visual studio 2008 - Encrypt strings in pure C in order to hide them in the executable -

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i trying avoid literal strings appearing in executable. want put string encrypted in executable , decrypt , use @ runtime. read bit how hide string in binary code? , http://bytes.com/topic/c/answers/222096-hiding-string-compiled-code, not want.

could done using macros? example, can declare wide char string using

wchar_t str[] = l"value"

or

wchar_t *str = l"value"

and magical l convert chars widechars. possible create magical l make encrypted strings? e.g:

enc"value"

for moment defining encrypted strings macros:

#define sample_string "ftnurd eru etrth" /*random chars imitating encryption*/

and passing them normal function like

char *decstr(char *data)

is there easier method this?

i using windows xp sp3 visual c++ 2008 express.

why not create encryption , decryption function? write like

char *hidden_password = my_encrypt("passw0rd"); puts(hidden_pasword); // "acud5ttei23w8d" // ... char *real_password = my_decrypt("acud5ttei23w8d"); puts(real_password); // "passw0rd"

however, it's not idea store hard-wired text strings in executable if contain sensitive data. also, don't reinvent wheel - before rolling own encryption method, try established, high-quality, cryptographically secure libraries openssl.


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