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diff --git a/info/passcheck.texinfo b/info/passcheck.texinfo deleted file mode 100644 index 4f9abbf..0000000 --- a/info/passcheck.texinfo +++ /dev/null @@ -1,140 +0,0 @@ -\input texinfo @c -*-texinfo-*- - -@c %**start of header -@setfilename passcheck.info -@settitle passcheck -@afourpaper -@documentencoding UTF-8 -@documentlanguage en -@finalout -@c %**end of header - - -@dircategory Security -@direntry -* passcheck: (passcheck). Passphrase strength evaluator -@end direntry - - -@copying -Copyright @copyright{} 2013, 2015 Mattias Andrée - -@quotation -Permission is granted to copy, distribute and/or modify this document -under the terms of the GNU Free Documentation License, Version 1.3 or -any later version published by the Free Software Foundation; with no -Invariant Sections, with no Front-Cover Texts, and with no Back-Cover -Texts. A copy of the license is included in the section entitled -``GNU Free Documentation License''. -@end quotation -@end copying - -@ifnottex -@node Top -@top passcheck -- Passphrase strength evaluator -@insertcopying -@end ifnottex - -@titlepage -@title passcheck -@subtitle Passphrase strength evaluator -@author by Mattias Andrée (maandree) - -@page -@vskip 0pt plus 1filll -@insertcopying -@page -@end titlepage - -@contents - - - -@menu -* Overview:: Brief overview of @command{passcheck}. -* Invoking:: Executing @command{passcheck}. -* Factors:: Factors weighted in at evaulation. -* GNU Free Documentation License:: Copying and sharing this manual. -@end menu - - - -@node Overview -@chapter Overview - -@command{passcheck} is a tool that rates passphrases based on the strengths, -a highly rated passphrase is a string passphrase. You are recommended not to -use any passphrases rated below 300. - -Passphrases are read from stdin and the rating followed by the passphrase -for each passphrases is written to stdout, and stderr is quited unless the -program files. - - - -@node Invoking -@chapter Invoking - -@command{passcheck} parses each line (must end exactly with one UNIX line break) -as a passphrase and puts the (positive integer) rating before the passphrase -separated with one blankspace. - -You may want to pipe stdout to @command{sort -n} to get the strongest passphrase -at the bottom. - -Use @option{--raw} or @option{-r} if the passphrase may contain a ESC character, -otherwise it is parsed as an ANSI escape sequence which is ignored in the rating -and allows you to use colours in the passphrases. - -Server with vast amount of RAM memory may want to load the entire blacklist -into RAM and create a hash set of it. To do this, use @option{--waste-ram} or -@option{-w}. It is unreasonable to do this unless you have the process running -indefinitely and (somewhat) continuously feed passphrases. - - - -@node Factors -@chapter Factors - -@command{passcheck} weights in the following factors when evaluating -the strength of a passphrase: -@itemize @bullet -@item -The passphrase is not a known real passphrase. -Currently a list of 5189414 leaked passphrases is is used. -This list is created from several password leaks, name -lists, and dictionaries. -@item -The passphrase is not a word listed in a file -inside either ofthe directory @file{/usr/share/dict/} -abd @file{/usr/local/share/dict/}. -@item -The degree to which characters are mixed. -@item -The classes of used characters. For example non-ASCII -characters are better than ASCII chracters. -@item -The distance, on a QWERTY-keyboard, of successive keys. -@item -The length of the passphrase. -@end itemize - -It has been argued that passphrases should not form grammatically -correct sentence, even if the sentence itself if nonsense. The argument -is that the majority of possible choices of words can be eliminated for -each word position, based on the previous word. However a counterargument -for this concern is that number of possible combinations, assuming the -sentence is nonsensical, large enough even if choices can be eliminated -using grammar. Currently, evaluation based on grammar is not made, so if -you believe grammatically correct sentence should be avoided, please -manually check that the passphrase you choose does not form a grammatically -correct sentence, and preferably, not even in part. - - - -@node GNU Free Documentation License -@appendix GNU Free Documentation License -@include fdl.texinfo - -@bye - |