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.
Picocrypt allows you to generate a secure keyfile to use as an alternative or addition to a password. Open the Picocrypt application. Locate the Keyfiles section in the interface. Click the Create button to the right of "Keyfiles". picocrypt
Start: Click Encrypt (or Zip and Encrypt for multiple files) to generate the encrypted .pcv file. Additional Options PicoCrypt — Quick Guide What PicoCrypt is PicoCrypt