1)   Total Text Security 1.0
Total Text Security can be used to secure any text (in an e-mail, instant message, or in a file). This application is easy-to-use, powerful, and usable with programs of any type. It can protect your data with passwords or RSA keys(as used by PGP).

 2)   PrivyPad 2.51
Create, edit, read or email an encrypted/plain text file with this Notepad-like text editor. Supports 4 encryption/decryption algorithms: BLOWFISH, Triple DES(3DES), RIJNDAEL(AES), XOR. Use it to protect strictly confidential data, to keep passwords.