Steve Gibson (79:06)
Last Thursday, January 15, let's Encrypt announced under their headline Six day and IP address certificates are generally available. They wrote short lived and IP address certificates are now generally available from let's encrypt. These certificates are valid. Get this LEO for 160 hours. Oh wow. Just over six days. That's in order to get yeah. In order to get a short lived certificate, subscribers simply need to select the short lived certificate profile in their Acme client. Short lived certificates improve security by requiring more frequent validation and reducing reliance on on unreliable revocation mechanisms. If a certificate's private key is exposed or compromised, revocation has historically been a way to mitigate damage prior to the certificate's expiration. Unfortunately, revocation is an unreliable system, so many relying parties continue to be vulnerable until the certificate expires. A period as long as 90 days. Well, yeah, 90 for them. With short lived certificates that vulnerability window is greatly reduced. Short lived certificates are opt in and we have no plan to make them the default at this time. Subscribers that have fully automated their renewal process should be able to switch to short lived certificates easily if they wish, but we understand that not everyone is in that position and generally comfortable with this significantly shorter lifetime. We hope that over time everyone moves to automated solutions and we can demonstrate that short lived certificates work well. Our default certificate lifetimes will be going from 90 days down to 45 days over the next few years. As previously announced, IP address certificates allow server operators to to authenticate TLS connections to IP addresses rather than domain names. Let's Encrypt supports both IPv4 and V6 IP address certificates must be short lived certificates, a decision we made because IP addresses are more transient than domain names, so validating more frequently is important. You can learn more about our IP address certificates and the use cases for them from our post announcing our first IP certificate. We'd like to thank the Open Technology Fund and Sovereign Tech Agency along with our sponsors and donors for supporting the development of this work. And as I said before, the shortening of the maximum lifetime of web server DV domain validation certificates will eventually drive GRC my company to use let's encrypt Free certificates. Once I switch to their solutions, I will definitely establish a periodic voluntary payment to them, much as I have with Wikipedia. As I mentioned at the top of the show, since I feel that it's important to support the infrastructure that makes that possible. Even if the entire necessity of any of this is something I could not disagree with more, so be it. It's never been clear to me who has such a problem holding on to their web servers private keys. All indications are that the entire thing is a made up problem. Remember that even if even if a bad guy could somehow arrange to obtain a valuable domains certificate, it's not as if just having that in any way allows them to impersonate the target site. They must still somehow arrange to cause their victim's Internet traffic to believe that it's going to the real domain's IP address while it is instead being rerouted to a spoofed server where the stolen certificate resides. So you need either a DNS compromise also, or some physical interception and rerouting of the actual packet traffic must be achieved. None of which is easy to do either. So if this was, if this was ever happening, if it ever happened, it would be big news. We would know about it instead. Crickets. And I get it that the let's Encrypts guys need to say that revocation is broken. I understand that, but that is no longer true. I have a picture of going to revoked.grc.com on the screen. Anyone's invited to go to revoked.grc.com it says error sec underscore or yeah, error code Underscore Sec underscore Error Underscore Revoked underscore certificate. No browsers are fooled any longer and any of our long term listeners know that I was on to all of this, pointing this out and drawing attention to this as loudly as I could before anybody else was doing so. I looked a little foolish at the time, like I was tilting at windmills, saying that this was a problem. You know, what's the big deal? I created that revoked.grc.com site to clearly demonstrate that none of this was working at the time. It is now everywhere and it's even been, you know, solved quickly on the client side with no privacy compromise thanks to Bloom filters which we talked about in detail for this specific application. And just that I'm. Just so that I'm clear, I think it is truly great that let's Encrypt is now offering six day tls, DV and IP validated certificates for those who feel they need them. I don't know why anyone would, but okay, great. It's the being forced to use shorter life certificates, whether for the web or for code signing, that feels so wrong and regressive to me. I don't need a nanny. Few of us do. And as I've said, if anyone did, like if this was actually a problem, it would be making news. The only news it's making is that it's, you know, discomforting everybody who's having to use these increasingly short lived certificates for no apparent reason. Okay, I. Several news outlets are, are reporting have reported on something that caught my attention mostly because it's so sad and in my opinion wrong minded. The news is that the country of Iran plans to extend its current disconnection from the Internet which began in the evening of January 8th, their time permanently, which hard to even believe but yes, technical reports have indicated that efforts are being made to restrict the use of messaging apps for internal use only. All satellite dish antennas of all ilk are being gathered up and technology is being finalized to identify network traffic that transits across Starlink and other space based providers. Iran's ruling theocracy, you know, it is what it is. It's been clear that the influence of the west largely through, you know, although I, I guess I would say largely, though not exclusively brought to Iran by the Internet, it's been a challenge to the nature of its historical theocratic rule. But Iran's population today is not old. Its median age is somewhere between 33 and 34, meaning that half of Iran's population is younger than 33 or to 34 somewhere in, in that range. And currently about a quarter of the population are children under the age of 15. So cutting that population off from all external Internet access certainly seems, you know, destined to fail in the long run. I, I, okay, I just wanted to report on that. I imagine we'll be looking at that in the future, if in fact that continues. I have, as I mentioned at the top of the show, I've received from one of our listeners and a spinrite user a pair of charts that, that I had never seen before. And I got a big kick out of them. I wanted to share them. The listener's name is Don with two N's. Don Edwards. He wrote. Dear Steve, you've often mentioned how spinrite improves SSD performance and we've seen the results of its benchmark tests. But here's a different view. My friend panicked when his computer would not boot. It has a crucial 480 gigabyte SSD boot disk and a Seagate 1 terabyte hard drive data disk. Not knowing whether the problem was hardware related or not, I rescued the drives. He meant, you know, removed the drives and connected the SSD to my own desktop PC to see if the data was intact. All appeared fine. So I ran HD Tune to look at the smart data and run its benchmark. And he included, he, he included the, the chart for the before spin right alongside the chart for the after. He said the drop in performance shown in the HD Tune Pro chart on the left, particularly at the start of the drive. Actually it's about the first two thirds, he said Was troubling. So I ran Spin right six one on level three and it took around three hours. I could see it having trouble writing to the drive. But in the end no data was lost afterward. And he says see the post Spin right chart on the right. It's clearly fixed. I backed up all the data files from his hard drive and put both drives back in the PC. When we plugged in all the cables and screens, his PC worked. So whether it was the SSD or a bad cable connection or something else, I don't know. But what I do know for sure is that his SSD is working much better than before. The graphs show it and he is very relieved. Keep up the good work. Don Edwards Johannesburg, South Africa and Leo, you can see there on on the left the ever many people are familiar with HD Tune. This is showing the drives speed across its mass storage surface. Essentially. So from 0 gigabytes to 480 gigabytes and the the top of the chart is 4450 megabytes per second. You would expect a solid state drive Being solid state right would just be a. A straight line. People who have run HD Tune on spinner on spinning drives see a characteristic downward stepping in performance. Typically going to about half speed by the time they get to the inner cylinders of the drive. Because those cylinders having a a shorter circumference the data transfer rate is much lower because they have many fewer sectors here. Instead on this well used SSD we see like. Like deep downward spikes coming Almost down to 50 megabytes per second from the normal of around well looks like about 425 and it's really bad for past the. Past the halfway point and then it goes up high. And in fact what's interesting then is if you look at the chart on the right you'll see first of all it's all gone from. It's got completely fixed from a running a spin right level three on the drive you do see a little bit reduction in an area that used to be. That used to look full speed. The reason is and this surprised us when we began working with spinrite those areas the the on the chart on the left were not actually being read. That's not actually 425 gigabytes per second. Those areas had been trimmed so the drive knew they had never been written to. And so it was just giving back zeros. It was sending zeros back after running Spin right across the drive. It those areas were written to by Spinrite as soon as the operating system re trims the drive which happens, you're able to do it on demand by command if you wish. Just running the little optimize command in Windows does a re trim on the drive, then it'll run right back up to flatline at maximum speed. But what really matters here is that a drive that was running like what, 18 as fast as it should. And. And it wasn't booting because there were some errors which didn't show up in. In Don's just quick mounting of the drive where it looked like he saw all the files. Spinrite fixed those problems and also restored the drive to its original performance. Anyway, just a very cool set of charts, right? Using a third party utility that many of our listeners are used to. Okay. Jeff Xtrand wrote, you can find. Oh, this is so cool. You can find the advertising ID on Roku via some secret menus on the remote. You can do some convoluted button pushes to access these menus. One of them contains the advertising id. I do not remember which one. Then he provided a cheat sheet. So. And it happens that, I mean I played with it. It's the secret screen number two is where the advertising ID is found. This all relates to us talking about the. The California legislation where you re. You're able to give Cal privacy this information and then they provide it to the data brokers using that information to help find you in order to force them to scrub your data and to no longer offer it for sale. So if you have a Roku, you press the home button five times, then up, right down, left up. So you sort of go around the. Around the arrow pad clockwise home button five times, then up, right down, left up, and sure enough, that suddenly switches the screen. And there was my advertising id, which was a grid formatted identifier, you know, four sets of hyphens of. With hex code, hexadecimal code of various sizes. So there's a developer setting screen, a wireless secrets screen, a secret screen, secret screen number two. That's where the advertising ID was. The an HDMI secret screen, a platform secret screen channel info menu and a reboot shortcut, although I'm not sure how much of a shortcut that is. You have to hit the home button five times, then up, then the rewind button twice and the fast forward button button twice. It's pretty much easier just to use the normal menus. Anyway, I got a link to the YouTube video that this guy found for us. Yeah. And you know, there's a bunch of other information as is generally the case. And I'm sure you've seen this too. Leo. These sorts of hidden Easter eggs are initially they initially look like, oh, you found some massive treasure trove. But it's kind of internal counters and stuff that doesn't don't really have much value.