Blowfish Encryption Utility. MySecret is a command-line freeware utility that can be used to encrypt and decrypt messages in an email-friendly manner. It works by encrypting or decrypting the contents of the clipboard. It can also work in file mode.

MySecret.exe is small - 50 kB - and quick. It uses the Blowfish algorithm to create base64-encoded text output that can be easily transmitted over the Internet or stored on any computer system. For more information on Blowfish see the web site of its inventor, Bruce Schneier and his references to Products that Use Blowfish.

Usage: MySecret [OPTIONS] [-p password] [[-i] infile [[-o] outfile]]
OPTIONS:
-?|-h display this Help
-e|-d force Encrypt/Decrypt
-n do Not ask to confirm password
-w Warn before overwriting existing outfile
-2 use v2.0 algorithm (no compression)
-@ use stdin/stdout pipes if in/outfile not given
-L display licence conditions
EXAMPLES:
MySecret (=clipboard-mode, prompts for password)
MySecret -p "my pass phrase"
MySecret infile outfile (=file-mode)
MySecret -@ infile (output to stdout)
MySecret -@ -o outfile (input from stdin)
MySecret -@ (input from stdin/output to stdout)

The license of this software is Freeware, you can free download and free use this file encryption software.