@noble/post-quantum
Auditable & minimal JS implementation of post-quantum public-key cryptography: FIPS 203, 204, 205
cryptico-js
Encryption/Decryption Library (AES/RSA, based on Cryptico)
ppk-to-openssh
A pure JavaScript library for parsing and converting PuTTY private key files (.ppk) to OpenSSH format. Supports all PPK versions (v2 and v3) and key types (RSA, DSA, ECDSA, Ed25519). Handles both encrypted and unencrypted keys with full MAC verification.