Cryptography Basics

Hosted by New York Amateur Computer Club

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Presented by Brendan Kidwell, NYACC Board Member

What does it really mean when we say data is encrypted? What does cryptography have to do with proving the identity of someone or something? What does the padlock icon in your browser's location bar mean? Do you know what it can and CAN'T tell you about a site?

In order to truly own your computer and your personal data on the Internet, you need to understand how they work. This presentation will introduce some of the fundamental concepts and functions in modern cryptography and explain how they are applied to real world problems, so that you can be a more confident user.

At least half an hour before the meeting, please email David Metzger ( ) and Brendan Kidwell ( ) to request joining the NYACC meeting. One of them will send you instructions to join our Zoom meeting from desktop computer, laptop, mobile device, or from a phone call. PLEASE REMEMBER TO MUTE YOUR MICROPHONE WHEN YOU ARE NOT SPEAKING.

Don't forget we also have a new BBS and chat room you can use to connect with NYACC members any time, outside of our meetings:

Contact Brendan Kidwell ( ) if you have any trouble using the BBS or chat room.


The New York Amateur Computer Club was established in March 1975 with the mission to further education in diverse areas of personal computing. The presentations at monthly meetings cover various platform computing systems and range from in-depth technical subjects to general overviews with broad appeal.

General meetings are always held on the second Thursday of each month and start promptly at 7 PM with announcements followed by a period of Questions and Answers called Random Access in which members and visitors are encouraged to ask technical questions or ask for advice on purchasing or using software, hardware, and related issues. There is a short break before the main presentation to enable attendees to meet and greet each other and to buttonhole people to get more detailed answers to specific questions.

The general meetings are open without charge to the public. Please consider becoming a member for $20 per year or renewing your membership, to help cover our operating costs. See instructions at .

Nov. 11, 2021, 7 p.m. - Nov. 11, 2021, 9 p.m.


Attendees (1)

Brendan Kidwell Yes