About OTC CatchUp
OTC CatchUps are weekly informal sessions involving project showcases and technical discussions. They are held every Saturday from 10:30 PM IST. Join in!. For all summaries, please visit catchup.ourtech.community/summary. |
OTC CatchUp #119
Date: 18-02-2023
Duration: 3 hrs 30 mins
Topics Discussed
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Saifuddin Saifee asked how Ambient Mode in YouTube works on the backend.
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Most of us presumed that the feature would be handled on the fly, on the client side — by picking up a few primary colors from the video.
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However, Ramyak Mehra suggested that colors are pre-processed alongside other metadata when a video is being uploaded and that data is supplied to the client while streaming.
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We held the second edition of OTC Talks session with Omkar Khair giving a talk on 'Internals of an Email Relay'.
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Find the talk abstract and other relevant links — OTC Talks #2
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The talk covered interesting ideas about an e-mail relay, e-mail metadata, SPF, DKIM, a Zero Ops approach and the total cost of building an e-mail relay.
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Omkar also demonstrated the application Dopemin - Firewall for your Email — that he along with 8 users (friends and family) have been using seamlessly for the past three years.
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The project was implemented using AWS Lambda, Amazon SES, Amazon SNS, Cloud Functions for Firebase, Cloud Firestore and Authentication from Firebase, and the interface was built using Vue.js.
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We discussed interesting problems around it like how scaling such applications is not a problem due to generous limits offered by services like AWS, but the abuse of such applications becomes a problem.
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Relevant links
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Harsh Kapadia asked whether it was more common to have a single keypair for signing and encryption or do people usually have different keypairs for both functions.
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Anil explained why using the keys is based on need and context.
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Concepts that were mentioned while explaining:
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PGP (Pretty Good Privacy) is the scheme of encryption, signing and other functions.
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OpenPGP is a standard that softwares implementing PGP can follow to meet safe and standard practices.
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GPG/GnuPG (GNU [GNU’s Not Unix] Privacy Guard) is a tool that implements PGP using the OpenPGP standard and enables encrypting and signing e-mails, files, etc.
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Rishit Dagli shared cs144.github.io and 2022-cs244.github.io.
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Anil Harwani shared a blog about Avoiding the standard library
libc
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Darshit Suratwala talked about his work at Sacle3 on products such as Autopilot (a Blockchain node monitoring solution).
Attendees
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Abhishek Vallecha
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Anil Gohan
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Jia Harisinghani
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Pranit Patil
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Raghav Rathi
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Ronak Dhingra
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Sahil Daryani
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Yuxuan Huang
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atmaj koppikar
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jaden furtado
Meet Screenshot
For all summaries, please visit catchup.ourtech.community/summary. |
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