1)   Quick3270 Secure 3.73
Quick3270 Secure is a powerful, high reliable 3270/5250 terminal emulator for Windows 95/98/NT/2000/XP. Quick3270 is fast, uses low memory and includes a large number of advanced features.

 2)   Text Encrypter 1.0
Text Encrypter is a Shareware Mac OS X application that can be used to encrypt files or random blocks of text.