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@ -15,12 +15,12 @@ SPDX-License-Identifier: CC0-1.0
_apg-go_ is a simple APG-like password generator written in Go. It tries to replicate the _apg-go_ is a simple APG-like password generator written in Go. It tries to replicate the
functionality of the functionality of the
"[Automated Password Generator](https://web.archive.org/web/20130313042424/http://www.adel.nursat.kz:80/apg)", "[Automated Password Generator](https://web.archive.org/web/20130313042424/http://www.adel.nursat.kz:80/apg)",
which hasn't been maintained since 2003. Since more and more Unix distributions are abondoning the tool, I was which hasn't been maintained since 2003. Since more and more Unix distributions are abandoning the tool, I was
looking for an alternative. FreeBSD for example recommends "security/makepasswd", which is written in Perl looking for an alternative. FreeBSD for example recommends "security/makepasswd", which is written in Perl
but requires a lot of dependency packages and doesn't offer the feature-set/flexibility of APG. but requires a lot of dependency packages and doesn't offer the feature-set/flexibility of APG.
Since FIPS-181 (pronouncable passwords) has been withdrawn in 2015, apg-go does not follow this standard. Instead Since FIPS-181 (pronounceable passwords) has been withdrawn in 2015, apg-go does not follow this standard. Instead,
it implements the [Koremutake Syllables System](https://shorl.com/koremutake.php) in its pronouncable password mode. it implements the [Koremutake Syllables System](https://shorl.com/koremutake.php) in its pronounceable password mode.
## Installation ## Installation
@ -229,7 +229,7 @@ $ ./apg-go -n 1 -C
### Password length ### Password length
By default, apg-go will generate a password with a random length between 12 and 20 characters. If you By default, apg-go will generate a password with a random length between 12 and 20 characters. If you
want to be more specific, you can use the `-m` and `-x` parameters to override the defaults. Let's want to be more specific, you can use the `-m` and `-x` parameters to override the defaults. Let's
assume you want a single complex password with a length of exactly 32 characters, you can do so by assume you want a single complex password with a length of exactly 32 characters you can do so by
running: running:
```shell ```shell
$ ./apg-go -n 1 -C -m 32 -x 32 $ ./apg-go -n 1 -C -m 32 -x 32
@ -252,26 +252,26 @@ fUTDKeFsU+zn3r= (foxtrot/Uniform/Tango/Delta/Kilo/echo/Foxtrot/sierra/Uniform/PL
``` ```
### Pronouncable passwords ### Pronouncable passwords
Since v0.4.0 apg-go supports pronouncable passwords, anologous to the original c-apg using the `-a 0` Since v0.4.0 apg-go supports pronounceable passwords, anologous to the original c-apg using the `-a 0`
flag. The original c-apg implemented FIPS-181, which was withdrawn in 2015 for generating pronouncable flag. The original c-apg implemented FIPS-181, which was withdrawn in 2015 for generating pronounceable
passwords. Since the standard is not recommended anymore, `apg-go` instead make use of the passwords. Since the standard is not recommended anymore, `apg-go` instead make use of the
[Koremutake Syllables System](https://shorl.com/koremutake.php). Similar to the original apg, `agp-go` [Koremutake Syllables System](https://shorl.com/koremutake.php). Similar to the original apg, `agp-go`
will automatically randomly add special characters and number (from the human-readable pool) to each will automatically randomly add special characters and number (from the human-readable pool) to each
generated pronouncable password. Additionally it will perform a "coinflip" for each Koremutake syllable generated pronounceable password. Additionally it will perform a "coinflip" for each Koremutake syllable
and decided if it should switch the case of one of the characters to an upper-case character. and decided if it should switch the case of one of the characters to an upper-case character.
Using the `-t` parameter, `apg-go` will display a spelled out version of the pronouncable password, where Using the `-t` parameter, `apg-go` will display a spelled out version of the pronounceable password, where
each syllable or number/special character is seperated with a "-" (dash) and if the syllable is not a each syllable or number/special character is seperated with a "-" (dash) and if the syllable is not a
Koremutake syllable the character will be spelled out the same was as with activated `-l` in the Koremutake syllable the character will be spelled out the same was as with activated `-l` in the
non-pronouncable password mode (`-a 1`). non-pronounceable password mode (`-a 1`).
**Note on password length**: The `-m` and `-x` parameters will work in prouncable password mode, but **Note on password length**: The `-m` and `-x` parameters will work in prouncable password mode, but
please keep in mind, that due to the nature how syllables work, your generated password might exceed please keep in mind, that due to the nature how syllables work, your generated password might exceed
the desired length by one complete syllable (which can be up to 3 characters long). the desired length by one complete syllable (which can be up to 3 characters long).
**Security consideration:** Please keep in mind, that pronouncable passwords are less secure compared to truly **Security consideration:** Please keep in mind, that pronounceable passwords are less secure compared to truly
randomly created passwords, due to the nature how syllables work. As a rule of thumb, it is recommended randomly created passwords, due to the nature how syllables work. As a rule of thumb, it is recommended
to multiply the length of your generated pronouncable passwords by at least 1.5 times, compared to truly to multiply the length of your generated pronounceable passwords by at least 1.5 times, compared to truly
randomly generated passwords. It might also be helpful to run the pronoucable password mode with enabled randomly generated passwords. It might also be helpful to run the pronoucable password mode with enabled
"[HIBP](#have-i-been-pwned)" flag, so that each generated password is automatically checked against "Have I Been Pwned" "[HIBP](#have-i-been-pwned)" flag, so that each generated password is automatically checked against "Have I Been Pwned"
database. database.
@ -310,7 +310,7 @@ character class. If one of the arguments is give, apg-go will generate passwords
of characters of the corresponding class is given. of characters of the corresponding class is given.
**Note on minimum characters**: Please keep in mind, that due to the way the "minimum amount" feature works, **Note on minimum characters**: Please keep in mind, that due to the way the "minimum amount" feature works,
the calculation time for passwords can increase and if the amount is set too high, it can result in apt-go the calculation time for passwords can increase and if the amount is set too high, it can result in apg-go
never being able to finish the job. never being able to finish the job.
Example: Example:
@ -366,7 +366,7 @@ _apg-go_ replicates most of the parameters of the original c-apg. Some parameter
- `-H`: Avoid ambiguous characters in passwords (i. e.: 1, l, I, o, O, 0) (Default: off) - `-H`: Avoid ambiguous characters in passwords (i. e.: 1, l, I, o, O, 0) (Default: off)
- `-C`: Generate complex passwords (implies -L -U -N -S and disables -H) (Default: off) - `-C`: Generate complex passwords (implies -L -U -N -S and disables -H) (Default: off)
- `-l`: Spell generated passwords in random password mode (Default: off) - `-l`: Spell generated passwords in random password mode (Default: off)
- `-t`: Spell generated passwords in pronouncable password mode (Default: off) - `-t`: Spell generated passwords in pronounceable password mode (Default: off)
- `-p`: Check the HIBP database if the generated passwords was found in a leak before (Default: off) // *this feature requires internet connectivity* - `-p`: Check the HIBP database if the generated passwords was found in a leak before (Default: off) // *this feature requires internet connectivity*
- `-h`: Show a CLI help text - `-h`: Show a CLI help text
- `-v`: Show the version number - `-v`: Show the version number