Syn_Attck
@Syn_Attck@lemmy.today
- Comment on Elsevier 5 months ago:
Whatever the format, let’s hope it doesn’t end up having the extension .map
(minor attracted persons aka PDF file joke)
- Comment on Elsevier 5 months ago:
Wow, this is awesome, thanks!
- Comment on Elsevier 5 months ago:
Unless you know specifically what they’re adding or changing this wouldn’t work. If they have a hidden ‘barcode’ and you add another hidden ‘barcode’ or modify the image in a way to remove some or all of theirs, they’d still be able to read theirs.
- Comment on Elsevier 5 months ago:
You should spread that idea around more, it’s pretty ingenious. I’d add first converting to B&W if possible.
- Comment on Elsevier 5 months ago:
This is a great point. Image watermarking steganography is nearly impossible to defeat unless you can obtain multiple copies of the ‘same’ file from multiple users to look for differences. It could be a change of a single 10-15 pixels from one rgb code off.
rgb(255, 251, 0)
to
rgb(255, 252, 0)
Which would be imperceptable to the human eye. Depending on the number of users it may need to change more or less pixels.
There is a ton of work in this field and its very interesting, for anyone considering majoring in computer science / information security.
- Comment on Elsevier 5 months ago:
Good question. I believe “Print to PDF” isn’t actually “printing” it page by page as if it was a physical printer, but rather just saving the loaded PDF to a PDF file locally.
I’m not an expert in this field, but you can ask on StackExchange, or ask the author of MAT and exiftools, or do it yourself by making a PDF with a jpg file with your metadata, and then extract the image and let us know here - it would be useful information that I can’t find via search engines. I’m using a smartphone so I can’t do it, but if you do, note from the linked SE page is you won’t be able to extract the original file extension, so if you use your own .jpg with your own exif data, rename to .jpg when finished (I believe exif is handled differently based on file type).
There are multiple tools to add exif data to an image but the exiftool website has some good easy examples for our purpose.
exiftool -artist=“Phil Harvey” -copyright=“2011 Phil Harvey” YourFile.jpg
(do this as the first step before adding to the PDF)
- Comment on Elsevier 5 months ago:
Now that this is known, It’s not enough to remove metadata from the PDF itself. Each image inside a PDF, for example, can contain metadata.
There are multiple ways of removing ALL metadata from a PDF, here are most I know of.
It will be slow-ish and probably make the file larger, but if you’re sharing a PDF that only you are supposed to have access to, it’s worth it. MAT or exiftool should work.
- Comment on My favorite photo from my vacation! 6 months ago:
Thank you.
To anyone else, you’re welcome.
- Comment on [Serious] Why do so many people seem to hate veganism? 6 months ago:
For me it’s the high-horse holier than thou attitude most of them seem to carry in online conversations. I know a fee vegans and they are mostly fine in person after the first few months of radicalization, but I imagine they just suppress it in person to maintain the acquaintanceship and then bitch in their vegan echo chambers about how “my co-worker who knows I’m vegan had the audacity to order a hamburger and eat it in front of me knowing I’m vegan, does he know he’s destroying the world with that Burger… AITA?”
If you’re looking for scientific answers, good luck they, Inrhjnjbmost people stop worrying about micromanaging people after a few years of academia.
- Comment on Recognize the mother of Wifi 6 months ago:
RST
- Comment on Recognize the mother of Wifi 6 months ago:
802.11ac
pfft gtfo out of here we’re gearing up for a war.
LAN SENSING WALL PENETRATING XRAYS BABY! GOOOO 802.11bf
coming soon to an ISP near you
- Comment on Possible snipers seen at OSU. Administration says they're not snipers but should be treated like they are. 6 months ago:
I was unaware 40 protestors have been arrested. nonviolent?
- Comment on Possible snipers seen at OSU. Administration says they're not snipers but should be treated like they are. 6 months ago:
Welp, thankfully you have a very easy way to identify if you’re right or if you’re wrong.
If you wake up tomorrow morning and 24h news cycles are megaphoning the murder of innocent protestors, you were right.
If nothing happens, you’ll learn you were wrong, and hopefully you’ll learn from it.
- Comment on Why are SMS messages so expensive? 6 months ago:
Ah I should have taken into account that I am grandfathered in from the AT&T takeover. That makes more sense.
- Comment on Why are SMS messages so expensive? 6 months ago:
T-Mobile prepaid. Mint mobile is also very cheap, but I think there is one cheaper now.
- Comment on Why are SMS messages so expensive? 6 months ago:
85 per phone? did you get suckered into a contract+new “free” iPhone or something? I pay 40/mo for unlimited everything in the States but could be paying 25-30 if I wanted to switch providers.
SMS message costs are a scam, always have been. It takes like 1-2 seconds worth of talk time for the same amount of sending a text.
- Comment on I learned so much 6 months ago:
My 6th grade English teacher Mrs Cash was the hottest teacher in the school. She’d sit in a boys lap and then ask them to come to the board to answer a problem.
Later it came out publicly that much of the school administration and teachers, city council, and some of the religious leaders were involved in a swinger ring. Small towns get down.
#CashWasCash
- Comment on Listen, libs... 6 months ago:
WranglerStar, is that you?
- Comment on NSA ’just days from taking over the internet’ warns Edward Snowden 7 months ago:
Since some people are having issues with the site, here it is from the ACLU:
ACLU Statement on Congress Passing Bill that Massively Expands the Government’s Power to Spy on Americans Without a Warrant
This bill would reauthorize Section 702 surveillance for two more years without any of the necessary reforms to protect Americans’ civil liberties
WASHINGTON — The House of Representatives passed a bill today that will reauthorize Section 702 of the Foreign Intelligence Surveillance Act for two years, expand the federal government’s power to secretly spy on Americans without a warrant, and create a new form of “extreme vetting” of people traveling to the United States.
When the government wants to obtain Americans’ private information, the Fourth Amendment requires it to go to court and obtain a warrant. The government has claimed that the purpose of Section 702 is to allow the government to warrantlessly surveil non-U.S. citizens abroad for foreign intelligence purposes, even as Americans’ communications are routinely swept up. In recent years, the law has morphed into a domestic surveillance tool, with FBI agents using Section 702 databases to conduct millions of invasive searches for Americans’ communications — including those of protesters, racial justice activists, 19,000 donors to a congressional campaign, journalists, and even members of Congress — without a warrant.
“Despite what some members would like the public to believe, Section 702 has been abused under presidents from both political parties and it has been used to unlawfully surveil the communications of Americans across the political spectrum,” said Kia Hamadanchy, senior policy counsel at the American Civil Liberties Union. “By expanding the government’s surveillance powers without adding a warrant requirement that would protect Americans, the House has voted to allow the intelligence agencies to violate the civil rights and liberties of Americans for years to come. The Senate must add a warrant requirement and rein in this out-of-control government spying.”
In the last year alone, the FBI conducted over 200,000 warrantless “backdoor” searches of Americans’ communications. The standard for conducting these backdoor searches is so low that, without any clear connection to national security or foreign intelligence, an FBI agent can type in an American’s name, email address, or phone number, and pull up whatever communications the FBI’s Section 702 surveillance has collected over the past five years.
The House passed all the amendments to expand this invasive surveillance that were pushed by leaders of the House Permanent Select Committee on Intelligence (HPSCI), the committee closest to the intelligence agencies asking for this power. The bipartisan amendment that would have required the government to obtain a warrant before searching Section 702 data for Americans’ communications failed 212-212.
- Comment on NSA ’just days from taking over the internet’ warns Edward Snowden 7 months ago:
Cointelgraph is (was at least?) a reputable source for national security news.
Snowden chose Russia because the other option was life as a political prisoner without a chance at a fair trial. Egotist, sure, but at least we know what we know now. Can you imagine how fucked we’d be if he never leaked them?
And regardless of the source, (site or person quoted), what he’s saying is absolutely true. The NSA is about to be able to gather ALL mass communications and look at them whenever, without a warrant which was the only safeguard before.
I’m legitimately about to throw my tech into a fucking dumpster and get a dumbphone and a smartphone with all hardware removed besides what’s required by Briar.
Most will read this and think I’m being overly paranoid. When I talked about the FVEY (now 14EYES) surveillance dragnet before the Snowdon leaks, everyone thought the same.
- Comment on sleep paralysis 7 months ago:
try sleeping on your back
chronic sleep paralysis is the reason I tuck a thick blanket under me when I roll on my side, so I can’t turn to sleep on my back on accident.
The spinning wormhole at the foot of my bed was the last straw. No more ‘just ignore them and go back to sleep’ after that.
- Comment on Turn up the heat 7 months ago:
80F is 26.66667C
- Comment on Turn up the heat 7 months ago:
The virus after you take Tylenol
- Comment on YouTube’s ad blocker crackdown now includes third-party apps 7 months ago:
I manage a large network and ads are blocked at the edge of the network.
You must MITM all traffic and do some magic with stripping/injecting JavaScript then? Because every time I’ve tried with pihole, its just threads and threads of people saying its not possible with DNS blocking because the ads are served from the video servers.
- Comment on isopods are friends 7 months ago:
Roly-poly/pillbug vs isopod
- Comment on Progress! 7 months ago:
With that username, this photo is all you should ever comment.
- Comment on Progress! 7 months ago:
DMT already did it.
- Comment on Things are less overwhelming in the basement 7 months ago:
Literal torture. There’s a reason LSD proved to be an ineffective truth serum… What’s going on inside the head is far worse than what could possibly go on outside the head.
Always trip with someone with actual experience, kids. There are ways to escape a bad trip, so ask your trip-buddy how they plan to ease a trip that’s going south, and if they can’t tell you 5 things off the top of their head, they’re full of it. But the best way is to start small and ease into it. Once you’ve gauged the dose and purity, you can have a bigger trip next weekend.
- Comment on Am I going fucking crazy? (Regarding explicit songs being censored on various music streaming services.) 7 months ago:
Let’s refer to it as 2010, birth of Sir Citizens United, because if the large corporations want something to happen, or to not happen, they’re likely to get their way after after a year or two.
- Comment on I bought frozen BBQ eel and the best before date says LJ349. What does this mean? 7 months ago:
If you buy fresh tuna and the country of origin date code is MM/DD/YY while you’re DD/MM/YY or YY/DD/MM or YY/MM/DD you could end up with year-old fish or worse. So yeah.
And no, it won’t always be something easily detectable by look and smell like fish.
