Eksblowfish is a variant of the Blowfish cipher, modified to make
the key setup very expensive. ("Eks" stands for "expensive key
schedule".) This doesn't make it significantly cryptographically
stronger, but is intended to hinder brute-force attacks. It also
makes it unsuitable for any application requiring key agility. It
was designed by Niels Provos and David Mazieres for password hashing
in OpenBSD. See Crypt::Eksblowfish::Bcrypt for the hash algorithm.
See Crypt::Eksblowfish::Blowfish for the unmodified Blowfish cipher.
Eksblowfish is a parameterised (family-keyed) cipher. It takes a
cost parameter that controls how expensive the key scheduling is.
It also takes a family key, known as the "salt". Cost and salt
parameters together define a cipher family. Within each family, a
key determines an encryption function in the usual way. See
Crypt::Eksblowfish::Family for a way to encapsulate an Eksblowfish
cipher family.
Binary packages can be installed with the high-level tool pkgin (which can be installed with pkg_add) or pkg_add(1) (installed by default). The NetBSD packages collection is also designed to permit easy installation from source.
The pkg_admin audit command locates any installed package which has been mentioned in security advisories as having vulnerabilities.
Please note the vulnerabilities database might not be fully accurate, and not every bug is exploitable with every configuration.
Problem reports, updates or suggestions for this package should be reported with send-pr.