need help on encryption and decryption

11max11 · Post by **11max11** » Tue Dec 11, 2007 5:16 pm

hihi..
can anyone give me information of encryption and decryption source code..
because i'm a newbie in MPLAB IDE...thx

Post by **Benj** » Tue Dec 11, 2007 5:59 pm

Hello

A very basic form of encryption could be to swap the nibbles in a byte.

Eg 00001111 becomes 11110000

This method can be used up to a point - i.e. you can use more then one conversion.

Eg 010101010 becomes 01101001 etc

As long as you know how you scrambled the data then you can repeat the process in reverse to retreive the data.

If you require a industrial level of encryption then use google to look up "PGP " (pretty good privacy) or "public private key encryption".