Picocrypt ((new)) Jun 2026

You can protect your password with a physical file (a photo, a text file, a binary blob). An attacker needs your password and a specific file to decrypt your data. This provides excellent protection against keyloggers or forced disclosure (you cannot reveal a file you have already deleted from your RAM).

For top-secret data, this mode uses a cascade of both XChaCha20 and Serpent ciphers, authenticated with HMAC-SHA3 instead of the default BLAKE2b. picocrypt

PicoCrypt is a tiny, open-source encryption tool/library (assumed: small footprint, easy to embed) that provides simple symmetric encryption for files or small messages using standard cryptographic primitives. You can protect your password with a physical

PicoCrypt is a minimalist, printable, and easy-to-use cryptographic scheme that allows users to encrypt and decrypt messages using basic cryptographic techniques. It was designed to be used with pen and paper, without the need for any electronic devices. For top-secret data, this mode uses a cascade

It is free. It is tiny. It is audited. It repairs bit rot. It uses three ciphers simultaneously.

: The developer officially archived the GitHub repository on August 4, 2025, stating the software is stable, audited, and "complete".