This article is from a FAQ concerning SCO operating systems. While some of the information may be applicable to any OS, or any Unix or Linux OS, it may be specific to SCO Xenix, Open There is lots of Linux, Mac OS X and general Unix info elsewhere on this site: Search this site is the best way to find anything.
Ancient OSes sometimes left things out:
Most (all?) of SCO's release notes state that due to American government restrictions aimed at trying to prevent unfriendly nations from having access to data encryption technology, SCO does not ship crypt with their products. If you live in the States and would like crypt(C) and the crypt(S) libraries, contact SCO support. This is also worth trying in Canada, as the particular regulation in question permits export of such technology to Canada; however, I don't know if SCO will honour such requests. There is also an international version of crypt available from the usual places as lng225b.
Recently, some of the cryptographic restrictions have changed- for the better, we hope, though plenty of stupidity still remains.
OSR5.0.7 does now include crypt.
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