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    • Favorite 29 August 2020
      bobjonkman favorited something by eloquence: Disturbing reports that Google Play is threatening to kick out Mastodon apps. See:https://mastodon.social/@Gargron/104763960269049818https://toot.fedilab.app/@fedilab/104765191594914330App stores have a track record of acting capriciously & are also easy targets for gov't censors (including Trump). This is why alternatives like @fdroidorg are so important for user freedom.If unfamiliar: F-Droid is a free & open […]
    • bobjonkman repeated a notice by eloquence 29 August 2020
      RT @eloquence Disturbing reports that Google Play is threatening to kick out Mastodon apps. See:https://mastodon.social/@Gargron/104763960269049818https://toot.fedilab.app/@fedilab/104765191594914330App stores have a track record of acting capriciously & are also easy targets for gov't censors (including Trump). This is why alternatives like @fdroidorg are so important for user freedom.If unfamiliar: F-Droid is a free & open source app you […]
    • New note by bobjonkman 25 August 2020
      I do like the taste of onion bagels. When the other bagels in the bag acquire an onion flavour it's a poor experience at best, almost certainly leading to the purchase of a *real* onion bagel. #AOBFS #AcquiredOnionBagelFlavourSyndrome
    • bobjonkman repeated a notice by lnxw48a1 25 August 2020
      RT @lnxw48a1 @bobjonkman @blacksam Would that still be true if you actually liked onion bagels? Asking because, although I don't eat bagels at all, it seems to me that you're probably unusually sensitive to the flavor of onion ... which would likely be the case if you disliked that flavor.
    • New note by bobjonkman 24 August 2020
      If there is one onion bagel in a bag of bagels, they're *all* onion bagels...
    • bobjonkman repeated a notice by blacksam 24 August 2020
      RT @blacksam How come no matter what flavor bagel you buy from the bakery, it's always, to some extent, an onion bagel? #bagels #onions #wtf
    • Favorite 24 August 2020
      bobjonkman favorited something by blacksam: How come no matter what flavor bagel you buy from the bakery, it's always, to some extent, an onion bagel? #bagels #onions #wtf
    • Favorite 24 August 2020
      bobjonkman favorited something by lnxw48a1: #TIL: Gravity keyhole https://en.wikipedia.org/wiki/Gravitational_keyhole and Roche limit https://en.wikipedia.org/wiki/Roche_limit
    • Favorite 31 May 2020
      bobjonkman favorited something by atarifrosch: @bobjonkman: Das habe ich heute bekommen, wiederum 2 Monate später …
    • bobjonkman repeated a notice by fsf 24 May 2020
      RT @fsf Remote education has provided an unfortunate opportunity for privacy-invading proprietary software to invade students' lives. Learn how many people are fighting back: https://u.fsf.org/32h

Cryptography and Security Events in Kitchener-Waterloo

Posted by Bob Jonkman on 9th October 2013

The months of October and November are shaping up to have some great lectures and presentations on cryptography, security and privacy.

Sheet of paper, strips of paper

Keysigning materials

Yesterday started off with an informal keysigning at the KWLUG meeting. The presentation was on the Scratch programming environment, nothing to do with GnuPG/PGP or cryptography. But a few of us exchanged little slips of paper with our key fingerprints, verified that the name with the fingerprint matched the person we knew, signed the keys, and so improved our standing in the Web of Trust. I hope that this becomes a regular part of all KWLUG meetings. The more people that participate, the more confident we can be about the validity of keys we may not have verified ourselves.

Today I attended the first UofW CSClub lecture on Security and Privacy by Sarah Harvey. If you’ve been following the news about the Snowden revelations you’ll know why security and privacy is important. The room was full of computer science, math and cryptography students, so the discussions were deep and technical.

Sarah Harvey shows a slide of Edward Snowden

Sarah Harvey shows a slide of Edward Snowden

There was a vacancy in the November KWLUG meeting so I asked Sarah if she would repeat her lecture. Let’s see what the KWLUG bosses have to say

There are more CSClub lectures scheduled, check the schedule on the CSClub site.


M-209 cipher machine

KWCrypto logo, the M-209 cipher machine

I’ve volunteered to do a presentation on Encrypting E-mail with GnuPG, Thunderbird and Enigmail, followed by a formal keysigning. I’m developing the presentation notes and keysigning procedure on the KWCrypto Interest Group Wiki that was set up after the Kwartzlab keysigning party last year. Please join me on the Wiki and the mailing list — I’d appreciate the help.

–Bob.

Keysigning Materials picture taken by Bob Jonkman and released under a CC BYCreative Commons — Attribution — CC BY license.

M-209 cipher machine by Greg Goebel used under CC BY-SACreative Commons – Attribution-ShareAlike 2.0 Generic – CC BY-SA 2.0

Picture of Sarah Harvey taken by Laurel L. Russwurm and used under a CC BYCreative Commons — Attribution — CC BY license.

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