yp-tools should be ported to use NSS library for cryptography.
See the tracking bug for details and links on how it could be done.
This bug is about the `yppasswd` utility, which uses crypt() function to encrypt new passwords.
I considered porting this utility to use the NSS library. Two points why it does not make sense:
1. The libcrypt interface in glibc can use NSS internally: http://udrepper.livejournal.com/20948.html
2. yppasswd is deprecated, and no longer developed (see its man page for a proof). Some distributions have it only as a symlink to passwd.
The first point is the reason why I am closing it as NOTABUG.