(x_1, \ldots, x_m\) is false, the form \(\texttt{((} x_1 \texttt{),} \ldots \texttt{,(} x_m \texttt{))}\) means just one of \(x_1, \ldots, x_m\) is true.

For two logical variables, though, the cases “condense” or “degenerate” and saying “just one true” is the same thing as saying “just one false”.

\[\texttt{((} x_1 \texttt{),(} x_2 \texttt{))} = \texttt{(} x_1 \texttt{,} x_2 \texttt{)} = x_1 + x_2 = \textsc{xor} (x_1, x_2).\]

There's more information on the following pages.

Minimal Negation Operators
• https://oeis.org/wiki/Minimal_negation_operator

Related Truth Tables
• https://oeis.org/wiki/Minimal_negation_operator#Truth_tables

Genus, Species, Pie Charts, Radio Buttons
• https://inquiryintoinquiry.com/2021/11/10/genus-species-pie-charts-radio-buttons-1/

Related Discussions
• https://inquiryintoinquiry.com/?s=Radio+Buttons

#Logic #LogicSyllabus #BooleanDomain #BooleanFunction #BooleanValuedFunction
#Peirce #LogicalGraph #MinimalNegationOperator #ExclusiveDisjunction #XOR
#CactusLanguage #PropositionalCalculus #RadioButtonLogic #TruthTable

Logic Syllabus • 2
• https://inquiryintoinquiry.com/logic-syllabus/

Logical Operators
• https://oeis.org/wiki/Logic_Syllabus#Logical_operators

Logical Negation • https://oeis.org/wiki/Logical_negation
Logical NAND • https://oeis.org/wiki/Logical_NAND
Logical NNOR • https://oeis.org/wiki/Logical_NNOR
Logical Conjunction • https://oeis.org/wiki/Logical_conjunction
Logical Disjunction • https://oeis.org/wiki/Logical_disjunction
Exclusive Disjunction • https://oeis.org/wiki/Exclusive_disjunction
Logical Implication • https://oeis.org/wiki/Logical_implication
Logical Equality • https://oeis.org/wiki/Logical_equality

#Logic #LogicSyllabus #LogicalOperator #LogicalConnective
#Negation #NAND #NNOR #LogicalConjunction #LogicalDisjunction
#ExclusiveDisjunction #XOR #LogicalImplication #LogicalEquality

Basically, since RC4 is a stream cipher, it outputs a byte at a time, and XORs that with the plaintext to get the ciphertext. Since XOR is Associative (https://en.wikipedia.org/wiki/XOR_swap_algorithm#Proof_of_correctness) you can also XOR the ciphertext with the plaintext to get the output of the RC4 function. You can then simply try keys until you get the correct keystream output.
#cryptography #hacking #XOR

Basically, since RC4 is a stream cipher, it outputs a byte at a time, and XORs that with the plaintext to get the ciphertext. Since XOR is Associative (https://en.wikipedia.org/wiki/XOR_swap_algorithm#Proof_of_correctness) you can also XOR the ciphertext with the plaintext to get the output of the RC4 function. You can then simply try keys until you get the correct keystream output.
#cryptography #hacking #XOR

📬 Lesetipps: Wurde Windows zur Spyware? Was passiert, wenn …?
#Cyberangriff #Datenschutz #Empfehlungen #Gaming #Hacking #Hintergrundberichte #Internet #KünstlicheIntelligenz #Kurios #Lesetipps #Malware #Podcast #RetroComputing #ReverseEngineering #Videos #Bing #ChatGPT #coding #EPaper #Freibier #github #hideme #party #todoist #XOR https://tarnkappe.info/lesetipps/lesetipps-wurde-windows-zur-spyware-was-passiert-wenn-264796.html

Logic puzzle 101: You got a strange message that does not make any sense. Can you decypher it with the following logic puzzle?

https://luckyresistor.me/2023/02/02/logic-gates-puzzle-101/

#puzzle #logic #gate #flipflop #xor #xnor #dlatch #lfsr #circuitart #circuit

#Op costs in #CPU #cycles (from <1 for #XOR to 1M for #Thread #ContextSwitch) http://ithare.com/infographics-operation-costs-in-cpu-clock-cycles/

RT three_cube: Hacker Basics: The Basics of XOR-ing #xor #hackerbasics #cybersecurity #cyberwarrior

https://hackers-arise.com/basics-of-xoring

How should we abbreviate the Negated eXclusive OR operation – #XNOR or #NeXOR?

#xor #cs #ComputerScience #programming #informatik

Referenced link: https://hackernoon.com/the-defi-writing-contest-by-sora-and-hackernoon
Discuss on https://discu.eu/q/https://hackernoon.com/the-defi-writing-contest-by-sora-and-hackernoon

Originally posted by HackerNoon | Learn Any Technology / @hackernoon@twitter.com: https://twitter.com/PSWAPCommunity/status/1542165734746374147#m

RT by @hackernoon: Get ready for @sora_xor's & @hackernoon's writing competition, starting 1st of July 🤓

30,000 XSTUSD, 160 $DEO & 10 #NFTs total prize pool !

#XOR #KSM #DOT #DeFi
https://hackernoon.com/the-defi-writing-contest-by-sora-and-hackernoon

Referenced link: https://hackernoon.com/why-is-xor-the-perfect-cipher
Discuss on https://discu.eu/q/https://hackernoon.com/why-is-xor-the-perfect-cipher

Originally posted by HackerNoon | Will NOT Insert LINKS in HN stories / @hackernoon@twitter.com: https://twitter.com/hackernoon/status/1532512422099025924#m

"Why Is XOR the Perfect Cipher?" by @wagslane https://hackernoon.com/why-is-xor-the-perfect-cipher #cryptography #xor

Referenced link: https://hackernoon.com/why-is-xor-the-perfect-cipher
Discuss on https://discu.eu/q/https://hackernoon.com/why-is-xor-the-perfect-cipher

Originally posted by HackerNoon | Will NOT Insert LINKS in HN stories / @hackernoon@twitter.com: https://twitter.com/hackernoon/status/1528888560056733697#m

"Why Is XOR the Perfect Cipher?" by @wagslane https://hackernoon.com/why-is-xor-the-perfect-cipher #cryptography #xor

RT @bitcoinheiros
Conheça a SEED XOR da @COLDCARDwallet, uma maneira para armazenar sua seed em duas ou mais partes que parecem e se comportam como o segredo original.

https://youtu.be/sUZ1oHgLCzA

#bitcoin #btc #bitcoinheiros #seguranca #seed #xor #coldcard #coinkite

RT @bitcoinheiros
Conheça a SEED XOR da @COLDCARDwallet, uma maneira para armazenar sua seed em duas ou mais partes que parecem e se comportam como o segredo original.

https://youtu.be/sUZ1oHgLCzA

#bitcoin #btc #bitcoinheiros #seguranca #seed #xor #coldcard #coinkite

Seems #blitz #basic for #amiga doesn't have an exclusive or #xor #eor numeric operator?? This makes implementing #CRC harder than necessary, needing inline #m68k #assembly for at least some of it:
```
Function XOR.b{x.b, y.b}
GetReg d0, x.b
GetReg d1, y.b
eor.b d1, d0
PutReg d0, z.b
Function Return z.b
EndFunction
```
(untested)

http://www.sunshine2k.de/articles/coding/crc/understanding_crc.html links to http://users.ece.cmu.edu/~koopman/roses/dsn04/koopman04_crc_poly_embedded.pdf which claims 0xA6 is a good 8-bit CRC polynomial for large input lengths, though it seems that is the most significant 8 bits (instead of the least significant 8 bits), with implicit trailing 1 (instead of implicit leading 1), to make it compatible with the first article I think I need rotate the byte 1 bit to give 0x4D.