GitHub Repository

Local-only password manager — AES-256-GCM encrypted, no cloud. Backend + Chrome extension + macOS app.

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1Password Replica (Security Challenge)

Name: 1Password Replica (Security Challenge)
Availability: InStock
Author: davinci123

by davinci123·Feb 25, 2026·1 point·2 comments

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AI Analysis

●●SolidWizardryNiche GemBold Bet

1Password replica built entirely by Claude Code to audit AI-generated security code.

Strengths

•Honest security model — no obscurity, intentionally open for audit with specific scrutiny points listed.
•Solid crypto fundamentals: Argon2id + AES-256-GCM + memory-only key holding is sound architecture.
•Deliberately designed as a security research artifact, not a competitor — clears ethical position.

Weaknesses

•No sync across devices (acknowledged), which makes it impractical vs. 1Password/Bitwarden for multi-device users.
•Single-person maintenance on security-critical software is inherently risky regardless of code quality.

Post Description

I created a replica for 1Password which I created in minutes using Claude Code. I am not even a full-time engineer. I want security researchers to poke hole in the model and find out glaring security holes in a codebase created by an agent, not reviewed or coded bu a human.