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crypt.conf - configuration file for pluggable crypt modules
/etc/security/crypt.conf
crypt.conf is the configuration file for the pluggable crypt architecture. Each crypt module must provide a function to generate a password 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 documentation 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 contains the $ISA token, the token is replaced by an implementation-defined directory name that defines the path relative to the calling program's instruction set architecture.
The params field is used to pass module-specific options to the shared objects. See crypt_genhash_impl(3C) and crypt_gensalt_impl(3C). It is the responsibility of the module to parse and interpret the options. The params field can be used by the modules to turn on debugging or to pass any module-specific parameters that control the output of the hashing algorithm.
Example 1 Provide compatibility for md5crypt-generated passwords.
The default configuration preserves previous Solaris behavior while adding compatibility for md5crypt-generated passwords as provided on some BSD and Linux systems.
# # crypt.conf # 1 /usr/lib/security/$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 available, 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
See attributes(5) for descriptions of the following attributes:
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passwd(1), crypt(3C), crypt_genhash_impl(3C), crypt_gensalt(3C), crypt_gensalt_impl(3C), getpassphrase(3C), passwd(4), attributes(5), crypt_unix(5)
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