Computer Scientists Achieve ‘Crown Jewel’ of Cryptography | Quanta Magazine

I have worked on projects involving cryptography in my past. I understand some of the basic concepts that provide the security in cryptographic systems enough to be dangerous when discussing the topic, but I never became an “expert” on the subject. I found it a difficult subject to tackle, requiring a greater level of dedication and/or level of smartness than I was capable of. Nevertheless, it is a fascinating topic. I wrote about the extent of my exposure to the topic here.

https://www.quantamagazine.org/computer-scientists-achieve-crown-jewel-of-cryptography-20201110/

Transitions

We are in a seasonal transition in our neck of the woods. It is a truth – as true as anything and everything else that is real and factual. There is no way that somebody can refute my statement, right? Winter is around the corner in Maryland.

Unfortunately, facts seem to be more and more difficult for people to accept in today’s world. It is the belief that counts, and a lot of our actions will be based on these beliefs. I could have edited those pictures I am showing you, or even picked pictures out from my collection from a different year, to state something that is untrue. You believe that I will not do that. There is an element of trust involved. You believe that I will not lie to you.

It is a sad thing that active efforts are being made to destroy the trust that people in the US have in their electoral system. When this happens, the truth, and the facts, do not matter. The lies are considered credible. And the lies can become a matter of faith. Living in a virtual world of computers and social media makes this process even easier. Facebook’s algorithms have no means to separate out truth from lies. AI technology is also not necessarily based on starting from truths. Scientific truths have no basis in a virtual world, facts have no foundations there. These days you can argue that the world is flat, that man did not land on the moon, and that a conman won this election – and the algorithms in the computers will say, fine, we do not care if this is true or not, and we will proceed as if this is fact.

All real facts point to the successful and honest conclusion of the election process in the US, a process that was as fair as it could be. Unfortunately, apparently 70% of Republicans, at this time, believe that the election was really won by the candidate who actually lost it – the two-bit huckster, the conman. Unfortunately, this fantasy is also not explicitly repudiated by the people in power who are in a position to state the facts. They are afraid. They are hypocrites who look out only for themselves. People lie, these lies are amplified, and these lies are believed because of the kind of world we live in. The facts have no place here. There is more chaos, uncertainty, and anxiety, in the transition that is taking place in our country because of all of this. This is nuts!

The Late Burst of Color

I have been observing the autumnal shedding of the leaves by the crape myrtle tree in our backyard for many years. It happens a little later in the season than for most other trees in our neck of the woods. The burst of colors when it happens is phenomenal. It gets your immediate attention. I do not think I have focused on this phenomenon as an object of photographic record-keeping in the past. I thought I would shares some of these pictures this year.

This is a view of the tree from one of the bedrooms at the peak of the colors.

This is a short sequence of pictures showing the change in the appearance of the tree during this turn of the season.

Here is a picture of the tree taken at sunset. The sky was a shade of purple when I took the picture. The color of the sky changed immediately after that – here one moment, and gone the next!
Soon, it will all be gone.

A Sigh of Relief on Another Beautiful Sunday

We went back to Williamsport last Sunday. It was a beautiful morning – somewhat cold when we started our walk, but above 70° by the time we finished. We walked in the general direction of north and west, towards Dam 5. The river meanders a lot in this section. To be certain of the direction you are facing at any particular moment in time, you have to be paying attention to the direction of the rising sun and/or the shadows being cast across the trail. Beautiful morning!

We finally got to breathe a sigh of relief on Saturday. Four years of complete political chaos, and complete dysfunction in governance, will hopefully come to an end soon. I was going to add that four years of division will also come to an end, but that remains to be seen, given the attitude of the current resident of the White House towards the handling of his loss, and his approach towards the transition that needs to happen. This particular con game of his has finally reached its limit, even as he spews out absurd lies about widespread fraud in the election process. Even while some of us breath a sigh of relief, many are very unhappy. Even as some of us breath this sigh of relief, the cases of coronavirus rise in record numbers. People are also dying in large numbers. There is a lot of work that needs to be done at a national level to save ourselves.

Will end the blog on a happy note with the pictures from our walk.

The first few pictures were taken at the beginning of the walk. A faint mist was visible in the distance over the canal as we crossed the bridge on to the trail.

The skies were clear. The air was still. The reflections on the water were perfect. These are pictures of the Cushwa Basin,and of the Route 11 bridge over the Potomac river,taken as we departed the area of Williamsport.

Further along the trail, we found a place where there were steps that went down to the river.The majesty of the winding river was easy to appreciate from down beside it.

The clear and crisp morning light enhanced our experience of the trail, and our view of all that remains of the Fall foliage in these parts.

We turned to return back to Williamsport at a point where a dirt road led to a parking lot next to canal. Earlier on, I had considered driving to this parking lot, and walking along the towpath from this point onward. Seeing the condition of the road, I am not sure I would use this lot any time soon for that purpose.

I decided to swap lenses on my camera at about this point in the walk, and use the zoom lens for the rest of the trip. As I raised my head from the camera bag which was lying on the ground (over which I was changing the lens), I saw a deer standing on a rocky ledge on the other side of the canal. Why don’t you take my picture to make sure that you have attached the lens to the camera properly?, it seemed to be asking. That is exactly what I did.It is a magical place, this canal of mine!

Towards the end of the walk, we came upon our old reliable friend, the great blue heron. I had to take its picture.

We had to depart Williamsport quickly at the end of the walk because of another appointment that we had closer to home. I did not have time to take the picture of the Conococheague Aqueduct from the level of the creek as I had originally hoped to do. Now I have an excuse for making another visit to Williamsport sooner rather than later!

Getting Outdoors During a Time of High Anxiety

It is a time of reckoning for some of us as Americans. It is safe to say that there has never been a situation like this in the USA in the past. It is also tempting to say that there has never been an election like this in the USA in the past, but I do not know enough about American history to be sure about that. It is definitely true though that we as a country have been sinking into a dark hole the last few years, now accelerated by the coronavirus pandemic, and that we might have a chance during the next few days to grab on to something on the side, even as we fall further into the hole, to try to at least stabilize the situation for some period of time. Perhaps we could even attempt to climb out of the hole, but that might be too much to ask for in the short run considering how far we have fallen. There is always hope!

We have seen strategies for winning an election that have never been used to this extent in this country in the past. The electronic media has made it easy for official campaigns to distribute manipulated audio/visual content, content that is designed to deceive, content that supporters of the president lap up. The president himself spews out lies and misinformation. As Steve Bannon once said – “flood the zone with sh*t”. And, sadly, we tend to not see the truth even if it is in front of our faces because we live in our own bubbles. The republican party apparatus has also gone into high gear to try to disenfranchise voters, and to prevent votes from being cast and/or counted. Lawsuits have been filed, and more have been promised. Armed vigilantes try to intimidate voters and people going about their daily business. The US Post office is failing to deliver mail-in votes in a timely fashion. (The person in charge of the post office is a recent political appointee. His actions could lead you to believe that what is happening is deliberate.)

One worries about the possible aftermath of these elections in ways that one never did before.

We had to find relief from our anxieties in other activities. Last week was a bad time for our usual outdoor pursuits. I am still adjusting to the fact that the weather is turning colder slowly but surely. The cloudy and damp conditions killed all of my motivation to try to get out. It was finally the weekend by the time we overcame our reluctance to face the seasonal forces of nature.

We went out to Edwards Ferry on Sunday in spite of the fact that rain was expected later that morning. The weather was still OK at the time we got on the trail. As you can see from this picture of the lock house for Lock 25, there were still patches of clear sky to be seen near Edwards Ferry.

As we started our walk, we could see the rising sun behind us struggling to pierce through the clouds that were coming our way. It was, ultimately, an unsuccessful effort! The skies continued to darken as we walked north towards Whites Ferry. We finished the last couple of miles of the walk in light rain. I had to put away the camera in my backpack at that point. I don’t mind walking in light rain even though it tends to impair my vision somewhat because of the water collecting on my glasses. For that matter, I am not sure that even heavy rain would necessarily stop me on the trail. My friends and I rode our bikes in the pouring rain during our ride last year. It was done deliberately, and it was also fun!

It was somewhat anticlimactic to be on the trail after the autumnal change in foliage. Whatever bright colors there might have been on the trees are almost all gone in these parts. Bare tree trunks are visible everywhere.

The only remaining color in this section of the trail was mostly due to the presence of the pawpaw trees.

There is a certain beauty in foliage that is primarily yellow in color, but I think I might be feeling this beauty more intensely because of its transient nature. After all, I do not talk about the green trees all summer long – or, do I?!

And we got to see some strange looking fruit on the trail for the first time. I would be curious to know if anybody can recognize these.

That’s it for this blog. Tomorrow is election day. I am keeping my fingers crossed!

Autumn In The Year 2020

After all our attempts of the previous weeks, we finally did get to see some decent autumn colors. During a walk to Clopper Lake, we came upon a stand of trees beside the lake where the color was at it peak, or close to it. The light was just right for pictures like this.

We also made a trip to the Catoctin Mountain Park, up north near the town of Thurmont in Maryland, on Saturday. The place was packed with people by the time we got there. We had to park along the main road just outside the park in order to try to get to the visitor center and the trails. (The line of cars parked along this road was even longer by the time we left the park that afternoon.) The trails were also packed with hordes of people, some of whom had come in large groups. That was surprising to see during these times of COVID-19.

Because of the conditions on the ground, we decided to drive into the park instead of taking one of the trails at the visitor center, but still had difficulty finding a place to park within the park itself. The parking lots in there were also full, and there were also a limited number of such lots. The added frustration was that you had to drive away from the road to enter these lots, and then you would find that there was not even one parking spot available! We tried most of the lots. It was frustrating to have to drive through the colorful roads where the colors had just peaked and not have a place to pull over to take pictures. The pictures taken directly from the car (I would stop on the road itself if there was no traffic behind me) were pathetic. Fortunately, we had some luck towards the western end of the park.

In any case, here are some pictures of the park and surrounding areas. It was quite cloudy, and the quality of the pictures are representative of the conditions.



The colors of autumn last only a short time. We will be seeing a lot more brown tree trunks by the end of the week. When looking back at the pictures I have taken recently, I am also reminded that it was still green all around us when I started looking for the autumnal colors just earlier this month. Changes happen quickly during this time of year, and before we know it we will be experiencing the full force of winter.

I saw an interesting episode of American Experience recently. It was called The Gilded Age. This episode is set during the late 19th century. This was the period of time when the USA was being transformed from an agrarian society to an industrial one. This was the period of time when “capitalism” began to be favored in government, and wealth inequality, and power inequality, came into place in a systematic way. It is a fascinating story. It has only gotten worse since then, and one wonders how much further this phenomenon can persist until all hell breaks loose. This is a good episode to watch if you want to understand our history, and where it is we come from as a country. These days, one could be led to believe that the maintenance and furtherance of the capitalist creed is the primary goal and functional requirement of the US government apparatus, and that one should accept this as gospel truth if you were a true citizen of the USA. Know that this is not what the founding fathers were thinking of, or necessarily had in mind, and that such thought process is only a more recent invention being pushed forward by the people in power in order to try to maintain the status quo. Meanwhile, the inequalities only continue to get worse with time.

It Was A Foggy Morning In October

He he he… Perhaps some may mistake the title as a setup for a ghoulish October treat. What strange tale awaits?! Alas, it is only me, your boring neighborhood yakker, with more tales for the bored of mind.

This blog is about yet another bike ride. I thought my biking days for the year had come to an end. But Mother Nature has a mind of her own. She can be idiosyncratic. Thursday turned out to be a warm day, starting at about 60° in the morning. It was an unexpected opportunity for me to go looking for the colors once again, this time on a bike!

But the morning also turned out to be extremely foggy, as you see from my pictures. The fog presented a different kind of opportunity for picture taking, but perhaps not the best for showcasing colors. Nevertheless, it was a somewhat unique combination of conditions that ended up making this one of my slowest solo rides in a very long time. I kept stopping to take pictures! Without further ado, let me show some of them to you.

This is what it looked like as I approached Pennyfield Lock.

This is how it looked as I started the ride.

Here are some pictures taken as I headed south, in the direction of Washington, DC. I left the camera hanging around my neck and was stopping every few minutes to take the pictures. Any runner worth her (or his) salt would have easily covered ground faster than I was doing at this point.








This is where I turned back – Mile 9 on the towpath, the point at which Lock 11 of the canal is located.

These are some of the pictures taken on the way back. The fog was beginning to lift, but it was still cloudy.









The sun finally made its appearance towards the end of the ride shortly after noon. I could glimpse the sunlight as I got close to Pennyfield Lock, at the end of the tunnel of trees that I was riding through.

I enjoyed the ride, but, as you can see, I achieved a mixed level of success in my attempt to find the colors of autumn. Nevertheless, I enjoyed the ride and whatever nature had to offer to me. It was certainly an experience that was unique to this season of Fall.