Command-line calculator for Maidenhead- (QTH-, QRA-) Locators.
A family of FLEA-inspired CSPRNGs and Stream Ciphers
A family of small-state CSPRNGs and Stream Ciphers
A minimal CSPRNG reflecting the Zen of cipher design
ISC lets you encrypt & decrypt text and files of any type up to 4GB
Replace text with POS equivalent text, in a reversible fashion.
Poll Your Audience with this HTML Survey Generator for Wifi/LAN