fSekrit

fSekrit is a small application for keeping securely encrypted notes. These notes are truly stand-alone; the editor program and your note are merged together into a tiny self-contained program file, bypassing the need to install a special application to view your data. This makes fSekrit ideal for keeping encrypted notes on, for example, USB flash drives.

fSekrit uses very strong encryption to ensure that your data is never at risk. Rather than using hocus-pocus home-brewed algorithms, fSekrit uses the standard, military grade, peer-reviewed AES/Rijndael in CBC mode, with a 256-bit keysize.

Self contained fSekrit notefiles are tiny! Only around 50k plus the size of your encrypted text. Furthermore, fSekrit runs across the entire windows range: 9x/NT/2K/XP, 32-bit as well as 64-bit x86 editions.