Shekhar – Medium

Shekhar

An open letter to Tech CEOs mandating 14 hour workdays

Knowledge work is mostly deep work. Deep work requires one to ideate, iterate, focus, and establish/follow best practices. Your best…

Aug 10, 2024

An open letter to Tech CEOs mandating 14 hour workdays

Aug 10, 2024

Everything About Authentication

ARGON2, Oblivious Transfer + Password Authenticated Key Exchange Private Set Intersection , TOTP, OIDC/OAuth and Passkey/Passwordless Auth.

Apr 25, 2024

Everything About Authentication

Apr 25, 2024

Asymmetric and Post Quantum Cryptography In Depth

We had already looked at RSA back in this article for Diffie Helman Key Echange in TLS. Let us understand other modern approaches in this…

Apr 12, 2024

Asymmetric and Post Quantum Cryptography In Depth

Apr 12, 2024

Symmetric Cryptography in Depth

Eventually in TLS, the actual process of sending and receiving of data is using Symmetric Encryption. Let us take a look at ChaCha20 and…

Apr 7, 2024

Symmetric Cryptography in Depth

Apr 7, 2024

Polyglot mechanisms for High Network IO Performance

Classic Socket IO, AsyncIO, Non Blocking IO, Reactor, Multi-Reactor, GoRoutines and Virtual Threads

Mar 6, 2024

Polyglot mechanisms for High Network IO Performance

Mar 6, 2024

LLMs : From Zero to Hero.These articles are all you need — Vector Search — Part 4

Semantic/Vector search differs from Keyword/Similarity search in that Similarity search is like looking for a specific book in a library…

Mar 4, 2024

LLMs : From Zero to Hero.These articles are all you need — Vector Search — Part 4

Mar 4, 2024

Similarity Search: A Crash Course

Search/Information Retrieval as explained in RAG eventually ends up being the lynchpin of the entire RAG pipeline. But what is search?

Mar 4, 2024

Similarity Search: A Crash Course

Mar 4, 2024

LLMs : From Zero to Hero.These articles are all you need — Miscellaneous — Part 5

RAG traid, RLHF,DPO, Chunking Best Practices, Advanced Retrieval, Needle in a Haystack, Prompt Tuning and KV Caching

Feb 18, 2024

LLMs : From Zero to Hero.These articles are all you need — Miscellaneous — Part 5

Feb 18, 2024

The OpenAI fiasco: The Real Questions To Ask

Some food for thought. I believe these are the actual questions we should be asking.

Nov 20, 2023

The OpenAI fiasco: The Real Questions To Ask

Nov 20, 2023

Published in
AWS in Plain English

How AWS S3 Requests Are Authenticated: HMAC-SHA256

HMAC-SHA256. Sounds like gobbledygook. What is it really?

Sep 10, 2023

How AWS S3 Requests Are Authenticated: HMAC-SHA256

Sep 10, 2023

Shekhar

Shekhar

Team Incubator, Pragmatic Data Scientist, Software Architect , Amateur Product Manager, Geek, Hacker, Father, Hardware Tinkerer

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