from
crypt(1):
Code:
Warning
The cryptographic value of enigma is rather small. This program is only
provided here for compatibility with other operating systems that also
provide an implementation (usually called crypt(1) there). For real
encryption, refer to bdes(1), openssl(1), pgp(1) (ports/security/pgp), or
gpg(1) (ports/security/gnupg). However, restrictions for exporting,
importing or using such tools might exist in some countries, so those
stronger programs are not being shipped as part of the operating system
by default.