memfrob(3) Library Functions Manual memfrob(3) NAME memfrob - frobnicate (obfuscate) a memory area LIBRARY Standard C library (libc, -lc) SYNOPSIS #define _GNU_SOURCE /* See feature_test_macros(7) */ #include void *memfrob(void s[.n], size_t n); DESCRIPTION The memfrob() function obfuscates 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 obfuscated memory area. Note that this function is not a proper encryption routine as the XOR constant is fixed, and is suitable only for hiding strings. RETURN VALUE The memfrob() function returns a pointer to the obfuscated memory area. ATTRIBUTES For an explanation of the terms used in this section, see attributes(7). +--------------------------------------------+---------------+---------+ |Interface | Attribute | Value | +--------------------------------------------+---------------+---------+ |memfrob () | Thread safety | MT-Safe | +--------------------------------------------+---------------+---------+ STANDARDS GNU. SEE ALSO bstring(3), strfry(3) Linux man-pages 6.9.1 2024-05-02 memfrob(3)