Best of Show HN in Cryptography

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#1 Show HN: filippo.io/mlkem768 – Post-Quantum Cryptography for the Go Ecosystem

315 points | 97 comments | Feb 01, 2024 | by FiloSottile

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#2 Show HN: MemSafeCrypto, Java cryptography primitives using DirectByteBuffer

49 points | 15 comments | Feb 11, 2022 | by java-man

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#3 Show HN: Cryptris, a video game on cryptography

48 points | 22 comments | Jun 16, 2014 | by lducas

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#4 Show HN: Hazmat Math – Elliptic curve arithmetic for Cryptography.io objects

33 points | 6 comments | Dec 09, 2017 | by tuxxy

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#5 Show HN: CryptoHack – a fun platform for learning cryptography

20 points | 3 comments | Apr 07, 2020 | by hyper_reality

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#6 Show HN: Real-World Cryptography, the book, is done and shipping

11 points | 3 comments | Sep 23, 2021 | by baby

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#7 Show HN: Signum – Kotlin Multiplatform Cryptography and PKI Library

10 points | 0 comments | Apr 09, 2025 | by JesusMcCloud

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#8 Show HN: A subversive cryptography import disclaimer boilerplate

9 points | 0 comments | Jan 30, 2018 | by tuxxy

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#9 Show HN: PQC.club – Post-Quantum Cryptography Tools and Alternatives

6 points | 0 comments | Dec 27, 2024 | by merlin_sh

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#10 Show HN: Stone – Cryptography Asset for Private Digital Currency Platforms

6 points | 0 comments | Mar 30, 2016 | by ncodes

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#11 Show HN: iOS app to learn about RSA cryptography

5 points | 4 comments | Mar 21, 2023 | by gsv83

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#12 Show HN: Decentralized Authentication Powered by Bitcoin Cryptography

5 points | 3 comments | Nov 01, 2020 | by vapormache

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#13 Show HN: Lazysodium – Cryptography made effortless

5 points | 1 comments | May 17, 2018 | by terlacious

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#14 Show HN: Pixelator.io – Where steganography meets cryptography

4 points | 0 comments | Dec 28, 2014 | by timetoogo

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#15 Show HN: Asymcrypt – asymmetric cryptography

4 points | 0 comments | Sep 10, 2018 | by andrewchambers

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#16 Show HN: Dhole, a developer-friendly cryptography interface built on libsodium

3 points | 2 comments | Apr 23, 2019 | by some_furry

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#17 Show HN: My 8th grade documentary on cryptography (2005)

3 points | 1 comments | Dec 01, 2014 | by chatmasta

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#18 Show HN: KyberLock – Crystals-Kyber Post-Quantum Cryptography in the Browser

3 points | 0 comments | Oct 18, 2024 | by leonardoeloy

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#19 Show HN: Woodpecker, an unusual Zachtronics-inspired cryptography challenge

3 points | 0 comments | Nov 15, 2022 | by katiewat

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#20 Show HN: Using visual cryptography for physical keyrings

3 points | 0 comments | Jun 24, 2022 | by anfractuosity

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#21 Show HN: More Letters – A Cryptography Puzzle Game

3 points | 0 comments | Aug 03, 2020 | by max0563

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#22 Show HN: Sodium-Plus – Usable Cryptography for JavaScript Developers

3 points | 0 comments | Oct 07, 2019 | by CiPHPerCoder

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#23 Show HN: Deniable Website – Web Cryptography API Use Case

3 points | 0 comments | Mar 01, 2017 | by jjperezaguinaga

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#24 Show HN: Stone – A Cryptography Object for Future Digital Currency Platforms

3 points | 0 comments | Mar 30, 2016 | by ncodes

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#25 Show HN: Cryptography Puzzle Game for Geeks

2 points | 1 comments | Mar 15, 2022 | by turcutudor

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#26 Show HN: Dhole, a developer-friendly cryptography interface built on libsodium

2 points | 1 comments | Apr 18, 2019 | by some_furry

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#27 Show HN: Tink-rust – A Rust port of Google's Tink cryptography library

2 points | 0 comments | Dec 20, 2020 | by okokok___

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#28 Show HN: Lockbox – User-friendly CLI/lib over cryptography.io encryption cipher

2 points | 0 comments | Jun 04, 2017 | by johnwheeler

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#29 Show HN: Mojimess – Cryptography for Kids

1 points | 1 comments | Jun 16, 2020 | by royletron

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#30 Show HN: Dhole – PHP/JS Cryptography for Humans (and Furries)

1 points | 1 comments | Apr 06, 2020 | by some_furry

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#31 Show HN: Elliptic.js – Fast plain JavaScript Elliptic Curve cryptography

1 points | 0 comments | May 25, 2014 | by indutny

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#32 Show HN: Ask Cryptography, a platform to discuss cryptography research papers

1 points | 0 comments | Aug 22, 2022 | by talayhan_a

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#33 Show HN: Streaming chunked AEAD cryptography [pdf]

1 points | 0 comments | Aug 16, 2022 | by sdrapkin

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#34 Show HN: Scratch Cryptography Library

1 points | 0 comments | Jul 16, 2022 | by Retr0id

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#35 Show HN: A serverless digital identity (cryptography)

1 points | 0 comments | Aug 20, 2021 | by teamconcords

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#36 Show HN: More Letters – A cryptography puzzle game

1 points | 0 comments | Jul 29, 2020 | by max0563

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#37 Show HN: Sodium-Plus (Cross-Platform JavaScript Cryptography Library)

1 points | 0 comments | Oct 16, 2019 | by CiPHPerCoder

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#38 Show HN: Sodium-Plus – JavaScript Cryptography for Humans

1 points | 0 comments | Oct 11, 2019 | by CiPHPerCoder

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#39 Show HN: Na+ – A Positive Cryptography Experience for JavaScript Developers

1 points | 0 comments | Oct 07, 2019 | by CiPHPerCoder

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#40 Show HN: Daily emails with new cryptography papers

1 points | 0 comments | Aug 03, 2019 | by alinush

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#41 Show HN: Dhole, a developer-friendly cryptography interface built on libsodium

1 points | 0 comments | Apr 22, 2019 | by some_furry

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#42 Show HN: 'orion' – yet another attempt at pure-Rust cryptography

1 points | 0 comments | Sep 25, 2018 | by smfkfxuf

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#43 Show HN: McEliece Post-Quantum Cryptography for Node.js

1 points | 0 comments | Sep 26, 2016 | by ShaneCurran

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#44 Show HN: Vcrypt: Visual Cryptography algorithms in golang

1 points | 0 comments | Sep 01, 2016 | by suyash93

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#45 Show HN: Cryptography-to-Math

1 points | 0 comments | Nov 23, 2015 | by hodgesmr

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#46 Show HN: Retriever – Securely share secrets over the internet

193 points | 99 comments | Jan 23, 2024 | by asadeddin

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#47 Show HN: Windsurf – Agentic IDE

101 points | 51 comments | Nov 13, 2024 | by fortenforge

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#48 Show HN: TideCloak – Decentralized IAM for security and user sovereignty

54 points | 36 comments | Dec 19, 2024 | by SaltNHash

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#49 Show HN: Quantum Coin Flip - The most random coin flip on the internet

23 points | 7 comments | Feb 26, 2024 | by jeanmayer

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#50 Show HN: Ente Auth – open-source 2FA app with end-to-end encrypted backups

16 points | 2 comments | Nov 04, 2023 | by vishnumohandas

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#51 Show HN: TutaCrypt, post-quantum encryption protocols for securing emails [pdf]

15 points | 8 comments | Mar 18, 2024 | by Tutanota

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#52 Show HN: Stamp – A Cryptographic Identity System

9 points | 5 comments | Sep 08, 2021 | by orthecreedence

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#53 Show HN: Tandem – An Engine for Secure Multi-Party Computation (Written in Rust)

9 points | 2 comments | Nov 30, 2022 | by skoodge

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#54 Show HN: Secure end-to-end client sessions and API calls using crypto key pairs

9 points | 0 comments | Dec 25, 2022 | by kdragon

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#55 Show HN: b2v.xyz – Protection against impersonation attacks

8 points | 0 comments | Jun 16, 2024 | by b2v

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#56 Show HN: Trove of Decentralized Research and Tools

8 points | 0 comments | Feb 20, 2024 | by wslh

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#57 Show HN: I Built a Groth16 ZK-Proof Verifier from Scratch Using Rust

6 points | 3 comments | Dec 17, 2024 | by furfural

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#58 Show HN: Ente Photos – v1.0

6 points | 2 comments | Mar 29, 2025 | by vishnumohandas

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#59 Show HN: Decentralised Digital Identity and Messaging

5 points | 5 comments | Oct 10, 2020 | by _wwhq

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#60 Show HN: Callosum – A smarter OpenAPI editor/client

5 points | 0 comments | Dec 23, 2024 | by pbnjay

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#61 Show HN: Rot – Secure Secrets Management for the Modern Sysadmin

4 points | 3 comments | Apr 26, 2024 | by candiddevmike

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#62 Show HN: IdentityLM, cryptographic proof of identity via language model output

4 points | 3 comments | Aug 01, 2023 | by HNx1

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#63 Show HN: Encipher.it – Encrypt the text messages, e-mails or files

4 points | 0 comments | May 03, 2013 | by encipher

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#64 Show HN: Non Interactive ZKP with Fiat-Shamir Heuristic and ECC in Go

4 points | 0 comments | Mar 29, 2025 | by furfural

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#65 Show HN: Self Sovereign Verification – don’t pay for verified

4 points | 0 comments | Apr 11, 2023 | by miketery

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#66 Show HN: Secure, keyboard-less login. Implemented using state machines

4 points | 0 comments | May 02, 2020 | by nullvoxpopuli

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#67 Show HN: Lightning-Fast Magic Link Auth for Python. Ultra Secure. Easy as Cake

3 points | 2 comments | Mar 17, 2025 | by itsmeadarsh

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#68 Show HN: Cryptle – Wordle for Cryptogrphy

3 points | 1 comments | May 02, 2025 | by Haris1245

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#69 Show HN: B2V – Protection against impersonation attacks

3 points | 0 comments | Jun 30, 2024 | by b2v

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#70 Show HN: Secure Session Cookie Scheme Using Existing Tech

3 points | 0 comments | Apr 04, 2024 | by jwally

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#71 Show HN: Vortex – Secure, Transport-Agnostic, E2EE Chat in Under 600 Lines

3 points | 0 comments | Nov 09, 2023 | by fdomingues

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#72 Show HN: Open source, end-to-end encrypted task management for activists

3 points | 0 comments | Jul 15, 2018 | by elimisteve

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#73 Show HN: Some “new” stuff related with Enigma Machines

2 points | 3 comments | Oct 30, 2016 | by voidbrainvoid

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#74 Show HN: Quantum Safety Firefox browser add-on

2 points | 0 comments | Feb 27, 2025 | by andrewescott

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#75 Show HN: Password-protect a file with Easy Encryption Everywhere

2 points | 0 comments | Mar 13, 2024 | by mdnahas

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#76 Show HN: The first-ever whole-file ciphering product with native asymmetric Keys

1 points | 8 comments | Nov 17, 2023 | by RTKtech

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#77 Show HN: A GitHub Action that creates Trusted Timestamps for your Git repo

1 points | 2 comments | Aug 21, 2024 | by radicalexponent

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#78 Show HN: CodeSwissKnife – Free Beta Developer Toolkit for macOS and Windows

1 points | 1 comments | Oct 16, 2024 | by 8mobile

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#79 Show HN: My Sunday Morning Project Encrypts Plaintext On Your iPhone

1 points | 0 comments | Oct 13, 2013 | by DaNmarner

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#80 Show HN: Filmle – Wordle for Films/TV Shows

1 points | 0 comments | May 05, 2025 | by Haris1245

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#81 Show HN: AI-agent MPC crypto wallet protects you from malicious transactions

1 points | 0 comments | Mar 26, 2025 | by JacobPlaster

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#82 Show HN: I made the easiest authentication library for Python. Seriously, Yes.

1 points | 0 comments | Mar 18, 2025 | by itsmeadarsh

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#83 Show HN: File-Encryptor

1 points | 0 comments | Apr 18, 2024 | by haln

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#84 Show HN: EasyPaperTracker – Easily track research topics

1 points | 0 comments | Nov 10, 2023 | by bofeng1997

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#85 Show HN: Forte, an open-source self-hosted music platform, is now federated

1 points | 0 comments | Apr 21, 2023 | by kaangiray26

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#86 Show HN: I made a site where you can travel in space in your browser

179 points | 77 comments | Apr 29, 2022 | by cryptography

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#87 Show HN: I built a gravity simulator in pure CSS

64 points | 44 comments | Jan 12, 2022 | by cryptography

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#88 Show HN: Simple tool built for my manager is now becoming its own startup

18 points | 13 comments | Jan 26, 2024 | by cryptography

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#89 Show HN: Differential Fuzzing of Cryptographic Libraries

84 points | 12 comments | Oct 24, 2019 | by guidovranken

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#90 Show HN: Vekos – a Rust OS with Built-In Cryptographic Verification

82 points | 15 comments | Dec 04, 2024 | by jgiraldo29

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#91 Show HN: S-Cache – Secure storage for cryptographic secrets, modeled after sudo

51 points | 8 comments | Mar 20, 2020 | by lisper

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#92 Show HN: A simple app to cryptographically time-lock files

30 points | 4 comments | Apr 29, 2020 | by barkding

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#93 Show HN: CLMM, an exercise in cryptographic minimalism

22 points | 10 comments | Jan 22, 2015 | by lisper

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#94 Show HN: Rget verify GitHub releases against a public recorded cryptographic log

22 points | 4 comments | Aug 05, 2019 | by philips

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#95 Show HN: Offline, cryptographically secure, pseudo-random IOTA seed generator

11 points | 0 comments | Dec 13, 2017 | by hidiegomariani

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#96 Show HN: Cryptographic Addition Chain Generation in Go

10 points | 0 comments | May 20, 2020 | by mmcloughlin

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#97 Show HN: Coze – cryptographic JSON messaging specification

8 points | 0 comments | Jul 10, 2023 | by Zamicol

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#98 Show HN: There's No Cryptographic Integrity in How We Prove We're Safe

6 points | 4 comments | Apr 15, 2025 | by Charismaapp

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#99 Show HN: Badkeys.info – checking cryptographic keys for known vulnerabilities

6 points | 3 comments | Apr 25, 2022 | by hannob

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#100 Show HN: A Password Validator Based on Raw Cryptographic Entropy

5 points | 0 comments | Oct 15, 2020 | by lanecwagner

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