Early JWE encryption algortihm explorations

  Chacha derived AEAD algorithms in JSON Object Signing and Encryption
                                 (JOSE)
                     draft-amringer-jose-chacha-02
https://datatracker.ietf.org/doc/html/draft-amringer-jose-chacha-02

https://github.com/decentralized-identity/didcomm-messaging/issues/187

https://github.com/panva/jose-chacha/issues/1

https://pkg.go.dev/github.com/hyperledger/aries-framework-go/pkg/crypto/tinkcrypto

https://www.googlecloudcommunity.com/gc/Apigee/How-to-decode-the-encrypted-JWE-token-using-the-ECDH-ES-A128KW/m-p/46776

How to connect your android device on Linux

 https://www.howtoforge.com/tutorial/how-to-connect-your-android-device-on-linux/

Career worries (originally posted in the Veramo Discord and PM) ... I'm adding it to my blog in case I meet a magic person who wants to talk rather than walk

Silly LinkedIN message DM:

On[e] advantage you seem to have is San Francisco. It has a high concentration of capital both intellectual and otherwise. I wish fate would have left me there, but alas not. It has been an uphill battle for me ever since I became interested in late 2011 [referencing stuff like this http://adistributedeconomy.blogspot.com/2012/]. Lots of going it alone and fighting my own thoughts as well as the well-meaning naysayer. Is there anything that you read when you get discouraged? Is there anything that helps you build more courage? Find where the compass points? Faith in God or the Universe?  I'm looking into Thinking, Fast and Slow and Principles by Ray Dalio.
Well anyway, I don't want to take too much of your time. I'll be in touch later. I'm not 100% sure you were into the Category Theory explorations. You did leave your e-mail, but you also didn't stay till the end. I made a note of who did, but I can keep you in the loop because to my knowledge Ryan is still up for it. How this plays out I have no idea , but he is incredibly competent and I would be less willing to scratch this itch it I didn't have his friendship and generosity.  
 
 Well anyway, Feliz Navidad.

---------------------
Silly LinkedIN message DM:

intellectual talent is a hard thing to gauge..there is talent here..but it is expressed in the same patterns of behavior due to the job options ..maybe from my own biased perspective it seems like every time I see a new startup's website I always see San Francisco written on the bottom.


-------------------------------------

Veramo Discord (because I'm overly transparent):

I went to a meetup last night and there were recruiters sponsoring it . They were fine. I talked with them to figure out what they were about. Internal emotion before was crazy, as if I was dissatisfied that I got a lot of personal satisfaction from trying out interesting problems that few were doing but I wasn't making money with it. But then my "act of courage" may have had something to do with me not sleeping last night as if I drank caffeine too late. Maybe I did. I am not sure. I told someone privately that I was more the type of person to pursue something interesting and wind up working in surprising place like Vienna (and have it not work out) than take a bunch of tests and get a job. The conversation then evolved to Deep Work (iirc) which after looking up is just sustained focus on a task . I know I can focus on task for a prolonged period as I may have proven with my PR but it is like my mind and body have to be aligned. I cannot do a good job deceiving this because it flows, almost at a spiritual level. I'm going to stop beating myself up for not buying 2000ETH for ~$600.0 IRC, oh you could have had more cushion!, because I know I will vigilantly stay on mission and drive my finances into the ground before I stray from what I want to see in the world.

That said, I may do more action/and or reflection. Apologies if this is off scope.

More information about me can be found: http://bshambaugh.org/ . I believe only the GitHub is up to date.

I probably should just get back to work. I realize that what I am doing now does not match the original degree that I went to college for. I looked at the website for these recruiters and realized that what I am doing might be considered Electrical Engineering. I have a B.S. and M.S. in Chemical Engineering, which except for about 8 months as an Adjunct Chemistry Professor I never really pursued a degree with. I largely abandoned formal education many years ago and learn from people in the hobbyist and maker communities. Since these postings are not for my degree I look at them, but think that they are something that I realistically could not be considered for.

I really don't know if you can just build a project and jump in the industry that way. Either it helps you get a job or build a product that can be sold. As far as the need to be a professional engineer by passing the FE exam, working for 4 years at some company, then getting licensed. I don't know about that. (edit for blog post: I find job descriptions like that attractive, but then I shrink back realizing I have the wrong papers). I see people selling stuff on https://www.tindie.com/ all the time, so there must be nothing illegal about doing your own engineering work and then selling it. Maybe it is called something other than engineering, because some say you can only call yourself an engineer if you are licensed. I've tried talking to my university, but I've found the usual experience is that I get tossed from person to person with no real answer. Then there is the story of things getting a little messed up in college, which I think in hindsight ,would have been solved if I just pumped more of my own or loaned funds into coursework. Strong arm things. I think the real answer is just start over at some junior college. It may have been wise to do that when I was an Adjunct Chemistry Professor because I was up there anyway.

Added for this blog post:
I'll add this this that the job in Vienna didn't work out because I had some blind spots in my knowledge. I thought I knew more about Java (it turns out I had an abbreviated book called Java in 24 hours which didn't cover stuff like interfaces and generics and I didn't get that from other programming language knowledge) than I did and I mistook the applicability of my P2P economy writings like http://bshambaugh.org/Master_17.html to the position even though this sort of activity caused me to land the position.

Steps to follow to create and use a local npm module:

 Steps to follow to create and use a local npm module:

Create a directory:

mkdir npm-test

Create a package.json file in the directory:

cd npm-test
npm init

follow the steps at the prompt, keep the defalts, maybe add a description and author

If index.js is the entry point listed in package.json (by default, e.g "main":"index.js", create the index.js file:

touch index.js

Edit index.js with your favorite text editor. I am using vim. :

vim index.js

Add the following content within vim as a test :

exports.printMsg = function() {
     console.log("This is a message from the demo package.");

}

Create a package with the npm file:

npm pack

unzip the tarball:

tar xzvf test-npm-1.0.0.tgz

In the unzipped package, link to the global package namespace:

cd package
npm link

Create a file folder to call the new npm package:

mkdir test-folder
cd test-folder

Make the npm package available:

npm link test-npm


Use the npm package in a test file:

touch testfile.ts
vim testfile.ts
add to vim: " import * as testy  from 'test-npm'
console.log(testy.printMsg) "
convert to js: tsc testfile.ts
run with node: node testfile.js

How to reverse the link:

Remove package in the test-folder:
      npm unlink --no-save npm-test

Remove global link to the npm package:
      cd npm-test/package/ 
      npm unlink

 
Sources:

https://docs.npmjs.com/cli/v6/commands/npm-pack

https://medium.com/@debshish.pal/publish-a-npm-package-locally-for-testing-9a00015eb9fd

https://www.cyberciti.biz/faq/unpack-tgz-linux-command-line/

https://medium.com/@alexishevia/the-magic-behind-npm-link-d94dcb3a81af

Audio Level Indicator . Log DB LM3915 fed by LF353 for S-meter?

I've also discovered an audio level indicator recently: https://www.aliexpress.us/item/2251832501435636.html
&
https://www.mouser.com/datasheet/2/405/lm3915-443929.pdf
& https://www.ti.com/lit/ds/symlink/lf353-n.pdf
https://www.youtube.com/watch?v=jllsqRWhjGM (EEVblog #490 - Peak Detector Circuit --- feed to lm3915 for led bar display  (s-meter))
use caps with low dielectric adsorption: http://danssmallpartsandkits.net/ (polystyrene caps)
https://www.youtube.com/watch?v=Fn5kHhNRsz0 (#77: Op Amp Peak Detector Tutorial, with peak detector basics)Why?
http://www.ozqrp.com/docs/MST3_manual_V1.pdf (mostly analog radio)
-->    http://www.ozqrp.com/docs/LED_S_meter_manual_V1_0.pdf (S-Meter)

My mind also wandered to the digital to signal processing realm:
https://www.analog.com/media/en/technical-documentation/data-sheets/ad9226.pdf (Analog to Digital)
https://wiki.sipeed.com/hardware/en/tang/Tang-Nano-9K/Nano-9K.html (Digital Signal Processing)
https://www.analog.com/media/en/technical-documentation/data-sheets/2604fd.pdf (Digital to Analog) --- to 50MhZ
https://www.youtube.com/watch?v=ZZJekllYUVc (R2R resistor ladder to 25MHz)ADC w/ FPGA (https://www.youtube.com/watch?v=cvdzEQhLpYw)
VLSI Project || DAC( Digital to Analog Converter) interfacing with FPGA using SPI || SPARTAN 3E (https://www.youtube.com/watch?v=CPGX-Kdvx9s)

-----------------------------------------------------------------------------------------------------------------------------
Addendum:
https://www.elprocus.com/analog-to-digital-converter/

Oddly I found myself thinking about FPGAs, here are my findings... (tldr....you can try obtaining ZKP BLS12_381 curves)

This was some bantering also published here: (https://lists.w3.org/Archives/Public/public-credentials/2022Sep/0180.html).

As I was studying for my HAM radio general exam, my brain wondered. I thought about digital filtering, which led me to https://www.youtube.com/watch?v=HJ-C4Incgpw (How to design and implement a digital low-pass filter on an Arduino).
Realizing the limitations of this I soon found myself on https://www.youtube.com/watch?v=vVjWFFclU6I (Implementing Digital Signal Processing on the FPGA of a FlexRIO).

Naturally the next morning this led to exploration of https://identity.foundation/bbs-signature/draft-looker-cfrg-bbs-signatures.html#name-bls12-381-ciphersuites and discovery of
https://www.youtube.com/watch?v=vCG5_nxm2G4 (MeganWachs - Keynote RISC-V and FPGAs: Open Source Hardware Hacking) which led to https://github.com/riscv/riscv-crypto and
https://riscv.org/wp-content/uploads/2017/12/Wed-1354-RISCV-CryptoExtensions-RichardNewell.pdf and https://www.youtube.com/watch?v=-HVRjbxWF-I (A Guide to the RISC V Cryptography Extension).

I also found bls12_381 on an FPGA: https://dspace.mit.edu/bitstream/handle/1721.1/138122/Paper_PrePrint_Version.pdf (done on an in-house FPGA)

This bls12_381 on FPGAs also led to discovery of work by the ZCash Foundation: https://github.com/ZcashFoundation/zcash-fpga/tree/master/zcash_fpga/src/rtl/bls12_381 . Apparently this was done on AWS FPGAs.

I discovered the Tang Nano 9K FPGA Development Board GOWIN GW1NR-9 RISC-V HDMI kit . Realizing they were inexpensive, I grabbed two imagining IIW. I also recalled my time at the

Virtual Silicon Salon (https://www.siliconsalon.info/) and remembered that hardware was slow, and

IIRC BLS signatures used for selective disclosure are not yet available in hardware.

I've never worked with FPGAs before. I discovered what I found is like the Ice40 (unfortunately hard to find at the moment), but it did lead me to some good resources.

ice40 playlist:
https://www.youtube.com/watch?v=DwxBkYhor80
https://www.youtube.com/watch?v=UlgJ7TRU1KI
https://www.youtube.com/watch?v=6UgVUExXlvg
https://www.youtube.com/watch?v=dTL0qrzme4
(I found that this was still available, later in exploration: https://tinyvision.ai/) --- ditto for tinyFPGA (https://tinyfpga.com/)


Tang Nano from Gowin Semi:
https://github.com/gowinsemi  (Github)
https://www.youtube.com/channel/UC0VdsHXVKAaMkFVyBzVLVIQ (YouTube)
https://wiki.sipeed.com/hardware/en/tang/Tang-Nano-9K/Nano-9K.html (Wiki)
https://www.youtube.com/watch?v=WKB04zxLrHA (Tang Nano 9k)
https://www.youtube.com/watch?v=kyQLtBh6h0U (FPT2020: A Complete Open Source Design Flow for Gowin FPGAs)
https://www.youtube.com/watch?v=Gh9VfCvTWck (2nd Open Source video, possibly building on the former)
https://www.bananatronics.org/first-steps-with-the-tang-nano-fpga-development-board/
https://www.cnx-software.com/2022/01/17/tang-nano-9k-fpga-board-can-emulate-picorv32-risc-v-soft-core-with-all-peripherals/

General FPGA links:
https://www-electronicayciencia-com.translate.goog/2021/07/tang_nano_fpga.html?_x_tr_sl=auto&_x_tr_tl=en&_x_tr_hl=en&_x_tr_pto=wapp
https://www.youtube.com/watch?v=gUsHwi4M4xE (EEVblog#496 What is an FPGA?)
https://fpgatutorial.com/getting-started-with-fpga-development-process/
https://www.fpga4student.com/p/verilog-project.html
https://github.com/BrunoLevy/learn-fpga

------------------------------------
Addendum:
https://medium.com/asecuritysite-when-bob-met-alice/explaining-bls12-381-the-zero-knowledge-proof-curve-aa5eabec8261

https://www.youtube.com/watch?app=desktop&v=sOKJWAnrbHM (ARM with FPGA)

WiFi Manager for connecting the ESP32 to a WiFi Network when you don't know the password

 https://www.youtube.com/watch?v=_uXKIEmJh3g

WiFiManager with ESP32 - Stop Hard-coding WiFi Credentials!

 I suppose you also could use Bluetooth or even LoRa if you had the transceiver.

LoRa Location Tracking

 https://www.rs-online.com/designspark/lora-location-tracker-introduction

https://tinygs.com/

random comment about single channel gateway

 

fwiw, I touched https://github.com/HelTecAutomation/ESP32_LoRaWAN last December. I haven't rolled it into a talk though and there is a lot more to LoRa than what I utilized. Basically, rather than buying a gateway I stuck with a single channel one made with ESP32_LoRa.
https://github.com/bshambaugh/BlinkyProject/blob/master/CubeCellandHeltecESP32_try[…]/edgeDevices/ESP32_ToDo/CubeCell_LoRa_To_ESP32_RX_To_NodeJS.ino
https://github.com/bshambaugh/BlinkyProject/blob/master/CubeCellandHeltecESP32_try7/edgeDevices/CubeCell_ToDo/ESP32_To_CubeCell_RX.ino (edited)

journal july 26th

 

I realize you've got you're own lives, so you don't need to read this. I'm in front of the computer a lot, and just typing things out comes most naturally. It's a journal, to get my thoughts out of my head and hopefully get back to what I need to do to move forward. I'm happy that there is a distributed systems paper group. It was a fun way to connect, and maybe something a little more neutral than asking for help with a project. I don't feel like I fit in where I live. There are a lot of React and C# development jobs, but I typically don't gravitate that direction. I thought I had it made when my HAM buddies challenged me to find a gig, and I found one on GitCoin for a known web3 project, but it got closed up when I pointed out a broken link in the documentation. Oh well. I spend a lot of time at home these days. It's frustrating that my interests don't seem to fit in with the local market. I've been into distributed/decentralized systems for about 10 years but it doesn't seem to be a thing here. I always have to remind myself to keep my chin up and focus on where I want to go, even if that means finding and investing in another community to succeed. I found a JavaScript discord that I wasn't aware of, so it is another place to look if I get totally stuck.

I think I will get back to working with group theory. I've been trying to figure out how this fits in with cryptography, and well category theory too. (It's a subset afaik). Tonight is the HAM thing. I guess if I cannot pull myself away from my project and learn something like React or C#, I could work at the drive-in for extra cash. Or just not bother, and read books and build projects for as long as I can. I think I've been pretty good about managing my money, with a few exceptions. I'll be going to the Internet Identity Workshop this fall. I hope to present on an abstract data model for dids and v.c. (if possible) and talk about my adventures with IoT. A friend of mine just sent me a cryptographic protocol that they developed. I'd like to check it out. If it can get me away from using an auxiliary cryptographic co-processor it could save on the complexity and unit cost.

String, Char *, and char[]

https://www.geeksforgeeks.org/convert-string-char-array-cpp/

https://www.techiedelight.com/convert-std-string-char-cpp/

https://www.geeksforgeeks.org/char-vs-stdstring-vs-char-c/

identity with skynet

 Identity with skynet:

https://blog.sia.tech/skyid-how-to-make-decentralized-identity-using-skynet-2b282682f5b3

 I wonder if they support verifiable credentials though....I suppose this would require a did method.... does skydb have a computer layer??? would this be needed?

I think something was said about creating a react app, so maybe this is possible.

Thoughts about my project (progress, maintainability, productivity)

Reposting from the techlahoma #tech-talk channel

I'm working on my project, but it seems to be taking awhile. I think about each part and built a small prototype of each part and then I piece these parts together thinking about the whole.

Does oop help organize all the moving parts so it is easier to rationalize?Maybe it is how my brain works, but I am basically forced to print my code out a lot, mark it up with pen,crayon, pencil, compare it  to new (and previous) code that works, and fit it into new code. In graduate school, I did a lot of procedural programming, and C is a procedural language. I do print out code that is written in typescript, so to extent it is my brain.I think writing tests both in Unity for C and Jest for typescript/javascript has helped me cover some bases. It hasn't always been TDD. I think some of the time I have had not but a vague idea of what I should code, and what libraries I should use, or what parts should be there. It was this should do this, or this should talk to this. ...Over time by working through it I discovered I also needed to do thisValgrind is a very useful tool for writing C code. It just saved the day today my reminded me I needed to initialize a struct. After I did this, my code worked in a much more desirable way. (edited)

I'm definitely coding by code I can find online. It is not always easy to know all of the code that I need to get small things to work. Some might call this boilerplate?zI remember starting out with HTTP requests, and then through discussions here, switching to websockets. I needed a persistent connection that did not hang up because I was constantly streaming data out. (if I recall correctly)My computer is littered with small programs that I have run or compiled. Some only have a small change from the next. At times when I have had the discipline to use Git my organization has improved. (edited)

I do get scenes like this quite a bit. There is nothing quite like printing stuff out and marking it up, whether it be code, a tutorial, or documentation.

I thought that maybe this should be a blog post.

One of the repositories that I have been making pull requests on requires that I run a linter in addition to jest. I think they have their github repository set up with circleCI that includes this to protect against poorly behaving actors like me.

In the future, if I choose to refactor my C code to C++ code it might be useful to write tests using a test framework like Unity. I have a much better idea of what should be there, so does seem likely that I will be able to talk about each individual piece of logic.

It's amazing how quickly I can forget what I did. I look at a code base that I spent a good while one many months ago and be surprised that I had the ability to write it.  After a few days  spent relearning, I can usually get up to speed.

I think having more tests could help me recover from amenesia. If it is a bunch of files that I have to trace through then that can be quite time consuming and challenging. Inevitably that always seems to happen. I usually can trick out what my train of thought was, but it takes time.

Musings

 

Separation of concerns:

Summarizing: https://www.youtube.com/watch?v=Z8Wf7Srsg5U&t=2859s

Approach to take:

Using Jest Links

https://www.valentinog.com/blog/jest/
Jest Tutorial for Beginners: Getting Started With JavaScript Testing, July 25, 2020 by Valentino Gagliardi

Expect a function to throw an exception in Jest, July 4, 2019 by ecadmin
https://eloquentcode.com/expect-a-function-to-throw-an-exception-in-jest

An Async Example : Jest
https://jestjs.io/docs/tutorial-async#resolves

Jest Partial Match:
https://codewithhugo.com/jest-array-object-match-contain/

Continuous Integration on GitHub Links

https://docs.github.com/en/actions/automating-builds-and-tests/about-continuous-integration

Node.js Stack Trace and Debugger Links

https://stackoverflow.com/questions/38597908/how-do-i-debug-node-js-errors-when-my-code-is-nowhere-in-the-stack-trace

Node.js Debugger:
https://nodejs.org/api/debugger.html

https://www.youtube.com/watch?v=XbB5_fHHxRc

Notes for GitHub

 Git Branching, Git Merging:

https://www.varonis.com/blog/git-branching/

How to add a commit to an existing pull request:

https://saraford.net/2017/01/20/how-to-add-changes-to-a-pull-request-after-you-have-already-created-a-pull-request-020/


Add to an existing pull request:

https://github.com/github/hub/issues/198


Committing to someone else's pull request:

https://tighten.co/blog/adding-commits-to-a-pull-request/

(this fails because I do not have access rights)

Heated Board Notes

 I like this. It allows me to build a heater with items I already have: https://www.youtube.com/watch?v=WT9xWyLK-Ic

Maybe add this: https://www.youtube.com/watch?v=LXhTFBGgskI to get the control part.

It looks like the heater is good to at least 100 Celsius, or maybe 120 Celsius to push it.
https://www.nanotech-elektronik.pl/index.php/en/info/materials


I did some soldering, and now I have:

I still need to add some lead wires and clean up unwanted solder from the strip traces.

I added some wire:

But I might still have some solder in a gap:

SSH or Tokens with GitHub -- because no passwords starting on Aug 13th

For Tokens:
https://techglimpse.com/git-push-github-token-based-passwordless/

For SSH:

Oh, since I viisted Harry's House of Pain while doing this I will share this: https://gist.github.com/xirixiz/b6b0c6f4917ce17a90e00f9b60566278 [SSH keypair setup for GitHub (or GitHub/GitLab/BitBucket, etc, etc)] and honourable mention: https://linuxkamarada.com/en/2019/07/14/using-git-with-ssh-keys/ . I had a problem when I ran git config --global commit.gpgsign true and had to set it to false git config --global commit.gpgsign false)

Go to: https://github.com/settings/keys

GitHub's Tutorial: https://docs.github.com/en/authentication/connecting-to-github-with-ssh/about-ssh

Maybe this is useful someday: https://git-scm.com/book/en/v2/Git-on-the-Server-Setting-Up-the-Server