Set the key used in encryption
#include <stdlib.h> void setkey( const char *__key );
Use the -l c option to qcc to link against this library. This library is usually included automatically.
|This function is in libc.a, but not in libc.so (in order to save space).|
The setkey() function allows limited access to the NBS Data Encryption Standard (DES) algorithm itself. It derives a 56-bit key from the given __key by dividing the array into groups of 8 and ignoring the last bit in each group.
POSIX 1003.1 XSI