Small, light text editor / note taker with built-in strong encryption?

Solution 1:

LockNote works for me.

Store your most valuable notes in a LockNote. Hide your everyday notes in a safe place. Application and document in one: the mechanism to encrypt and decrypt a note is part of it. Secure, simple, independent. No installation required.

Solution 2:

NotepadCrypt

"Overall Design: Sha256 hash is used to convert an ascii pass phrase to a 256 bit encryption key. Pseudorandom data is used as an initialization vector for AES-256 encryption. Optionally, a the encryption key (NOT the passphrase) is encrypted using a second master key, and included in the file header. This master key can be used as an emergency data recovery key, or as a second key to be used by programs to read encrypted files."

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