Bcrypt
Bcrypt is a file encryption utility that is a standard part of the Tiny Core base. Hence, you do not need to install it.
If you would like to encrypt a file of personal information or passwords, just enter the information into a text, spreadsheet, or zipped file. Let's say you called it “passwords”. Get into a terminal window in the same directory as the file and type in:
bcrypt passwords <Enter>
You'll be prompted for a password. When you wish to open the file later, you will type in:
bycrypt passwords.bfe <Enter>
After putting in your password, the file will be returned to its unencrypted format for use.