Thread: Need Help in C!!

i want to write some basic security code by user key in 1 sentence with 5 alphabet
like "Human" and insert generate key = 2.

Word = "human"
generateKey ="2"
then my output want be :
h--> j
u--> w
m-->o
a--> c
n--> p

out >> jwocp ..forward the aplhabet with 2(generateKey)

so, it is in C language got function 2 can fast forward the alphabet?
if not can suggest how 2 solve this problem. Thank You

there is no any fucntion to do this. but u can write a small fucntion which could achive this problem. the basic idea is as follow

[h] [e] [l] [l] [o] [\0] <-- think this is string which u wanted to encrypt it

the first thing u wanted to do is read the first char, get the ASCII value of that char incremnet the ASCII vlaue of that char by 2 you move two char forwad,

Code:

char str[]="hello";

str[0] = str[0] + 2; // 104 + 2 = 106 -->'j'

and if u want to deencrypt it the other way round read each char and -2 with each char ASCII value

hope u got the idea

ssharish2005

Originally Posted by s3ng

i want to write some basic security code by user key in 1 sentence with 5 alphabet
like "Human" and insert generate key = 2.

Word = "human"
generateKey ="2"
then my output want be :
h--> j
u--> w
m-->o
a--> c
n--> p

out >> jwocp ..forward the aplhabet with 2(generateKey)

so, it is in C language got function 2 can fast forward the alphabet?
if not can suggest how 2 solve this problem. Thank You

#define KEY 2

char str[]="human";
//make a loop for no of iteration=no of character in the given string,and increment each char with encryption key.
store the result in new string.This is your encrypted string.
str_new[0] = str[0] + 2; // char incremented by key (2)