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Ask HN: Why Is My Happiness Tied to My Productivity?

4 points by hnquestion12345 1h ago 4 comments

Snapchat open source cross-platform mobile framework. Looking for beta testers

10 points by FactoryReboot 5h ago 1 comments

Ask HN: Do you do anything with the "cool" languages that get posted here?

2 points by AstroJetson 3h ago 2 comments

We'll need a universal basic income (UBI) in an AI-driven world

11 points by mockingloris 6h ago 23 comments

GitHub Outage?

10 points by U1F984 4h ago 3 comments

Tell HN: Regulations.gov Comments API is shutting down on Friday

7 points by sadmiralakbar 5h ago 0 comments

Ask HN: How can ChatGPT serve 700M users when I can't run one GPT-4 locally?

538 points by superasn 3d ago 355 comments

Google's RCS disconnected in several countries

6 points by hocuspocus 6h ago 0 comments

Ask HN: What toolchains are people using for desktop app development in 2025?

100 points by lincoln20xx 2d ago 111 comments

Ask HN: With all the AI hype, how are software engineers feeling?

81 points by cpt100 19h ago 166 comments

Ask HN: What trick of the trade took you too long to learn?

381 points by unsupp0rted 7d ago 663 comments

Ask HN: What tech skill gave you the biggest boost in your career?

6 points by doppelgunner 10h ago 8 comments

Comparing 6M Feature Selection Methods on Credit Risk Data

2 points by Cermank 6h ago 3 comments

Ask HN: Has anyone built anything useful using AI?

4 points by bapak 18h ago 10 comments

Tell HN: Anthropic expires paid credits after a year

271 points by maytc 6d ago 136 comments

Vectorless: open-source PDF chatbot without RAG

4 points by richardmeng 19h ago 4 comments

Ask HN: Has any of the Pivotal Tracker replacement attempts succeeded?

47 points by admissionsguy 7d ago 34 comments

Ask HN: What are some comfy/stress-free jobs a SWE can do? (LCOL country)

7 points by ejlanor 22h ago 13 comments

What's your favorite CLI tool for integrating LLMs into your terminal workflow?

10 points by menisadi 1d ago 7 comments

Ask HN: Canadian founders, how do you build in SF?

8 points by changisaac 1d ago 2 comments

Ask HN: Advice for someone who wants to try AI-assisted coding?

8 points by inglor_cz 1d ago 18 comments

Does anyone know a detailed residential cost estimator

2 points by morpheos137 1d ago 0 comments

Ask HN: Why is Usenet not coming back?

13 points by Fabeltjeskrant 1d ago 14 comments

Ask HN: Best way to get a land line for my kids?

5 points by xrd 1d ago 24 comments

Ask HN: What do you dislike about ChatGPT and what needs improving?

33 points by zyruh 5d ago 124 comments

Ask HN: What's Going on with AI Psychosis?

9 points by hhh 1d ago 2 comments

Feature Request: "Copy" Button Should Copy Only Main Output

3 points by vezycash 1d ago 2 comments

GPT5 is worse than 4.1-mini for text and worse than Sonnet 4 for coding

9 points by hitradostava 1d ago 16 comments

ChatGPT 5 is slow and no better than 4

60 points by iwontberude 2d ago 45 comments

Ask HN: How would you build second brain in the AI era?

9 points by divan 3d ago 5 comments

Ask HN: In which programming language is it better to make your own language?

8 points by Forgret 2d ago 19 comments

Ask HN: Do you think differently about working on open source these days?

31 points by gillyb 9h ago 59 comments

ChatGPT-5 Can't Do Basic Math

16 points by MarcellusDrum 3d ago 16 comments

Tell HN: Charles Irby has passed away

32 points by steven123 4d ago 4 comments

GPT-5 streaming requires submission of biometric data

35 points by binarymax 3d ago 7 comments

Ask HN: Are you running local LLMs? What are your key use cases?

15 points by briansun 3d ago 13 comments

Ask HN: OpenAI GPT-5 API seems to be significantly slower – is this expected?

4 points by tlogan 2d ago 3 comments

Dual-Crypt – Working AES+RSA Encryption Between Java Spring Boot and React/JS

1 muthuishere 0 8/11/2025, 4:53:17 PM
Encrypt in Java, decrypt in the browser (or seed JS-encrypted payloads into Java). Sounds straightforward. It’s not.

You hit landmines like:

Mismatched IV/tag defaults (Java Crypto API vs WebCrypto)

Conflicting key formats (X.509 vs JWK vs raw)

Varied Base64 implementations and encoding subtleties

I spent hours chasing these. So I made Dual-Crypt, a fully working example:

AES-256-GCM + RSA-2048, wired correctly across Java ↔ JS

Uses spki for public key, pkcs8 for private key, 12-byte IV, 128-bit tag

Copy-paste ready code and a live demo

Read how I hacked it into existence, and try it yourself: https://muthuishere.medium.com/dual-crypt-cross-platform-encryption-spring-boot-react-that-actually-works-c713ecdbb89c Live demo here: https://dualcrypt.muthuishere.site

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