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Update on NIST\'s Post-Quantum Cryptography Program
Rozluštil jsem nejtajemn?jší text sv?ta, tvrdí v?dec. Vojni??v rukopis je prý ženskou p?íru?kou pro královnu
Policie zatkla cizince, do bankomatu montovali ?te?ku karet
Jak tvo?it a pamatovat si hesla (2019)
P?ehled kvalitních bezplatných bezpe?nostních program?
P?ehled bezplatných silných antivirových a dalších bezpe?nostních program?, které vám mohou pomoci udržet vaše citlivé informace v bezpe?í.
How to encrypt email (Gmail, Outlook iOS, OSX, Android, Webmail)
So you want to start encrypting your email? Well, let’s start by saying that setting up email encryption yourself is not the most convenient process. You don’t need a degree in cryptography or anything, but it will take a dash of tech savvy. We’ll walk you through the process later on in this article.
Alternatively, you can use an off-the-shelf encrypted email client. Tutanota is one such secure email service, with apps for mobile and a web mail client. It even encrypts your attachments and contact lists. Tutanota is open-source, so it can be audited by third parties to ensure it’s safe. All encryption takes place in the background. While we can vouch for Tutanota, it’s worth mentioning that there are a lot of email apps out there that claim to offer end-to-end encryption, but many contain security vulnerabilities and other shortcomings. Do your research before choosing an off-the-shelf secure email app.
If you’d prefer to configure your own email encryption, keep reading.
Google: Security Keys Neutralized Employee Phishing
Security Keys are inexpensive USB-based devices that offer an alternative approach to two-factor authentication (2FA), which requires the user to log in to a Web site using something they know (the password) and something they have (e.g., a mobile device).
Crypto gripes, election security, and mandatory cybersec school: Uncle Sam´s cyber task force emits todo list for govt
The report [PDF], compiled by 34 people from six different government agencies, examines the challenges facing Uncle Sam´s agencies in enforcing the law and protecting the public from hackers. It also lays out what the government needs to do to thwart looming threats to its computer networks.
Let´s (not) Encrypt
If you´ve been following the news for the last few years it will come as no surprise that the Justice Department is not a fan of the common man having access to encryption.
The report bemoans the current state of encryption and its ability to keep the government from gathering and analyzing traffic for criminal investigations. The word ´encryption´ comes up 17 times in the report, not once in a favorable light.
In the past several years, the Department has seen the proliferation of default encryption where the only person who can access the unencrypted information is the end user, the report reads.
The advent of such widespread and increasingly sophisticated encryption technologies that prevent lawful access poses a significant impediment to the investigation of most types of criminal activity.
Quantum computing revenue to hit $15 billion in 2028 due to AI, R&D, cybersecurity
Cracking the Crypto War
Zimmerman and friends: ´Are you listening? PGP is not broken´
However, PGP´s creator Phil Zimmerman, Protonmail´s Any Yenn, Enigmail´s Patrick Brunschwig, and Mailvelope´s Thomas Oberndörfer are still concerned that misinformation about the bug remains in the wild.
Yenn tried to refute the EFAIL “don´t use PGP” on May 25, and the four have followed up with this joint post.
Personal encryption usage is increasing
Wah, encryption makes policing hard, cries UK´s National Crime Agency
Since 2010, communication service providers have migrated to encrypted services ´by default´, a process that accelerated following the Snowden disclosures, said the National Strategic Assessment of Serious and Organised Crime 2018
New law would stop Feds from demanding encryption backdoor
In the New Disney Pixar Movie Lightyear, Time Gets Bendy. Is Time Travel Real, or Just Science Fiction?
Spoiler alert: this article explains a key plot point, but we don’t give away anything you won’t see in trailers. Thanks to reader Florence, 7, for her questions.
At the beginning of the new Disney Pixar film, Lightyear, Buzz Lightyear gets stranded on a dangerous faraway planet with his commanding officer and crew.
Their only hope of getting off the planet is to test a special fuel. To do that, Buzz has to fly into space and repeatedly try to jump to hyper-speed. But each attempt he makes comes with a terrible cost.
Every time Buzz takes off for a four-minute test flight into space, he lands back on the planet to find many years have passed. The people Buzz cares most about fall in love, have kids and even grandkids. Time becomes his biggest enemy.
What’s going on? Is this just science fiction, or could what happened to Buzz actually happen?
Time Is Relative: Einstein’s Big IdeaBuzz is experiencing a real phenomenon known as time dilation. Time dilation is a prediction of one of the most famous scientific theories ever developed: Albert Einstein’s theory of relativity.
Prior to relativity, the best theory of motion we had was Isaac Newton’s mechanics.
Newton’s theory was incredibly powerful, providing stunning predictions of the motion of the planets in our solar system.
In Newton’s theory, time is like a single giant clock that ticks away the seconds in the same way for everyone. No matter where you are in the universe, the master clock will display the same time.
Einstein’s theory of relativity shattered the master clock into many clocks—one for each person and object in motion. In Einstein’s picture of the universe, everyone carries their own clock with them.
One consequence of this is there is no guarantee the clocks will tick at the same rate. In fact, many clocks will tick at different rates.
Even worse, the faster you travel relative to someone else, the slower your clock will tick compared to theirs.
This means if you travel very fast in a spaceship—as Buzz does—a few minutes might pass for you, but years might pass for someone on the planet you left behind.
Time Traveling Forwards—but Not BackwardsIn a sense, time dilation can be thought of as a kind of time travel. It provides a way to jump into someone else’s future.
This is what Buzz does: he jumps into the future of his friends left on the planet below.
Unfortunately, there is no way to use time dilation to travel backwards in time, into the past (as one important character talks about later in the film).
It’s also not possible to use time dilation to travel into your own future.
That means there’s no known way for you to travel into the future and meet your older self, simply by going really fast.
Time Travelers Above Earth Right NowTime dilation might seem like science fiction, but in fact it is a measurable phenomenon. Indeed, scientists have conducted a number of experiments to confirm that clocks tick at different rates, depending on how they are moving.
For example, astronauts on the International Space Station are traveling at very high speeds compared with their friends and family on Earth. (You can watch the space station pass overhead if you know when to look up.)
This means those astronauts are aging at a slightly slower rate. Indeed, US astronaut Buzz Aldrin, from whom Buzz in Lightyear gets his name, would have experienced a tiny bit of time dilation during his trip to the Moon in the 1960s.
Real-life astronaut Buzz Aldrin would have experienced a tiny bit of time dilation on his trip to the Moon in 1969. Image Credit: NASA
Don’t worry, though, the astronauts on the International Space Station won’t feel or notice any time dilation. It’s nothing like the extreme time jumps seen in Lightyear.
Aldrin was able to return safely to his family, and the astronauts up in space now will too.
To Infinity—and BeyondClearly, time dilation could have a serious cost. But it’s not all bad news. Time dilation could one day help us travel to the stars.
The universe is a massive place. The nearest star is 40,208,000,000,000 km away. Getting there is like traveling around the world one billion times. Traveling at an ordinary speed, no one would ever survive long enough to make the trip.
Time dilation, however, is also accompanied by another phenomenon: length contraction. When one travels very fast toward an object, the distance between your spaceship and that object will appear to be contracted.
Very roughly, at high speeds, everything is closer together. This means that for someone traveling at a high speed, they could make it to the nearest star in a matter of days.
But time dilation would still be in effect. Your clock would slow relative to the clock of someone on Earth. So, you could make a round trip to the nearest star in a few days, but by the time you arrived home everyone you know would be gone.
That is both the promise, and the tragedy, of interstellar travel.
This article is republished from The Conversation under a Creative Commons license. Read the original article.
Image Credit: Anton Filatov / Unsplash
Malware ZuoRAT infikuje routery Cisco, Netgear, Asus a DayTek a špehuje síťový provoz
As tech evolves, deepfakes will become even harder to spot – NPR
… UC Berkeley professor Hany Farid about the prevalence of fake images and information generated by artificial intelligence and other technologies.
Link to Full Article: Read Here
TickerWin Releases Report on ‘Booming of Computing Industry with Blockchain Technology’
The field of computing that we refer to as artificial intelligence, specifically machine learning and deep learning, has chiefly become viable in …
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2 Top AI Stocks Ready for a Bull Run | The Motley Fool
These technology stocks are well-positioned for an artificial–intelligence-focused future.
Link to Full Article: Read Here
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