crypt.conf(4) File Formats crypt.conf(4)
NAME
crypt.conf - configuration file for pluggable crypt modules
SYNOPSIS
/etc/security/crypt.conf
DESCRIPTION
crypt.conf is the configuration file for the pluggable crypt architecture. Each crypt module must provide a function to generate a pass-
word hash, crypt_genhash_impl(3C), and a function to generate the salt, crypt_gensalt_impl(3C).
There must be at least one entry in crypt.conf with the same name as is stored in the crypt_algorithm_magic symbol of the module. The docu-
mentation provided with the module should list this name.
The module_path field specifies the path name to a shared library object that implements crypt_genhash_impl(), crypt_gensalt_impl(), and
crypt_algorithm_magic. If the path name is not absolute, it is assumed to be relative to /usr/lib/security/$ISA. If the path name con-
tains the $ISA token, the token is replaced by an implementation-defined directory name that defines the path relative to the calling pro-
gram's instruction set architecture.
The params field is used to pass module-specific options to the shared objects. See crypt_genhash_impl(3C) and crypt_gensalt_impl(3C). It
is the responsibility of the module to parse and interpret the options. The params field can be used by the modules to turn on debugging
or to pass any module-specific parameters that control the output of the hashing algorithm.
EXAMPLES
Example 1: Provide compatibility for md5crypt-generated passwords.
The default configuration preserves previous Solaris behavior while adding compatibility for md5crypt-generated passwords as provided on
some BSD and Linux systems.
#
# crypt.conf
#
1 /usr/lib/security/$ISA/crypt_bsdmd5.so
Example 2: Use md5crypt to demonstrate compatibility with BSD- and Linux-based systems.
The following example lists 4 algorithms and demonstrates how compatibility with BSD- and Linux-based systems using md5crypt is made avail-
able, using the algorithm names 1 and 2.
#
# crypt.conf
#
md5 /usr/lib/security/$ISA/crypt_md5.so
rot13 /usr/lib/security/$ISA/crypt_rot13.so
# For *BSD/Linux compatibilty
# 1 is md5, 2 is Blowfish
1 /usr/lib/security/$ISA/crypt_bsdmd5.so
2 /usr/lib/security/$ISA/crypt_bsdbf.so
ATTRIBUTES
See attributes(5) for descriptions of the following attributes:
+-----------------------------+-----------------------------+
| ATTRIBUTE TYPE | ATTRIBUTE VALUE |
+-----------------------------+-----------------------------+
|Interface Stability |Evolving |
+-----------------------------+-----------------------------+
SEE ALSO
passwd(1), crypt(3C), crypt_genhash_impl(3C), crypt_gensalt(3C), crypt_gensalt_impl(3C), getpassphrase(3C), passwd(4), attributes(5),
crypt_unix(5)
SunOS 5.10 10 Jun 2002 crypt.conf(4)
