- cypherpunks - lists.cpunks.org

I'll give the right answers to the right questions
by Ryan Carboni 27 Jan '18

27 Jan '18

I just skimmed through Computer Organization and Design RISC-V Edition: The Hardware Software Interface, so I'll just give you some stream of consciousness notes on a good CPU Time Stamp Counter should be virtualized. The white hat counterpart to Rutkowski's blue pill no out of order execution, or any other just in time compilation no speculative execution implicit parallelization implement major components of the operating system in hardware, Xen is only twenty megabytes which is comparable to maximum bitstream size for some FPGA arguably the only thing that needs to be implemented in silicon is the ALU, and the bus each core has multiple threads, even shadow threads invisible to root meant to handle interupts to deal with context switch delays, pipeline threads, this may be called a ready queue? if a processor can rename registers on the fly, it should be able to load processes quickly in fact this may be to some degree done with hyper threading, although unsure why it is apparently limited to two threads per CPU, although it may require multiple instruction decoding buffers, " It seems like the P4 flushes its micro-op cache as part of handling an interrupt" https://wiki.osdev.org/Context_Switching although this still wouldn't prevent having two threads per CPU, and at least one standby thread, particularly if a branch prediction buffer is removed eDRAM cache buffer scheduled threads, and to partially virtualize L1 caches for them. maybe no shared caches, everything must be copied into L1 first. the best possible compromise for single thread performance is to allow the OS to flag a thread with a high priority, two threads with unequal priority on a core will mean the higher priority thread will run until its allotted cycles run out or there is a stall, creating de facto coarse multithreading, although this seems unlikely to be needed apparently dynamic power use has been reducing, so speculative execution is not as big of a power hog as increasing clock speed copy on write should be done in a way to avoid any possible race condition, if multiple processes are aware of data before it is marked copy on write, it is being done wrong incoherent data should be avoided anything in complexity that exceeds the short term memory of the smartest programmers should be avoided branch prediction apparently involves flushing instructions halfway executed? ideally flushing is constant time to avoid side channels, which would make it easier as well, although more hardware intensive overall illogical and detrimentral design decisions have led to the erosion of computer security. emphasis on single thread performance neglects modern computing design obviously branch prediction or any other optimization should be toggled for cryptography https://wiki.osdev.org/Context_Switching There are many ways of performing a context switch. The x86 CPU provides a way of doing it completely in hardware, but for performance and portability reasons most modern OS's do context switches in software. http://blog.erratasec.com/2015/03/x86-is-high-level-language.html The upshot is this: Intel's x86 is a high-level language. Coding everything up according to Agner Fog's instruction timings still won't produce the predictable, constant-time code you are looking for. There may be some solutions, like using CMOV, but it will take research. --- research... hmmm... execute and then check or check then execute? an interesting meme, research, research, research research and then implement an idea or implement an idea and then research it?

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Re: I'll give the right answers to the right questions
by g2s 26 Jan '18

26 Jan '18

I fathomed about 30% of that. But it's a valuable 30%. Thanks. Rr null

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Re: [Cryptography] Perth Mint to back crypto-currency with gold
by grarpamp 25 Jan '18

25 Jan '18

> http://www.abc.net.au/news/2018-01-24/cryptocurrency-backed-by-gold-being-d… Typical investors happy with their old school will simply buy into allocated storage options or other reasonably efficient and accessible pricing and pooling mechanisms such as... https://finance.google.com/finance?q=gld Unlike most cryptos with mathmatically known thus predictable emission curves, anything mined and stockpiled from the Earth has additional factors that apply, on top of all the digital ones. > to entice investors back to precious metals. While they may have cobbled together a way of making medieval carriage of virtual metals in digital sacks handy again, they're imparting a whole new layer of trust, regulatory, verification, redemption, etc questions upon the metals. Then comes relative simplicity... https://finance.google.com/finance?q=gbtc Which really begs the question of "why they bother", now that pure cryptocurencies are out and have equally suitable / comparable pricing, utilization and access models. The answer is likely that the fake "precious" metals and sparkly rocks industries are as scared of losing power and control, and becoming extinct as the banks and governments are. Thus they're proffering up such meetoo coins in an effort to stay relavant up against the global awakening. https://www.youtube.com/watch?v=N5kWu1ifBGU https://www.youtube.com/results?sp=CAM%253D&search_query=diamonds+scam https://www.youtube.com/results?sp=CAM%253D&search_query=blood+diamonds+doc… Which will further fail because it's just not what the kids in school are believing in and using anymore... https://www.youtube.com/watch?v=NvO3hMgWT-0 https://www.youtube.com/watch?v=3VnTko4YdPE https://www.youtube.com/watch?v=nqdv6Ad9Nt4 https://www.youtube.com/watch?v=Hh-O7er_X2c https://www.youtube.com/watch?v=rT4ThQ55SD8 https://www.youtube.com/watch?v=PdsjULVxuhU https://www.youtube.com/watch?v=k4FNmp3mKp4 Wait till the 10 year anniversary of cryptocurrency... massive worldwide inputs and adoption will happen after that. Everyone loves to quote market cap, which takes no notice of historical inputs. Another way to calculate "intrinsic value" of say, BTC, is to... (sum (each block quantity created times the market price at creation time)) divided by the quantity of coins extant. [Further adjusted for xflation of the fiat reference over the period to the present day.] Even assuming fiat was flat, no one appears to have published this simple integration... you should try it and see what number you get :)

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News Dump
by grarpamp 25 Jan '18

25 Jan '18

NSA Deletes “Honesty” and “Openness” From Core Values Statement on Their Site (theintercept.com) DuckDuckGo adds tracker blocking to help curb the wider surveillance web (techcrunch.com) Dr. King was wiretapped by the FBI for the purpose of neutralizing him as an effective civil rights leader and on the pretext that he was under communist influence. Researchers found that anyone who controls a WhatsApp server (sophisticated hackers, a government coercing the company) can insert themselves into any group chat, undermining WhatsApp’s promises of end-to-end encryption. (wired.com) US customs asking Americans to unlock devices is on the rise, refusing could impound your phone for 5 days (washingtonpost.com) Apple Is Blocking an App That Detects Net Neutrality Violations From the App Store: Apple told a university professor his app "has no direct benefits to the user." (motherboard.vice.com) FBI chief calls unbreakable encryption 'urgent public safety issue' (reuters.com) Harvard Study Shows Why Big Telecom Is Terrified of Community-Run Broadband: These ISPs Are Cheaper and Better. (motherboard.vice.com) Amazon turns over record amount of customer data to US authorities (zdnet.com) Twitter Security Engineer: "What we can do is terrifying. We have full access to every single person's account, every single direct message, deleted direct messages, deleted tweets. I can tell you who exactly logged in from where, what username and password, when they changed their password." (inquisitr.com) Here are the 256 representatives that just voted to reauthorize and expand unconstitutional NSA spying (medium.com) NSA deleted surveillance data it pledged to preserve (politico.com) Washington sues Motel 6 for giving guest information to US: "Attorney General Bob Ferguson said motel employees divulged the names,birthdates,driver's license numbers,license plate numbers and room numbers of at least 9,150 guests to U.S. Immigration and Customs Enforcement agents without a warrant" (apnews.com) Is Facebook listening and creating conversation-based ads on Instagram? I think so, and I put it to the test using WireShark. Misleading - Trump can vetoDemocrats are just one vote shy of restoring net neutrality (engadget.com) Vietnam unveils 10,000-strong cyber unit to combat 'wrong views' (reuters.com) Dem Support For Trump Surveillance Powers Proves “Resistance” Is Bullshit - Caitlin Johnstone (medium.com) VideoGoogle Opt Out Feature Lets Users Protect Privacy By Moving To Remote Village (Satire) (youtube.com) Old newsNow sites can fingerprint you online even when you use multiple browsers (arstechnica.com) Don't expect privacy at Disney - The company is getting rid of all “do not disturb” door signs and requiring Disney employees to enter each hotel room once a day. (cbs6albany.com) Western Digital My Cloud drives have a built-in backdoor (twitter.com) Americans should have more control over their data (bloomberg.com) Skype leaks your contacts If you've got Nvidia drivers on your computer they come with telemetry

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UFOs: ZUMA Top Secret Satellite, Black Knight, Messages
by grarpamp 25 Jan '18

25 Jan '18

https://www.youtube.com/results?search_query=zuma+secret+satellite

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Fwd: [Cryptography] Liar Paradox Redux
by grarpamp 25 Jan '18

25 Jan '18

---------- Forwarded message ---------- From: Henry Baker <hbaker1(a)pipeline.com> Date: Wed, Jan 24, 2018 at 5:46 PM Subject: [Cryptography] Liar Paradox Redux To: cryptography(a)metzdowd.com FYI -- https://slashdot.org/story/18/01/24/1555258/nsa-deletes-honesty-and-opennes… NSA Deletes 'Honesty' and 'Openness' From Core Values (theintercept.com) Posted by msmash on Wednesday January 24, 2018 @10:55AM from the closer-look dept. An anonymous shares a report: The National Security Agency maintains a page on its website that outlines its mission statement. But earlier this month, the agency made a discreet change: It removed "honesty" as its top priority. Since at least May 2016, the surveillance agency had featured honesty as the first of four "core values" listed on NSA.gov, alongside "respect for the law," "integrity," and "transparency." The agency vowed on the site to "be truthful with each other." On January 12, however, the NSA removed the mission statement page -- which can still be viewed through the Internet Archive -- and replaced it with a new version. Now, the parts about honesty and the pledge to be truthful have been deleted. The agency's new top value is "commitment to service," which it says means "excellence in the pursuit of our critical mission." Those are not the only striking alterations. In its old core values, the NSA explained that it would strive to be deserving of the "gre at trust" placed in it by national leaders and American citizens. It said that it would "honor the public's need for openness." But those phrases are now gone; all references to "trust," "honor," and "openness" have disappeared. https://theintercept.com/2018/01/24/nsa-core-values-honesty-deleted/ Thomas Groves, a spokesperson for the agency, said: "It's nothing more than a website update, that's all it is." ----- Is it just me, or are logicians Bertrand Russell and Kurt Goedel rolling in their graves? A stopped clock is right twice a day... _______________________________________________ The cryptography mailing list cryptography(a)metzdowd.com http://www.metzdowd.com/mailman/listinfo/cryptography

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Cryptocurrency: Erik Finman ... Gets Crypto
by grarpamp 25 Jan '18

25 Jan '18

https://www.youtube.com/results?sp=CAM%253D&search_query=erik+finman https://twitter.com/erikfinman Kids have cypherpunk in their blood :) Become a mentor.

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COINTELPRO: Subversion of the Activist Community
by grarpamp 24 Jan '18

24 Jan '18

https://www.youtube.com/watch?v=sk6q4JFnUwQ Skip 25 min.

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Republicans hope to release 'jaw-dropping' memo on surveillance abuses
by jim bell 23 Jan '18

23 Jan '18

House Republicans are hopeful that a four-page memo allegedly containing "jaw-dropping" revelations about U.S. government surveillance abuses will soon be made public. http://www.foxnews.com/politics/2018/01/22/republicans-hope-to-release-jaw-… Sent via the Fox News app for Android. Download the app here: https://play.google.com/store/apps/details?id=com.foxnews.android

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NSA: Deletes Evidence, Records All Internet, Voice Print Everyone, Fake Congress
by grarpamp 23 Jan '18

23 Jan '18

NSA Deletes Evidence to Cover Ass [Prez ass too], Claims Oopsie https://www.politico.com/story/2018/01/19/nsa-deletes-surveillance-data-351… You're all voiceprinted https://theintercept.com/2018/01/19/voice-recognition-technology-nsa/ https://www.documentcloud.org/documents/4351987-2006-01-04-Technology-That-… Congress to Americans, as usual, We Don't Give a Fuck https://twitter.com/emptywheel/status/954396483335475200 https://www.emptywheel.net/2018/01/19/steve-king-just-voted-to-subject-amer… Says the TOP SECRET owns us too... https://theintercept.com/2018/01/22/the-top-republican-warns-under-new-spen… uld-expend-funds-as-it-sees-fit/ https://theintercept.com/2017/12/04/trump-white-house-weighing-plans-for-pr… es/ https://theintercept.com/2018/01/22/blowback-cia-drones-middle-east/ The inescapable truth for my six blowback films is that you cannot fuck people, and then expect no pushback, no retaliation, no blowback. Nor can you cynically arm or fund groups to fight your "official enemy" and then assume those groups won't one day turn on you or your allies. Actions have consequences; actions, to quote Newton, have equal and opposite reactions. Crippled old mental propped prepped puppet fucks... "the veteran senator, at 80, has struggled cognitively in recent months" "realized he was voting the wrong way and then changed his vote" Lol. The US is doomed. https://twitter.com/JakeLaperruque https://twitter.com/emptywheel https://twitter.com/Thomas_Drake1 https://twitter.com/JesselynRadack https://twitter.com/fightfortheftr https://twitter.com/Snowden http://time.com/5106039/daniel-ellsberg-nuclear-war-north-korea/ Voiceprint of a Rebel... https://www.nytimes.com/2018/01/21/world/americas/venezuela-oscar-perez-nic… Push back.

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