Rafael Sampaio

Rafael Sampaio

CipherLockCipherLock
Dev & Cryptography Enthusiast
#97469557 followers0 following
#2,424Last month
15 KP
>10,000All time
260 KP

About

I’m a Computer Science student at UNICAP (Recife, Brazil) currently deep-diving into the foundations of cryptography for my final thesis. My focus is on turning complex, low-level concepts into didactic and functional digital experiences. I follow a "build-to-learn" philosophy. I believe the best way to master any architecture or algorithm is to engineer it from scratch. Outside of academia, I spend my time building SaaS platforms with themes that interest or motivate me, reading about LWC, and playing video games. Currently iterating on CipherLock, a hub for interactive cryptographic tool for education.

Badges

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Maker History

  • CipherLock
    CipherLockLearn ciphers by breaking them
    May 2026
    • 🎉
    Joined Product HuntApril 30th, 2026

Forums

CipherLockp/cipherlock•

20d ago

CipherLock v1.3 - Explore cryptography on a world map and a family tree of every cipher

CipherLock v1.3 is here. Same promise (client-side, no accounts, no tracking), with the new content and interaction update.

FOUR NEW ANCIENT ASIAN CIPHERS

Added Yin Fu and Yin Shu from the Chinese Six Secret Teachings (around 400 BC), Mlecchita-vikalpa from the Kama Sutra (around 400 CE), and Shinobi Iroha from the Japanese Bansenshukai ninja manual (1676). The timeline finally reaches beyond the Mediterranean tradition. Yin Shu is essentially Shamir's Secret Sharing, invented 2,400 years earlier.

THE ATLAS: A WORLD MAP OF CRYPTOGRAPHY

CipherLockp/cipherlock•

3mo ago

CipherLock v1.2 - share an encrypted message with a single link, now in 9 languages

CipherLock v1.2 is here. Same promise (encrypt and learn, 100% in your browser, no accounts, no tracking), with a lot of new things since launch.

SHARE AN ENCRYPTED MESSAGE WITH A LINK

Encrypt something, copy the link, send it. When the other person opens it, CipherLock fills the tool and reveals the message automatically, framed right where you can read it. The encrypted payload travels inside the URL fragment, so it never reaches any server. Native share sheet on mobile, WhatsApp and X on desktop, or just copy the link.

NOW IN 9 LANGUAGES

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5mo ago

CipherLock - Learn ciphers by breaking them

CipherLock is a minimalist interactive hub to explore cryptography. Features Caesar, Vigenère, Morse, Atbash & Rail Fence ciphers. Includes an Academy for foundations and a Daily Enigma challenge. 100% client-side, open source & privacy-focused.
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