memfrob

MEMFROB(3)                 Linux Programmer's Manual                MEMFROB(3)



NAME
       memfrob - frobnicate (encrypt) a memory area

SYNOPSIS
       #include <string.h>

       void *memfrob(void *s, size_t n);

DESCRIPTION
       The  memfrob() function encrypts the first n bytes of the memory area s
       by exclusive-ORing each character with the number 42.  The  effect  can
       be reversed by using memfrob() on the encrypted memory area.

       Note  that  this function is not a proper encryption routine as the XOR
       constant is fixed, and is only suitable for hiding strings.

RETURN VALUE
       The memfrob() function returns a pointer to the encrypted memory  area.

CONFORMING TO
       The  memfrob()  function  is  unique  to  the Linux C Library and GNU C
       Library.

SEE ALSO
       strfry(3)



GNU                               1993-04-12                        MEMFROB(3)