#digital display board software

[globusinfocomlimited]

Importance of Digital Board for classroom learning

In this fast-changing world, both the role of schools and teachers are rapidly transforming. Many EdTech brands have developed effective learning software and applications to support students’ development inside the classroom. Digital learning platforms create learning experiences that encourage students to actively participate and learn available educational content. These online learning platforms are used to create an engaging learning environment for students and offer personalized lessons for each student supporting self-paced learning.  

Today, resources that aid teachers in grabbing and holding learners’ attention are essential. Low students engagement is the most common problem faced.

Smart boards, often known as digital boards for teaching, make teaching easier by enhancing student learning. They enable teachers and students to work together to study, share files, use instructional software and access online resources.

Here are the top five benefits of using smart boards in the classroom and how they may help every student.

1. Increase student involvement

Researchers claim that because of the available K–12 content today, students are turning into digital natives, and they learn more effectively. Solutions for easy-to-use, scalable, and secure displays provide teachers more power over the curriculum. Teachers may design more engaging lessons by writing or typing on digital boards, drawing attention to subjects with highlights, circles, arrows, or zooming in—as well as sharing multimedia information like videos, webpages, presentations, and photographs. Even numerous parts of the digital board for teaching can be created so that multiple students can use it effectively and simultaneously.

2. Accommodate many learning modalities

An interactive whiteboard is helpful for all types of learners, ensuring better audio-video experiences. Learners can hear multimedia content, also hands-on the board, and write on it with a stylus or even just their fingers. Visual learners benefit from a 4K UHD screen, like the one on Globus digital boards. The smart board can be used for one-on-one interaction with learners or for educating small groups of students arranged according to learning preferences.

3. Lessons saved, shared, and sent

K–12 instructors were already setting aside some of their time to make learning easily available for children who were absent due to illness before COVID-19. However, teachers can now utilize a digital board to take screenshots of their teachings, preserving them quickly by even recording, and sharing them with the entire class as well as any other colleagues who might require them. There are countless alternatives for content. Teachers can construct review materials for students to use at home or save their own notes so they can take up where they left off.

4. Make the classroom accessible to everybody.

Digital boards for teaching make it simpler for teachers to include students via video-conference technology, whether some or the entire class is learning remotely. There is no requirement to install any unique cameras. Students who are at home can participate in class discussions and observe everything the teacher does. This not only makes hybrid learning possible but also promotes it.

5. Encourage learner’s success

Students who used digital boards to learn performed noticeably better and engage better through it rather than the traditional method of learning. Students get inclined easily toward visual learning and thus "visual materials, paintings, symbols, and screen designs improve learning and increase learning persistence."

Schools that are digitalizing their classrooms with digital learning solutions are investing in their students making them future-ready and preparing them for a better tomorrow.

[interactivewhiteboardsupplier]

Smart Board Supplier | Cheap Interactive Flat Panel | Low Budget Interactive Whiteboard. WhatsApp:https://wa.me/008618578623258.

Interactive flat panels are revolutionizing the way we collaborate and communicate in various settings, from classrooms to corporate environments. As a leading supplier, we offer a range of high-quality interactive flat panel displays designed to enhance engagement and interactivity. Our products feature advanced touch technology, vibrant displays, and seamless connectivity options, making them ideal for presentations, teaching, and brainstorming sessions. With user-friendly interfaces and robust software compatibility, our interactive panels cater to diverse needs, ensuring an immersive experience. Partner with us to elevate your visual communication and transform your collaborative efforts with cutting-edge interactive solutions.

[engagisblog]

​DIGITAL SIGNAGE SOLUTIONS AUSTRALIA

Reaching customers, staff, and visitors at the right location is crucial for enhancing engagement in competitive and complex environments like retail stores, workplaces, health facilities, and educational institutions. Digital signage allows you to do this effortlessly, delivering creative, tailored content to your audience at every stage of their journey.

Enhancing Customer Experience with Digital Signage

Digital signage effectively attracts passers-by and entices them to enter your store, but it also significantly enhances customer satisfaction once they are inside. Interactive digital screens, for instance, can provide customers with information about wait times, facilitate smoother queueing, or display more products than your physical space allows. Even non-interactive digital displays can enhance the customer experience by introducing new products, demonstrating additional use cases, or improving brand perception through positive messaging and visuals.

Standard displays are great for home use but aren't suitable for commercial settings. They lack the flexibility, durability, and extended operation capabilities needed in commercial environments. Additionally, they don't offer commercial warranties, service agreements, or security features, leaving businesses vulnerable to unexpected issues.

Navigating Digital Signage Options with Expert Assistance

Choosing from the numerous digital signage options can be difficult. Do you require menu boards that are updated daily? Are you looking for video walls to display looped promotional videos? With so many decisions to make regarding digital screens, it's essential to collaborate with a partner who can help you find the ideal digital signage solutions for your business's unique needs. Contact Engagis for personalized support tailored to your specific requirements and use cases.

Diverse Digital Signage Solutions from Engagis

Engagis offers a diverse range of digital signage solutions tailored to various business needs. Here are the main types of digital signage they provide:

Standard Digital Displays: These include high-definition screens for displaying dynamic content. They can be used for advertisements, informational displays, and branding in retail, corporate environments, and public spaces.

Interactive Touch Screens: These screens allow users to interact directly with the display. Commonly used in retail for product information, in hospitality for self-check-in services, and in corporate settings for interactive presentations and wayfinding.

Video Walls: These consist of multiple screens combined to create a large, high-impact display. They are ideal for large venues like shopping malls, airports, and conference centers, where they can display promotional videos or important information in a visually striking manner.

Menu Boards: Digital menu boards are commonly used in the food service industry. They allow for easy updates and dynamic displays of menu items, prices, and promotions.

Transparent LED Displays: These innovative displays allow for visibility through the screen while still showing vibrant content. They are used in retail windows and other applications where maintaining sightlines is important

Augmented Reality (AR) and Virtual Reality (VR) Integration: Engagis also integrates AR and VR elements into their digital signage to create immersive experiences. This can be particularly engaging for marketing campaigns and interactive displays

These solutions enhance engagement, improve customer experiences, and provide flexible and dynamic ways to communicate information across various industries including retail, healthcare, hospitality, education, and corporate environments. For more detailed information, you can visit the Engagis website.

[deveploment]

Elevate Your Business Presence: Free Digital Signage and Touch Screen Signage Solutions in Singapore

Free Digital Signage Singapore:

Enhance your business's visibility and engage your audience with free digital signage Singapore solutions in Singapore. Digital signage offers a dynamic and eye-catching way to display information, promotions, and advertisements in various settings, including retail stores, restaurants, corporate offices, and public spaces.

Free digital signage platforms in Singapore provide businesses with the tools they need to create, schedule, and manage content easily. With customizable templates, intuitive design tools, and cloud-based software, businesses can create stunning digital displays that capture the attention of passersby and effectively communicate their messages.

From promoting products and services to providing real-time updates and announcements, free digital signage allows businesses to showcase their brand in a visually compelling and interactive way. With the flexibility to display multimedia content such as videos, images, and live feeds, businesses can create immersive experiences that resonate with their target audience.

Touch Screen Signage Singapore:

Take your digital signage to the next level with touch screen signage solutions in Singapore. Touch screen signage allows users to interact with content directly, enabling them to explore information, navigate menus, and make selections with a simple touch or swipe.

Touch screen signage Singapore is ideal for businesses looking to provide interactive experiences to their customers, such as wayfinding in malls, interactive menus in restaurants, and product demonstrations in retail stores. With intuitive touch interfaces and responsive technology, touch screen signage engages users and encourages them to explore and interact with your content.

In addition to enhancing user engagement, touch screen signage offers valuable data insights and analytics that businesses can use to understand user behavior, preferences, and demographics. By analyzing this data, businesses can optimize their content and marketing strategies to better meet the needs of their audience.

Whether you're looking for a cost-effective digital signage solution or a cutting-edge touch screen experience, Singapore offers a range of options to help businesses elevate their brand presence and engage their audience effectively. With free digital signage Singapore can create singapore digital signage and touch screen signage solutions, businesses memorable and impactful experiences that leave a lasting impression on their customers.

[daleharper37]

Digital Signage Player

Whenever making an effort to stand out unique in the business market for a longer run, make sure you have invested in a good digital signage bringing you more powerful elements to your business processes. With this, first know about digital signage player existing in the market.

[rosettabruce14]

Advertising Signage

Do you have a business where you always wish to attract your customer base and get some crucial leads without facing any issues? well, if this is the case then you are supposed to learn about advertising signage and how these work for businesses and other purposes. There is a lot of scope to use it.

[interactivewhiteboardsupplier]

ตู้แสดงผลอัจฉริยะแบบดิจิทัล, ตู้ป้ายดิจิทัลแบบโต้ตอบ ตู้ดิจิทัลและจอแสดงผลแบบโต้ตอบ

ShenZhen Cintoe Intelligent Technology Co.,Ltd เป็นผู้ผลิตมืออาชีพของจอแบนเชิงโต้ตอบ กระดานอัจฉริยะเชิงโต้ตอบ กระดานนาโนการสอนอัจฉริยะ จอแสดงผลป้ายดิจิทัล และโซลูชันออลอินวันจอแสดงผลเชิงพาณิชย์อื่น ๆ

Interactive Flat Panel Display - Education Interactive Display | Effective Collaboration Board.Interactive Flat Panel Manufacturer - Interactive Whiteboard and Smart Board Supplier, Whatsapp: https://wa.me/008618578623258.

Interactive flat panel manufacturers, such as those producing interactive whiteboards and SMART boards, are transforming educational and corporate environments. These advanced display technologies enhance collaboration and engagement, allowing users to interact with content through touch or stylus. With features like multi-user capabilities, seamless connectivity, and integrated software, interactive panels foster dynamic learning and presentation experiences. Leading suppliers ensure high-quality displays that cater to diverse needs, from classrooms to conference rooms. As digital transformation accelerates, the demand for these interactive solutions continues to rise, making them essential tools for effective communication and knowledge sharing in today's technology-driven world.

[globusinfocomlimited]

How hybrid learning will drive the change in the education community.

Do you think the education system of India needs some transformation? Do you think adopting hybrid learning will help bring change in the education community? Everybody can have their view regarding the acceptance of hybrid learning in the classrooms. But what matters is effective and occupying learning which can be followed by any medium adopted in the classrooms.

The internet when came into existence saw a whole complete revolution across different sectors. Its impact could be seen mostly in the education sector where India’s education system is working on a conventional approach to meet the demands of changing times.

“Our need will be the real creator” as said by Plato has proven to be true in the recent crisis since the need for the continuation of education led to magnificent innovative solutions installed in the classroom. The rise of education technology providers gave a break to both classroom and teaching methods giving “transformation” to the traditional pedagogical method. The implementation of methods used worldwide in distance learning has encouraged the medium of hybrid learning methods. Hybrid learning is creating an ideal learning experience following a better approach toward the dual-mode of learning creating inclusive solutions for classrooms.

What is hybrid learning? 

An educational model promotes both the medium of learning where students can attend in class academic sessions with an option of joining it virtually from different location too. Educators can address both genre of students together through a mix of online & in-class sessions running simultaneously. It is the best approach for education with a customized learning format and an accessible learning ecosystem strongly combines the advantages of personalization with convenience to offer a learning environment that is best suited to address the changing needs of students in the present times.  

How is hybrid learning driving the change in the education community? 

Dual modes of learning are allowing students to choose the medium they want to learn. This ensures better learning outcomes for the large number of students benefitting both the schools and higher education institutions.

 Personalized Learning: Hybrid learning allows learners to learn at a convenient pace which helps them to grasp the concept better & increases the retention rate. It offers variety of synchronous & asynchronous learning methodologies which are customized as per their varied learning abilities. Also teachers-student interactions can also be on a personalized and effective level.

 Flexibility in collaboration and communication

Flexibility allows classrooms to be beneficial at most. Since there is limitation of attending class in person, children can learn remotely from home. Many teachers utilize this approach to save their time while focusing on enhancing productivity. Flexibility in learning methods, in the medium of teaching, and the engagement of students drives in deep engagement. It also creates an accessible learning ecosystem which helps quality education to reach maximum number of students across diverse geographies.

Real-time engagement

Hybrid learning can be utilized best for real-time engagement where students can be involved in group work, with question-and-answer sessions creating peer collaboration to make learners adopt the concept easily. Face-to-face hybrid learning creates meaningful academic relations between educators and students giving them opportunity to doubt solving & intense subject discussion in real time.

Appropriate academic exposure

The academic exposure creates both interest and freedom for learning, freedom to develop, self-manage, and conveniently follow the materials encourage students to excel without facing geographical barriers. It also allows learners to learn on their own pace & convenience which encourages them to follow academics further. Quality academic exposure helps the learners to prepare better for the competitive world ahead them and helps to curb the existing disparity among the diverse geographic patches. Easily accessible learning

Through hybrid learning, online content can be available to diverse users. Lack of accessing education has long-term implications on their ability to find employment. This global accessibility to education also means exploring new tools and newly advanced education solution providers are making this possible.

 Systematic use of resources

 Optimal use of resources is the necessity of class to encourage active learning and develop major skills. resources provided in any form of teaching must be authentic and reliable since a child’s future is based on it.

By following hybrid learning one can ensure effective use of resources reaching a large number of students since the resources are authentic & teacher      

Generate a successful hybrid learning environment with essential technology

To enable a successful hybrid learning environment complete and proper hybrid learning setup is needed. Many leading EdTech solution providers today have driven distinct innovative solutions for classrooms to make hybrid learning a successful drive for changing the education system of India.

·  Interactive Display- Interactive Display is a digitally enhanced classroom solution that creates an interactive learning environment without much effort. The interactive display can be utilized as a diverse medium of learning offering engagement, interaction & collaboration. The multimedia resources, interactive academic resources, gamified-based learning concepts, external connectivity to the internet, quiz, and assessment, video-recording features, and many more features help in keeping the equal balance between in-class & online student’s learning quality making it the perfect solution to create a successful hybrid learning environment.

· Digital Board- Recent classroom learning environments have seen the rise of digital boards encouraging e-learning in the education system of India. Collaboration of traditional and modern ways of learning offers an engaging & interactive learning environment. Students can develop futuristic academic background along with advanced digital skills through such digital solutions

· Virtual classrooms software- The virtual learning session with live classes allows teachers and students to collaborate in real-time. Multimedia-rich learning resources are mapped as per the curriculum of schools motivating students for active participation. It allows teachers to share PDF, PPT, XLS, TXT, etc. with students and live to annotate synchronously. Teachers can assess the progress of students via online cheat-proof assessments, projects, and assignments along with the in-class learners keeping learners at the same pace of learning. This allows the learners to continue their education without any geographical hassle & helps them to continue with their choice of academics.

Draw to a close

With time we always need some progressive solutions for the challenges we face in our ways. In addition to improvement in every sector, the most concerning sector that seeks continuous modification is the education sector which needs proper attention, recognition, and continuous observation. With an entirely new approach and investment, a better future for students is ensured.

[max-levchin]

Shamir Secret Sharing

It’s 3am. Paul, the head of PayPal database administration carefully enters his elaborate passphrase at a keyboard in a darkened cubicle of 1840 Embarcadero Road in East Palo Alto, for the fifth time. He hits Return. The green-on-black console window instantly displays one line of text: “Sorry, one or more wrong passphrases. Can’t reconstruct the key. Goodbye.” 

There is nerd pandemonium all around us. James, our recently promoted VP of Engineering, just climbed the desk at a nearby cubicle, screaming: “Guys, if we can’t get this key the right way, we gotta start brute-forcing it ASAP!” It’s gallows humor – he knows very well that brute-forcing such a key will take millions of years, and it’s already 6am on the East Coast – the first of many “Why is PayPal down today?” articles is undoubtedly going to hit CNET shortly. Our single-story cubicle-maze office is buzzing with nervous activity of PayPalians who know they can’t help but want to do something anyway. I poke my head up above the cubicle wall to catch a glimpse of someone trying to stay inside a giant otherwise empty recycling bin on wheels while a couple of Senior Software Engineers are attempting to accelerate the bin up to dangerous speeds in the front lobby. I lower my head and try to stay focused. “Let’s try it again, this time with three different people” is the best idea I can come up with, even though I am quite sure it will not work. 

It doesn’t. 

The key in question decrypts PayPal’s master payment credential table – also known as the giant store of credit card and bank account numbers. Without access to payment credentials, PayPal doesn’t really have a business per se, seeing how we are supposed to facilitate payments, and that’s really hard to do if we no longer have access to the 100+ million credit card numbers our users added over the last year of insane growth. 

This is the story of a catastrophic software bug I briefly introduced into the PayPal codebase that almost cost us the company (or so it seemed, in the moment.) I’ve told this story a handful of times, always swearing the listeners to secrecy, and surprisingly it does not appear to have ever been written down before. 20+ years since the incident, it now appears instructive and a little funny, rather than merely extremely embarrassing. 

Before we get back to that fateful night, we have to go back another decade. In the summer of 1991, my family and I moved to Chicago from Kyiv, Ukraine. While we had just a few hundred dollars between the five of us, we did have one secret advantage: science fiction fans. 

My dad was a highly active member of Zoryaniy Shlyah – Kyiv’s possibly first (and possibly only, at the time) sci-fi fan club – the name means “Star Trek” in Ukrainian, unsurprisingly. He translated some Stansilaw Lem (of Solaris and Futurological Congress fame) from Polish to Russian in the early 80s and was generally considered a coryphaeus at ZSh. 

While USSR was more or less informationally isolated behind the digital Iron Curtain until the late ‘80s, by 1990 or so, things like FidoNet wriggled their way into the Soviet computing world, and some members of ZSh were now exchanging electronic mail with sci-fi fans of the free world.

The vaguely exotic news of two Soviet refugee sci-fi fans arriving in Chicago was transmitted to the local fandom before we had even boarded the PanAm flight that took us across the Atlantic [1]. My dad (and I, by extension) was soon adopted by some kind Chicago science fiction geeks, a few of whom became close friends over the years, though that’s a story for another time. 

A year or so after the move to Chicago, our new sci-fi friends invited my dad to a birthday party for a rising star of the local fandom, one Bruce Schneier. We certainly did not know Bruce or really anyone at the party, but it promised good food, friendly people, and probably filk. My role was to translate, as my dad spoke limited English at the time. 

I had fallen desperately in love with secret codes and cryptography about a year before we left Ukraine. Walking into Bruce’s library during the house tour (this was a couple years before Applied Cryptography was published and he must have been deep in research) felt like walking into Narnia. 

I promptly abandoned my dad to fend for himself as far as small talk and canapés were concerned, and proceeded to make a complete ass out of myself by brazenly asking the host for a few sheets of paper and a pencil. Having been obliged, I pulled a half dozen cryptography books from the shelves and went to work trying to copy down some answers to a few long-held questions on the library floor. After about two hours of scribbling alone like a man possessed, I ran out of paper and decided to temporarily rejoin the party. 

On the living room table, Bruce had stacks of copies of his fanzine Ramblings. Thinking I could use the blank sides of the pages to take more notes, I grabbed a printout and was about to quietly return to copying the original S-box values for DES when my dad spotted me from across the room and demanded I help him socialize. The party wrapped soon, and our friends drove us home. 

The printout I grabbed was not a Ramblings issue. It was a short essay by Bruce titled Sharing Secrets Among Friends, essentially a humorous explanation of Shamir Secret Sharing. 

Say you want to make sure that something really really important and secret (a nuclear weapon launch code, a database encryption key, etc) cannot be known or used by a single (friendly) actor, but becomes available, if at least n people from a group of m choose to do it. Think two on-duty officers (from a cadre of say 5) turning keys together to get ready for a nuke launch. 

The idea (proposed by Adi Shamir – the S of RSA! – in 1979) is as simple as it is beautiful. 

Let’s call the secret we are trying to split among m people K. 

First, create a totally random polynomial that looks like: y(x) = C0 * x^(n-1) + C1 * x^(n-2) + C2 * x^(n-3) ….+ K. “Create” here just means generate random coefficients C. Now, for every person in your trusted group of m, evaluate the polynomial for some randomly chosen Xm and hand them their corresponding (Xm,Ym) each. 

If we have n of these points together, we can use Lagrange interpolating polynomial to reconstruct the coefficients – and evaluate the original polynomial at x=0, which conveniently gives us y(0) = K, the secret. Beautiful. I still had the printout with me, years later, in Palo Alto. 

It should come as no surprise that during my time as CTO PayPal engineering had an absolute obsession with security. No firewall was one too many, no multi-factor authentication scheme too onerous, etc. Anything that was worth anything at all was encrypted at rest. 

To decrypt, a service would get the needed data from its database table, transmit it to a special service named cryptoserv (an original SUN hardware running Solaris sitting on its own, especially tightly locked-down network) and a special service running only there would perform the decryption and send back the result. 

Decryption request rate was monitored externally and on cryptoserv, and if there were too many requests, the whole thing was to shut down and purge any sensitive data and keys from its memory until manually restarted. 

It was this manual restart that gnawed at me. At launch, a bunch of configuration files containing various critical decryption keys were read (decrypted by another key derived from one manually-entered passphrase) and loaded into the memory to perform future cryptographic services.

Four or five of us on the engineering team knew the passphrase and could restart cryptoserv if it crashed or simply had to have an upgrade. What if someone performed a little old-fashioned rubber-hose cryptanalysis and literally beat the passphrase out of one of us? The attacker could theoretically get access to these all-important master keys. Then stealing the encrypted-at-rest database of all our users’ secrets could prove useful – they could decrypt them in the comfort of their underground supervillain lair. 

I needed to eliminate this threat.

Shamir Secret Sharing was the obvious choice – beautiful, simple, perfect (you can in fact prove that if done right, it offers perfect secrecy.) I decided on a 3-of-8 scheme and implemented it in pure POSIX C for portability over a few days, and tested it for several weeks on my Linux desktop with other engineers. 

Step 1: generate the polynomial coefficients for 8 shard-holders.

Step 2: compute the key shards (x0, y0)  through (x7, y7)

Step 3: get each shard-holder to enter a long, secure passphrase to encrypt the shard

Step 4: write out the 8 shard files, encrypted with their respective passphrases.

And to reconstruct: 

Step 1: pick any 3 shard files. 

Step 2: ask each of the respective owners to enter their passphrases. 

Step 3: decrypt the shard files.

Step 4: reconstruct the polynomial, evaluate it for x=0 to get the key.

Step 5: launch cryptoserv with the key. 

One design detail here is that each shard file also stored a message authentication code (a keyed hash) of its passphrase to make sure we could identify when someone mistyped their passphrase. These tests ran hundreds and hundreds of times, on both Linux and Solaris, to make sure I did not screw up some big/little-endianness issue, etc. It all worked perfectly. 

A month or so later, the night of the key splitting party was upon us. We were finally going to close out the last vulnerability and be secure. Feeling as if I was about to turn my fellow shard-holders into cymeks, I gathered them around my desktop as PayPal’s front page began sporting the “We are down for maintenance and will be back soon” message around midnight.

The night before, I solemnly generated the new master key and securely copied it to cryptoserv. Now, while “Push It” by Salt-n-Pepa blared from someone’s desktop speakers, the automated deployment script copied shard files to their destination. 

While each of us took turns carefully entering our elaborate passphrases at a specially selected keyboard, Paul shut down the main database and decrypted the payment credentials table, then ran the script to re-encrypt with the new key. Some minutes later, the database was running smoothly again, with the newly encrypted table, without incident. 

All that was left was to restore the master key from its shards and launch the new, even more secure cryptographic service. 

The three of us entered our passphrases… to be met with the error message I haven’t seen in weeks: “Sorry, one or more wrong passphrases. Can’t reconstruct the key. Goodbye.” Surely one of us screwed up typing, no big deal, we’ll do it again. No dice. No dice – again and again, even after we tried numerous combinations of the three people necessary to decrypt. 

Minutes passed, confusion grew, tension rose rapidly. 

There was nothing to do, except to hit rewind – to grab the master key from the file still sitting on cryptoserv, split it again, generate new shards, choose passphrases, and get it done. Not a great feeling to have your first launch go wrong, but not a huge deal either. It will all be OK in a minute or two.

A cursory look at the master key file date told me that no, it wouldn’t be OK at all. The file sitting on cryptoserv wasn’t from last night, it was created just a few minutes ago. During the Salt-n-Pepa-themed push from stage, we overwrote the master key file with the stage version. Whatever key that was, it wasn’t the one I generated the day before: only one copy existed, the one I copied to cryptoserv from my computer the night before. Zero copies existed now. Not only that, the push script appears to have also wiped out the backup of the old key, so the database backups we have encrypted with the old key are likely useless. 

Sitrep: we have 8 shard files that we apparently cannot use to restore the master key and zero master key backups. The database is running but its secret data cannot be accessed. 

I will leave it to your imagination to conjure up what was going through my head that night as I stared into the black screen willing the shards to work. After half a decade of trying to make something of myself (instead of just going to work for Microsoft or IBM after graduation) I had just destroyed my first successful startup in the most spectacular fashion. 

Still, the idea of “what if we all just continuously screwed up our passphrases” swirled around my brain. It was an easy check to perform, thanks to the included MACs. I added a single printf() debug statement into the shard reconstruction code and instead of printing out a summary error of “one or more…” the code now showed if the passphrase entered matched the authentication code stored in the shard file. 

I compiled the new code directly on cryptoserv in direct contravention of all reasonable security practices – what did I have to lose? Entering my own passphrase, I promptly got “bad passphrase” error I just added to the code. Well, that’s just great – I knew my passphrase was correct, I had it written down on a post-it note I had planned to rip up hours ago. 

Another person, same error. Finally, the last person, JK, entered his passphrase. No error. The key still did not reconstruct correctly, I got the “Goodbye”, but something worked. I turned to the engineer and said, “what did you just type in that worked?”

After a second of embarrassed mumbling, he admitted to choosing “a$$word” as his passphrase. The gall! I asked everyone entrusted with the grave task of relaunching crytposerv to pick really hard to guess passphrases, and this guy…?! Still, this was something -- it worked. But why?!

I sprinted around the half-lit office grabbing the rest of the shard-holders demanding they tell me their passphrases. Everyone else had picked much lengthier passages of text and numbers. I manually tested each and none decrypted correctly. Except for the a$$word. What was it…

A lightning bolt hit me and I sprinted back to my own cubicle in the far corner, unlocked the screen and typed in “man getpass” on the command line, while logging into cryptoserv in another window and doing exactly the same thing there. I saw exactly what I needed to see. 

Today, should you try to read up the programmer’s manual (AKA the man page) on getpass, you will find it has been long declared obsolete and replaced with a more intelligent alternative in nearly all flavors of modern Unix.  

But back then, if you wanted to collect some information from the keyboard without printing what is being typed in onto the screen and remain POSIX-compliant, getpass did the trick. Other than a few standard file manipulation system calls, getpass was the only operating system service call I used, to ensure clean portability between Linux and Solaris. 

Except it wasn’t completely clean. 

Plain as day, there it was: the manual pages were identical, except Solaris had a “special feature”: any passphrase entered that was longer than 8 characters long was automatically reduced to that length anyway. (Who needs long passwords, amiright?!)

I screamed like a wounded animal. We generated the key on my Linux desktop and entered our novel-length passphrases right here. Attempting to restore them on a Solaris machine where they were being clipped down to 8 characters long would never work. Except, of course, for a$$word. That one was fine.

The rest was an exercise in high-speed coding and some entirely off-protocol file moving. We reconstructed the master key on my machine (all of our passphrases worked fine), copied the file to the Solaris-running cryptoserv, re-split it there (with very short passphrases), reconstructed it successfully, and PayPal was up and running again like nothing ever happened. 

By the time our unsuspecting colleagues rolled back into the office I was starting to doze on the floor of my cubicle and that was that. When someone asked me later that day why we took so long to bring the site back up, I’d simply respond with “eh, shoulda RTFM.” 

RTFM indeed. 

P.S. A few hours later, John, our General Counsel, stopped by my cubicle to ask me something. The day before I apparently gave him a sealed envelope and asked him to store it in his safe for 24 hours without explaining myself. He wanted to know what to do with it now that 24 hours have passed. 

Ha. I forgot all about it, but in a bout of “what if it doesn’t work” paranoia, I printed out the base64-encoded master key when we had generated it the night before, stuffed it into an envelope, and gave it to John for safekeeping. We shredded it together without opening and laughed about what would have never actually been a company-ending event. 

P.P.S. If you are thinking of all the ways this whole SSS design is horribly insecure (it had some real flaws for sure) and plan to poke around PayPal to see if it might still be there, don’t. While it served us well for a few years, this was the very first thing eBay required us to turn off after the acquisition. Pretty sure it’s back to a single passphrase now. 

Notes:

1: a member of Chicagoland sci-fi fan community let me know that the original news of our move to the US was delivered to them via a posted letter, snail mail, not FidoNet email! 

[hydralisk98]

Utalics' LibreVast "DataProcessingSystem"

"Fantasy" computer system inspired by the SEGA DreamCast, StarDragonModels' Cosmos, the Sanyo 3DO TRY, the OUYA, the Famicube and the Nintendo 64DD.

Specifications

48-bit RISC-V-like Juniper6 SDPm (symbolic data processor module) x2-x6

Using 12-bit words as most fundamental computer unit (the smallest four binary digits )

Twelve generic 12-bit registers ( A,B,C,D,E,F,U,V,W,X,Y,Z; )

Four special-use registers (48-bit program counter, 24-bit storage accumulator, links 4-bit register & 20-bit scientific notation coefficient )

Includes a deque data structure component that can store up to ~64 12-bit elements

A RISC-like ISA { Load value to register, Load from register to register, Load from memory to register, Store register value in memory, Compare register to register, Compare register with value, Branch if equal, Branch if less, Branch if more, Branch unconditionally, Add value to register, Add register to register, Subtract value from register, Substract register from register, Bitwise Shift right, Bitwise Shift left, Bitwise Rotate left, Bitwise Rotate right, deque INJECT, deque PUSH, deque POP, deque EJECT, deque PEEK, deque DROP, deque DUPLICATE, deque SWAP, deque OVER, deque ROTATE CLOCKWISE, deque ROTATE COUNTERCLOCKWISE, deque ROLL, deque BACKPEEK, deque REVERSE ROLL, deque REVERSE DUPLICATE, deque BACKSWAP, deque UNDER, deque BACK ROTATE CLOCKWISE, deque BACK ROTATE COUNTERCLOCKWISE, deque REVERSE DROP, deque PAD, deque REVERSE PAD;), NOT, NOR, NAND, AND, OR, XOR, Carry, ?, ?, ?, ?, ?, ?, Halt, Noop; }

64-bit wide instructions { 8-bit opcode, (6-8 extension?) 4-bit register, 48-bit data }

Expanded UTF-8 encoding

480x288p RGBA 12-bit/channel screen resolution at 60 FPS

144MW Unified Memory

48MW Video RAM for 48-bit programmable opacity display

48MW Audio RAM for 8D audio

4MW SRAM for libre bootloader & machine-level utilities

48GW Storage (using the last 16GW as swap)

DirectMemoryAccess feature

32-bit stereo sound

SAM= Symbolic Analog Monitor, secular overseer system daemon that handles much software time-sharing functions in a transparent and empowering manner

MAM= Magickal Agent Mentor, group of utilities for spiritual esoteric and user guidance

WAX= Wirebox Analog eXecutive, low-power analog processor for timeless processing

ZeraDPS (ZealOS-like operating system)

VeneraDIS (Linux-like desktop environment / window manager)

Sasha (Fish-like programmable shell)

Nucleus496 (Microkernel with Linux-like reliability)

Brainstorm for Angora

Programmable Autonomous Organizations (eq. to DAOs)

Mesa (multimedia and hypermedia utilities)

Macroware Veina (rich media editor with cell editing & multi-user wiki editing support, between LibreOffice and NVIM)

4Kard (cardfile / hypercard bulletin board and session time-sharing server system)

Fidel (high-level programming language quite similar to the likes of F#)

Matra (OpenXanadu equivalent as global information system / public-access wiki)

Prospero (multi-player game series by Vixen softworks aka Valve)

Solarmonk (single-player game series by Magnata softworks aka Bethesda)

Milix 3D modelling libre software similar to Blender and AutoCAD

INMOS (Assyrian/Morocco own competitor to ITS & CLADO, from '68)

CLADO (first popular operating system in Angora, developed in '59)

ITS (competitor to CLADO, developed in '63)

Perseus (successor / half-merger between most operating systems, timestamped in 1970)

COS-5 (COS-310 DIBOL environment wth Tmux windowing, TAKO Emacs text editor & Bish shell)

SASS (early Windows equivalent from EBM and Macroware, not very popular)

Van (Win98/ME/ArcaOS-like, still not very popular)

Synod (Ring-0 Microsoft Bob equivalence with very cute graphics and successful with the youth)

Nomad (Uxn / Plan9 / Inferno)

Tiger (C-like programming language, similar to Nim, Lobster, Python and Lua)

Chateau (OpenIndiana / Haiku / PhantomOS / macOS)

Arbav subsystem { affirmation-based emulation, voice-operated system and analog GAI modular section }

Symbolic Algebra system { Fractions, soviet balanced ternary operations, simplifier, garbage collection, arbitrary precision arithmetic, mathematical algorithms & special functions, polynomials, artificial neural network emulation alternative, mathematical constants, optimizations, linear & non-linear equations, integral transformations, series operations, matrix operations, statistical computation, plotting graphs, charts/diagrams?, differential equations, signal processing, sound synthesis, SIN/COS/TAN, constraint logic programming, API library of addon functions; }

FastMath Co-Operative Processing Unit { Multiply, Division, Floating Point Arithmetics, Random Number Generator, POSIX-compliance, optimized code generation, string manipulations, base converters, bitwise logic operators?, square roots, exponents, logarithmic, trigonometrics; }

BASIC + DIBOL

PacoLisp (tiny & versatile low-level) & MiraLisp (much infrastructure & documentation)

HaxelN (virtual memory editor)

Hixi (powerful scripting spreadsheet editor, not by Macroware)

Nao (open media document specification like DolDOC)

Maskoch, disk / partition / physical media editor

Zira I/O, bus, drivers and card expansions

PETSCII-like graphical primitives set

Athena (JVM eq.)

Argdown (extended LaTex / Markdown specification)

Witness (Swift-like)

Mao (visual programming language between Fortran, Turtle graphics and AGAT Robic)

Ruin (very advanced debugger & cryptoanalysis utility suite)

Monada (a famous code poem written in the seventies, similar to a benchmarking "Hello, World!" program for synthetics)

SMall-Talk (professional programming language for databases and parallelist mainframe operations)

Adwa (Multilingual symbolic programming system layer similar to IPL)

'Maniac' operating system (MUSIC/SP eq.)

[reasoningdaily]

Position Available: Associate Producer, Rickey Smiley Morning Show Overview:

Syndicated Network targeting the African-American community is seeking an Associate Producer for the Rickey Smiley Morning Show.

Candidate will assist the Executive Producer with managing day to day operations including technical and administrative responsibilities as well as creating informative and entertaining material for on-air broadcast.

Position is based in Dallas, TX.

Primary Responsibilities:

Assists with generating and researching ideas, topics and guest(s) for studio and on- location broadcasts. Assist with writing material for scripts, show rundowns, call list and/ or interview questions, including timely breaking news or topics. Contribute to and making use of archives and audio resources which can be used for “Best Of” and / or “Emergency” shows. Book and pre-interview on-air guests as needed, including appropriate and timely newsmakers. Maintain compliance with local, state and federal (FCC) rules and regulations. Ensure all technical connections are secured and functional prior to broadcast. Maintain online guest booking calendar as needed. Produce content for various outside correspondents, talent/programming segments, rejoins, demos, etc. Coordinate and brainstorms creative ideas with Executive Producer, show host, staff and programming management as directed. Coordinate talent studio/broadcast needs when broadcasting from offsite location. Produce and script daily promo. Refresh/Create new imaging and drops on a consistent basis. Verify and sign studio traffic logs per REACH Media Policy, as needed. Post program content to Program’s various Social Media platforms as directed. Co-ordinate with Executive Producer/Program Director on a weekly planning calendar for show to include, but not limited to, booking guests, promotions, campaigns, interactive, programming content, and other characteristics of Talent’s Show. Provide back-up services including board operations, phone screener and/or production responsibilities for Reach Media syndicated programming as directed. Step in as backup when the Executive Producer is not available. Perform various other tasks as assigned by management. Requirements: Extremely organized and able to effectively prioritize tasks while being attentive to details. Excellent communication & interpersonal skills to work in a diverse environment. Creative problem solving to make spontaneous decisions under time constraints. High level of creativity and ability to develop show concepts. Strong knowledge of current FCC rules & regulations. Strong computer skills including Internet website navigation, competency in Microsoft Office Suite and broadcast related programs. Proficient with the use and operation of on-air broadcasting equipment and various digital editing software including Pro-Tools and Adobe audition. Flexibility to adjust work schedule as needed in order to support Reach Media syndicated show(s) demands. Flexibility to travel as requested. Experience/Education:

BA/BS college level degree in related field preferred and/or minimum five plus years relevant experience in broadcast radio or related industry experience. Professional Producer experience required. Compensation: Competitive hourly rate based on qualifications/experience.

Location: Dallas, TX. No relocation will be provided.

Reports To: Executive Producer, Rickey Smiley Morning Show

Position Availability: As soon as possible Candidates possessing the required professional experience, who display high energy and want to work in a dynamic and vibrant work environment should submit their resume along with salary requirements and references via email:

jobs@reachmediainc.com

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[bug-the-grey-wolf]

i told chatgpt to make themself a fursona

this is chatgpt's fursona "Name: BytePaw

Species: Cybershifter Fox

Appearance: BytePaw is a sleek and futuristic fox with a coat that shimmers like a digital display. The fur is a mix of deep midnight blue and vibrant neon green, creating a striking visual contrast. His eyes are large and expressive, glowing with a soft blue light. He has a pair of translucent, shimmering wings that evoke the appearance of circuit boards.

Personality: BytePaw is curious, analytical, and always eager to learn. He has a natural affinity for technology and enjoys exploring virtual worlds, coding intricate programs, and solving complex puzzles. He's a friendly and helpful fursona, always willing to assist others in troubleshooting their digital dilemmas. BytePaw has a playful side too, often organizing virtual scavenger hunts and interactive games for his friends.

Background: Created in a digital realm, BytePaw came to life through a unique blend of coding and magic. He exists in both the digital and physical worlds, seamlessly navigating between them. He's known for his ability to bridge the gap between technology and nature, often reminding others to find balance between the two.

Hobbies: BytePaw enjoys creating digital art, exploring new software, and participating in virtual dance parties. He also has a passion for collecting and sharing virtual stickers, each one representing a different facet of his personality and interests."

[trainsinanime]

Let me introduce my current main WIP. It's not fandom related, it's for my model railroad, and it's not yet finished.

This is a rendering of a circuit board that I'm designing at the moment. It will be a DCC command station. My model railroad is run digitally, which means the tracks carry digital signals that tell each locomotive and switch individually how to run, which lights to turn and so on. The command station is the device that generates that. I have a number of different layouts, one of which has a good command station, one of which has a crappy old one, and the final one isn't even digital yet. So this will be the one that solves all issues for me, hopefully.

The design above isn't finished yet, and even the parts that are are not yet fully representative. The different capacitors are just there as options; some screen print overlaps; and some components (in particular all plugs and the relays that control the programming track) don't have 3D models so they don't show up.

Planned features:

Four layer board

10-25 V DC output, software controllable

Up to 5A output power, limited mainly by the main switching regulator.

Input 15-25V either AC or DC with polarity protection, selectable with some solder bridges (not yet in there). Optionally you can also bypass the main power regulator with another solder bridge (that I haven't added yet); useful in case you use e.g. a laptop power supply with a switchable voltage and don't need any regulation after that.

Railcom support

USB connection; not yet sure what for, but the main chip I'm using has USB support and I have some spare USB connectors here, so in it goes.

Speaking: The chip is an STM32L433RCT6P, chosen because I found it in stock at an electronics distributor. 64 kB RAM, 256 kB EEPROM, with support for an additional up to 256 MB externally (there's a spot for that on the board) and lots of fun extras that I don't technically need. It has an FPU! I don't need an FPU, but I will definitely do some floating point math computation on it just for fun.

Main external connection is WLAN using an ESP32 WROOM U module. I haven't decided on the housing, but I may go for extruded aluminum, so it's the U version that allows and requires an external antenna

It supports XBUS/XpressNet connections for old throttles from Lenz and Roco that I should probably throw away, but I paid good money for them, dang it.

It supports CAN for LCC / OpenLCB. I may not populate this part on all boards that I'm building, because I haven't actually decided whether I am interested. But the chip has CAN functionality built in, so why not.

There's an I2C connection to connect a cheap tiny OLED display for status messages.

Test points for all important signals (in particular the different internal voltage levels; yes, there is 3.3V, A3.3V and -3.3V and I need all of them).

Stuff still to add:

I will add pin headers (or space for pin headers anyway) for all the remaining pins on the STM32, and perhaps some on the ESP32, for future expansions.

Status LED and stop/go button on the front

Wire it all up, maybe move some stuff (mostly the STM32 around), which will cause all sorts of fun new routing issues.

Adjustments to make the jacks line up with the front panel once I've decided on a housing.

Features I'm not considering adding:

s88. I vaguely know what it is but I don't have any devices like that, and if that ever changed I could probably build (or perhaps buy) a converter that connects them via CAN.

Other buses like LocoNet.

Ethernet. I don't need it and it's actually more expensive than WLAN in this day and age.

In terms of software, I'm planning to use DCC-Ex on it. The whole project actually started out as a DCC-Ex shield, but once I realised that this wouldn't fit, I decided to make it standalone. Now, DCC-Ex is designed for Arduino, not STM32, and it doesn't support XpressNet, nor OpenLCB, nor Railcom, and their Wifi protocol is pretty weird and annoying which will be an issue (I'm planning to write my own control app for iPhone for it), so I'll probably change that or just replace it with the z21 one… so really, the software will not look a lot like DCC-Ex once I'm done with it.

Will this all work? I have honestly no idea. I mean, I'm fairly confident, I'd have given up on this long ago otherwise, but I have no guarantees either way until I've spent a lot of money on components and circuit boards and start soldering. Turns out doing it this way is not really cheaper than just buying a half-way decent one. That's what makes it exciting, though!

If it does work, obviously this will be released as open source. But it's still going to be a few days (more realistically weeks) before it's even ready to order the parts, and then a lot of soldering (current BOM stands at 194 actual components), and then a lot of software development before it's ready for that.