i am using cipher-mode 'CTR' for file encryption with this mode plain-text and cipher text becomes same size with no-padding and even string less than 16 byte(128bit) can be encrypted say 5 byte string can be encrypted as 5 byte thanks for chilkat!! . so with encrypt, same length problem is solved but still lack of format preserving . is there any way for format preserving encryption ? or FFX-AES supported in latest chilkat encryption module ?
Thanks! Chilkat does not have anything for it now, but I added it to the very long list of possible future additions..
thank-you, i studied feistel-network and start an implementation of my own library for my DBF (foxpro)
but i think chilkat will do that well... it shall not be difficult for chilkat to make it i wish soon.... ^^