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man pages section 5: Standards, Environments, and Macros     Oracle Solaris 11 Information Library
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Document Information

Preface

Introduction

Standards, Environments, and Macros

acl(5)

ad(5)

advance(5)

adv_cap_1000fdx(5)

adv_cap_1000hdx(5)

adv_cap_100fdx(5)

adv_cap_100hdx(5)

adv_cap_10fdx(5)

adv_cap_10hdx(5)

adv_cap_asym_pause(5)

adv_cap_autoneg(5)

adv_cap_pause(5)

adv_rem_fault(5)

ANSI(5)

architecture(5)

ascii(5)

attributes(5)

audit_binfile(5)

audit_flags(5)

audit_remote(5)

audit_syslog(5)

availability(5)

brands(5)

C++(5)

C(5)

cancellation(5)

cap_1000fdx(5)

cap_1000hdx(5)

cap_100fdx(5)

cap_100hdx(5)

cap_10fdx(5)

cap_10hdx(5)

cap_asym_pause(5)

cap_autoneg(5)

cap_pause(5)

cap_rem_fault(5)

charmap(5)

compile(5)

condition(5)

crypt_bsdbf(5)

crypt_bsdmd5(5)

crypt_sha256(5)

crypt_sha512(5)

crypt_sunmd5(5)

crypt_unix(5)

CSI(5)

device_clean(5)

dhcp(5)

dhcp_modules(5)

environ(5)

eqnchar(5)

extendedFILE(5)

extensions(5)

filesystem(5)

fmri(5)

fnmatch(5)

formats(5)

fsattr(5)

grub(5)

gss_auth_rules(5)

hal(5)

iconv_1250(5)

iconv_1251(5)

iconv(5)

iconv_646(5)

iconv_852(5)

iconv_8859-1(5)

iconv_8859-2(5)

iconv_8859-5(5)

iconv_dhn(5)

iconv_koi8-r(5)

iconv_mac_cyr(5)

iconv_maz(5)

iconv_pc_cyr(5)

iconv_unicode(5)

ieee802.11(5)

ieee802.3(5)

ipfilter(5)

ipkg(5)

isalist(5)

ISO(5)

kerberos(5)

krb5_auth_rules(5)

krb5envvar(5)

KSSL(5)

kssl(5)

labels(5)

largefile(5)

ldap(5)

lf64(5)

lfcompile(5)

lfcompile64(5)

link_duplex(5)

link_rx_pause(5)

link_tx_pause(5)

link_up(5)

locale(5)

locale_alias(5)

lp_cap_1000fdx(5)

lp_cap_1000hdx(5)

lp_cap_100fdx(5)

lp_cap_100hdx(5)

lp_cap_10fdx(5)

lp_cap_10hdx(5)

lp_cap_asym_pause(5)

lp_cap_autoneg(5)

lp_cap_pause(5)

lp_rem_fault(5)

man(5)

mansun(5)

me(5)

mech_spnego(5)

mm(5)

ms(5)

MT-Level(5)

mutex(5)

MWAC(5)

mwac(5)

nfssec(5)

NIS+(5)

NIS(5)

nis(5)

nwam(5)

openssl(5)

pam_allow(5)

pam_authtok_check(5)

pam_authtok_get(5)

pam_authtok_store(5)

pam_deny(5)

pam_dhkeys(5)

pam_dial_auth(5)

pam_krb5(5)

pam_krb5_migrate(5)

pam_ldap(5)

pam_list(5)

pam_passwd_auth(5)

pam_pkcs11(5)

pam_rhosts_auth(5)

pam_roles(5)

pam_sample(5)

pam_smbfs_login(5)

pam_smb_passwd(5)

pam_tsol_account(5)

pam_unix_account(5)

pam_unix_auth(5)

pam_unix_cred(5)

pam_unix_session(5)

pam_zfs_key(5)

pkcs11_kernel(5)

pkcs11_kms(5)

pkcs11_softtoken(5)

pkcs11_tpm(5)

POSIX.1(5)

POSIX.2(5)

POSIX(5)

privileges(5)

prof(5)

pthreads(5)

RBAC(5)

rbac(5)

regex(5)

regexp(5)

resource_controls(5)

sgml(5)

smf(5)

smf_bootstrap(5)

smf_method(5)

smf_restarter(5)

smf_security(5)

smf_template(5)

solaris10(5)

solaris(5)

solbook(5)

stability(5)

standard(5)

standards(5)

step(5)

sticky(5)

SUS(5)

SUSv2(5)

SUSv3(5)

SVID3(5)

SVID(5)

tecla(5)

teclarc(5)

term(5)

threads(5)

trusted_extensions(5)

vgrindefs(5)

wbem(5)

xcvr_addr(5)

xcvr_id(5)

xcvr_inuse(5)

XNS4(5)

XNS(5)

XNS5(5)

XPG3(5)

XPG4(5)

XPG4v2(5)

XPG(5)

zones(5)

crypt_unix

- traditional UNIX crypt algorithm

Description

The crypt_unix algorithm is the traditional UNIX crypt algorithm. It is not considered sufficiently secure for current systems and is provided for backwards compatibility. The crypt_sunmd5(5), crypt_bsdmd5(5), or crypt_bsdbf(5) algorithm should be used instead.

The algorithm identifier for policy.conf(4) is __unix__. There is no entry in crypt.conf(4) for this algorithm.

The crypt_unix algorithm is internal to libc and provides the string encoding function used by crypt(3C) when the first character of the salt is not a "$".

This algorithm is based on a one-way encryption algorithm with variations intended (among other things) to frustrate use of hardware implementations of a key search. Only the first eight characters of the key passed to crypt() are used with this algorithm; the rest are silently ignored. The salt is a two-character string chosen from the set [a-zA-Z0-9./]. This string is used to perturb the hashing algorithm in one of 4096 different ways.

The maximum password length for crypt_unix is 8 characters.

Usage

The return value of the crypt_unix algorithm might not be portable among standard-conforming systems. See standards(5).

Attributes

See attributes(5) for descriptions of the following attributes:

ATTRIBUTE TYPE
ATTRIBUTE VALUE
MT-Level
Safe

See Also

passwd(1), crypt(3C), crypt_genhash_impl(3C), crypt_gensalt(3C), crypt_gensalt_impl(3C), getpassphrase(3C), crypt.conf(4), passwd(4), policy.conf(4), attributes(5), crypt_bsdbf(5), crypt_bsdmd5(5), crypt_sunmd5(5), standards(5)