> Sure. You need to get/write a version of crypt.c that supports:
>      char *crypt(const char *key, const char *setting)
>      int   setkey(char *key)
>      int   encrypt(char *block, int flag)
>      int   des_setkey(const char *key)
>      int   des_cipher(const char *in, char *out, long salt, int count)

Are ALL of these functions restricted?

For example, what restricted code is present in setkey()?  Don't only the
functions that do the actual encryption need to be rewritten?

I think of the above, only des_cipher() is restricted, no?