pk

Josef Lapka (2010)

Josef Lapka is a member of the Web Applications Team at Canterbury Christ Church University. Suraj will be giving a plenary talk entitled "StudentNET Portal", part of the Doing the Day Job session.




pk

Re: [manrs-community] Implementing Decentralized RPKI with Blockchain Technology

Posted by Brandon Z. on Nov 13

Hi guys,

In technical terms, RIRs can indeed configure IPs to become RPKI invalid.
However, my point is not to remove RPKI but to make it invalid.

This could happen; for example, RIPE was required to remove all IRRs
related to Russia (I'm glad RIPE has not done this).

Decentralization can address this issue; it's not just a hype concept.

Best,
*Brandon Z.*
HUIZE LTD
www.huize.asia <https://huize.asia/>| www.ixp.su | Twitter...




pk

Re: Implementing Decentralized RPKI with Blockchain Technology

Posted by Roman Tatarnikov on Nov 13

Brandon, I blockchain and BGP were discussed on NANOG some years ago, back
when the deployment of RPKI was brought up. Short answer - it won't solve jack
and will use tons of computation power.

I'm not really going to go into details, but essentially adding a band-aid
instead of adopting RPKI and addressing the issues with RIR is not the best
course of action.




pk

Re: Implementing Decentralized RPKI with Blockchain Technology

Posted by Francis Booth via NANOG on Nov 13

In such a scenario I’d argue for less automation to prevent such a rogue RIR from being able to cause such a disruption
to the Internet.

To expand on what Tom mentioned, Networks are not yet rejecting announcements with a NotFound validation. Even if such
an event did occur I’d be willing to bet most network operators are going to be leaning on their interpersonal
connections rather than automation to reestablish peering with networks....




pk

Re: Implementing Decentralized RPKI with Blockchain Technology

Posted by William Herrin on Nov 13

Hi Brandon,

That's not how blockchain works. Validation is time-bound and
irrevocable. Only the current key-holder can transfer the validated
material to another entity. Effecting such transfers requires minimal
computation, on the order of a few HTTPS transfers.

Under block chain, an RIR would not be able to revoke number
resources, not even for non-payment or fraud. And if the keys
associated with an address block were lost or stolen,...




pk

Re: Implementing Decentralized RPKI with Blockchain Technology

Posted by Jason Iannone on Nov 13

Imagine decentralizing x.509.

On Wed, Nov 13, 2024 at 11:42 AM Roman Tatarnikov <r.tatarnikov () intlos org>
wrote:




pk

Re: Implementing Decentralized RPKI with Blockchain Technology

Posted by Brandon Z. on Nov 13

Hi William,

Okay, this would lead to a permanent loss of resources, whereas
cryptocurrency does not have this issue.

the rules for NANOG and I presume it's against the rules for MANRS as
well.

Noticed that; sorry for posting twice as well.

Best,
*Brandon Z.*
HUIZE LTD
www.huize.asia <https://huize.asia/>| www.ixp.su | Twitter

This e-mail and any attachments or any reproduction of this e-mail in
whatever manner are confidential...




pk

Re: Implementing Decentralized RPKI with Blockchain Technology

Posted by Jason R. Rokeach via NANOG on Nov 13

For what it's worth, this is quite implementation specific and leaves a lot of room for intentional and appropriate
design decisions. Custom smart contract (think "decentralized program") code could be used to enable the functionality
desired for an RIR, without other functionality.
Let's extrapolate: An RIR could use smart contracts with immutable code to allow an entity to register a specific block
and retain certain...




pk

Re: Implementing Decentralized RPKI with Blockchain Technology

Posted by Tom Beecher on Nov 13

Incorrect.

If the RIR revokes the resource certificate used to sign the ROA, the ROA
is also then revoked. Validator software will then remove the VRPs that had
been created from that previously valid ROA. If there are no other VRPs
that cover the BGP message parameters, the validator will return NOTFOUND.

If the RIR refused to publish or deleted the ROA, validators will
eventually delete them, which also removes the VRP previously created. If...




pk

Re: Implementing Decentralized RPKI with Blockchain Technology

Posted by William Herrin on Nov 13

Not really. If it's technically feasible to override or roll back
transactions, you've violated one of the central tenets of block
chain. You can design a system that allows transactions to be rolled
back or changed by a central authority but the result would not be a
block chain and would not have the desired characteristic of
resistance against government compulsion.

Regards,
Bill Herrin




pk

Re: Implementing Decentralized RPKI with Blockchain Technology

Posted by Jason R. Rokeach via NANOG on Nov 13

transactions, you've violated one of the central tenets of block
chain.

To be clear, I did not state such. Ownership can be transferred by smart contract. This does not violate a core tenet
of blockchains and is a key feature of almost all blockchains which still exhibit signs of life.




pk

Re: Implementing Decentralized RPKI with Blockchain Technology

Posted by William Herrin on Nov 13

If the RIR can institute a revocation via smart contract, for any
reason, then you haven't achieved any resilience against government
compulsion applied to the RIR, which was Brandon's reason for
considering blockchain in the first place.

Regards,
Bill Herrin




pk

Re: Implementing Decentralized RPKI with Blockchain Technology

Posted by Matt Corallo on Nov 13

Thanks for raising this topic. In all the rush to deploy RPKI I fear these issues are not talked
about enough.

A variant of this could make some sense, the issue is that it doesn't do you a whole lot of good to
have a local RPKI anchor that you and your local community look to if the global internet community
isn't looking at it - sure, your IPs are routable to a few of your friends, but they can't reach
Google...oops....




pk

Re: Implementing Decentralized RPKI with Blockchain Technology

Posted by Seth David Schoen on Nov 13

Matt Corallo writes:

There are some tools out there either directly using or inspired by
Certificate Transparency that facilitate transparency logging of other
kinds of events. It might be interesting to put RPKI events into one
of those.

The big difference between blockchains and systems like CT is that the
latter do have single points of failure (an operator can shut down the
log completely, or break it in other ways), or at least relatively...




pk

Re: Implementing Decentralized RPKI with Blockchain Technology

Posted by David Conrad via NANOG on Nov 14

Tom,

Something I’ve been curious about for some time: since deployment of RPKI is (mostly) hosted by the RIRs and
ultimately, the RIRs control the validation chain, what would happen if the RIR creates (or, if you prefer, is directed
by court order to create) INVALIDs?

Regards,
-drc




pk

Flipkart Big Savings Days: Morphy Richards, Agaro से माइक्रोवेव और ओवन पर अद्वितीय डील का लाभ उठाएं

Flipkart के बिग बचत डेज़ Morphy Richards, Agaro के टॉप-रेटेड माइक्रोवेव और ओवन पर अविश्वसनीय बचत लाते हैं. किचन की विभिन्न आवश्यकताओं को पूरा करने वाले विश्वसनीय, हाई-परफॉरमेंस वाले मॉडलों पर भारी छूट का आनंद लें.




pk

Hopkins Finishes 8th In Stage Two

Kaden Hopkins and his Vendee U cycling teammates continued competing in the 73rd Tour Cycliste International de la Guadeloupe Stage two was a 151.5km Road Race. Hopkins finished eighth in a mass group sprint with a time of 3:33:26, which was 44 seconds off the Stage Winner Quentin Bezza who clocked 3:32:42. Hopkins is in 3rd […]




pk

Hopkins Finishes 52nd In Stage 3 Of Tour

Bermuda’s Kaden Hopkins and his Vendée U teammates faced another grueling day during Stage 3 of the 73rd Tour Cycliste International de la Guadeloupe. The 151.5-kilometer road race proved challenging, with Hopkins finishing in 52nd place with a time of 3 hours, 42 minutes, and 25 seconds. As the race progresses, Hopkins currently holds the […]




pk

Kaden Hopkins Wins Stage 3 In Guadeloupe

Bermuda cyclist Kaden Hopkins produced a superb display to win the third stage of the Tour of Guadeloupe yesterday [August 26], defeating over 100 cyclists to claim the victory. Hopkins, competing for French team Vendee U, clinched a sprint-finish victory in the 162-kilometre stage from Baie-Mahault to Pointe-a-Pitre, winning a photo finish from Jeunesse Cycliste des Abymes […]




pk

Hopkins Finishes 6th In Guadeloupe Stage 4

A day after his stage three victory, Bermudian cyclist Kaden Hopkins continued his strong performance in the 73rd Tour Cycliste International de la Guadeloupe, finishing sixth in stage four. The Anse-Bertrand to Belle-Eau route covered a challenging 145.5 kilometers. Hopkins, riding for Vendée U, crossed the finish line in 3:27:04, just 19 seconds behind stage […]




pk

Hopkins Finishes 49th In Guadeloupe Stage 5

Kaden Hopkins and his Vendee U cycling teammates were back in action competing in stage five of the 73rd Tour Cycliste International de la Guadeloupe in France. Hopkins finished the 158.9km road race in 49th place, clocking a time of 3 hours 43 minutes, and 23 seconds. Related Stories Cyclists Head To Guyana For Championships […]




pk

Hopkins Finishes 26th In Guadeloupe Stage 6

Kaden Hopkins and his Vendee U cycling teammates were back in action competing in stage six of the 73rd Tour Cycliste International de la Guadeloupe, the Morne-à-l’Eau›Le Gosier 146.1km road race. Hopkins finished 26th clocking a time of 4:05:16, he was 19 seconds behind the stage winner Thomas Bonnett. Hopkins moved up ten places from […]




pk

Hopkins Finishes 4th In Guadeloupe Stage 7

Kaden Hopkins and his Vendee U Cycling teammates were back in action competing in Stage Seven of the 73rd Tour Cycliste International de la Guadeloupe, the Morne-à-l’Eau›Petit-Canal 159.9km road race. Hopkins was in a 135 kilometer breakaway with eight other riders from Columbia, Spain, France, Dominican Republic, Belgium and Canada. Hopkins finished 4th, clocking the […]




pk

Hopkins Finishes 31st In Guadeloupe Stage 8

Bermudian cyclist Kaden Hopkins and his Vendee U teammates faced a challenging Stage 8 in the 73rd Tour Cycliste International de la Guadeloupe, navigating the grueling 153.6km road race from Pointe-à-Pitre to Baie-Mahault. The route featured over 2600 meters of climbing, testing the riders’ endurance. Hopkins crossed the finish line in 31st place with a […]




pk

Kaden Hopkins Wins Guadeloupe Stage 9

Bermudian cyclist Kaden Hopkins delivered a thrilling finish to the 73rd Tour Cycliste International de la Guadeloupe, winning the final stage in a blistering sprint finish. With 95 riders remaining in contention, the 153.6-kilometer route between Pointe-à-Pitre and Baie-Mahault culminated in a dramatic dash for the line. Hopkins, representing Vendée U, powered ahead to cross […]




pk

Kaden Hopkins Gears Up For Cycling Worlds

[Written by Stephen Wright] Kaden Hopkins is set to make his elite debut at the UCI World Cycling Championships in Zurich, Switzerland, marking a significant milestone in his career. The 24-year-old, who previously raced in the under-23 category, will compete in the elite men’s time-trial on Sunday [September 22] and the road race the following […]




pk

Kaden Hopkins Prepares For Elite Road Race

Bermuda cyclist Kaden Hopkins is set for one of the toughest races of his career when he competes in the elite men’s road race at the UCI World Cycling Championships in Zurich, Switzerland, on Sunday [September 29]. Hopkins, who previously raced in the under-23 category, earned his place in the road race thanks to his […]




pk

Napkins and geometry boxes distributed to sanitary workers




pk

My Pumpkins ...

It's Autumn, that time of year when the leaves are falling, the air is brisk, and porches all over America are decorated with pumpkins. My porch was like that. I had seven wonderful pumpkins of various sizes, lining the side of the stairs. The key word here is "had".
When I stepped out yesterday morning to get the paper, I was met by a very sad site indeed. All but one of my pumpkins had been butchered. Bits and pieces of their orange flesh lay strewn all over the place. It was a total "what the fuck" moment.
I stood there, trying to take it all in, when suddenly I became aware of what had happened and who the culprits were. Sitting there, over by the bushes, were four of the little bastards, still stuffing themselves on pumpkin guts and seeds. Fucking squirrels were at the bottom of this mess. After a year of the little tree rats eating my tomatoes, garden bulbs and other various parts of my yard, I was through!
I reached down, grabbed a rock from the side of the porch, and took aim on one of the little shit weeds... hee hee.
The upside is that I do have one small pumpkin left. The downside is that now, I have to go out and replace the others before our Halloween party this weekend. As though I didn't have enough to do. By the way, does anyone have a good recipe for squirrel appetizers? ...





pk

June 9 2009 Radio Station History Australia: 2PK "The Voice of the Golden West"

Parkes Broadcasting Co. Pty. Ltd. is the licensee of 2PK, which came on the air on October 5th 1937...




pk

APKF Product Key Finder for MAC 1.1.4

APKF Product Key Finder is Adobe CS3, CS4, CS5 and CS6 Key Finder for MAC. The software automatically searches your computer for the product keys and serial numbers that your software programs store in the registry or in the cache. APKF allows finding and recovering license keys for Adobe Acrobat, Adobe Dreamweaver, Adobe InDesign, Adobe Illustrator, Adobe Photoshop, Adobe Flash, Adobe Fireworks and more. With Adobe Product Key Finder you simply diagnose your system for all installed Adobe products and make a backup, print it or save to the file or database. This may save you a lot of money. APKF Adobe Product Key Finder is a free to try software. You can free download and try it for an evaluation period.




pk

APKF Product Key Finder 2.7

APKF Product Key Finder is product key recovery software for installed Adobe products. The software automatically searches your computer for the product keys and serial numbers that your software programs store in the registry or in the cache. APKF allows finding and recovering license keys for Adobe Acrobat, Adobe Dreamweaver, Adobe InDesign, Adobe Illustrator, Adobe Photoshop, Adobe Flash, Adobe Fireworks and more. With Adobe Product Key Finder you simply diagnose your system for all installed Adobe products and make a backup, print it or save to the file or database. This may save you a lot of money. APKF Adobe Product Key Finder is a free to try software. You can free download and try it for an evaluation period. You can backup recovered product keys and save as Tab Delimited Txt File (.txt), CSV Comma Delimited (.csv), Excel Workbook (.xls), Access Database (.mdb), Web Page (.html), SQLLite Database or XML Data (.xml) file, print key list or copy all to clipboard.




pk

PKF Product Key Finder 1.4.0

PKF Product Key Finder is Windows application designed for recovering and finding product keys to over +9000 software programs: Windows 10, Windows 8, Windows 7, Microsoft Office, Adobe CS6, CS5, CS4, CS3, Acronis, Electronic Arts games, WinZip, Nero and more. In order to install or reinstall Microsoft Windows, Office, Adobe products, or other commercial software, you must have access to a product key (CD Key) for that product. With this software you will be able to find and recover a lost or forgotten product keys, save and keep an up-to-date backup of all your software license keys in a central location.You can save product keys as Tab Delimited Txt File (.txt), Excel Workbook (.xls), CSV Comma Delimited (.csv), Access Database (.mdb), Web Page (.html) or XML Data (.xml) file, SQLLite3 Database, Print or Copy to Clipboard.




pk

Autumn Pumpkin Oatmeal Recipe

Adding pumpkin is a delicious, healthy way of adding vitamins, minerals and antioxidants to oatmeal.




pk

Highly Nutritious Pumpkin Seeds

Roasting pumpkin seeds for their high nutritional value. These small seeds pack a lot of minerals and nutrients in such a small and tiny package.




pk

Yayoi Kusama's yellow pumpkin sculpture is back on Naoshima Island, Japan

Japanese artist Yayoi Kusama's famous yellow pumpkin sculpture was reinstalled on October 4th on Naoshima island after it was swept into the sea and badly damaged during a typhoon last summer.





pk

Slipknot - We Are Not Your Kind

Slipknot




pk

Slipknot Announce 2025 Shows

First set of European 2025 shows announced by the Iowan legends.




pk

Kenya: Steeplechase World Record Holder Chepkoech Reminisces On Decade Track Career

[Capital FM] Nairobi -- Ten years into her track career, Women's 3000m Steeplechase World Record Holder Beatrice Chepkoech looks back at what has been a golden chance well utilized by the once little girl, who used to run to and fro school across the large tea plantations deep in the heart of Kericho County.




pk

Kenya: Chepkirui Outsprints Obiri to Win New York Marathon in Kenya Podium Sweep

[Capital FM] Nairobi -- Kenya's Sheila Chepkirui held off a stiff challenge from fellow countrywoman, Hellen Obiri, to win the New York Marathon on Sunday -- her first-ever World Marathon Majors triumph.




pk

Zweedse streamingmarkt groeit met 600.000 abonnementen in Q3 door opkomst reclame-opties

De Zweedse streamingmarkt ondergaat een opleving na een periode van tragere groei, met 600.000 nieuwe streamingabonnementen in het derde kwartaal vergeleken met dezelfde periode in 2023. De belangrijkste reden is de opkomst van meer betaalbare, advertentie-ondersteunde abonnementsopties. Dit meldt...




pk

GPO signs on to using PKI

One of the issues regarding information on the web is ensuring authenticity, especially in regards to government information. The GPO recently announced they will be soon begin using public-key infrastructure and digital signatures to ensure authenticity of documents released online....




pk

Recommended Reading from Fr. Tom Hopko

Many listeners have asked about Fr. Tom's favorite books. In today's episode he identifies them and tells us why. The list includes: The Sayings of the Desert Fathers The Arena - Bishop Ignatius Brianchaninov The Art of Prayer - St. Theophan the Recluse St. Silouan the Athonite We Shall See Him As He Is - Elder Sophrony His Life is Mine - Archimandrite Sophrony Christ, Our Way and Our Life - Archimandrite Zachariah The Hidden Man of the Heart Remember Thy First Love - Archimandrite Zachariah The Complete Fenelon Atheist Delusions - David Bentley Hart The Abolition of Man - CS Lewis




pk

Fr. Thomas Hopko - Sandy Hook and Our Response

After listening to an AFR Commentary by Fr. Lawrence Farley and a sermon by Fr. Andrew Damick, Fr. Thomas offers some additional and personal thoughts on the shootings at Sandy Hook Elementary School in Newtown, CT. We also encourage you to listen to the comments by Fr. Tom Soroka.




pk

The Frostis on the Pumpkin

Has the latest news about the election, international struggles and the economy got you down? Well, take heart and fear not -- for the frost, my friends, is on the pumpkin!




pk

Kids, Pigs, a Side of Hopko, and Demonic Christians

Jesus cast the demons into the swine. What did that sound like? Fr Joseph, with help from the children of St Joseph Church, and a potent dish of Hopko, explains.




pk

Remembering Fr. Thomas Hopko

Recorded on March 17, Fr. John remembers Fr. Thomas Hopko who reposed on March 18, 2015. May his memory be eternal. These links were referenced: Fr. John's reflection soon after Fr. Tom's repose Fr. Tom's lecture on Understanding the Cross Funeral homily by Fr. John Behr




pk

The Ninth Hour: Remembering Fr. Thomas Hopko

Fr. John shares some reflections on the death of Protopresbyter Thomas Hopko.




pk

Reflections on the Cross; Fr. Thomas Hopko

Fr. John Parker speaks about the life of Fr. Thomas Hopko, this being the liturgical anniversary of his repose, and his reflections on the Cross. Listen to Fr. Tom's reflections here: *Part 1*Part 2*Part 3*Part 4