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Cryptography

Meet other local people interested in Cryptography: share experiences, inspire and encourage each other! Join a Cryptography group.
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Frequently Asked Questions

Yes! Check out cryptography events happening today here. These are in-person gatherings where you can meet fellow enthusiasts and participate in activities right now.

Discover all the cryptography events taking place this week here. Plan ahead and join exciting meetups throughout the week.

Absolutely! Find cryptography events near your location here. Connect with your local community and discover events within your area.

Cryptography Events Today

Join in-person Cryptography events happening right now

Grange Insurance Audubon Center
Grange Insurance Audubon Center
Quarterly Community Gathering
Quarterly Community Gathering
Join the Columbus AI community for our quarterly gathering — a casual, community-focused evening where everyone has a chance to share, learn, and connect. These open mic–style events give anyone in the community up to **5 minutes** to present a project, share a tool, pose a question, or offer a perspective on the evolving AI space. No slides required — just a welcoming space to exchange ideas and keep the local AI conversation moving. If you’d like to take the stage, message **Chris (the organizer)** with a **title and short description** of what you’d like to share. Whether you’re deep in the field or just getting curious, come connect with others building and exploring AI in Columbus. Sponsored by [Transform Labs](https://www.transformlabs.com/services)
Columbus Arduino Raspberry Pi Enthusiasts (CARPE) (Check Location)
Columbus Arduino Raspberry Pi Enthusiasts (CARPE) (Check Location)
Bring your Raspberry Pi, Arduino, microcontroller, or any other electronic project and join fellow electronics makers for a night of creativity and collaboration! This session is open forum to share your current projects—whether complete or in progress, it’s all interesting! Whether you’re deep into embedded systems, exploring new ideas, or just getting started, you’ll find a welcoming space to collaborate, share, and get inspired. (NOTICE - Location change!) This session will be at the Karl Road Branch of the Columbus Library in the Conference Room 2.
Euchre Night @ TownHall Short North!
Euchre Night @ TownHall Short North!
A very Midwest way to spend the night. Euchre Night at TownHall Short North brings cards, cocktails, and community together for an easygoing evening of friendly competition. All skill levels welcome—confidence encouraged.
Free In-Person Meeting: Healing from Trauma and Past Betrayals
Free In-Person Meeting: Healing from Trauma and Past Betrayals
This is a free, in person meeting. Burdened by a stressful relationship? Unhealthy relationships can trigger feelings of anger, despair or self-doubt. They can create dwindling spirals of fights and seeking to make-up, or trying to “pin the blame” on someone or something. If you don’t find the RIGHT reasons, or select the correct sources of the problem, the problem can just get worse and worse. Whether in love or personal ties, with friends or at work, our life really IS affected by the quality of our relationships. Good ones can promote pleasure and survival while less optimum ones can lead to annoyance, anger, self-doubt, stress, or even affect our health and ability to survive well. Whether you are suffering from a divorce, or a painful break-up, don’t know who to trust (or who to CHOOSE) as a partner, friend, boss or employee - the anxiety of relationship troubles can really make a mess of things. Maybe you’ve suffered a betrayal, or are dealing with hostility or criticalness or invalidation. Dwindling relationships can involve destructive behavior, where we hurt those we love, or start succumbing to self-destructive thoughts, attitudes or behaviors that spiral out of control and affect much more than our immediate relationship. Past losses in love or life can affect how we act or react to new people and situations and hold us back from even starting to create new, possibly great relationships! How can one get back onto a saner course of action? Come to our Meetup, where we can introduce you to some of the knowledge, tools and techniques of the breakthroughs in the field of the mind that we can apply to this ever important area of life: human relationships! Break free from self imposed limitations Here we will discuss: • How to “erase” the trauma of past hurts and betrayals so that one isn’t always repeating past mistakes. • Why and how do the negative emotions of others affect you? • Why is my partner withdrawing and what can I do about it? • Why do we sometimes feel compelled to hurt the ones we love? • Fights & arguments - what's really behind them? • What underlies “corrosive criticism” or the need to invalidate self or others? • How one can stably change one’s outlook on life so they can affect positive change? • Where do compulsive destructive behaviors come from and what can be done about them? • How to form closer bonds & keep growing the relationships with the people you care about? • How to enhance one’s own ability to survive and create positive healthy relationships whether in love, family & friendships or in work, business or one’s career? Relationships can be hard and life itself IS challenging. Why not arm yourself with the knowledge and breakthroughs that have been made about the mind, mental reactions & interpersonal relationships, so that one has better awareness and control over themselves and life in general. Learn where painful experiences are “stored” and how they can unknowingly affect us. You will also find out how one can “erase” those past painful experiences so that one is free to move forward without being tripped up by the past. Learn too, about what can lead some people to become “toxic” personalities and how to identify those traits in others so you won’t be tripped up trusting the wrong person. Our free Meet-ups occur in a safe environment where one can learn, without fear of judgment or criticism, and without the recommendation of harmful mental techniques or therapies, just how YOU can get yourself onto a happier & more successful path: in love & in life. We look forward to having you join us! This class is sponsored by the Dianetics & Scientology Life Improvement Center of Central Ohio.
Ultimate Frisbee at Lincoln Tower Park
Ultimate Frisbee at Lincoln Tower Park
The Fisherman by John Langan
The Fisherman by John Langan
Join us for The Fisherman by John Langan. In upstate New York, in the woods around Woodstock, Dutchman's Creek flows out of the Ashokan Reservoir. Steep-banked, fast-moving, it offers the promise of fine fishing, and of something more, a possibility too fantastic to be true. When Abe and Dan, two widowers who have found solace in each other's company and a shared passion for fishing, hear rumors of the Creek, and what might be found there, the remedy to both their losses, they dismiss it as just another fish story. Soon, though, the men find themselves drawn into a tale as deep and old as the Reservoir. It's a tale of dark pacts, of long-buried secrets, and of a mysterious figure known as Der Fisher: the Fisherman. It will bring Abe and Dan face to face with all that they have lost, and with the price they must pay to regain it.

Cryptography Events This Week

Discover what is happening in the next few days

NSCoder Night
NSCoder Night
Bring your work or your hobby, hang out, and code with us. Follow @buckeyecocoa for more information.
Columbus HUG February
Columbus HUG February
Want to be a speaker? submit your talk to our Call for Presenters!!! https://sessionize.com/cbus-hug-2026/
Psychic Development Series  II - Pueo Group
Psychic Development Series II - Pueo Group
Private Group. Closed to the Public Knowing ourselves and understanding our abilities is the first step toward wielding our gifts with control and accuracy. In subsequent classes we will verify and hone our talents with activities and discussion. These are hands-on workshops and participation is expected. The goal of our series will be to develop expertise in areas of particular interest such as mediumship, channeling, divination, healing and, etc.. Our ultimate directions will be determined by class members as we evolve. I look forward to sharing and discovering with you. - Cynthia
Sunday Board Games at Land-Grant Brewing
Sunday Board Games at Land-Grant Brewing
We'll play board games at the [Land-Grant Brewing Company](https://landgrantbrewing.com/). The brewery has multiple [food trucks](https://landgrantbrewing.com/food/) on Sundays, including [Ray Ray's Hog Pit](https://rayrayshogpit.com/franklinton), [Buck City Sammies](https://www.buckcitysammies.com/menu), and [Hai Poké](https://www.haipokefoodtruck.com/). The brewery also has (passable) drip coffee, free water, and Jeni's ice cream. You can also walk over to the [Land Grant Extension](https://callinyourbluffcoffee.com/) for "real" coffee. (You may have to stand in line, though. The Extension is popular.) You can come late or leave early. Please just sign up so I know to expect you. **Notes on Parking** * You'll (probably) have to park on the street, but street parking is free on Sundays. * There are [parking garages](https://landgrantbrewing.com/parking/) a little farther away if you want. These are obviously not free, though. * There is a [lot next door](https://www.google.com/maps/place/39%C2%B057'26.0%22N+83%C2%B000'40.9%22W/@39.957211,-83.0119921,19z/data=!3m1!4b1!4m12!1m7!3m6!1s0x88388f3efd89238b:0xc139207386232411!2sLand-Grant+Brewing+Company!8m2!3d39.9577613!4d-83.011426!16s%2Fg%2F1pzt7t9df!3m3!8m2!3d39.957211!4d-83.011347?entry=ttu&g_ep=EgoyMDI2MDEyMS4wIKXMDSoKLDEwMDc5MjA3MUgBUAM%3D) to the brewery that you're allowed to park in, but it is not free. I've never parked there, so I don't know anything about rates. (I'm told though that if you eat at Milo's Deli next door to this lot that Milo's will stamp your parking so it's free.) * You're going to see odd signs on [Lucas St](https://www.google.com/maps/place/39%C2%B057'26.1%22N+83%C2%B000'40.3%22W/@39.957256,-83.0124134,19z/data=!3m1!4b1!4m10!1m5!3m4!2zMznCsDU3JzI4LjgiTiA4M8KwMDAnNDEuNSJX!8m2!3d39.957993!4d-83.011536!3m3!8m2!3d39.957256!4d-83.011197?entry=ttu&g_ep=EgoyMDI2MDEyMS4wIKXMDSoKLDEwMDc5MjA3MUgBUAM%3D) (saying it's a "private street") that will lead you to believe you're not allowed to park there, but you actually are. * Columbus parking cops literally do not work on Sundays. This means that, even if you're driving a non-EV, you can park in the EV spots near the brewery. **Games** I do bring many games, but please bring some of your own as well.
Spec-Driven Development with GitHub Spec-Kit - Barret Blake
Spec-Driven Development with GitHub Spec-Kit - Barret Blake
**Important time note:** Please plan on arriving between 5:30 and 6:00 as the elevators lock after 6 and you'll need to message us and we'll need to come get you. The building address is 4450 Bridge Park The entrance is 6620 Mooney St, Suite 400 You will need to scan your ID at the door to get a visitor badge. **Abstract** *Spec-Driven Development with GitHub Spec-Kit: From Intent to Implementation* Spec-driven development flips the traditional workflow on its head: instead of code being the source of truth, the specification becomes the backbone of design, collaboration, and delivery. In this session, we’ll explore how GitHub Spec-Kit enables teams to treat specifications as first-class artifacts—living documents that drive architecture, implementation, and verification. You’ll learn how Spec-Kit helps teams clearly express intent using structured, version-controlled specs that live alongside code. We’ll walk through a practical workflow that starts with defining system behavior and constraints, then progressively refines those specs into testable, automatable outcomes. Along the way, we’ll show how specs can reduce ambiguity, improve cross-functional collaboration, and make design decisions explicit before a single line of production code is written. This talk will cover: --What spec-driven development is (and what it isn’t) --How GitHub Spec-Kit fits into modern developer workflows --Using specs to align product, engineering, and AI-assisted development --Real-world examples of turning specs into implementations with confidence Whether you’re building greenfield systems, integrating AI into your stack, or trying to reduce costly rework, spec-driven development offers a scalable way to move faster without sacrificing clarity. Attendees will leave with concrete patterns and a clear mental model for adopting GitHub Spec-Kit in their own projects. **YouTube Link** TBA
Industry Tech Talk + Q&A
Industry Tech Talk + Q&A
Excited to share that AWS Cloud Club's first meeting will take place on Thursday, February 26th at 5pm - 6pm! We’re collaborating with [Big Data & Analytics Association](https://www.linkedin.com/company/big-data-analytics-association/) to host [Alok Jha](https://www.linkedin.com/in/alok-jha-42abb928/), Head of Product Management for AWS Intelligent Application Protection at Amazon Web Services, for a tech talk + Q&A on his journey in leading cutting-edge innovation in industry. If you’re interested in cloud, cybersecurity, AI, or product management, this is a session you won’t want to miss. Make sure to join our Meetup and GroupMe to stay up to date for future events and collabs!
Open Meeting
Open Meeting

Cryptography Events Near You

Connect with your local Cryptography community

Cocoaheads
Cocoaheads
Come out to Improving for our monthly iOS and Mac meetings. This Month's Presentation: Nothing yet. (You should volunteer). What is Cocoaheads (http://cocoaheads.org/)? CocoaHeads is a group devoted to discussion of Apple Computer's Cocoa Framework for programming on MacOS X and iOS (including the iPhone, iPad and Apple Watch). During monthly meetings, members present on their projects and offer tutorials on various programming topics. What is BuckeyeCocoa (http://buckeyecocoa.org/)? BuckeyeCocoa is a group of Objective-C/Swift developers/enthusiasts. We host monthly Cocoaheads and near-weekly NSCoder meetings in Columbus, Ohio. The meetings are free to attend. Presentations! Presenters welcome! We are always in need of people willing to present material. Any Swift and/or Objective-C related topic is welcome. Times can be 5 minutes (i.e. lightning talks) to a maximum of 2 hours. Interested? Contact info is on the BuckeyeCocoa website. To volunteer for a presentation contact us at @BuckeyeCocoa on Twitter. Follow us on Twitter! @BuckeyeCocoa (https://twitter.com/#!/Buckeyecocoa/) For more information: http://buckeyecocoa.org/
BeComing Circle Initiates
BeComing Circle Initiates
http://photos2.meetupstatic.com/photos/event/2/a/9/6/600_348310902.jpeg Instructor - Crow, HPS Class fee is $30 at the door or approved exchange RSVP with Advance pay of $25 (discounted) by PayPal on the web or by contacting Enchanted Elements (614) 437-2642. Reservations made directly to Enchanted Elements will be added to the class list manually not online. Private Instruction ~ Closed to the Public ~ Initiated Members Only Please come prepared for ritual. Blessings ~ Crow
Monthly Meeting (Getting Ready for Spring Macro Photography)
Monthly Meeting (Getting Ready for Spring Macro Photography)
TOPIC (Getting Ready for Spring Macro Photography): Insects are hatching, and flowers are blooming soon. Join us for a presentation on Spring Macro photography and get primed for the photographic season ahead. Meeting Schedule: 1. 6:00 - Introduction, Meet New Members 2. 6:10 - Old Business 3. 6:20 - New Business 4. 6:30 - Pre-Shoot Briefing/Education 5. 7:15 - Break 6. 7:30 - Image Critique 7. 8:00 - Adjourn Pre-Shoot Brief/Education: NIK Collection 8 Image Critique: Previous Photoshoot Images (iPhone images and Christmas Cards). If anyone has images they would like critiqued, please provide them at the beginning of the meeting. Providing Images for Critique: For now, I will collect images at the beginning of the meeting on a USB memory stick. My computer has USB-C ports, so a USB-C memory stick or one with dual (USB-C / USB-A) ports will be needed. Images should follow these format rules: JPG - 80% quality or higher 132 dpi resolution 2048 pixels across the long edge Embedded colorspace - sRGB
Building Agents with Microsoft Foundry
Building Agents with Microsoft Foundry
We will show a variety of methods for building agents that run in Microsoft Foundry. This covers the different types of agents: Prompt, Multi, and Hosted, as well as the development lifecycle using evals and traces.
Columbus PHP: Monthly Meetup
Columbus PHP: Monthly Meetup
Our monthly PHP meetup. A virtual shindig courtesy of Zoom. Check back here for the details around 6:15 pm
Investing & Personal Finance Meeting
Investing & Personal Finance Meeting
If you are interested in selecting investment choices for your 401(k) or other workplace savings plan, minimizing your income tax liability, or identifying the most effective investments for your brokerage account, we are the group for you. We are a local chapter of Bogleheads**®**, whose investment strategy can be found here: https://www.bogleheads.org/wiki/Bogleheads%C2%AE_investment_philosophy Or you can peruse the Boglehead forum here: https://www.bogleheads.org/index.php I look forward to seeing you there. Mark Vonder Haar