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| -rw-r--r-- | BACKLOG.md | 2 | ||||
| -rw-r--r-- | files/jotpass-0.1.0.tar.gz | bin | 0 -> 2529 bytes | |||
| -rw-r--r-- | files/jotpass.1-0.1.0.html | 126 | ||||
| -rw-r--r-- | posts/readable-random-passwords-with-jot.md | 26 |
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@@ -38,6 +38,7 @@ ## Blog +* Upgrade temp-postgres * Git checkout using fzf (git-co) * Portable sftp server/sync using config-less rclone * shellpass, shellpass-ssh, shellpass-fzf, keybindings for cwm and tmux @@ -54,7 +55,6 @@ * Filter Nix Packages by platform (e.g. Chromium on macOS) * Backup with zfs, mbuffer, lz4, and cron * Inline HTML images with this simple script -* Arch Linux on MacBook Pro * Noscript photo gallery with pure CSS carousel, responsive images and deep links * SQLite hexastore vs. Neo4j * Setup a FreeBSD sftp server with basic email notifications from the command-line using bash, ssh, and the DigitalOcean command-line application diff --git a/files/jotpass-0.1.0.tar.gz b/files/jotpass-0.1.0.tar.gz Binary files differnew file mode 100644 index 0000000..32cb339 --- /dev/null +++ b/files/jotpass-0.1.0.tar.gz diff --git a/files/jotpass.1-0.1.0.html b/files/jotpass.1-0.1.0.html new file mode 100644 index 0000000..75ab8b4 --- /dev/null +++ b/files/jotpass.1-0.1.0.html @@ -0,0 +1,126 @@ +<!DOCTYPE html> +<html> +<!-- This is an automatically generated file. Do not edit. + Copyright (c) 2021 Stefan Kreutz <mail@skreutz.com> + + Permission to use, copy, modify, and distribute this software for any + purpose with or without fee is hereby granted, provided that the above + copyright notice and this permission notice appear in all copies. + + THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES + WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF + MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR + ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES + WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN + ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF + OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. + --> +<head> + <meta charset="utf-8"/> + <meta name="viewport" content="width=device-width, initial-scale=1.0"/> + <style> + table.head, table.foot { width: 100%; } + td.head-rtitle, td.foot-os { text-align: right; } + td.head-vol { text-align: center; } + .Nd, .Bf, .Op { display: inline; } + .Pa, .Ad { font-style: italic; } + .Ms { font-weight: bold; } + .Bl-diag > dt { font-weight: bold; } + code.Nm, .Fl, .Cm, .Ic, code.In, .Fd, .Fn, .Cd { font-weight: bold; + font-family: inherit; } + </style> + <title>JOTPASS(1)</title> +</head> +<body> +<table class="head"> + <tr> + <td class="head-ltitle">JOTPASS(1)</td> + <td class="head-vol">General Commands Manual</td> + <td class="head-rtitle">JOTPASS(1)</td> + </tr> +</table> +<div class="manual-text"> +<section class="Sh"> +<h1 class="Sh" id="NAME"><a class="permalink" href="#NAME">NAME</a></h1> +<p class="Pp"><code class="Nm">jotpass</code> — <span class="Nd">Print + readable random passwords</span></p> +</section> +<section class="Sh"> +<h1 class="Sh" id="SYNOPSIS"><a class="permalink" href="#SYNOPSIS">SYNOPSIS</a></h1> +<table class="Nm"> + <tr> + <td><code class="Nm">jotpass</code></td> + <td>[<code class="Fl">-v</code>] [<code class="Fl">-a</code> + <var class="Ar">alphabet</var>] [<code class="Fl">-g</code> + <var class="Ar">groups</var>] [<code class="Fl">-w</code> + <var class="Ar">width</var>] [<code class="Fl">-s</code> + <var class="Ar">separator</var>]</td> + </tr> +</table> +</section> +<section class="Sh"> +<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1> +<p class="Pp">The <code class="Nm">jotpass</code> utility facilitates generating + random passwords suitable for handwriting.</p> +<p class="Pp">The options are as follows:</p> +<dl class="Bl-tag"> + <dt id="v"><a class="permalink" href="#v"><code class="Fl">-v</code></a></dt> + <dd>Enable verbose mode. Causes <code class="Nm">jotpass</code> to print the + entropy of the generated password to standard error.</dd> + <dt id="a"><a class="permalink" href="#a"><code class="Fl">-a</code></a> + <var class="Ar">alphabet</var></dt> + <dd>Draw characters from the given <var class="Ar">alphabet</var>. Defaults to + alphanumeric ASCII characters, excluding 01klnuvIO to improve + legibility.</dd> + <dt id="g"><a class="permalink" href="#g"><code class="Fl">-g</code></a> + <var class="Ar">groups</var></dt> + <dd>Set the number of <var class="Ar">groups</var>. Defaults to 12.</dd> + <dt id="w"><a class="permalink" href="#w"><code class="Fl">-w</code></a> + <var class="Ar">width</var></dt> + <dd>Set the <var class="Ar">width</var> of the groups. Defaults to 4 + characters.</dd> + <dt id="s"><a class="permalink" href="#s"><code class="Fl">-s</code></a> + <var class="Ar">separator</var></dt> + <dd>Set the group <var class="Ar">separator</var> character. Defaults to dash + (-).</dd> +</dl> +</section> +<section class="Sh"> +<h1 class="Sh" id="EXIT_STATUS"><a class="permalink" href="#EXIT_STATUS">EXIT + STATUS</a></h1> +<p class="Pp">The <code class="Nm">jotpass</code> utility exits 0 on + success, and >0 if an error occurs.</p> +</section> +<section class="Sh"> +<h1 class="Sh" id="EXAMPLES"><a class="permalink" href="#EXAMPLES">EXAMPLES</a></h1> +<p class="Pp">Print a random password:</p> +<div class="Bd Pp Bd-indent Li"> +<pre>$ jotpass +P6ji-4pRZ-Ze7m-q7Bp-Vpye-HCjr-hygF-6TwQ-oRJT-yx6p-SyMB-AwUm</pre> +</div> +<p class="Pp">Specify a custom format:</p> +<div class="Bd Pp Bd-indent Li"> +<pre>$ jotpass -a 0123456789abcdef -g 8 -w 2 -s ' ' -v +49 1b 6e b0 e2 fc 16 b1 +The generated password has an entropy of 64 bits.</pre> +</div> +</section> +<section class="Sh"> +<h1 class="Sh" id="SEE_ALSO"><a class="permalink" href="#SEE_ALSO">SEE + ALSO</a></h1> +<p class="Pp"><a class="Xr">jot(1)</a>, <a class="Xr">arc4random(3)</a></p> +</section> +<section class="Sh"> +<h1 class="Sh" id="AUTHORS"><a class="permalink" href="#AUTHORS">AUTHORS</a></h1> +<p class="Pp"><span class="An">Stefan Kreutz</span> + <<a class="Mt" href="mailto:mail@skreutz.com">mail@skreutz.com</a>></p> +</section> +</div> +<table class="foot"> + <tr> + <td class="foot-date">October 12, 2021</td> + <td class="foot-os">OpenBSD 7.0</td> + </tr> +</table> +</body> +</html> diff --git a/posts/readable-random-passwords-with-jot.md b/posts/readable-random-passwords-with-jot.md new file mode 100644 index 0000000..20bfb44 --- /dev/null +++ b/posts/readable-random-passwords-with-jot.md @@ -0,0 +1,26 @@ +--- +title: "Readable random passwords with jot" +description: "A BSD utility to generate strong passwords suitable for handwriting." +published: 2021-10-12 +--- + +My handwriting is hardly readable. +Without the context of words, several pairs of characters are almost indistguishable, e.g., *O* and *0*, *u* and *n*, or *1* and *l*. +Yet, I sometimes need to come up with and write down strong passwords to be deciphered by my future self, or some unlucky other person. +That's why I created a small script to generate random passwords specifically intended for handwriting. + +I called the script `jotpass` because it wraps the `jot(1)` utility shipped with [OpenBSD](https://man.openbsd.org/OpenBSD-6.9/jot), [NetBSD](https://man.netbsd.org/NetBSD-9.2-STABLE/jot.1), [FreeBSD](https://www.freebsd.org/cgi/man.cgi?query=jot&apropos=0&sektion=0&manpath=FreeBSD+13.0-RELEASE&arch=default&format=html), and others. +By default, it prints a random sequence of 12 dash-separated groups of four unambiguous ASCII letters and digits each. +However, you can change the alphabet, the number and width of groups, and the separator as described in the [man page](/files/jotpass.1-0.1.0.html). +For example: + + $ jotpass + P6ji-4pRZ-Ze7m-q7Bp-Vpye-HCjr-hygF-6TwQ-oRJT-yx6p-SyMB-AwUm + + $ jotpass -a 0123456789abcdef -g 8 -w 2 -s ' ' -v + 49 1b 6e b0 e2 fc 16 b1 + The generated password has an entropy of 64 bits. + +You can download a standard release tarball [here](/files/jotpass-0.1.0.tar.gz). +The script targets OpenBSD, but it should work on other BSD variants alike. +Feel free to drop me a mail if you have any feedback. |