passwd_gen

A Cli utility to generate random passwords of a user defined length and quantity. My inspiration for this utility came from the "Rust Cookbook" in 1.1. Generate Random Values

Help on Usage

$ passwd_gen -h
passwd_gen 0.1.0
John Hight <https://github.com/jthight>
Generates random passwords with alphanumeric and special characters

USAGE:
passwd_gen [OPTIONS]

OPTIONS:
-c, --clipboard            Send passwords to clipboard.
-e, --extend               Enable extended special characters beyond default
-h, --help                 Print help information
-l, --length <length>      Length of password: default is 30 characters [default: 30]
-n, --number <number>      Number of passwords: default is 1 password [default: 1]
-o, --outfile <outfile>    Write output to a file instead of stdout
-s, --silent               Silent mode: no display of password on screen
-V, --version              Print version information
-y, --overwrite            Option to allow overwriting a file.

Example Usage

$ passwd_gen
f#lVvpIMdWrHG8K2ACr!wHYbIQm9JL

$ passwd_gen -e
f1!kd7:`[+^MwwABT#G|""OT!")cHI

$ passwd_gen -e -l 60
JQ76M6*e8Z=|}uh|w]i-F\~<G("06kWPS9Sb.vJ<3~Bik,r4MxHL#75fWB%t

$ passwd_gen -e -l 60 -n 10
9OdN/-7?""_iz5a^V=_GcPS;go|Zb&m13SY;Gj!VdCgd:$d-h"(w>h[e^mcB
7HO+oM5U(`.GEE4:JS#%w1E}dQFfU`&BQ-Rnkr`/xVfai'_iPM.#G8dNcI{)
N3SVdyb]+~qRK]xS5b$'|t)9bnVkY`6o2FpoU*>ll[z{,"Q1b?V7J!#Q!gAz
WP1^4<dW[J$iAF\r!6[V0`F(M`kWQ>P^?};V6,IA6O{\F|:-v@(]A]8=]U{y
5*W'dbjP;H7V9Tj=e?cPC5x!q'=<!}~>.~K"cTMB!5!duN_XP#Cjq!(%IwxM
D0H$?5S=rnAv`P:NqBCjS<uaR';na=Dkg8C;_35xpc}r;m\-]rS9vMwS{n\A
s21tt6$y`k7GmTLLuB++uMb:XrDXO?13.?MB~*Q3#1ZAChq8)j*BO<?\]p{~
U$kr6lDRE;Ug9e1/@[ff)ug=d,|k#920zOkpvLKq].;blt9{HEvQH'>wH0_v
5~u(."]1d1RB_W`@IayFbJdUg(P(Co2vAB.qiJ4l@h1$6P6dTPdx.F^M;Vrn
&{ojLxK'gdoqM"nTURqVskh,jr,?\'1L4O/SH[_f[RoJ2uc=2M+qf1iYpTS,

Example: save to file: password.txt

$ passwd_gen -e -l 60 -n 10 -o password.txt
Passwords written to: password.txt
B1VJk8>ZfaO[YjhlZ*=J`+.C<<Q6%6C-7^QlTWCqz5@E4h41:_edN>h;KOjB
nzG)Q!\_Y/`1?h<NB@bJ6zi:&cUf`Pb;`dN!6"suTOLn)oC}ZOb,4@/d?8mw
0^MN7h4*"A=Nec)j[Kv(IW*)}R!RS62n\s$kj1M>p7"yBDFmXe&/@:&)vn8X
3IJ$kiQF&i/t3'\[`nFdRrAB+j7KK"zgM\xSmSI~}y!&Uc4u^3`dAx=%?>6'
cvp&%Dq3I!8OGX?t}3FP2_W|cQ<.Sat3$Mm>_#Sdejnt#*9c!gj7kn=#=?S(
xMy9aG}s0vHA|,D'^q*}QMM@\kZB+J(S}hI`1|s/8PeFi}G6wI>Da:'@D[U+
#vygcPz1$t,GI,[>sf99{ejoO9'v&xp%8XlCK7].]M2zhTwX`Lr}`48nNX~8
w~gCw!D:tzj](jp?b5EhkYPSNEA_g<p/N2O{WMxXc23b207;~<S^3|U^#+n7
bWm50k"LAFoxzvtp)f5>$becSq('I*y|XwjMwIyIU=wOP^4uYoAH|cb%P\wz
~!1=?[bwiSSiebjMYK-&;-r0Hb#jO^L>7@OR1G|MCVioJzA{/CU3rN|V"OG8

Example: save to clipboard

$ passwd_gen -c
Passwords written to: clipboard
dCt%HUi0FvW#TCu!IjOP@ej5sEzyKk

Note: all options can be used in any combination.

Characters used to generate passwords

// Standard set of Alphanumeric and Special characters
// used to generate a password with default settings.
const CHARSET: &[u8] = b"ABCDEFGHIJKLMNOPQRSTUVWXYZ\
                        abcdefghijklmnopqrstuvwxyz\
                        0123456789*&^%$#@!";
// Extended set of Special characters used to generate
// a password when the -e or --extend option is set.
const ESPCHARSET: &[u8] = b"~`()_-+={[}]|\\:;\"'<,>.?/";