diff options
Diffstat (limited to 'lib/libc/crypt/crypt.3')
| -rw-r--r-- | lib/libc/crypt/crypt.3 | 44 |
1 files changed, 22 insertions, 22 deletions
diff --git a/lib/libc/crypt/crypt.3 b/lib/libc/crypt/crypt.3 index 239c9b30898..c22e4d21af5 100644 --- a/lib/libc/crypt/crypt.3 +++ b/lib/libc/crypt/crypt.3 @@ -1,4 +1,4 @@ -.\" $OpenBSD: crypt.3,v 1.12 1999/03/18 11:08:33 aaron Exp $ +.\" $OpenBSD: crypt.3,v 1.13 1999/07/09 13:35:15 aaron Exp $ .\" .\" FreeSec: libcrypt .\" @@ -94,42 +94,42 @@ and .Fa salt . .Ss "MD5" crypt: .Pp -For -.Tn MD5 -crypt the version number, -.Fa salt +For +.Tn MD5 +crypt the version number, +.Fa salt and the hashed password are separated by the ``$'' character. The maximum length of a password is limited by the length counter of the MD5 context, which is about -2**64. A valid MD5 password entry looks like this: +2**64. A valid MD5 password entry looks like this: .Pp ``$1$caeiHQwX$hsKqOjrFRRN6K32OWkCBf1''. .Pp -The whole MD5 password string is passed as +The whole MD5 password string is passed as .Fa setting for interpretation. .Ss "Blowfish" crypt: .Pp -The -.Tn Blowfish -version of crypt has 128 bits of -.Fa salt +The +.Tn Blowfish +version of crypt has 128 bits of +.Fa salt in order to make building dictionaries of common passwords space consuming. The initial state -of the -.Tn Blowfish -cipher is expanded using the +of the +.Tn Blowfish +cipher is expanded using the .Fa salt and the -.Fa password +.Fa password repeating the process a variable number of rounds, which is encoded in the password string. The maximum password length is 72. The final Blowfish password entry is created by encrypting -the string ``OrpheanBeholderScryDoubt'' with the -.Tn Blowfish +the string ``OrpheanBeholderScryDoubt'' with the +.Tn Blowfish state 64 times. .Pp -The version number, the logarithm of the number of rounds and +The version number, the logarithm of the number of rounds and the concatenation of salt and hashed password are separated by the ``$'' character. An encoded ``8'' would specify 256 rounds. @@ -137,7 +137,7 @@ A valid Blowfish password looks like this: .Pp ``$2a$12$eIAq8PR8sIUnJ1HaohxX2O9x9Qlm2vK97LJ5dsXdmB.eXF42qjchC''. .Pp -The whole Blowfish password string is passed as +The whole Blowfish password string is passed as .Fa setting for interpretation. .Ss "Traditional" crypt: @@ -285,13 +285,13 @@ first appeared in This library (FreeSec 1.0) was developed outside the United States of America as an unencumbered replacement for the U.S.-only libcrypt encryption library. -Programs linked against the +Programs linked against the .Fn crypt -interface may be exported from the U.S.A. only if they use +interface may be exported from the U.S.A. only if they use .Fn crypt solely for authentication purposes and avoid use of the other programmer interfaces listed above. Special care has been taken -in the library so that programs which only use the +in the library so that programs which only use the .Fn crypt interface do not pull in the other components. .Sh AUTHOR |